单项选择题

Passage 3
In spite of rising concern in the Northeast and Canada, Administration spokesmen have repeatedly insisted that nothing could really be done about acid rain and the industry-produced sulfur emissions until all the scientific facts were in. Suddenly last week, however, facts came raining down, in effect making further scientific debate on what mainly causes the problem all but irrelevant.
What brought about the downpour was a study commissioned by Presidential Science Adviser. The spokesmen plainly called for remedial action even if some technical questions about acid rain were still unanswered. "If we take the conservative point of view that we must wait until the scientific knowledge is definitive," said the spokesman, "The accumulated deposition and damaged environment may reach the point of ’irreversibility.’"
When it rains, it pours. Next came a study from the National Research Council. Its definitive conclusion: reducing emissions of sulfur dioxide from coal-burning power plants and factories, such as these in the Midwest, would in fact significantly reduce the acidity in rain, snow and other precipitation that is widely believed to be worsening the life from fresh-water lakes and forests in the Northeast and Canada. The spokesman did not recommend any specific action.
A pair of remedial measures are already taken before Congress. A Senate committee recently approved a bill that would require reduction over the next decade of sulfur-dioxide emissions by 10 million tons in the States bordering on the east of the Mississippi. A tougher measure was introduced in the House ordering the 50 largest sulfur polluters in the U.S. to cut emissions substantially. To ease the Eastern coal mining industry, which fears a switch to low-sulfur Western coal, the bill requires the installation of expensive "scrubbers", devices for removing sulfur from the smoke, rather than an order that forbids high-sulfur fuel. Still, the legislation is being vigorously opposed by the coal industry and utilities, especially in the Mid-west, where heavy industries are battling to survive. In a survey also released last week, the Edison Electric Institute, an industry group, gravely predicted that electricity rates could rise as much as 50% if the emission-control legislation passed.
Government studies dispute these figures, but Congress has been suspended on acid-rain measures. Now, as a result of the academy study, supporters of the bills are more optimistic. Nevertheless, a major political battle is shaping up.

This article most probably appeared in()

A. a government document
B. a news magazine
C. a scientific research paper
D. a textbook of environmental science

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单项选择题

Passage 1
The evolution of the social sciences has reached a crucial point that might be called a phase change in which old, atomistic, and impressionistic ways of doing research are superseded by a far more systematic and united methodology. To bring social sciences to the level of rigor already achieved by some of the physical sciences, a new type of facility will be needed. This will be a trans-disciplinary, Internet-based collaboratory that will provide social and behavioral scientists with the databases, software and hardware tools, and other resources to conduct worldwide research that integrates experimental, survey, geographic, and economic methodologies on a much larger scale than was possible previously. This facility will enable advanced research and professional education in economics, sociology, political science, social geography, and related fields.
In many branches of social sciences, a new emphasis on the rigor of formal laboratory experimentation has driven researchers to develop procedure and software to conduct online interaction experiment using computer terminals attached to local area networks. The opportunity to open these laboratories to the Internet will reduce the cost per research participant and increase greatly the number of institutions, researchers, students, and research participants who can take part. The scale of social sciences experimentation can increase by an order of magnitude or more, examining a much wider range of phenomena and ensuring great confidence in results through multiple replication of crucial studies.
Technology for administering questionnaires to very large numbers of respondents over the Internet will revolutionize survey research. Data from past questionnaire surveys can be the springboard for new surveys with vastly larger numbers of respondents at lower cost than by traditional methods. Integrated researches can combine modules using both questionnaire and experimental methods.Results can be linked via geographic analysis to other sources of data including census information, economic statistics, and data from other experiments and surveys. Longitudinal studies will conduct time-series comparisons across data sets to chart social and economic trends. Each new study will be designed so that the data automatically and instantly becomes part of the archives, and scientific publications will be linked to the data sets on which they are based so that the network becomes a universal knowledge system.

A "phase change" (Para. 1) is one in which()

A. an old period ends and a new period begins
B. a gradual invisible transition takes place
C. fragments are united into a whole
D. social sciences come to be united with physical sciences

单项选择题

Passage 1
The evolution of the social sciences has reached a crucial point that might be called a phase change in which old, atomistic, and impressionistic ways of doing research are superseded by a far more systematic and united methodology. To bring social sciences to the level of rigor already achieved by some of the physical sciences, a new type of facility will be needed. This will be a trans-disciplinary, Internet-based collaboratory that will provide social and behavioral scientists with the databases, software and hardware tools, and other resources to conduct worldwide research that integrates experimental, survey, geographic, and economic methodologies on a much larger scale than was possible previously. This facility will enable advanced research and professional education in economics, sociology, political science, social geography, and related fields.
In many branches of social sciences, a new emphasis on the rigor of formal laboratory experimentation has driven researchers to develop procedure and software to conduct online interaction experiment using computer terminals attached to local area networks. The opportunity to open these laboratories to the Internet will reduce the cost per research participant and increase greatly the number of institutions, researchers, students, and research participants who can take part. The scale of social sciences experimentation can increase by an order of magnitude or more, examining a much wider range of phenomena and ensuring great confidence in results through multiple replication of crucial studies.
Technology for administering questionnaires to very large numbers of respondents over the Internet will revolutionize survey research. Data from past questionnaire surveys can be the springboard for new surveys with vastly larger numbers of respondents at lower cost than by traditional methods. Integrated researches can combine modules using both questionnaire and experimental methods.Results can be linked via geographic analysis to other sources of data including census information, economic statistics, and data from other experiments and surveys. Longitudinal studies will conduct time-series comparisons across data sets to chart social and economic trends. Each new study will be designed so that the data automatically and instantly becomes part of the archives, and scientific publications will be linked to the data sets on which they are based so that the network becomes a universal knowledge system.

It is implied in the first paragraph that()

A. there should be no difference in methodology between physical and social sciences
B. social sciences lag far behind physical science in terms of methodology
C. social sciences have achieved little due to limited data
D. the Internet can never advance scientific research unless it is properly used

单项选择题

Passage 1
The evolution of the social sciences has reached a crucial point that might be called a phase change in which old, atomistic, and impressionistic ways of doing research are superseded by a far more systematic and united methodology. To bring social sciences to the level of rigor already achieved by some of the physical sciences, a new type of facility will be needed. This will be a trans-disciplinary, Internet-based collaboratory that will provide social and behavioral scientists with the databases, software and hardware tools, and other resources to conduct worldwide research that integrates experimental, survey, geographic, and economic methodologies on a much larger scale than was possible previously. This facility will enable advanced research and professional education in economics, sociology, political science, social geography, and related fields.
In many branches of social sciences, a new emphasis on the rigor of formal laboratory experimentation has driven researchers to develop procedure and software to conduct online interaction experiment using computer terminals attached to local area networks. The opportunity to open these laboratories to the Internet will reduce the cost per research participant and increase greatly the number of institutions, researchers, students, and research participants who can take part. The scale of social sciences experimentation can increase by an order of magnitude or more, examining a much wider range of phenomena and ensuring great confidence in results through multiple replication of crucial studies.
Technology for administering questionnaires to very large numbers of respondents over the Internet will revolutionize survey research. Data from past questionnaire surveys can be the springboard for new surveys with vastly larger numbers of respondents at lower cost than by traditional methods. Integrated researches can combine modules using both questionnaire and experimental methods.Results can be linked via geographic analysis to other sources of data including census information, economic statistics, and data from other experiments and surveys. Longitudinal studies will conduct time-series comparisons across data sets to chart social and economic trends. Each new study will be designed so that the data automatically and instantly becomes part of the archives, and scientific publications will be linked to the data sets on which they are based so that the network becomes a universal knowledge system.

Why do researchers begin to show interest in online interaction experiment()

A. To reduce the cost per research participant
B. To upgrade the level of rigor of research in social sciences
C. To conduct worldwide research that was unfeasible before
D. To take full advantage of achievements made by physical sciences

单项选择题

Passage 1
The evolution of the social sciences has reached a crucial point that might be called a phase change in which old, atomistic, and impressionistic ways of doing research are superseded by a far more systematic and united methodology. To bring social sciences to the level of rigor already achieved by some of the physical sciences, a new type of facility will be needed. This will be a trans-disciplinary, Internet-based collaboratory that will provide social and behavioral scientists with the databases, software and hardware tools, and other resources to conduct worldwide research that integrates experimental, survey, geographic, and economic methodologies on a much larger scale than was possible previously. This facility will enable advanced research and professional education in economics, sociology, political science, social geography, and related fields.
In many branches of social sciences, a new emphasis on the rigor of formal laboratory experimentation has driven researchers to develop procedure and software to conduct online interaction experiment using computer terminals attached to local area networks. The opportunity to open these laboratories to the Internet will reduce the cost per research participant and increase greatly the number of institutions, researchers, students, and research participants who can take part. The scale of social sciences experimentation can increase by an order of magnitude or more, examining a much wider range of phenomena and ensuring great confidence in results through multiple replication of crucial studies.
Technology for administering questionnaires to very large numbers of respondents over the Internet will revolutionize survey research. Data from past questionnaire surveys can be the springboard for new surveys with vastly larger numbers of respondents at lower cost than by traditional methods. Integrated researches can combine modules using both questionnaire and experimental methods.Results can be linked via geographic analysis to other sources of data including census information, economic statistics, and data from other experiments and surveys. Longitudinal studies will conduct time-series comparisons across data sets to chart social and economic trends. Each new study will be designed so that the data automatically and instantly becomes part of the archives, and scientific publications will be linked to the data sets on which they are based so that the network becomes a universal knowledge system.

The greatest advantage with the Internet-based collaboratory may lie in()

A. the greater cost reduction and availability of data in research
B. its promptness in putting research results into practice
C. its capability to reexamine the validity of traditional research
D. its potentiality in integrating social sciences into physical sciences

单项选择题

Passage 1
The evolution of the social sciences has reached a crucial point that might be called a phase change in which old, atomistic, and impressionistic ways of doing research are superseded by a far more systematic and united methodology. To bring social sciences to the level of rigor already achieved by some of the physical sciences, a new type of facility will be needed. This will be a trans-disciplinary, Internet-based collaboratory that will provide social and behavioral scientists with the databases, software and hardware tools, and other resources to conduct worldwide research that integrates experimental, survey, geographic, and economic methodologies on a much larger scale than was possible previously. This facility will enable advanced research and professional education in economics, sociology, political science, social geography, and related fields.
In many branches of social sciences, a new emphasis on the rigor of formal laboratory experimentation has driven researchers to develop procedure and software to conduct online interaction experiment using computer terminals attached to local area networks. The opportunity to open these laboratories to the Internet will reduce the cost per research participant and increase greatly the number of institutions, researchers, students, and research participants who can take part. The scale of social sciences experimentation can increase by an order of magnitude or more, examining a much wider range of phenomena and ensuring great confidence in results through multiple replication of crucial studies.
Technology for administering questionnaires to very large numbers of respondents over the Internet will revolutionize survey research. Data from past questionnaire surveys can be the springboard for new surveys with vastly larger numbers of respondents at lower cost than by traditional methods. Integrated researches can combine modules using both questionnaire and experimental methods.Results can be linked via geographic analysis to other sources of data including census information, economic statistics, and data from other experiments and surveys. Longitudinal studies will conduct time-series comparisons across data sets to chart social and economic trends. Each new study will be designed so that the data automatically and instantly becomes part of the archives, and scientific publications will be linked to the data sets on which they are based so that the network becomes a universal knowledge system.

All of the following are defeats with the traditional survey in the form of questionnaires EXCEPT()

A. a restricted range of investigation
B. greater cost in administering them
C. lack of precision compared with experiments
D. difficulty in being confirmed by other kinds of research

单项选择题

Passage 2
Is it possible that the ideas we have today about ownership and property rights have been so universal in the human mind that it is truly as if they had sprung from the mind of God By no means. The idea of owning and property emerged in the mists of unrecorded history. The ancient Jews, for one, had a very different outlook on property and ownership, viewing it as something much more temporary and tentative than we do.
The ideas we have in America about the private ownership of productive property as a natural and universal right of mankind, perhaps of divine origin, are by no means universal and must be viewed as an invention of man rather than an order of God. Of course, we are completely trained to accept the idea of ownership of the earth and its products, raw and transformed. It seems not at all strange; in fact, it is quite difficult to imagine a society without such arrangements. If someone, some individual, didn’t own that plot of land, that house, that factory, that machine, that tower of wheat, how would we function What would the rules be Whom would we buy from and how would we sell
It is important to acknowledge a significant difference between achieving ownership simply by taking or claiming property and owning what we tend to call the "fruit of labor". If I, alone or together with my family, work on the land and raise crops, or if I make something useful out of natural material, it seems reasonable and fair to claim that the crops or the objects belong to me or my family, are my property, at least in the sense that I have first claim on them. Hardly anyone would dispute that. In fact, some of the early radical workingmen’s movements made (an ownership) claim on those very grounds. As industrial organization became more complex, however, such issues became vastly more intricate. It must be clear that in modern society the social heritage of knowledge and technology and the social organization of manufacture and exchange account for far more of the productivity of industry and the value of what is produced than can be accounted for by the labor of any number of individuals. Hardly any person can now point and say, "That--that right there--is the fruit of my labor." We can say, as a society, as a nation--as a world, really--that what is produced is the fruit of our labor, the product of the whole society as a collectivity.
We have to recognize that the right of private individual ownership of property is man-made and constantly dependent on the extent to which those without property believe that the owner can make his claim stick.

According to the text, the concept of ownership probably()

A. resulted from the unrecognized ancient history
B. stemmed from the remote prehistoric times
C. arose from the generous blessing of the Creator
D. originated from the undetected distant periods

单项选择题

Passage 3
In spite of rising concern in the Northeast and Canada, Administration spokesmen have repeatedly insisted that nothing could really be done about acid rain and the industry-produced sulfur emissions until all the scientific facts were in. Suddenly last week, however, facts came raining down, in effect making further scientific debate on what mainly causes the problem all but irrelevant.
What brought about the downpour was a study commissioned by Presidential Science Adviser. The spokesmen plainly called for remedial action even if some technical questions about acid rain were still unanswered. "If we take the conservative point of view that we must wait until the scientific knowledge is definitive," said the spokesman, "The accumulated deposition and damaged environment may reach the point of ’irreversibility.’"
When it rains, it pours. Next came a study from the National Research Council. Its definitive conclusion: reducing emissions of sulfur dioxide from coal-burning power plants and factories, such as these in the Midwest, would in fact significantly reduce the acidity in rain, snow and other precipitation that is widely believed to be worsening the life from fresh-water lakes and forests in the Northeast and Canada. The spokesman did not recommend any specific action.
A pair of remedial measures are already taken before Congress. A Senate committee recently approved a bill that would require reduction over the next decade of sulfur-dioxide emissions by 10 million tons in the States bordering on the east of the Mississippi. A tougher measure was introduced in the House ordering the 50 largest sulfur polluters in the U.S. to cut emissions substantially. To ease the Eastern coal mining industry, which fears a switch to low-sulfur Western coal, the bill requires the installation of expensive "scrubbers", devices for removing sulfur from the smoke, rather than an order that forbids high-sulfur fuel. Still, the legislation is being vigorously opposed by the coal industry and utilities, especially in the Mid-west, where heavy industries are battling to survive. In a survey also released last week, the Edison Electric Institute, an industry group, gravely predicted that electricity rates could rise as much as 50% if the emission-control legislation passed.
Government studies dispute these figures, but Congress has been suspended on acid-rain measures. Now, as a result of the academy study, supporters of the bills are more optimistic. Nevertheless, a major political battle is shaping up.

The first paragraph shows that()

A. the Administration has ignored the public anxiety about acid rain
B. the industrial sulfur emissions need further scientific verification
C. the spokesmen have denied the presence of proofs of acid rain
D. scientific evidence has made the cause of acid rain undebatable

单项选择题

Passage 4
International airlines have rediscovered the business traveler. This does not necessarily mean that airlines ever abandoned their business travelers, but many airlines were accused of concentrating too heavily in the recent past on attracting passengers by volume, often at the expense of the business traveler.
Operating a major airline is essentially a matter of finding the right mix of passengers. The airlines need to fill up the back end of their wide-bodied jets with low fare passengers without forgetting that the front end should be filled with people who pay substantially more for their tickets.
It is no coincidence that the recent two major airlines bankruptcies were among the companies specializing in cheap flights. But low fares require consistently full aircraft to make flights economically viable; and in the recent recession the volume of traffic has reduced. Equally the large number of airliners jostling for the available passengers has created a huge excess of capacity; the net result of excess capacity and cut-throat competition driving down fares has been to push some airlines into collapse and leave many others hovering on the brink.
Against this grim background, it is no surprise that airlines are turning increasingly towards the business travelers to improve their rates of return; they have invested much time and effort to establish exactly the executive’s demands for sitting apart from the tourists.
High on the list of priorities is punctuality. In-flight service is another area where the airlines are jostling for the executive’s attention. The free drinks and headsets and better food are other parts of the attention. First-class passengers are now offered sleeperette seats.
The airlines are also trying to improve things on the ground. Executive lounges are intended to make the inevitable waiting between flights a little more bearable. Luggage handling is being improved. Regrettably, there is little that the airlines can do to speed up the boring immigration and Customs process, which upsets and frustrates passengers of all classes.
Although it is the airlines’ intention to attract executive passengers from their rivals, the airlines themselves would do nothing to change one bad habit of this kind of traveler--the habit of booking a flight and then failing to turn up. The practice is particularly widespread in Europe, where businessmen frequently book return journeys home on one of several flights. As a result, the airlines throw away empty seats, which cannot be resold. Some airlines have attempted to prevent the practice by offering discounts to passengers who travel on their booked flight. But this inevitably means that the structure of air fares, already highly complex, becomes even more baffling.

One criticism against many international airlines is that they have, in the recent past, ()

A. abandoned their business travelers
B. contended with each other for the available passengers
C. given preferential treatment to executive passengers
D. marketed their services with masses in mind

单项选择题

Passage 8
Researchers are increasingly interested in manipulating the environment early in children’s lives when they are perceived to be at risk for impoverished intelligence. In a program conducted in North Carolina by Craig Ramey and his associates, pregnant women with IQs averaging 80 were recruited for a study. After their babies were born,half of the infants were cared for during the day at an educational daycare center and half were reared at home by their mothers; both groups of children were given medical care and dietary supplements, and their families were given social services if they requested them.
At the age of 3, the children who attended the educational daycare center had significantly higher IQs than did the home-reared children. This difference was likely due to the decline in the IQs of the home-reared children during the period from 12 to 18 months of age. By the time the children were 5 years old, 39 percent of the home-reared children had IQs below 85 but only 11 percent of the educational day-care children had IQs this low. In the most recent evaluation of this project, positive effects of educational daycare on the intellectual development and academic achievement of the children were evident at age 12.
Some parents, such as those in Ramey’s study, have difficulty providing an adequate environment for the intellectual needs of their infants. Once these difficulties are a reoccurring part of the family system, changing efforts probably will be more difficult and costly; early intervention in the family system is directed at changing parental adaptive and responsive functioning so that permanent negative effects are minimized.
In another investigation, the Infant Health and Development Program, early intervention with low-birth weight children revealed that both home visitation and an educational child curriculum improved the children’s IQ, decreased behavior problems, and improved the home environment. The intervention was more effective with mothers with low educational attainment than those with high educational attainment, more effective for African American than White children, and effective for most at-risk children.
Intervention programs have the most positive effects on children’s well-being when they (a) begin as early as possible, (b) provide services to parents as well as to the child, (c) have a low child-teacher ratio, (d) have high parental involvement, and (e) have frequent contacts. In one review of family intervention studies, intervention was more effective when there were eleven or more contacts between the intervener and the family; while eleven sessions is a somewhat arbitrary number, it does indicate that a certain duration of contact is necessary for intervention success.

From the first sentence of the first paragraph, we learn that researchers()

A. have increased the risks to child growth by manipulating the natural environment
B. are increasingly aware of the effects of environmental factors on intelligence development
C. are increasingly interested in manipulating the environment without being aware of the risks involved to children
D. are increasingly interested in figuring out how intelligence is developed in early childhood

单项选择题

Passage 9
One of the most pressing challenges that the United States--and indeed, the world--will face in the next few decades is how to alleviate the growing stress that human activities are placing on the environment. The consequences are just too great to ignore. Wildlife habitats are being degraded or disappearing altogether as new developments take up more land. Plant and animal species are becoming extinct at a greater rate now than at any time in Earth’s history. As many as 30 percent of the world’s fish stocks are overexploited. And the list goes on.
Yet, there is reason to have hope for the future. Advances in computing power and molecular biology are among the tremendous increases in scientific capability that are helping researchers gain a better understanding of these problems. Recent developments in science and technology could provide the basis for some major, and timely actions that would improve our understanding of how human activities affect the environment.
One priority for research is improving hydrological forecasting. It has been estimated that the world’s water use could triple in the next two decades. Already, widespread water shortages have occurred in parts of China, India, North Africa, and the Arabian Peninsula. The need for water also is taking its toll on freshwater ecosystems in the United States. Only 2 percent of the nation’s streams are considered in good condition, and close to 40 percent of native fish species are rare to extinct. Using a variety of new remote sensing tools, scientists can learn more about how precipitation affects water levels, how surface water is generated and transported, and how changes in the landscape affect water supplies.
To prevent outbreaks of infectious diseases in plants, animals, and humans, more study is needed on how pathogens, parasites, and disease-carrying species--as well as humans and other species they infect--are affected by changes in the environment. The overuse of antibiotics both in humans and in farm animals has contributed to the growth of antibiotic-resistant microorganisms. Researchers can take advantage of new technologies in genetics and computing to better monitor and predict the effects that environmental changes might have on disease outbreaks.
Humans have made alterations to Earth’s surface--such as tropical deforestation, reduction of surface and ground water, and massive development--so dramatic that they approach the levels of transformation that occurred during glacial periods. Such alterations cause changes in local and regional climate, and will determine the future of agriculture. Recent advances in data collection and analysis should be used to document and better understand the causes and consequences of changes in land cover and use.

The sentence "And the list goes on." (Para. 1) is used to suggest that()

A. there are many more ways in which humans are hurting the environment
B. environmental degradation is continuing unabated
C. the total of animal and plant species facing extinction are too numerous to list
D. in addition to fish, many other plant and animal species face over-exploitation by humans

单项选择题

Passage 5
What our society suffers from most today is the absence of consensus about what it and life in it ought to be, such consensus cannot be gained from society’s present stage, or from fantasies about what it ought to be. For that the present is too close and too diversified, and the future too uncertain, to make believable claims about it. A consensus in the present hence can be achieved only through a shared understanding of the past, as Homer’s epics informed those who lived centuries later what it meant to be Greek, and by what images and ideals they were to live their lives and organize their societies.
Most societies derive consensus from a long history, a language all their own, a common religion, common ancestry. The myths by which they live are based on all of these. But the United States is a country of immigrants, coming from a great variety of nations. Lately, it has been emphasized that an asocial, narcissistic personality has become characteristic of Americans, and that it is this type of personality that makes for the lack of well-being, because it prevents us from achieving consensus that would counteract a tendency to withdraw into private worlds. In this study of narcissism, Christopher Lash says that modern man, "tortured by self-consciousness, turns to new therapies not to free himself of his personal worries but to find meaning and purpose in life, to find something to live for". There is widespread distress because national morale has declined, and we have lost an earlier sense of national vision and purpose.
Contrary to rigid religions or political beliefs, as are found in totalitarian societies, our culture is one of the great individual differences, at least in principle and in theory; but this leads to disunity, even chaos. Americans believe in the value of diversity, but just because our is a society based on individual diversity, it needs consensus about some dominating ideas more than societies based on uniform origin of their citizens. Hence, if we are to have consensus, it must be based on a myth--a vision about a common experience, a conquest that made us Americans, as the myth about the conquest of Troy formed the Greeks. Only a common myth can offer relief from the fear that life is without meaning or purpose. Myths permit us to examine our place in the world by comparing it to a shared idea. Myths are shared fantasies that form the tie that binds the individual to other members of his group. Such myths help to ward off feelings of isolations, guilt, anxiety, and purposelessness--in short, they combat isolation and the breakdown of social standards and values.

In the author’s view, the greatest trouble with the U.S. society lies in the()

A. lack of serious disagreement over the organizations of social life
B. non-existence of unanimity on the forms the society should take
C. general denying of its conformity with what it was unexpected to be
D. public negation of the consensus on how to conduct social reforms

单项选择题

Passage 10
It is a well-known fact that there are constant conflicts among different groups of people, and that people tend to blame their misfortunes on some outside other groups for their misfortunes. What are the causes of group prejudice There seems to be little doubt that one of the principal causes of prejudice is fear: in particular the fear that the interests of our own group are going to be endangered by the actions of another. This is less likely to be the case in a stable, relatively unchanging society in which the members of different social and occupational groups know what to expect of each other, and know what to expect for themselves. In times of rapid social and economic change, however, new occupations and new social roles appear, and people start looking jealously at each other to see whether their own group is being left behind.
Once prejudice develops, it is hard to stop, because there are often social forces at work which actively encourage unfounded attitudes of hostility and fear towards other groups. One such force is education: we all know that children can be taught history in such a way as to perpetuate old hatreds and old prejudices between racial and political groups. Another social influence that has to be reckoned with is the pressure of public opinion. People often think and act differently in groups from the way that they would do as individuals; it takes a considerable effort of will, and often calls for great courage, to stand out against one’s fellows and insist they are wrong.
Why is it that we hear so much more about the failures of relationships between communities than we do about the successes I am afraid it is partly due to the increase in communications which radio, television and the popular press have brought about. In those countries where the media of mass communication are commercial enterprises, they tend to measure success by the size of their audience; and people are more likely to buy a newspaper, for instance, if their attention is caught by something dramatic, something sensational, or something that arouses their anxiety. The popular press flourishes on "scare headlines", and popular orators, especially if they are politicians addressing a relatively unsophisticated audience, know that the best way to arouse such an audience is to frighten them.
Where there is a real or imaginary threat to economic security, this is especially likely to inflame group prejudice. It is important to remember economic factors if we wish to lessen group prejudice, because unless they are dealt with squarely it will be little use simply persuading people not to be prejudiced against other groups whom they see as their rivals, if not their enemies.

Which of the following is NOT the source for prejudice between groups()

A. The tendency to blame misfortunes on some outside groups
B. Fear of the interests of one’s own group being threatened
C. Longstanding hatreds prevailing between racial and political groups
D. Social forces which encourage unfounded attitudes of hostility towards other groups

单项选择题

Passage 6
Taking charge of yourself involves putting to rest some very prevalent myths. At the top of the list is the notion that intelligence is measured by your ability to solve complex problems; to read, write and compute at certain levels; and to resolve abstract equations quickly. This vision of intelligence asserts formal education and bookish excellence as the true measures of self-fulfillment. It encourages a kind of intellectual prejudice that has brought with it some discouraging results. We have come to believe that someone who has more educational merit badges, who is very good at some form of school discipline, is "intelligent"; yet mental hospitals are filled with patients who have all of the properly lettered certificates. A truer indicator of intelligence is an effective, happy life lived each day and each present moment of every day.
If you are happy, if you live each moment for everything it’s worth, then you are an intelligent person. Problem solving is a useful help to your happiness, but if you know that given your inability to resolve a particular concern you can still choose happiness for yourself, or at a minimum refuse to choose unhappiness, then you are intelligent. You are intelligent because you have the ultimate weapon against the big N.B.D. --Nervous Break Down.
"Intelligent" people do not have N.B.D. because they are in charge of themselves; they know how to choose happiness over depression, because they know how to deal with the problems of their lives.
You can begin to think of yourself as truly intelligent on the basis of how you choose to feel in the face of trying circumstances. The life struggles are pretty much the same for each of us. Everyone who is involved with other human beings in any social context has similar difficulties. Disagreements, conflicts and compromises are part of what it means to be a human. Similarly, money, growing old, sickness, deaths, natural disasters and accidents are all events which present problems to virtually all human beings. But some people are able to make it, to avoid immobilizing depression and unhappiness despite such occurrences, while others collapse or have an N.B.D. Those who recognize problems as a human condition and don’t measure happiness by an absence of problems are the most intelligent kind of humans we know; also, the most rare.

The conventional notion of intelligence measured in terms of one’s ability to read, write and compute()

A. is a widely held but wrong concept
B. will help eliminate intellectual prejudice
C. is the root of all mental distress
D. will contribute to one’s self-fulfillment

单项选择题

Passage 2
Is it possible that the ideas we have today about ownership and property rights have been so universal in the human mind that it is truly as if they had sprung from the mind of God By no means. The idea of owning and property emerged in the mists of unrecorded history. The ancient Jews, for one, had a very different outlook on property and ownership, viewing it as something much more temporary and tentative than we do.
The ideas we have in America about the private ownership of productive property as a natural and universal right of mankind, perhaps of divine origin, are by no means universal and must be viewed as an invention of man rather than an order of God. Of course, we are completely trained to accept the idea of ownership of the earth and its products, raw and transformed. It seems not at all strange; in fact, it is quite difficult to imagine a society without such arrangements. If someone, some individual, didn’t own that plot of land, that house, that factory, that machine, that tower of wheat, how would we function What would the rules be Whom would we buy from and how would we sell
It is important to acknowledge a significant difference between achieving ownership simply by taking or claiming property and owning what we tend to call the "fruit of labor". If I, alone or together with my family, work on the land and raise crops, or if I make something useful out of natural material, it seems reasonable and fair to claim that the crops or the objects belong to me or my family, are my property, at least in the sense that I have first claim on them. Hardly anyone would dispute that. In fact, some of the early radical workingmen’s movements made (an ownership) claim on those very grounds. As industrial organization became more complex, however, such issues became vastly more intricate. It must be clear that in modern society the social heritage of knowledge and technology and the social organization of manufacture and exchange account for far more of the productivity of industry and the value of what is produced than can be accounted for by the labor of any number of individuals. Hardly any person can now point and say, "That--that right there--is the fruit of my labor." We can say, as a society, as a nation--as a world, really--that what is produced is the fruit of our labor, the product of the whole society as a collectivity.
We have to recognize that the right of private individual ownership of property is man-made and constantly dependent on the extent to which those without property believe that the owner can make his claim stick.

The author deems private ownership to be()

A. a necessary invention of mankind
B. an inherent right of a human being
C. a permanent arrangement for society
D. an explicit idea of some individuals

单项选择题

Passage 7
No reference book, perhaps no book of any kind except the Bible, is so widely used as "the dictionary". Even houses that have few books or none at all possess at least one dictionary; most business offices have dictionaries, and most typists keep a copy on their desks; at one time or another most girls and boys are required by their teachers to obtain and use a dictionary.
Admittedly, the dictionary is often used merely to determine the correct spelling of words, or to find out the accepted pronunciation, and such a use is perhaps not the most important from an intellectual point of view. Dictionaries may, however, have social importance, for it is often a matter of some concern to the person using the dictionary for such purpose that he should not suggest to others, by misspelling a word in a letter, or mispronouncing it in conversation, that he is not "well-bred", and has not been well educated.
Yet, despite this familiarity with the dictionary, the average person is likely to have many wrong ideas about it, and little idea of how to use it profitably, or interpret it rightly. For example, it is often believed that the mere presence of a word in a dictionary is evidence that it is acceptable in good writing. Though most dictionaries have a system of marking words as obsolete, or in use only as slang, many people, more especially if their use of a particular word has been challenged, are likely to conclude, if they find it in a dictionary, that it is accepted as being used by writers of established reputation. This would certainly have been true of dictionaries a hundred years or so ago. For a long time after they were first firmly established in the eighteenth century, their aim was to include only what was used by the best writers, and all else was suppressed, and the compiler frequently claimed that this dictionary contained "low" words. Apparently this aspect of the dictionary achieved such importance in the mind of the average person that most people today are unaware of the great change that has taken place in the compilation of present-day dictionaries.
Similarly, the ordinary man invariably supposes that one dictionary is as good and authoritative as another, and, moreover, believes that "the dictionary" has absolute authority, and quotes it to clinch arguments. Although this is an advantage, in that the dictionary presents a definition the basic meaning of which can’t be altered by the speaker, yet it could be accepted only if all dictionaries agreed on the particular point in question. But ultimately the authority of the dictionary rests only on the authority of the man who compiled it, and, however careful he may be, a dictionary-maker is fallible: reputable dictionaries may disagree in their judgments, and indeed different sections of the same dictionary may differ.

Which of the following statements is TRUE according to the passage()

A. The Bible is the most widely used reference book
B. The dictionary is the most widely used reference book
C. The dictionary is actually the more widely used book than the Bible
D. The Bible is used as widely as the dictionary

单项选择题

Passage 4
International airlines have rediscovered the business traveler. This does not necessarily mean that airlines ever abandoned their business travelers, but many airlines were accused of concentrating too heavily in the recent past on attracting passengers by volume, often at the expense of the business traveler.
Operating a major airline is essentially a matter of finding the right mix of passengers. The airlines need to fill up the back end of their wide-bodied jets with low fare passengers without forgetting that the front end should be filled with people who pay substantially more for their tickets.
It is no coincidence that the recent two major airlines bankruptcies were among the companies specializing in cheap flights. But low fares require consistently full aircraft to make flights economically viable; and in the recent recession the volume of traffic has reduced. Equally the large number of airliners jostling for the available passengers has created a huge excess of capacity; the net result of excess capacity and cut-throat competition driving down fares has been to push some airlines into collapse and leave many others hovering on the brink.
Against this grim background, it is no surprise that airlines are turning increasingly towards the business travelers to improve their rates of return; they have invested much time and effort to establish exactly the executive’s demands for sitting apart from the tourists.
High on the list of priorities is punctuality. In-flight service is another area where the airlines are jostling for the executive’s attention. The free drinks and headsets and better food are other parts of the attention. First-class passengers are now offered sleeperette seats.
The airlines are also trying to improve things on the ground. Executive lounges are intended to make the inevitable waiting between flights a little more bearable. Luggage handling is being improved. Regrettably, there is little that the airlines can do to speed up the boring immigration and Customs process, which upsets and frustrates passengers of all classes.
Although it is the airlines’ intention to attract executive passengers from their rivals, the airlines themselves would do nothing to change one bad habit of this kind of traveler--the habit of booking a flight and then failing to turn up. The practice is particularly widespread in Europe, where businessmen frequently book return journeys home on one of several flights. As a result, the airlines throw away empty seats, which cannot be resold. Some airlines have attempted to prevent the practice by offering discounts to passengers who travel on their booked flight. But this inevitably means that the structure of air fares, already highly complex, becomes even more baffling.

The main reason why two major airlines went bankrupt recently was that()

A. the recession had reduced the overall number of air passengers
B. the companies failed to attract an adequate number of passengers
C. competitions from other airliners took away all their trade
D. they introduced cheap flights for all categories of passengers

单项选择题

Passage 5
What our society suffers from most today is the absence of consensus about what it and life in it ought to be, such consensus cannot be gained from society’s present stage, or from fantasies about what it ought to be. For that the present is too close and too diversified, and the future too uncertain, to make believable claims about it. A consensus in the present hence can be achieved only through a shared understanding of the past, as Homer’s epics informed those who lived centuries later what it meant to be Greek, and by what images and ideals they were to live their lives and organize their societies.
Most societies derive consensus from a long history, a language all their own, a common religion, common ancestry. The myths by which they live are based on all of these. But the United States is a country of immigrants, coming from a great variety of nations. Lately, it has been emphasized that an asocial, narcissistic personality has become characteristic of Americans, and that it is this type of personality that makes for the lack of well-being, because it prevents us from achieving consensus that would counteract a tendency to withdraw into private worlds. In this study of narcissism, Christopher Lash says that modern man, "tortured by self-consciousness, turns to new therapies not to free himself of his personal worries but to find meaning and purpose in life, to find something to live for". There is widespread distress because national morale has declined, and we have lost an earlier sense of national vision and purpose.
Contrary to rigid religions or political beliefs, as are found in totalitarian societies, our culture is one of the great individual differences, at least in principle and in theory; but this leads to disunity, even chaos. Americans believe in the value of diversity, but just because our is a society based on individual diversity, it needs consensus about some dominating ideas more than societies based on uniform origin of their citizens. Hence, if we are to have consensus, it must be based on a myth--a vision about a common experience, a conquest that made us Americans, as the myth about the conquest of Troy formed the Greeks. Only a common myth can offer relief from the fear that life is without meaning or purpose. Myths permit us to examine our place in the world by comparing it to a shared idea. Myths are shared fantasies that form the tie that binds the individual to other members of his group. Such myths help to ward off feelings of isolations, guilt, anxiety, and purposelessness--in short, they combat isolation and the breakdown of social standards and values.

Homer’s epics mentioned in Paragraph I exemplify the fact that()

A. the present is varying too fast to be caught up easily
B. the future may be so indefinite as to be unpredictable
C. the past can help to shape a consensus in the present
D. the past determines social moralities for later generations

单项选择题

Passage 3
In spite of rising concern in the Northeast and Canada, Administration spokesmen have repeatedly insisted that nothing could really be done about acid rain and the industry-produced sulfur emissions until all the scientific facts were in. Suddenly last week, however, facts came raining down, in effect making further scientific debate on what mainly causes the problem all but irrelevant.
What brought about the downpour was a study commissioned by Presidential Science Adviser. The spokesmen plainly called for remedial action even if some technical questions about acid rain were still unanswered. "If we take the conservative point of view that we must wait until the scientific knowledge is definitive," said the spokesman, "The accumulated deposition and damaged environment may reach the point of ’irreversibility.’"
When it rains, it pours. Next came a study from the National Research Council. Its definitive conclusion: reducing emissions of sulfur dioxide from coal-burning power plants and factories, such as these in the Midwest, would in fact significantly reduce the acidity in rain, snow and other precipitation that is widely believed to be worsening the life from fresh-water lakes and forests in the Northeast and Canada. The spokesman did not recommend any specific action.
A pair of remedial measures are already taken before Congress. A Senate committee recently approved a bill that would require reduction over the next decade of sulfur-dioxide emissions by 10 million tons in the States bordering on the east of the Mississippi. A tougher measure was introduced in the House ordering the 50 largest sulfur polluters in the U.S. to cut emissions substantially. To ease the Eastern coal mining industry, which fears a switch to low-sulfur Western coal, the bill requires the installation of expensive "scrubbers", devices for removing sulfur from the smoke, rather than an order that forbids high-sulfur fuel. Still, the legislation is being vigorously opposed by the coal industry and utilities, especially in the Mid-west, where heavy industries are battling to survive. In a survey also released last week, the Edison Electric Institute, an industry group, gravely predicted that electricity rates could rise as much as 50% if the emission-control legislation passed.
Government studies dispute these figures, but Congress has been suspended on acid-rain measures. Now, as a result of the academy study, supporters of the bills are more optimistic. Nevertheless, a major political battle is shaping up.

The word "downpour" (Para. 2) most likely refers to()

A. a heavy fall of acid rain
B. a sudden thunderstorm
C. a series of criticism
D. a succession of evidence

单项选择题

Passage 9
One of the most pressing challenges that the United States--and indeed, the world--will face in the next few decades is how to alleviate the growing stress that human activities are placing on the environment. The consequences are just too great to ignore. Wildlife habitats are being degraded or disappearing altogether as new developments take up more land. Plant and animal species are becoming extinct at a greater rate now than at any time in Earth’s history. As many as 30 percent of the world’s fish stocks are overexploited. And the list goes on.
Yet, there is reason to have hope for the future. Advances in computing power and molecular biology are among the tremendous increases in scientific capability that are helping researchers gain a better understanding of these problems. Recent developments in science and technology could provide the basis for some major, and timely actions that would improve our understanding of how human activities affect the environment.
One priority for research is improving hydrological forecasting. It has been estimated that the world’s water use could triple in the next two decades. Already, widespread water shortages have occurred in parts of China, India, North Africa, and the Arabian Peninsula. The need for water also is taking its toll on freshwater ecosystems in the United States. Only 2 percent of the nation’s streams are considered in good condition, and close to 40 percent of native fish species are rare to extinct. Using a variety of new remote sensing tools, scientists can learn more about how precipitation affects water levels, how surface water is generated and transported, and how changes in the landscape affect water supplies.
To prevent outbreaks of infectious diseases in plants, animals, and humans, more study is needed on how pathogens, parasites, and disease-carrying species--as well as humans and other species they infect--are affected by changes in the environment. The overuse of antibiotics both in humans and in farm animals has contributed to the growth of antibiotic-resistant microorganisms. Researchers can take advantage of new technologies in genetics and computing to better monitor and predict the effects that environmental changes might have on disease outbreaks.
Humans have made alterations to Earth’s surface--such as tropical deforestation, reduction of surface and ground water, and massive development--so dramatic that they approach the levels of transformation that occurred during glacial periods. Such alterations cause changes in local and regional climate, and will determine the future of agriculture. Recent advances in data collection and analysis should be used to document and better understand the causes and consequences of changes in land cover and use.

The poor condition of streams in the U.S. can be attributed to()

A. overfishing of native fish species
B. lack of up-to-date monitoring equipment
C. the demand for water in the U.S
D. the global water shortage

单项选择题

Passage 8
Researchers are increasingly interested in manipulating the environment early in children’s lives when they are perceived to be at risk for impoverished intelligence. In a program conducted in North Carolina by Craig Ramey and his associates, pregnant women with IQs averaging 80 were recruited for a study. After their babies were born,half of the infants were cared for during the day at an educational daycare center and half were reared at home by their mothers; both groups of children were given medical care and dietary supplements, and their families were given social services if they requested them.
At the age of 3, the children who attended the educational daycare center had significantly higher IQs than did the home-reared children. This difference was likely due to the decline in the IQs of the home-reared children during the period from 12 to 18 months of age. By the time the children were 5 years old, 39 percent of the home-reared children had IQs below 85 but only 11 percent of the educational day-care children had IQs this low. In the most recent evaluation of this project, positive effects of educational daycare on the intellectual development and academic achievement of the children were evident at age 12.
Some parents, such as those in Ramey’s study, have difficulty providing an adequate environment for the intellectual needs of their infants. Once these difficulties are a reoccurring part of the family system, changing efforts probably will be more difficult and costly; early intervention in the family system is directed at changing parental adaptive and responsive functioning so that permanent negative effects are minimized.
In another investigation, the Infant Health and Development Program, early intervention with low-birth weight children revealed that both home visitation and an educational child curriculum improved the children’s IQ, decreased behavior problems, and improved the home environment. The intervention was more effective with mothers with low educational attainment than those with high educational attainment, more effective for African American than White children, and effective for most at-risk children.
Intervention programs have the most positive effects on children’s well-being when they (a) begin as early as possible, (b) provide services to parents as well as to the child, (c) have a low child-teacher ratio, (d) have high parental involvement, and (e) have frequent contacts. In one review of family intervention studies, intervention was more effective when there were eleven or more contacts between the intervener and the family; while eleven sessions is a somewhat arbitrary number, it does indicate that a certain duration of contact is necessary for intervention success.

What does the word "impoverished" (Para. 1) mean ()

A. Improved
B. Enhanced
C. Poor
D. Missing

单项选择题

Passage 6
Taking charge of yourself involves putting to rest some very prevalent myths. At the top of the list is the notion that intelligence is measured by your ability to solve complex problems; to read, write and compute at certain levels; and to resolve abstract equations quickly. This vision of intelligence asserts formal education and bookish excellence as the true measures of self-fulfillment. It encourages a kind of intellectual prejudice that has brought with it some discouraging results. We have come to believe that someone who has more educational merit badges, who is very good at some form of school discipline, is "intelligent"; yet mental hospitals are filled with patients who have all of the properly lettered certificates. A truer indicator of intelligence is an effective, happy life lived each day and each present moment of every day.
If you are happy, if you live each moment for everything it’s worth, then you are an intelligent person. Problem solving is a useful help to your happiness, but if you know that given your inability to resolve a particular concern you can still choose happiness for yourself, or at a minimum refuse to choose unhappiness, then you are intelligent. You are intelligent because you have the ultimate weapon against the big N.B.D. --Nervous Break Down.
"Intelligent" people do not have N.B.D. because they are in charge of themselves; they know how to choose happiness over depression, because they know how to deal with the problems of their lives.
You can begin to think of yourself as truly intelligent on the basis of how you choose to feel in the face of trying circumstances. The life struggles are pretty much the same for each of us. Everyone who is involved with other human beings in any social context has similar difficulties. Disagreements, conflicts and compromises are part of what it means to be a human. Similarly, money, growing old, sickness, deaths, natural disasters and accidents are all events which present problems to virtually all human beings. But some people are able to make it, to avoid immobilizing depression and unhappiness despite such occurrences, while others collapse or have an N.B.D. Those who recognize problems as a human condition and don’t measure happiness by an absence of problems are the most intelligent kind of humans we know; also, the most rare.

It is implied in the passage that holding a university degree()

A. may result in one’s inability to solve complex real-life problems
B. does not indicate one’s ability to write properly worded documents
C. may make one mentally sick and physically weak
D. does not mean that one is highly intelligent

单项选择题

Passage 10
It is a well-known fact that there are constant conflicts among different groups of people, and that people tend to blame their misfortunes on some outside other groups for their misfortunes. What are the causes of group prejudice There seems to be little doubt that one of the principal causes of prejudice is fear: in particular the fear that the interests of our own group are going to be endangered by the actions of another. This is less likely to be the case in a stable, relatively unchanging society in which the members of different social and occupational groups know what to expect of each other, and know what to expect for themselves. In times of rapid social and economic change, however, new occupations and new social roles appear, and people start looking jealously at each other to see whether their own group is being left behind.
Once prejudice develops, it is hard to stop, because there are often social forces at work which actively encourage unfounded attitudes of hostility and fear towards other groups. One such force is education: we all know that children can be taught history in such a way as to perpetuate old hatreds and old prejudices between racial and political groups. Another social influence that has to be reckoned with is the pressure of public opinion. People often think and act differently in groups from the way that they would do as individuals; it takes a considerable effort of will, and often calls for great courage, to stand out against one’s fellows and insist they are wrong.
Why is it that we hear so much more about the failures of relationships between communities than we do about the successes I am afraid it is partly due to the increase in communications which radio, television and the popular press have brought about. In those countries where the media of mass communication are commercial enterprises, they tend to measure success by the size of their audience; and people are more likely to buy a newspaper, for instance, if their attention is caught by something dramatic, something sensational, or something that arouses their anxiety. The popular press flourishes on "scare headlines", and popular orators, especially if they are politicians addressing a relatively unsophisticated audience, know that the best way to arouse such an audience is to frighten them.
Where there is a real or imaginary threat to economic security, this is especially likely to inflame group prejudice. It is important to remember economic factors if we wish to lessen group prejudice, because unless they are dealt with squarely it will be little use simply persuading people not to be prejudiced against other groups whom they see as their rivals, if not their enemies.

What does "they" in the sentence "they tend to measure success by the size of their audience" (Para. 3) refer to()

A. Communications
B. The media of mass communication
C. Commercial enterprises
D. The countries

单项选择题

Passage 5
What our society suffers from most today is the absence of consensus about what it and life in it ought to be, such consensus cannot be gained from society’s present stage, or from fantasies about what it ought to be. For that the present is too close and too diversified, and the future too uncertain, to make believable claims about it. A consensus in the present hence can be achieved only through a shared understanding of the past, as Homer’s epics informed those who lived centuries later what it meant to be Greek, and by what images and ideals they were to live their lives and organize their societies.
Most societies derive consensus from a long history, a language all their own, a common religion, common ancestry. The myths by which they live are based on all of these. But the United States is a country of immigrants, coming from a great variety of nations. Lately, it has been emphasized that an asocial, narcissistic personality has become characteristic of Americans, and that it is this type of personality that makes for the lack of well-being, because it prevents us from achieving consensus that would counteract a tendency to withdraw into private worlds. In this study of narcissism, Christopher Lash says that modern man, "tortured by self-consciousness, turns to new therapies not to free himself of his personal worries but to find meaning and purpose in life, to find something to live for". There is widespread distress because national morale has declined, and we have lost an earlier sense of national vision and purpose.
Contrary to rigid religions or political beliefs, as are found in totalitarian societies, our culture is one of the great individual differences, at least in principle and in theory; but this leads to disunity, even chaos. Americans believe in the value of diversity, but just because our is a society based on individual diversity, it needs consensus about some dominating ideas more than societies based on uniform origin of their citizens. Hence, if we are to have consensus, it must be based on a myth--a vision about a common experience, a conquest that made us Americans, as the myth about the conquest of Troy formed the Greeks. Only a common myth can offer relief from the fear that life is without meaning or purpose. Myths permit us to examine our place in the world by comparing it to a shared idea. Myths are shared fantasies that form the tie that binds the individual to other members of his group. Such myths help to ward off feelings of isolations, guilt, anxiety, and purposelessness--in short, they combat isolation and the breakdown of social standards and values.

The asocial personality of Americans results from()

A. the multiracial constituents of the U.S. society
B. the absence of a common religion and ancestry
C. the want of shared myths they possess in life
D. the obstruction of achieving a general agreement

单项选择题

Passage 4
International airlines have rediscovered the business traveler. This does not necessarily mean that airlines ever abandoned their business travelers, but many airlines were accused of concentrating too heavily in the recent past on attracting passengers by volume, often at the expense of the business traveler.
Operating a major airline is essentially a matter of finding the right mix of passengers. The airlines need to fill up the back end of their wide-bodied jets with low fare passengers without forgetting that the front end should be filled with people who pay substantially more for their tickets.
It is no coincidence that the recent two major airlines bankruptcies were among the companies specializing in cheap flights. But low fares require consistently full aircraft to make flights economically viable; and in the recent recession the volume of traffic has reduced. Equally the large number of airliners jostling for the available passengers has created a huge excess of capacity; the net result of excess capacity and cut-throat competition driving down fares has been to push some airlines into collapse and leave many others hovering on the brink.
Against this grim background, it is no surprise that airlines are turning increasingly towards the business travelers to improve their rates of return; they have invested much time and effort to establish exactly the executive’s demands for sitting apart from the tourists.
High on the list of priorities is punctuality. In-flight service is another area where the airlines are jostling for the executive’s attention. The free drinks and headsets and better food are other parts of the attention. First-class passengers are now offered sleeperette seats.
The airlines are also trying to improve things on the ground. Executive lounges are intended to make the inevitable waiting between flights a little more bearable. Luggage handling is being improved. Regrettably, there is little that the airlines can do to speed up the boring immigration and Customs process, which upsets and frustrates passengers of all classes.
Although it is the airlines’ intention to attract executive passengers from their rivals, the airlines themselves would do nothing to change one bad habit of this kind of traveler--the habit of booking a flight and then failing to turn up. The practice is particularly widespread in Europe, where businessmen frequently book return journeys home on one of several flights. As a result, the airlines throw away empty seats, which cannot be resold. Some airlines have attempted to prevent the practice by offering discounts to passengers who travel on their booked flight. But this inevitably means that the structure of air fares, already highly complex, becomes even more baffling.

What does the phrase "leave many others hovering on the brink" (Para. 3) mean()

A. Make many other airlines prosperous
B. Force many other airlines to revive
C. Make many other airlines close to bankruptcy
D. Lead many other airlines to bankruptcy

单项选择题

Passage 8
Researchers are increasingly interested in manipulating the environment early in children’s lives when they are perceived to be at risk for impoverished intelligence. In a program conducted in North Carolina by Craig Ramey and his associates, pregnant women with IQs averaging 80 were recruited for a study. After their babies were born,half of the infants were cared for during the day at an educational daycare center and half were reared at home by their mothers; both groups of children were given medical care and dietary supplements, and their families were given social services if they requested them.
At the age of 3, the children who attended the educational daycare center had significantly higher IQs than did the home-reared children. This difference was likely due to the decline in the IQs of the home-reared children during the period from 12 to 18 months of age. By the time the children were 5 years old, 39 percent of the home-reared children had IQs below 85 but only 11 percent of the educational day-care children had IQs this low. In the most recent evaluation of this project, positive effects of educational daycare on the intellectual development and academic achievement of the children were evident at age 12.
Some parents, such as those in Ramey’s study, have difficulty providing an adequate environment for the intellectual needs of their infants. Once these difficulties are a reoccurring part of the family system, changing efforts probably will be more difficult and costly; early intervention in the family system is directed at changing parental adaptive and responsive functioning so that permanent negative effects are minimized.
In another investigation, the Infant Health and Development Program, early intervention with low-birth weight children revealed that both home visitation and an educational child curriculum improved the children’s IQ, decreased behavior problems, and improved the home environment. The intervention was more effective with mothers with low educational attainment than those with high educational attainment, more effective for African American than White children, and effective for most at-risk children.
Intervention programs have the most positive effects on children’s well-being when they (a) begin as early as possible, (b) provide services to parents as well as to the child, (c) have a low child-teacher ratio, (d) have high parental involvement, and (e) have frequent contacts. In one review of family intervention studies, intervention was more effective when there were eleven or more contacts between the intervener and the family; while eleven sessions is a somewhat arbitrary number, it does indicate that a certain duration of contact is necessary for intervention success.

It is implied in the passage that the babies at the daycare center()

A. were given more medical care than those at home
B. were born of mothers with higher IQs
C. were reared under a more favorable environment
D. were more closely attended to by their mothers

单项选择题

Passage 3
In spite of rising concern in the Northeast and Canada, Administration spokesmen have repeatedly insisted that nothing could really be done about acid rain and the industry-produced sulfur emissions until all the scientific facts were in. Suddenly last week, however, facts came raining down, in effect making further scientific debate on what mainly causes the problem all but irrelevant.
What brought about the downpour was a study commissioned by Presidential Science Adviser. The spokesmen plainly called for remedial action even if some technical questions about acid rain were still unanswered. "If we take the conservative point of view that we must wait until the scientific knowledge is definitive," said the spokesman, "The accumulated deposition and damaged environment may reach the point of ’irreversibility.’"
When it rains, it pours. Next came a study from the National Research Council. Its definitive conclusion: reducing emissions of sulfur dioxide from coal-burning power plants and factories, such as these in the Midwest, would in fact significantly reduce the acidity in rain, snow and other precipitation that is widely believed to be worsening the life from fresh-water lakes and forests in the Northeast and Canada. The spokesman did not recommend any specific action.
A pair of remedial measures are already taken before Congress. A Senate committee recently approved a bill that would require reduction over the next decade of sulfur-dioxide emissions by 10 million tons in the States bordering on the east of the Mississippi. A tougher measure was introduced in the House ordering the 50 largest sulfur polluters in the U.S. to cut emissions substantially. To ease the Eastern coal mining industry, which fears a switch to low-sulfur Western coal, the bill requires the installation of expensive "scrubbers", devices for removing sulfur from the smoke, rather than an order that forbids high-sulfur fuel. Still, the legislation is being vigorously opposed by the coal industry and utilities, especially in the Mid-west, where heavy industries are battling to survive. In a survey also released last week, the Edison Electric Institute, an industry group, gravely predicted that electricity rates could rise as much as 50% if the emission-control legislation passed.
Government studies dispute these figures, but Congress has been suspended on acid-rain measures. Now, as a result of the academy study, supporters of the bills are more optimistic. Nevertheless, a major political battle is shaping up.

The two studies mentioned in the text clearly stated that()

A. there is no time to lose in pollution control
B. the scientific explanation of acid rain remains unclear
C. environmental restoration defies scientific endeavors
D. factories should be banned from burning coal

单项选择题

Passage 9
One of the most pressing challenges that the United States--and indeed, the world--will face in the next few decades is how to alleviate the growing stress that human activities are placing on the environment. The consequences are just too great to ignore. Wildlife habitats are being degraded or disappearing altogether as new developments take up more land. Plant and animal species are becoming extinct at a greater rate now than at any time in Earth’s history. As many as 30 percent of the world’s fish stocks are overexploited. And the list goes on.
Yet, there is reason to have hope for the future. Advances in computing power and molecular biology are among the tremendous increases in scientific capability that are helping researchers gain a better understanding of these problems. Recent developments in science and technology could provide the basis for some major, and timely actions that would improve our understanding of how human activities affect the environment.
One priority for research is improving hydrological forecasting. It has been estimated that the world’s water use could triple in the next two decades. Already, widespread water shortages have occurred in parts of China, India, North Africa, and the Arabian Peninsula. The need for water also is taking its toll on freshwater ecosystems in the United States. Only 2 percent of the nation’s streams are considered in good condition, and close to 40 percent of native fish species are rare to extinct. Using a variety of new remote sensing tools, scientists can learn more about how precipitation affects water levels, how surface water is generated and transported, and how changes in the landscape affect water supplies.
To prevent outbreaks of infectious diseases in plants, animals, and humans, more study is needed on how pathogens, parasites, and disease-carrying species--as well as humans and other species they infect--are affected by changes in the environment. The overuse of antibiotics both in humans and in farm animals has contributed to the growth of antibiotic-resistant microorganisms. Researchers can take advantage of new technologies in genetics and computing to better monitor and predict the effects that environmental changes might have on disease outbreaks.
Humans have made alterations to Earth’s surface--such as tropical deforestation, reduction of surface and ground water, and massive development--so dramatic that they approach the levels of transformation that occurred during glacial periods. Such alterations cause changes in local and regional climate, and will determine the future of agriculture. Recent advances in data collection and analysis should be used to document and better understand the causes and consequences of changes in land cover and use.

Which of the following does the author NOT suggest as an important area for research()

A. How precipitation affects water levels
B. How to prevent outbreaks of infectious diseases
C. How urban development affects the environment
D. How the industrial pollution impacts the environment

单项选择题

Passage 10
It is a well-known fact that there are constant conflicts among different groups of people, and that people tend to blame their misfortunes on some outside other groups for their misfortunes. What are the causes of group prejudice There seems to be little doubt that one of the principal causes of prejudice is fear: in particular the fear that the interests of our own group are going to be endangered by the actions of another. This is less likely to be the case in a stable, relatively unchanging society in which the members of different social and occupational groups know what to expect of each other, and know what to expect for themselves. In times of rapid social and economic change, however, new occupations and new social roles appear, and people start looking jealously at each other to see whether their own group is being left behind.
Once prejudice develops, it is hard to stop, because there are often social forces at work which actively encourage unfounded attitudes of hostility and fear towards other groups. One such force is education: we all know that children can be taught history in such a way as to perpetuate old hatreds and old prejudices between racial and political groups. Another social influence that has to be reckoned with is the pressure of public opinion. People often think and act differently in groups from the way that they would do as individuals; it takes a considerable effort of will, and often calls for great courage, to stand out against one’s fellows and insist they are wrong.
Why is it that we hear so much more about the failures of relationships between communities than we do about the successes I am afraid it is partly due to the increase in communications which radio, television and the popular press have brought about. In those countries where the media of mass communication are commercial enterprises, they tend to measure success by the size of their audience; and people are more likely to buy a newspaper, for instance, if their attention is caught by something dramatic, something sensational, or something that arouses their anxiety. The popular press flourishes on "scare headlines", and popular orators, especially if they are politicians addressing a relatively unsophisticated audience, know that the best way to arouse such an audience is to frighten them.
Where there is a real or imaginary threat to economic security, this is especially likely to inflame group prejudice. It is important to remember economic factors if we wish to lessen group prejudice, because unless they are dealt with squarely it will be little use simply persuading people not to be prejudiced against other groups whom they see as their rivals, if not their enemies.

According to the author, what role do mass media play in the relationships between communities ()

A. They draw the audience’s attention to prejudice
B. They cause further social prejudice among audience
C. They criticize prejudices between racial and political groups
D. They have done something to lessen prejudice between groups

单项选择题

Passage 6
Taking charge of yourself involves putting to rest some very prevalent myths. At the top of the list is the notion that intelligence is measured by your ability to solve complex problems; to read, write and compute at certain levels; and to resolve abstract equations quickly. This vision of intelligence asserts formal education and bookish excellence as the true measures of self-fulfillment. It encourages a kind of intellectual prejudice that has brought with it some discouraging results. We have come to believe that someone who has more educational merit badges, who is very good at some form of school discipline, is "intelligent"; yet mental hospitals are filled with patients who have all of the properly lettered certificates. A truer indicator of intelligence is an effective, happy life lived each day and each present moment of every day.
If you are happy, if you live each moment for everything it’s worth, then you are an intelligent person. Problem solving is a useful help to your happiness, but if you know that given your inability to resolve a particular concern you can still choose happiness for yourself, or at a minimum refuse to choose unhappiness, then you are intelligent. You are intelligent because you have the ultimate weapon against the big N.B.D. --Nervous Break Down.
"Intelligent" people do not have N.B.D. because they are in charge of themselves; they know how to choose happiness over depression, because they know how to deal with the problems of their lives.
You can begin to think of yourself as truly intelligent on the basis of how you choose to feel in the face of trying circumstances. The life struggles are pretty much the same for each of us. Everyone who is involved with other human beings in any social context has similar difficulties. Disagreements, conflicts and compromises are part of what it means to be a human. Similarly, money, growing old, sickness, deaths, natural disasters and accidents are all events which present problems to virtually all human beings. But some people are able to make it, to avoid immobilizing depression and unhappiness despite such occurrences, while others collapse or have an N.B.D. Those who recognize problems as a human condition and don’t measure happiness by an absence of problems are the most intelligent kind of humans we know; also, the most rare.

What does the word "trying" (Para. 4) most probably mean()

A. Troublesome
B. Encouraging
C. Agreeable
D. Reasonable

单项选择题

Passage 2
Is it possible that the ideas we have today about ownership and property rights have been so universal in the human mind that it is truly as if they had sprung from the mind of God By no means. The idea of owning and property emerged in the mists of unrecorded history. The ancient Jews, for one, had a very different outlook on property and ownership, viewing it as something much more temporary and tentative than we do.
The ideas we have in America about the private ownership of productive property as a natural and universal right of mankind, perhaps of divine origin, are by no means universal and must be viewed as an invention of man rather than an order of God. Of course, we are completely trained to accept the idea of ownership of the earth and its products, raw and transformed. It seems not at all strange; in fact, it is quite difficult to imagine a society without such arrangements. If someone, some individual, didn’t own that plot of land, that house, that factory, that machine, that tower of wheat, how would we function What would the rules be Whom would we buy from and how would we sell
It is important to acknowledge a significant difference between achieving ownership simply by taking or claiming property and owning what we tend to call the "fruit of labor". If I, alone or together with my family, work on the land and raise crops, or if I make something useful out of natural material, it seems reasonable and fair to claim that the crops or the objects belong to me or my family, are my property, at least in the sense that I have first claim on them. Hardly anyone would dispute that. In fact, some of the early radical workingmen’s movements made (an ownership) claim on those very grounds. As industrial organization became more complex, however, such issues became vastly more intricate. It must be clear that in modern society the social heritage of knowledge and technology and the social organization of manufacture and exchange account for far more of the productivity of industry and the value of what is produced than can be accounted for by the labor of any number of individuals. Hardly any person can now point and say, "That--that right there--is the fruit of my labor." We can say, as a society, as a nation--as a world, really--that what is produced is the fruit of our labor, the product of the whole society as a collectivity.
We have to recognize that the right of private individual ownership of property is man-made and constantly dependent on the extent to which those without property believe that the owner can make his claim stick.

We learn by inference that private property may()

A. be viewed as a design of inventive powers
B. be treated as a discovery of our ancestors
C. serve as the universal rule of transactions
D. function as the basis of market economy

单项选择题

Passage 7
No reference book, perhaps no book of any kind except the Bible, is so widely used as "the dictionary". Even houses that have few books or none at all possess at least one dictionary; most business offices have dictionaries, and most typists keep a copy on their desks; at one time or another most girls and boys are required by their teachers to obtain and use a dictionary.
Admittedly, the dictionary is often used merely to determine the correct spelling of words, or to find out the accepted pronunciation, and such a use is perhaps not the most important from an intellectual point of view. Dictionaries may, however, have social importance, for it is often a matter of some concern to the person using the dictionary for such purpose that he should not suggest to others, by misspelling a word in a letter, or mispronouncing it in conversation, that he is not "well-bred", and has not been well educated.
Yet, despite this familiarity with the dictionary, the average person is likely to have many wrong ideas about it, and little idea of how to use it profitably, or interpret it rightly. For example, it is often believed that the mere presence of a word in a dictionary is evidence that it is acceptable in good writing. Though most dictionaries have a system of marking words as obsolete, or in use only as slang, many people, more especially if their use of a particular word has been challenged, are likely to conclude, if they find it in a dictionary, that it is accepted as being used by writers of established reputation. This would certainly have been true of dictionaries a hundred years or so ago. For a long time after they were first firmly established in the eighteenth century, their aim was to include only what was used by the best writers, and all else was suppressed, and the compiler frequently claimed that this dictionary contained "low" words. Apparently this aspect of the dictionary achieved such importance in the mind of the average person that most people today are unaware of the great change that has taken place in the compilation of present-day dictionaries.
Similarly, the ordinary man invariably supposes that one dictionary is as good and authoritative as another, and, moreover, believes that "the dictionary" has absolute authority, and quotes it to clinch arguments. Although this is an advantage, in that the dictionary presents a definition the basic meaning of which can’t be altered by the speaker, yet it could be accepted only if all dictionaries agreed on the particular point in question. But ultimately the authority of the dictionary rests only on the authority of the man who compiled it, and, however careful he may be, a dictionary-maker is fallible: reputable dictionaries may disagree in their judgments, and indeed different sections of the same dictionary may differ.

By "the great change" in present-day dictionaries, the author implies that()

A. dictionaries seem to have many wrong ideas in them for the average persons
B. many average persons do not know how to use the dictionaries profitably
C. words appearing in a present-day dictionary may not be acceptable in good writing
D. dictionaries have different systems of marking the words they contain

单项选择题

Passage 5
What our society suffers from most today is the absence of consensus about what it and life in it ought to be, such consensus cannot be gained from society’s present stage, or from fantasies about what it ought to be. For that the present is too close and too diversified, and the future too uncertain, to make believable claims about it. A consensus in the present hence can be achieved only through a shared understanding of the past, as Homer’s epics informed those who lived centuries later what it meant to be Greek, and by what images and ideals they were to live their lives and organize their societies.
Most societies derive consensus from a long history, a language all their own, a common religion, common ancestry. The myths by which they live are based on all of these. But the United States is a country of immigrants, coming from a great variety of nations. Lately, it has been emphasized that an asocial, narcissistic personality has become characteristic of Americans, and that it is this type of personality that makes for the lack of well-being, because it prevents us from achieving consensus that would counteract a tendency to withdraw into private worlds. In this study of narcissism, Christopher Lash says that modern man, "tortured by self-consciousness, turns to new therapies not to free himself of his personal worries but to find meaning and purpose in life, to find something to live for". There is widespread distress because national morale has declined, and we have lost an earlier sense of national vision and purpose.
Contrary to rigid religions or political beliefs, as are found in totalitarian societies, our culture is one of the great individual differences, at least in principle and in theory; but this leads to disunity, even chaos. Americans believe in the value of diversity, but just because our is a society based on individual diversity, it needs consensus about some dominating ideas more than societies based on uniform origin of their citizens. Hence, if we are to have consensus, it must be based on a myth--a vision about a common experience, a conquest that made us Americans, as the myth about the conquest of Troy formed the Greeks. Only a common myth can offer relief from the fear that life is without meaning or purpose. Myths permit us to examine our place in the world by comparing it to a shared idea. Myths are shared fantasies that form the tie that binds the individual to other members of his group. Such myths help to ward off feelings of isolations, guilt, anxiety, and purposelessness--in short, they combat isolation and the breakdown of social standards and values.

It can be inferred from Paragraph 2 that Christopher Lash is most probably()

A. an earnest nationalist
B. an advanced psychologist
C. a radical reformer
D. a social historian

单项选择题

Passage 3
In spite of rising concern in the Northeast and Canada, Administration spokesmen have repeatedly insisted that nothing could really be done about acid rain and the industry-produced sulfur emissions until all the scientific facts were in. Suddenly last week, however, facts came raining down, in effect making further scientific debate on what mainly causes the problem all but irrelevant.
What brought about the downpour was a study commissioned by Presidential Science Adviser. The spokesmen plainly called for remedial action even if some technical questions about acid rain were still unanswered. "If we take the conservative point of view that we must wait until the scientific knowledge is definitive," said the spokesman, "The accumulated deposition and damaged environment may reach the point of ’irreversibility.’"
When it rains, it pours. Next came a study from the National Research Council. Its definitive conclusion: reducing emissions of sulfur dioxide from coal-burning power plants and factories, such as these in the Midwest, would in fact significantly reduce the acidity in rain, snow and other precipitation that is widely believed to be worsening the life from fresh-water lakes and forests in the Northeast and Canada. The spokesman did not recommend any specific action.
A pair of remedial measures are already taken before Congress. A Senate committee recently approved a bill that would require reduction over the next decade of sulfur-dioxide emissions by 10 million tons in the States bordering on the east of the Mississippi. A tougher measure was introduced in the House ordering the 50 largest sulfur polluters in the U.S. to cut emissions substantially. To ease the Eastern coal mining industry, which fears a switch to low-sulfur Western coal, the bill requires the installation of expensive "scrubbers", devices for removing sulfur from the smoke, rather than an order that forbids high-sulfur fuel. Still, the legislation is being vigorously opposed by the coal industry and utilities, especially in the Mid-west, where heavy industries are battling to survive. In a survey also released last week, the Edison Electric Institute, an industry group, gravely predicted that electricity rates could rise as much as 50% if the emission-control legislation passed.
Government studies dispute these figures, but Congress has been suspended on acid-rain measures. Now, as a result of the academy study, supporters of the bills are more optimistic. Nevertheless, a major political battle is shaping up.

From the description of the efforts in the House, we can see that()

A. the members of the House really speak for the general public
B. the Congressmen are tough to the sulfur polluters in the U.S
C. the statesmen try to please the public without enraging the bosses
D. the politicians worry about the effect of emission-control legislation

单项选择题

Passage 6
Taking charge of yourself involves putting to rest some very prevalent myths. At the top of the list is the notion that intelligence is measured by your ability to solve complex problems; to read, write and compute at certain levels; and to resolve abstract equations quickly. This vision of intelligence asserts formal education and bookish excellence as the true measures of self-fulfillment. It encourages a kind of intellectual prejudice that has brought with it some discouraging results. We have come to believe that someone who has more educational merit badges, who is very good at some form of school discipline, is "intelligent"; yet mental hospitals are filled with patients who have all of the properly lettered certificates. A truer indicator of intelligence is an effective, happy life lived each day and each present moment of every day.
If you are happy, if you live each moment for everything it’s worth, then you are an intelligent person. Problem solving is a useful help to your happiness, but if you know that given your inability to resolve a particular concern you can still choose happiness for yourself, or at a minimum refuse to choose unhappiness, then you are intelligent. You are intelligent because you have the ultimate weapon against the big N.B.D. --Nervous Break Down.
"Intelligent" people do not have N.B.D. because they are in charge of themselves; they know how to choose happiness over depression, because they know how to deal with the problems of their lives.
You can begin to think of yourself as truly intelligent on the basis of how you choose to feel in the face of trying circumstances. The life struggles are pretty much the same for each of us. Everyone who is involved with other human beings in any social context has similar difficulties. Disagreements, conflicts and compromises are part of what it means to be a human. Similarly, money, growing old, sickness, deaths, natural disasters and accidents are all events which present problems to virtually all human beings. But some people are able to make it, to avoid immobilizing depression and unhappiness despite such occurrences, while others collapse or have an N.B.D. Those who recognize problems as a human condition and don’t measure happiness by an absence of problems are the most intelligent kind of humans we know; also, the most rare.

In the last paragraph, the author tells us that()

A. difficulties are but part of everyone’s life
B. depression and unhappiness are unavoidable in life
C. everybody should learn to avoid trying circumstances
D. good feelings can contribute to eventual academic excellence

单项选择题

Passage 7
No reference book, perhaps no book of any kind except the Bible, is so widely used as "the dictionary". Even houses that have few books or none at all possess at least one dictionary; most business offices have dictionaries, and most typists keep a copy on their desks; at one time or another most girls and boys are required by their teachers to obtain and use a dictionary.
Admittedly, the dictionary is often used merely to determine the correct spelling of words, or to find out the accepted pronunciation, and such a use is perhaps not the most important from an intellectual point of view. Dictionaries may, however, have social importance, for it is often a matter of some concern to the person using the dictionary for such purpose that he should not suggest to others, by misspelling a word in a letter, or mispronouncing it in conversation, that he is not "well-bred", and has not been well educated.
Yet, despite this familiarity with the dictionary, the average person is likely to have many wrong ideas about it, and little idea of how to use it profitably, or interpret it rightly. For example, it is often believed that the mere presence of a word in a dictionary is evidence that it is acceptable in good writing. Though most dictionaries have a system of marking words as obsolete, or in use only as slang, many people, more especially if their use of a particular word has been challenged, are likely to conclude, if they find it in a dictionary, that it is accepted as being used by writers of established reputation. This would certainly have been true of dictionaries a hundred years or so ago. For a long time after they were first firmly established in the eighteenth century, their aim was to include only what was used by the best writers, and all else was suppressed, and the compiler frequently claimed that this dictionary contained "low" words. Apparently this aspect of the dictionary achieved such importance in the mind of the average person that most people today are unaware of the great change that has taken place in the compilation of present-day dictionaries.
Similarly, the ordinary man invariably supposes that one dictionary is as good and authoritative as another, and, moreover, believes that "the dictionary" has absolute authority, and quotes it to clinch arguments. Although this is an advantage, in that the dictionary presents a definition the basic meaning of which can’t be altered by the speaker, yet it could be accepted only if all dictionaries agreed on the particular point in question. But ultimately the authority of the dictionary rests only on the authority of the man who compiled it, and, however careful he may be, a dictionary-maker is fallible: reputable dictionaries may disagree in their judgments, and indeed different sections of the same dictionary may differ.

Many people do not realize that()

A. it is not easy for dictionary-makers to compile a dictionary
B. dictionaries have achieved such importance today
C. a dictionary today may contain "low" words
D. words in a dictionary may be out of date or used only as slang

单项选择题

Passage 4
International airlines have rediscovered the business traveler. This does not necessarily mean that airlines ever abandoned their business travelers, but many airlines were accused of concentrating too heavily in the recent past on attracting passengers by volume, often at the expense of the business traveler.
Operating a major airline is essentially a matter of finding the right mix of passengers. The airlines need to fill up the back end of their wide-bodied jets with low fare passengers without forgetting that the front end should be filled with people who pay substantially more for their tickets.
It is no coincidence that the recent two major airlines bankruptcies were among the companies specializing in cheap flights. But low fares require consistently full aircraft to make flights economically viable; and in the recent recession the volume of traffic has reduced. Equally the large number of airliners jostling for the available passengers has created a huge excess of capacity; the net result of excess capacity and cut-throat competition driving down fares has been to push some airlines into collapse and leave many others hovering on the brink.
Against this grim background, it is no surprise that airlines are turning increasingly towards the business travelers to improve their rates of return; they have invested much time and effort to establish exactly the executive’s demands for sitting apart from the tourists.
High on the list of priorities is punctuality. In-flight service is another area where the airlines are jostling for the executive’s attention. The free drinks and headsets and better food are other parts of the attention. First-class passengers are now offered sleeperette seats.
The airlines are also trying to improve things on the ground. Executive lounges are intended to make the inevitable waiting between flights a little more bearable. Luggage handling is being improved. Regrettably, there is little that the airlines can do to speed up the boring immigration and Customs process, which upsets and frustrates passengers of all classes.
Although it is the airlines’ intention to attract executive passengers from their rivals, the airlines themselves would do nothing to change one bad habit of this kind of traveler--the habit of booking a flight and then failing to turn up. The practice is particularly widespread in Europe, where businessmen frequently book return journeys home on one of several flights. As a result, the airlines throw away empty seats, which cannot be resold. Some airlines have attempted to prevent the practice by offering discounts to passengers who travel on their booked flight. But this inevitably means that the structure of air fares, already highly complex, becomes even more baffling.

To attract executive passengers, the airlines have now begun to concentrate on()

A. ensuring that the services offered to executive passengers are indeed superior
B. satisfying the demands of all executive passengers
C. proving first-class service on all the flights
D. offering discounts to those who book their return flights

单项选择题

Passage 9
One of the most pressing challenges that the United States--and indeed, the world--will face in the next few decades is how to alleviate the growing stress that human activities are placing on the environment. The consequences are just too great to ignore. Wildlife habitats are being degraded or disappearing altogether as new developments take up more land. Plant and animal species are becoming extinct at a greater rate now than at any time in Earth’s history. As many as 30 percent of the world’s fish stocks are overexploited. And the list goes on.
Yet, there is reason to have hope for the future. Advances in computing power and molecular biology are among the tremendous increases in scientific capability that are helping researchers gain a better understanding of these problems. Recent developments in science and technology could provide the basis for some major, and timely actions that would improve our understanding of how human activities affect the environment.
One priority for research is improving hydrological forecasting. It has been estimated that the world’s water use could triple in the next two decades. Already, widespread water shortages have occurred in parts of China, India, North Africa, and the Arabian Peninsula. The need for water also is taking its toll on freshwater ecosystems in the United States. Only 2 percent of the nation’s streams are considered in good condition, and close to 40 percent of native fish species are rare to extinct. Using a variety of new remote sensing tools, scientists can learn more about how precipitation affects water levels, how surface water is generated and transported, and how changes in the landscape affect water supplies.
To prevent outbreaks of infectious diseases in plants, animals, and humans, more study is needed on how pathogens, parasites, and disease-carrying species--as well as humans and other species they infect--are affected by changes in the environment. The overuse of antibiotics both in humans and in farm animals has contributed to the growth of antibiotic-resistant microorganisms. Researchers can take advantage of new technologies in genetics and computing to better monitor and predict the effects that environmental changes might have on disease outbreaks.
Humans have made alterations to Earth’s surface--such as tropical deforestation, reduction of surface and ground water, and massive development--so dramatic that they approach the levels of transformation that occurred during glacial periods. Such alterations cause changes in local and regional climate, and will determine the future of agriculture. Recent advances in data collection and analysis should be used to document and better understand the causes and consequences of changes in land cover and use.

The last paragraph implies that()

A. local and regional climates have not fluctuated so much since the glacial periods
B. the future of agriculture depends on how land usages affect climate
C. until recently, very little information was documented about changes and consequences of land usage
D. current human transformations of the land surface is of almost unprecedented scale

单项选择题

Passage 8
Researchers are increasingly interested in manipulating the environment early in children’s lives when they are perceived to be at risk for impoverished intelligence. In a program conducted in North Carolina by Craig Ramey and his associates, pregnant women with IQs averaging 80 were recruited for a study. After their babies were born,half of the infants were cared for during the day at an educational daycare center and half were reared at home by their mothers; both groups of children were given medical care and dietary supplements, and their families were given social services if they requested them.
At the age of 3, the children who attended the educational daycare center had significantly higher IQs than did the home-reared children. This difference was likely due to the decline in the IQs of the home-reared children during the period from 12 to 18 months of age. By the time the children were 5 years old, 39 percent of the home-reared children had IQs below 85 but only 11 percent of the educational day-care children had IQs this low. In the most recent evaluation of this project, positive effects of educational daycare on the intellectual development and academic achievement of the children were evident at age 12.
Some parents, such as those in Ramey’s study, have difficulty providing an adequate environment for the intellectual needs of their infants. Once these difficulties are a reoccurring part of the family system, changing efforts probably will be more difficult and costly; early intervention in the family system is directed at changing parental adaptive and responsive functioning so that permanent negative effects are minimized.
In another investigation, the Infant Health and Development Program, early intervention with low-birth weight children revealed that both home visitation and an educational child curriculum improved the children’s IQ, decreased behavior problems, and improved the home environment. The intervention was more effective with mothers with low educational attainment than those with high educational attainment, more effective for African American than White children, and effective for most at-risk children.
Intervention programs have the most positive effects on children’s well-being when they (a) begin as early as possible, (b) provide services to parents as well as to the child, (c) have a low child-teacher ratio, (d) have high parental involvement, and (e) have frequent contacts. In one review of family intervention studies, intervention was more effective when there were eleven or more contacts between the intervener and the family; while eleven sessions is a somewhat arbitrary number, it does indicate that a certain duration of contact is necessary for intervention success.

The finding that children reared at home had low IQs at age 12 indicates()

A. parents fail to provide an adequate environment for their intelligence growth
B. educational daycare centers are the best place for children to grow up in
C. intellectual development and academic achievement of children are closely related
D. the age of 12 is a critical point in time for intellectual development in children

单项选择题

Passage 2
Is it possible that the ideas we have today about ownership and property rights have been so universal in the human mind that it is truly as if they had sprung from the mind of God By no means. The idea of owning and property emerged in the mists of unrecorded history. The ancient Jews, for one, had a very different outlook on property and ownership, viewing it as something much more temporary and tentative than we do.
The ideas we have in America about the private ownership of productive property as a natural and universal right of mankind, perhaps of divine origin, are by no means universal and must be viewed as an invention of man rather than an order of God. Of course, we are completely trained to accept the idea of ownership of the earth and its products, raw and transformed. It seems not at all strange; in fact, it is quite difficult to imagine a society without such arrangements. If someone, some individual, didn’t own that plot of land, that house, that factory, that machine, that tower of wheat, how would we function What would the rules be Whom would we buy from and how would we sell
It is important to acknowledge a significant difference between achieving ownership simply by taking or claiming property and owning what we tend to call the "fruit of labor". If I, alone or together with my family, work on the land and raise crops, or if I make something useful out of natural material, it seems reasonable and fair to claim that the crops or the objects belong to me or my family, are my property, at least in the sense that I have first claim on them. Hardly anyone would dispute that. In fact, some of the early radical workingmen’s movements made (an ownership) claim on those very grounds. As industrial organization became more complex, however, such issues became vastly more intricate. It must be clear that in modern society the social heritage of knowledge and technology and the social organization of manufacture and exchange account for far more of the productivity of industry and the value of what is produced than can be accounted for by the labor of any number of individuals. Hardly any person can now point and say, "That--that right there--is the fruit of my labor." We can say, as a society, as a nation--as a world, really--that what is produced is the fruit of our labor, the product of the whole society as a collectivity.
We have to recognize that the right of private individual ownership of property is man-made and constantly dependent on the extent to which those without property believe that the owner can make his claim stick.

One deserves to claim on some product only when()

A. his labor accounts for the product and its value
B. he has the priority to lay claim on the product
C. his labor is widely recognized and respected
D. he has the grounds for making claims first

单项选择题

Passage 10
It is a well-known fact that there are constant conflicts among different groups of people, and that people tend to blame their misfortunes on some outside other groups for their misfortunes. What are the causes of group prejudice There seems to be little doubt that one of the principal causes of prejudice is fear: in particular the fear that the interests of our own group are going to be endangered by the actions of another. This is less likely to be the case in a stable, relatively unchanging society in which the members of different social and occupational groups know what to expect of each other, and know what to expect for themselves. In times of rapid social and economic change, however, new occupations and new social roles appear, and people start looking jealously at each other to see whether their own group is being left behind.
Once prejudice develops, it is hard to stop, because there are often social forces at work which actively encourage unfounded attitudes of hostility and fear towards other groups. One such force is education: we all know that children can be taught history in such a way as to perpetuate old hatreds and old prejudices between racial and political groups. Another social influence that has to be reckoned with is the pressure of public opinion. People often think and act differently in groups from the way that they would do as individuals; it takes a considerable effort of will, and often calls for great courage, to stand out against one’s fellows and insist they are wrong.
Why is it that we hear so much more about the failures of relationships between communities than we do about the successes I am afraid it is partly due to the increase in communications which radio, television and the popular press have brought about. In those countries where the media of mass communication are commercial enterprises, they tend to measure success by the size of their audience; and people are more likely to buy a newspaper, for instance, if their attention is caught by something dramatic, something sensational, or something that arouses their anxiety. The popular press flourishes on "scare headlines", and popular orators, especially if they are politicians addressing a relatively unsophisticated audience, know that the best way to arouse such an audience is to frighten them.
Where there is a real or imaginary threat to economic security, this is especially likely to inflame group prejudice. It is important to remember economic factors if we wish to lessen group prejudice, because unless they are dealt with squarely it will be little use simply persuading people not to be prejudiced against other groups whom they see as their rivals, if not their enemies.

The author stresses in the passage that if prejudice between groups is to be reduced,()

A. efforts should be made to persuade people not to be prejudiced against each other
B. education should be carried out to enhance the mutual understanding between racial and political groups
C. economic security should be maintained so that there will no fear that the interests of one group are going to be endangered by the actions of another
D. public opinion should be directed to the elimination of old hatreds and old prejudices between racial and political groups

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Passage 5
What our society suffers from most today is the absence of consensus about what it and life in it ought to be, such consensus cannot be gained from society’s present stage, or from fantasies about what it ought to be. For that the present is too close and too diversified, and the future too uncertain, to make believable claims about it. A consensus in the present hence can be achieved only through a shared understanding of the past, as Homer’s epics informed those who lived centuries later what it meant to be Greek, and by what images and ideals they were to live their lives and organize their societies.
Most societies derive consensus from a long history, a language all their own, a common religion, common ancestry. The myths by which they live are based on all of these. But the United States is a country of immigrants, coming from a great variety of nations. Lately, it has been emphasized that an asocial, narcissistic personality has become characteristic of Americans, and that it is this type of personality that makes for the lack of well-being, because it prevents us from achieving consensus that would counteract a tendency to withdraw into private worlds. In this study of narcissism, Christopher Lash says that modern man, "tortured by self-consciousness, turns to new therapies not to free himself of his personal worries but to find meaning and purpose in life, to find something to live for". There is widespread distress because national morale has declined, and we have lost an earlier sense of national vision and purpose.
Contrary to rigid religions or political beliefs, as are found in totalitarian societies, our culture is one of the great individual differences, at least in principle and in theory; but this leads to disunity, even chaos. Americans believe in the value of diversity, but just because our is a society based on individual diversity, it needs consensus about some dominating ideas more than societies based on uniform origin of their citizens. Hence, if we are to have consensus, it must be based on a myth--a vision about a common experience, a conquest that made us Americans, as the myth about the conquest of Troy formed the Greeks. Only a common myth can offer relief from the fear that life is without meaning or purpose. Myths permit us to examine our place in the world by comparing it to a shared idea. Myths are shared fantasies that form the tie that binds the individual to other members of his group. Such myths help to ward off feelings of isolations, guilt, anxiety, and purposelessness--in short, they combat isolation and the breakdown of social standards and values.

The author concludes that only shared myths can help Americans()

A. to bring about the uniformity of their culture
B. to diminish their great individual differences
C. to avoid the sense of being isolated and anxious
D. to regain the feelings of social values and morale

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Passage 3
In spite of rising concern in the Northeast and Canada, Administration spokesmen have repeatedly insisted that nothing could really be done about acid rain and the industry-produced sulfur emissions until all the scientific facts were in. Suddenly last week, however, facts came raining down, in effect making further scientific debate on what mainly causes the problem all but irrelevant.
What brought about the downpour was a study commissioned by Presidential Science Adviser. The spokesmen plainly called for remedial action even if some technical questions about acid rain were still unanswered. "If we take the conservative point of view that we must wait until the scientific knowledge is definitive," said the spokesman, "The accumulated deposition and damaged environment may reach the point of ’irreversibility.’"
When it rains, it pours. Next came a study from the National Research Council. Its definitive conclusion: reducing emissions of sulfur dioxide from coal-burning power plants and factories, such as these in the Midwest, would in fact significantly reduce the acidity in rain, snow and other precipitation that is widely believed to be worsening the life from fresh-water lakes and forests in the Northeast and Canada. The spokesman did not recommend any specific action.
A pair of remedial measures are already taken before Congress. A Senate committee recently approved a bill that would require reduction over the next decade of sulfur-dioxide emissions by 10 million tons in the States bordering on the east of the Mississippi. A tougher measure was introduced in the House ordering the 50 largest sulfur polluters in the U.S. to cut emissions substantially. To ease the Eastern coal mining industry, which fears a switch to low-sulfur Western coal, the bill requires the installation of expensive "scrubbers", devices for removing sulfur from the smoke, rather than an order that forbids high-sulfur fuel. Still, the legislation is being vigorously opposed by the coal industry and utilities, especially in the Mid-west, where heavy industries are battling to survive. In a survey also released last week, the Edison Electric Institute, an industry group, gravely predicted that electricity rates could rise as much as 50% if the emission-control legislation passed.
Government studies dispute these figures, but Congress has been suspended on acid-rain measures. Now, as a result of the academy study, supporters of the bills are more optimistic. Nevertheless, a major political battle is shaping up.

This article most probably appeared in()

A. a government document
B. a news magazine
C. a scientific research paper
D. a textbook of environmental science

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Passage 2
Is it possible that the ideas we have today about ownership and property rights have been so universal in the human mind that it is truly as if they had sprung from the mind of God By no means. The idea of owning and property emerged in the mists of unrecorded history. The ancient Jews, for one, had a very different outlook on property and ownership, viewing it as something much more temporary and tentative than we do.
The ideas we have in America about the private ownership of productive property as a natural and universal right of mankind, perhaps of divine origin, are by no means universal and must be viewed as an invention of man rather than an order of God. Of course, we are completely trained to accept the idea of ownership of the earth and its products, raw and transformed. It seems not at all strange; in fact, it is quite difficult to imagine a society without such arrangements. If someone, some individual, didn’t own that plot of land, that house, that factory, that machine, that tower of wheat, how would we function What would the rules be Whom would we buy from and how would we sell
It is important to acknowledge a significant difference between achieving ownership simply by taking or claiming property and owning what we tend to call the "fruit of labor". If I, alone or together with my family, work on the land and raise crops, or if I make something useful out of natural material, it seems reasonable and fair to claim that the crops or the objects belong to me or my family, are my property, at least in the sense that I have first claim on them. Hardly anyone would dispute that. In fact, some of the early radical workingmen’s movements made (an ownership) claim on those very grounds. As industrial organization became more complex, however, such issues became vastly more intricate. It must be clear that in modern society the social heritage of knowledge and technology and the social organization of manufacture and exchange account for far more of the productivity of industry and the value of what is produced than can be accounted for by the labor of any number of individuals. Hardly any person can now point and say, "That--that right there--is the fruit of my labor." We can say, as a society, as a nation--as a world, really--that what is produced is the fruit of our labor, the product of the whole society as a collectivity.
We have to recognize that the right of private individual ownership of property is man-made and constantly dependent on the extent to which those without property believe that the owner can make his claim stick.

Private ownership of property is finally described as()

A. a production of early man’s manual work
B. a demand for greater productivity in industry
C. varying with the shift in public approval
D. denied by socialized production and exchange

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Passage 6
Taking charge of yourself involves putting to rest some very prevalent myths. At the top of the list is the notion that intelligence is measured by your ability to solve complex problems; to read, write and compute at certain levels; and to resolve abstract equations quickly. This vision of intelligence asserts formal education and bookish excellence as the true measures of self-fulfillment. It encourages a kind of intellectual prejudice that has brought with it some discouraging results. We have come to believe that someone who has more educational merit badges, who is very good at some form of school discipline, is "intelligent"; yet mental hospitals are filled with patients who have all of the properly lettered certificates. A truer indicator of intelligence is an effective, happy life lived each day and each present moment of every day.
If you are happy, if you live each moment for everything it’s worth, then you are an intelligent person. Problem solving is a useful help to your happiness, but if you know that given your inability to resolve a particular concern you can still choose happiness for yourself, or at a minimum refuse to choose unhappiness, then you are intelligent. You are intelligent because you have the ultimate weapon against the big N.B.D. --Nervous Break Down.
"Intelligent" people do not have N.B.D. because they are in charge of themselves; they know how to choose happiness over depression, because they know how to deal with the problems of their lives.
You can begin to think of yourself as truly intelligent on the basis of how you choose to feel in the face of trying circumstances. The life struggles are pretty much the same for each of us. Everyone who is involved with other human beings in any social context has similar difficulties. Disagreements, conflicts and compromises are part of what it means to be a human. Similarly, money, growing old, sickness, deaths, natural disasters and accidents are all events which present problems to virtually all human beings. But some people are able to make it, to avoid immobilizing depression and unhappiness despite such occurrences, while others collapse or have an N.B.D. Those who recognize problems as a human condition and don’t measure happiness by an absence of problems are the most intelligent kind of humans we know; also, the most rare.

According to the passage, which people are rare()

A. Those who don’t emphasize bookish excellence in their pursuit of happiness
B. Those who are aware of difficulties in life but know how to avoid unhappiness
C. Those who measure happiness by an absence of problems but seldom suffer from N.B.D.’s
D. Those who are able to secure happiness though having to struggle against trying circumstances

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Passage 8
Researchers are increasingly interested in manipulating the environment early in children’s lives when they are perceived to be at risk for impoverished intelligence. In a program conducted in North Carolina by Craig Ramey and his associates, pregnant women with IQs averaging 80 were recruited for a study. After their babies were born,half of the infants were cared for during the day at an educational daycare center and half were reared at home by their mothers; both groups of children were given medical care and dietary supplements, and their families were given social services if they requested them.
At the age of 3, the children who attended the educational daycare center had significantly higher IQs than did the home-reared children. This difference was likely due to the decline in the IQs of the home-reared children during the period from 12 to 18 months of age. By the time the children were 5 years old, 39 percent of the home-reared children had IQs below 85 but only 11 percent of the educational day-care children had IQs this low. In the most recent evaluation of this project, positive effects of educational daycare on the intellectual development and academic achievement of the children were evident at age 12.
Some parents, such as those in Ramey’s study, have difficulty providing an adequate environment for the intellectual needs of their infants. Once these difficulties are a reoccurring part of the family system, changing efforts probably will be more difficult and costly; early intervention in the family system is directed at changing parental adaptive and responsive functioning so that permanent negative effects are minimized.
In another investigation, the Infant Health and Development Program, early intervention with low-birth weight children revealed that both home visitation and an educational child curriculum improved the children’s IQ, decreased behavior problems, and improved the home environment. The intervention was more effective with mothers with low educational attainment than those with high educational attainment, more effective for African American than White children, and effective for most at-risk children.
Intervention programs have the most positive effects on children’s well-being when they (a) begin as early as possible, (b) provide services to parents as well as to the child, (c) have a low child-teacher ratio, (d) have high parental involvement, and (e) have frequent contacts. In one review of family intervention studies, intervention was more effective when there were eleven or more contacts between the intervener and the family; while eleven sessions is a somewhat arbitrary number, it does indicate that a certain duration of contact is necessary for intervention success.

It is clear from the passage that the author advocates()

A. providing enough daycare centers for children of working mothers
B. early intervention in children’s intellectual growth
C. the natural development of children’s intelligence
D. depriving poor mothers of the opportunities to raise their children at home

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Passage 4
International airlines have rediscovered the business traveler. This does not necessarily mean that airlines ever abandoned their business travelers, but many airlines were accused of concentrating too heavily in the recent past on attracting passengers by volume, often at the expense of the business traveler.
Operating a major airline is essentially a matter of finding the right mix of passengers. The airlines need to fill up the back end of their wide-bodied jets with low fare passengers without forgetting that the front end should be filled with people who pay substantially more for their tickets.
It is no coincidence that the recent two major airlines bankruptcies were among the companies specializing in cheap flights. But low fares require consistently full aircraft to make flights economically viable; and in the recent recession the volume of traffic has reduced. Equally the large number of airliners jostling for the available passengers has created a huge excess of capacity; the net result of excess capacity and cut-throat competition driving down fares has been to push some airlines into collapse and leave many others hovering on the brink.
Against this grim background, it is no surprise that airlines are turning increasingly towards the business travelers to improve their rates of return; they have invested much time and effort to establish exactly the executive’s demands for sitting apart from the tourists.
High on the list of priorities is punctuality. In-flight service is another area where the airlines are jostling for the executive’s attention. The free drinks and headsets and better food are other parts of the attention. First-class passengers are now offered sleeperette seats.
The airlines are also trying to improve things on the ground. Executive lounges are intended to make the inevitable waiting between flights a little more bearable. Luggage handling is being improved. Regrettably, there is little that the airlines can do to speed up the boring immigration and Customs process, which upsets and frustrates passengers of all classes.
Although it is the airlines’ intention to attract executive passengers from their rivals, the airlines themselves would do nothing to change one bad habit of this kind of traveler--the habit of booking a flight and then failing to turn up. The practice is particularly widespread in Europe, where businessmen frequently book return journeys home on one of several flights. As a result, the airlines throw away empty seats, which cannot be resold. Some airlines have attempted to prevent the practice by offering discounts to passengers who travel on their booked flight. But this inevitably means that the structure of air fares, already highly complex, becomes even more baffling.

From the last paragraph, we can reasonably conclude that offering discounts will()

A. inevitably attract more people to travel on their booked flights
B. provoke a new "price battle" among airliners
C. ultimately change the habit of booking a flight and then failing to turn up
D. most probably pose a new problem on air fares

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Passage 7
No reference book, perhaps no book of any kind except the Bible, is so widely used as "the dictionary". Even houses that have few books or none at all possess at least one dictionary; most business offices have dictionaries, and most typists keep a copy on their desks; at one time or another most girls and boys are required by their teachers to obtain and use a dictionary.
Admittedly, the dictionary is often used merely to determine the correct spelling of words, or to find out the accepted pronunciation, and such a use is perhaps not the most important from an intellectual point of view. Dictionaries may, however, have social importance, for it is often a matter of some concern to the person using the dictionary for such purpose that he should not suggest to others, by misspelling a word in a letter, or mispronouncing it in conversation, that he is not "well-bred", and has not been well educated.
Yet, despite this familiarity with the dictionary, the average person is likely to have many wrong ideas about it, and little idea of how to use it profitably, or interpret it rightly. For example, it is often believed that the mere presence of a word in a dictionary is evidence that it is acceptable in good writing. Though most dictionaries have a system of marking words as obsolete, or in use only as slang, many people, more especially if their use of a particular word has been challenged, are likely to conclude, if they find it in a dictionary, that it is accepted as being used by writers of established reputation. This would certainly have been true of dictionaries a hundred years or so ago. For a long time after they were first firmly established in the eighteenth century, their aim was to include only what was used by the best writers, and all else was suppressed, and the compiler frequently claimed that this dictionary contained "low" words. Apparently this aspect of the dictionary achieved such importance in the mind of the average person that most people today are unaware of the great change that has taken place in the compilation of present-day dictionaries.
Similarly, the ordinary man invariably supposes that one dictionary is as good and authoritative as another, and, moreover, believes that "the dictionary" has absolute authority, and quotes it to clinch arguments. Although this is an advantage, in that the dictionary presents a definition the basic meaning of which can’t be altered by the speaker, yet it could be accepted only if all dictionaries agreed on the particular point in question. But ultimately the authority of the dictionary rests only on the authority of the man who compiled it, and, however careful he may be, a dictionary-maker is fallible: reputable dictionaries may disagree in their judgments, and indeed different sections of the same dictionary may differ.

When can one quote from dictionaries to settle his arguments decisively()

A. When he looks up in a dictionary that has absolute authority
B. When the basic meaning of a word found in one dictionary is confirmed in other ones
C. When a dictionary presents a definition that the basic meaning of which cannot be altered by the speakers
D. When the compiler of the dictionary is a reputable person

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Passage 9
One of the most pressing challenges that the United States--and indeed, the world--will face in the next few decades is how to alleviate the growing stress that human activities are placing on the environment. The consequences are just too great to ignore. Wildlife habitats are being degraded or disappearing altogether as new developments take up more land. Plant and animal species are becoming extinct at a greater rate now than at any time in Earth’s history. As many as 30 percent of the world’s fish stocks are overexploited. And the list goes on.
Yet, there is reason to have hope for the future. Advances in computing power and molecular biology are among the tremendous increases in scientific capability that are helping researchers gain a better understanding of these problems. Recent developments in science and technology could provide the basis for some major, and timely actions that would improve our understanding of how human activities affect the environment.
One priority for research is improving hydrological forecasting. It has been estimated that the world’s water use could triple in the next two decades. Already, widespread water shortages have occurred in parts of China, India, North Africa, and the Arabian Peninsula. The need for water also is taking its toll on freshwater ecosystems in the United States. Only 2 percent of the nation’s streams are considered in good condition, and close to 40 percent of native fish species are rare to extinct. Using a variety of new remote sensing tools, scientists can learn more about how precipitation affects water levels, how surface water is generated and transported, and how changes in the landscape affect water supplies.
To prevent outbreaks of infectious diseases in plants, animals, and humans, more study is needed on how pathogens, parasites, and disease-carrying species--as well as humans and other species they infect--are affected by changes in the environment. The overuse of antibiotics both in humans and in farm animals has contributed to the growth of antibiotic-resistant microorganisms. Researchers can take advantage of new technologies in genetics and computing to better monitor and predict the effects that environmental changes might have on disease outbreaks.
Humans have made alterations to Earth’s surface--such as tropical deforestation, reduction of surface and ground water, and massive development--so dramatic that they approach the levels of transformation that occurred during glacial periods. Such alterations cause changes in local and regional climate, and will determine the future of agriculture. Recent advances in data collection and analysis should be used to document and better understand the causes and consequences of changes in land cover and use.

Throughout the passage, the author mainly emphasizes()

A. the need for more federal funding of environmental scientific research
B. the role of science in alleviating environmental degradation
C. the role technology could play in environmental research
D. the extent of damage humans have wrought on the environment

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Passage 10
It is a well-known fact that there are constant conflicts among different groups of people, and that people tend to blame their misfortunes on some outside other groups for their misfortunes. What are the causes of group prejudice There seems to be little doubt that one of the principal causes of prejudice is fear: in particular the fear that the interests of our own group are going to be endangered by the actions of another. This is less likely to be the case in a stable, relatively unchanging society in which the members of different social and occupational groups know what to expect of each other, and know what to expect for themselves. In times of rapid social and economic change, however, new occupations and new social roles appear, and people start looking jealously at each other to see whether their own group is being left behind.
Once prejudice develops, it is hard to stop, because there are often social forces at work which actively encourage unfounded attitudes of hostility and fear towards other groups. One such force is education: we all know that children can be taught history in such a way as to perpetuate old hatreds and old prejudices between racial and political groups. Another social influence that has to be reckoned with is the pressure of public opinion. People often think and act differently in groups from the way that they would do as individuals; it takes a considerable effort of will, and often calls for great courage, to stand out against one’s fellows and insist they are wrong.
Why is it that we hear so much more about the failures of relationships between communities than we do about the successes I am afraid it is partly due to the increase in communications which radio, television and the popular press have brought about. In those countries where the media of mass communication are commercial enterprises, they tend to measure success by the size of their audience; and people are more likely to buy a newspaper, for instance, if their attention is caught by something dramatic, something sensational, or something that arouses their anxiety. The popular press flourishes on "scare headlines", and popular orators, especially if they are politicians addressing a relatively unsophisticated audience, know that the best way to arouse such an audience is to frighten them.
Where there is a real or imaginary threat to economic security, this is especially likely to inflame group prejudice. It is important to remember economic factors if we wish to lessen group prejudice, because unless they are dealt with squarely it will be little use simply persuading people not to be prejudiced against other groups whom they see as their rivals, if not their enemies.

The word "inflame" (Para. 4) probably means()

A. add
B. stop
C. calm
D. arouse

单项选择题

Passage 7
No reference book, perhaps no book of any kind except the Bible, is so widely used as "the dictionary". Even houses that have few books or none at all possess at least one dictionary; most business offices have dictionaries, and most typists keep a copy on their desks; at one time or another most girls and boys are required by their teachers to obtain and use a dictionary.
Admittedly, the dictionary is often used merely to determine the correct spelling of words, or to find out the accepted pronunciation, and such a use is perhaps not the most important from an intellectual point of view. Dictionaries may, however, have social importance, for it is often a matter of some concern to the person using the dictionary for such purpose that he should not suggest to others, by misspelling a word in a letter, or mispronouncing it in conversation, that he is not "well-bred", and has not been well educated.
Yet, despite this familiarity with the dictionary, the average person is likely to have many wrong ideas about it, and little idea of how to use it profitably, or interpret it rightly. For example, it is often believed that the mere presence of a word in a dictionary is evidence that it is acceptable in good writing. Though most dictionaries have a system of marking words as obsolete, or in use only as slang, many people, more especially if their use of a particular word has been challenged, are likely to conclude, if they find it in a dictionary, that it is accepted as being used by writers of established reputation. This would certainly have been true of dictionaries a hundred years or so ago. For a long time after they were first firmly established in the eighteenth century, their aim was to include only what was used by the best writers, and all else was suppressed, and the compiler frequently claimed that this dictionary contained "low" words. Apparently this aspect of the dictionary achieved such importance in the mind of the average person that most people today are unaware of the great change that has taken place in the compilation of present-day dictionaries.
Similarly, the ordinary man invariably supposes that one dictionary is as good and authoritative as another, and, moreover, believes that "the dictionary" has absolute authority, and quotes it to clinch arguments. Although this is an advantage, in that the dictionary presents a definition the basic meaning of which can’t be altered by the speaker, yet it could be accepted only if all dictionaries agreed on the particular point in question. But ultimately the authority of the dictionary rests only on the authority of the man who compiled it, and, however careful he may be, a dictionary-maker is fallible: reputable dictionaries may disagree in their judgments, and indeed different sections of the same dictionary may differ.

According to the author, differences between dictionaries or in a dictionary usually result from()

A. varied definitions of a word
B. the different purposes of making them
C. misinterpretations of users
D. different judgment of the compilers

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