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Read the passage and answer the questions. Then, mark your answer by blackening the corresponding letter on the Answer Sheet. It is hard to predict how science is going to turn out, and if it is really good science it is impossible to predict. If the things to be found are actually new, they are by definition un known in advance. You either have science or you don’t, and if you have it you are obliged to accept the surprising and disturbing pieces of information, along with the neat and promptly used bits. The only solid piece of scientific truth about which I feel totally confident is that we are profoundly ignorant about nature, l regard this as the major discovery of the past hundred years of biology. It would have amazed the brightest minds of the 18th century Enlightenment(启运动) to be told by any of us how little we know and how bewildering the way ahead seems. It is this sudden confrontation with the depth and scope of ignorance that represents the most significant contribution of the 20th century science to the human intellect. In earlier times, we either pretended to understand how things worked or ignored the problems, or simply made up stories to fill the gaps. Now that we have begun exploring in earnest, we are getting glimpses of how huge the questions are, and how far from being answered. Because of this, we are de pressed. It is not so bad being ignorant if you are totally ignorant. But we are making a beginning, and there ought to be some satisfaction. There are probably no questions we can think up that can’t be answered, sooner or later, including even the matter of consciousness. To be sure, there may well be questions we can’t think up, ever, and therefore limits to the reach of human intellect, but that is another matter. Within our limits, we should be able to work our way through to all our answers, if we keep at it long enough, and pay attention.

Read the passage and answer the questions. Then, mark your answer by blackening the corresponding letter on the Answer Sheet. It is hard to predict how science is going to turn out, and if it is really good science it is impossible to predict. If the things to be found are actually new, they are by definition un known in advance. You either have science or you don’t, and if you have it you are obliged to accept the surprising and disturbing pieces of information, along with the neat and promptly used bits. The only solid piece of scientific truth about which I feel totally confident is that we are profoundly ignorant about nature, l regard this as the major discovery of the past hundred years of biology. It would have amazed the brightest minds of the 18th century Enlightenment(启运动) to be told by any of us how little we know and how bewildering the way ahead seems. It is this sudden confrontation with the depth and scope of ignorance that represents the most significant contribution of the 20th century science to the human intellect. In earlier times, we either pretended to understand how things worked or ignored the problems, or simply made up stories to fill the gaps. Now that we have begun exploring in earnest, we are getting glimpses of how huge the questions are, and how far from being answered. Because of this, we are de pressed. It is not so bad being ignorant if you are totally ignorant. But we are making a beginning, and there ought to be some satisfaction. There are probably no questions we can think up that can’t be answered, sooner or later, including even the matter of consciousness. To be sure, there may well be questions we can’t think up, ever, and therefore limits to the reach of human intellect, but that is another matter. Within our limits, we should be able to work our way through to all our answers, if we keep at it long enough, and pay attention.

Read the passage and answer the questions. Then, mark your answer by blackening the corresponding letter on the Answer Sheet. It is hard to predict how science is going to turn out, and if it is really good science it is impossible to predict. If the things to be found are actually new, they are by definition un known in advance. You either have science or you don’t, and if you have it you are obliged to accept the surprising and disturbing pieces of information, along with the neat and promptly used bits. The only solid piece of scientific truth about which I feel totally confident is that we are profoundly ignorant about nature, l regard this as the major discovery of the past hundred years of biology. It would have amazed the brightest minds of the 18th century Enlightenment(启运动) to be told by any of us how little we know and how bewildering the way ahead seems. It is this sudden confrontation with the depth and scope of ignorance that represents the most significant contribution of the 20th century science to the human intellect. In earlier times, we either pretended to understand how things worked or ignored the problems, or simply made up stories to fill the gaps. Now that we have begun exploring in earnest, we are getting glimpses of how huge the questions are, and how far from being answered. Because of this, we are de pressed. It is not so bad being ignorant if you are totally ignorant. But we are making a beginning, and there ought to be some satisfaction. There are probably no questions we can think up that can’t be answered, sooner or later, including even the matter of consciousness. To be sure, there may well be questions we can’t think up, ever, and therefore limits to the reach of human intellect, but that is another matter. Within our limits, we should be able to work our way through to all our answers, if we keep at it long enough, and pay attention.

Read the passage and answer the questions. Then, mark your answer by blackening the corresponding letter on the Answer Sheet. It is hard to predict how science is going to turn out, and if it is really good science it is impossible to predict. If the things to be found are actually new, they are by definition un known in advance. You either have science or you don’t, and if you have it you are obliged to accept the surprising and disturbing pieces of information, along with the neat and promptly used bits. The only solid piece of scientific truth about which I feel totally confident is that we are profoundly ignorant about nature, l regard this as the major discovery of the past hundred years of biology. It would have amazed the brightest minds of the 18th century Enlightenment(启运动) to be told by any of us how little we know and how bewildering the way ahead seems. It is this sudden confrontation with the depth and scope of ignorance that represents the most significant contribution of the 20th century science to the human intellect. In earlier times, we either pretended to understand how things worked or ignored the problems, or simply made up stories to fill the gaps. Now that we have begun exploring in earnest, we are getting glimpses of how huge the questions are, and how far from being answered. Because of this, we are de pressed. It is not so bad being ignorant if you are totally ignorant. But we are making a beginning, and there ought to be some satisfaction. There are probably no questions we can think up that can’t be answered, sooner or later, including even the matter of consciousness. To be sure, there may well be questions we can’t think up, ever, and therefore limits to the reach of human intellect, but that is another matter. Within our limits, we should be able to work our way through to all our answers, if we keep at it long enough, and pay attention.

Read the passage and answer the questions. Then, mark your answer by blackening the corresponding letter on the Answer Sheet. It is hard to predict how science is going to turn out, and if it is really good science it is impossible to predict. If the things to be found are actually new, they are by definition un known in advance. You either have science or you don’t, and if you have it you are obliged to accept the surprising and disturbing pieces of information, along with the neat and promptly used bits. The only solid piece of scientific truth about which I feel totally confident is that we are profoundly ignorant about nature, l regard this as the major discovery of the past hundred years of biology. It would have amazed the brightest minds of the 18th century Enlightenment(启运动) to be told by any of us how little we know and how bewildering the way ahead seems. It is this sudden confrontation with the depth and scope of ignorance that represents the most significant contribution of the 20th century science to the human intellect. In earlier times, we either pretended to understand how things worked or ignored the problems, or simply made up stories to fill the gaps. Now that we have begun exploring in earnest, we are getting glimpses of how huge the questions are, and how far from being answered. Because of this, we are de pressed. It is not so bad being ignorant if you are totally ignorant. But we are making a beginning, and there ought to be some satisfaction. There are probably no questions we can think up that can’t be answered, sooner or later, including even the matter of consciousness. To be sure, there may well be questions we can’t think up, ever, and therefore limits to the reach of human intellect, but that is another matter. Within our limits, we should be able to work our way through to all our answers, if we keep at it long enough, and pay attention.

Read the passage and answer the questions. Then, mark your answer by blackening the corresponding letter on the Answer Sheet. It is hard to predict how science is going to turn out, and if it is really good science it is impossible to predict. If the things to be found are actually new, they are by definition un known in advance. You either have science or you don’t, and if you have it you are obliged to accept the surprising and disturbing pieces of information, along with the neat and promptly used bits. The only solid piece of scientific truth about which I feel totally confident is that we are profoundly ignorant about nature, l regard this as the major discovery of the past hundred years of biology. It would have amazed the brightest minds of the 18th century Enlightenment(启运动) to be told by any of us how little we know and how bewildering the way ahead seems. It is this sudden confrontation with the depth and scope of ignorance that represents the most significant contribution of the 20th century science to the human intellect. In earlier times, we either pretended to understand how things worked or ignored the problems, or simply made up stories to fill the gaps. Now that we have begun exploring in earnest, we are getting glimpses of how huge the questions are, and how far from being answered. Because of this, we are de pressed. It is not so bad being ignorant if you are totally ignorant. But we are making a beginning, and there ought to be some satisfaction. There are probably no questions we can think up that can’t be answered, sooner or later, including even the matter of consciousness. To be sure, there may well be questions we can’t think up, ever, and therefore limits to the reach of human intellect, but that is another matter. Within our limits, we should be able to work our way through to all our answers, if we keep at it long enough, and pay attention.

Read the passage and answer the questions. Then, mark your answer by blackening the corresponding letter on the Answer Sheet. It is hard to predict how science is going to turn out, and if it is really good science it is impossible to predict. If the things to be found are actually new, they are by definition un known in advance. You either have science or you don’t, and if you have it you are obliged to accept the surprising and disturbing pieces of information, along with the neat and promptly used bits. The only solid piece of scientific truth about which I feel totally confident is that we are profoundly ignorant about nature, l regard this as the major discovery of the past hundred years of biology. It would have amazed the brightest minds of the 18th century Enlightenment(启运动) to be told by any of us how little we know and how bewildering the way ahead seems. It is this sudden confrontation with the depth and scope of ignorance that represents the most significant contribution of the 20th century science to the human intellect. In earlier times, we either pretended to understand how things worked or ignored the problems, or simply made up stories to fill the gaps. Now that we have begun exploring in earnest, we are getting glimpses of how huge the questions are, and how far from being answered. Because of this, we are de pressed. It is not so bad being ignorant if you are totally ignorant. But we are making a beginning, and there ought to be some satisfaction. There are probably no questions we can think up that can’t be answered, sooner or later, including even the matter of consciousness. To be sure, there may well be questions we can’t think up, ever, and therefore limits to the reach of human intellect, but that is another matter. Within our limits, we should be able to work our way through to all our answers, if we keep at it long enough, and pay attention.

Read the passage and answer the questions. Then, mark your answer by blackening the corresponding letter on the Answer Sheet. It is hard to predict how science is going to turn out, and if it is really good science it is impossible to predict. If the things to be found are actually new, they are by definition un known in advance. You either have science or you don’t, and if you have it you are obliged to accept the surprising and disturbing pieces of information, along with the neat and promptly used bits. The only solid piece of scientific truth about which I feel totally confident is that we are profoundly ignorant about nature, l regard this as the major discovery of the past hundred years of biology. It would have amazed the brightest minds of the 18th century Enlightenment(启运动) to be told by any of us how little we know and how bewildering the way ahead seems. It is this sudden confrontation with the depth and scope of ignorance that represents the most significant contribution of the 20th century science to the human intellect. In earlier times, we either pretended to understand how things worked or ignored the problems, or simply made up stories to fill the gaps. Now that we have begun exploring in earnest, we are getting glimpses of how huge the questions are, and how far from being answered. Because of this, we are de pressed. It is not so bad being ignorant if you are totally ignorant. But we are making a beginning, and there ought to be some satisfaction. There are probably no questions we can think up that can’t be answered, sooner or later, including even the matter of consciousness. To be sure, there may well be questions we can’t think up, ever, and therefore limits to the reach of human intellect, but that is another matter. Within our limits, we should be able to work our way through to all our answers, if we keep at it long enough, and pay attention.

Read the passage and answer the questions. Then, mark your answer by blackening the corresponding letter on the Answer Sheet. It is hard to predict how science is going to turn out, and if it is really good science it is impossible to predict. If the things to be found are actually new, they are by definition un known in advance. You either have science or you don’t, and if you have it you are obliged to accept the surprising and disturbing pieces of information, along with the neat and promptly used bits. The only solid piece of scientific truth about which I feel totally confident is that we are profoundly ignorant about nature, l regard this as the major discovery of the past hundred years of biology. It would have amazed the brightest minds of the 18th century Enlightenment(启运动) to be told by any of us how little we know and how bewildering the way ahead seems. It is this sudden confrontation with the depth and scope of ignorance that represents the most significant contribution of the 20th century science to the human intellect. In earlier times, we either pretended to understand how things worked or ignored the problems, or simply made up stories to fill the gaps. Now that we have begun exploring in earnest, we are getting glimpses of how huge the questions are, and how far from being answered. Because of this, we are de pressed. It is not so bad being ignorant if you are totally ignorant. But we are making a beginning, and there ought to be some satisfaction. There are probably no questions we can think up that can’t be answered, sooner or later, including even the matter of consciousness. To be sure, there may well be questions we can’t think up, ever, and therefore limits to the reach of human intellect, but that is another matter. Within our limits, we should be able to work our way through to all our answers, if we keep at it long enough, and pay attention.

Read the passage and answer the questions. Then, mark your answer by blackening the corresponding letter on the Answer Sheet. It is hard to predict how science is going to turn out, and if it is really good science it is impossible to predict. If the things to be found are actually new, they are by definition un known in advance. You either have science or you don’t, and if you have it you are obliged to accept the surprising and disturbing pieces of information, along with the neat and promptly used bits. The only solid piece of scientific truth about which I feel totally confident is that we are profoundly ignorant about nature, l regard this as the major discovery of the past hundred years of biology. It would have amazed the brightest minds of the 18th century Enlightenment(启运动) to be told by any of us how little we know and how bewildering the way ahead seems. It is this sudden confrontation with the depth and scope of ignorance that represents the most significant contribution of the 20th century science to the human intellect. In earlier times, we either pretended to understand how things worked or ignored the problems, or simply made up stories to fill the gaps. Now that we have begun exploring in earnest, we are getting glimpses of how huge the questions are, and how far from being answered. Because of this, we are de pressed. It is not so bad being ignorant if you are totally ignorant. But we are making a beginning, and there ought to be some satisfaction. There are probably no questions we can think up that can’t be answered, sooner or later, including even the matter of consciousness. To be sure, there may well be questions we can’t think up, ever, and therefore limits to the reach of human intellect, but that is another matter. Within our limits, we should be able to work our way through to all our answers, if we keep at it long enough, and pay attention.

Read the passage and answer the questions. Then, mark your answer by blackening the corresponding letter on the Answer Sheet. It is hard to predict how science is going to turn out, and if it is really good science it is impossible to predict. If the things to be found are actually new, they are by definition un known in advance. You either have science or you don’t, and if you have it you are obliged to accept the surprising and disturbing pieces of information, along with the neat and promptly used bits. The only solid piece of scientific truth about which I feel totally confident is that we are profoundly ignorant about nature, l regard this as the major discovery of the past hundred years of biology. It would have amazed the brightest minds of the 18th century Enlightenment(启运动) to be told by any of us how little we know and how bewildering the way ahead seems. It is this sudden confrontation with the depth and scope of ignorance that represents the most significant contribution of the 20th century science to the human intellect. In earlier times, we either pretended to understand how things worked or ignored the problems, or simply made up stories to fill the gaps. Now that we have begun exploring in earnest, we are getting glimpses of how huge the questions are, and how far from being answered. Because of this, we are de pressed. It is not so bad being ignorant if you are totally ignorant. But we are making a beginning, and there ought to be some satisfaction. There are probably no questions we can think up that can’t be answered, sooner or later, including even the matter of consciousness. To be sure, there may well be questions we can’t think up, ever, and therefore limits to the reach of human intellect, but that is another matter. Within our limits, we should be able to work our way through to all our answers, if we keep at it long enough, and pay attention.

Read the passage and answer the questions. Then, mark your answer by blackening the corresponding letter on the Answer Sheet. It is hard to predict how science is going to turn out, and if it is really good science it is impossible to predict. If the things to be found are actually new, they are by definition un known in advance. You either have science or you don’t, and if you have it you are obliged to accept the surprising and disturbing pieces of information, along with the neat and promptly used bits. The only solid piece of scientific truth about which I feel totally confident is that we are profoundly ignorant about nature, l regard this as the major discovery of the past hundred years of biology. It would have amazed the brightest minds of the 18th century Enlightenment(启运动) to be told by any of us how little we know and how bewildering the way ahead seems. It is this sudden confrontation with the depth and scope of ignorance that represents the most significant contribution of the 20th century science to the human intellect. In earlier times, we either pretended to understand how things worked or ignored the problems, or simply made up stories to fill the gaps. Now that we have begun exploring in earnest, we are getting glimpses of how huge the questions are, and how far from being answered. Because of this, we are de pressed. It is not so bad being ignorant if you are totally ignorant. But we are making a beginning, and there ought to be some satisfaction. There are probably no questions we can think up that can’t be answered, sooner or later, including even the matter of consciousness. To be sure, there may well be questions we can’t think up, ever, and therefore limits to the reach of human intellect, but that is another matter. Within our limits, we should be able to work our way through to all our answers, if we keep at it long enough, and pay attention.

Read the passage and answer the questions. Then, mark your answer by blackening the corresponding letter on the Answer Sheet. It is hard to predict how science is going to turn out, and if it is really good science it is impossible to predict. If the things to be found are actually new, they are by definition un known in advance. You either have science or you don’t, and if you have it you are obliged to accept the surprising and disturbing pieces of information, along with the neat and promptly used bits. The only solid piece of scientific truth about which I feel totally confident is that we are profoundly ignorant about nature, l regard this as the major discovery of the past hundred years of biology. It would have amazed the brightest minds of the 18th century Enlightenment(启运动) to be told by any of us how little we know and how bewildering the way ahead seems. It is this sudden confrontation with the depth and scope of ignorance that represents the most significant contribution of the 20th century science to the human intellect. In earlier times, we either pretended to understand how things worked or ignored the problems, or simply made up stories to fill the gaps. Now that we have begun exploring in earnest, we are getting glimpses of how huge the questions are, and how far from being answered. Because of this, we are de pressed. It is not so bad being ignorant if you are totally ignorant. But we are making a beginning, and there ought to be some satisfaction. There are probably no questions we can think up that can’t be answered, sooner or later, including even the matter of consciousness. To be sure, there may well be questions we can’t think up, ever, and therefore limits to the reach of human intellect, but that is another matter. Within our limits, we should be able to work our way through to all our answers, if we keep at it long enough, and pay attention.

Read the passage and answer the questions. Then, mark your answer by blackening the corresponding letter on the Answer Sheet. It is hard to predict how science is going to turn out, and if it is really good science it is impossible to predict. If the things to be found are actually new, they are by definition un known in advance. You either have science or you don’t, and if you have it you are obliged to accept the surprising and disturbing pieces of information, along with the neat and promptly used bits. The only solid piece of scientific truth about which I feel totally confident is that we are profoundly ignorant about nature, l regard this as the major discovery of the past hundred years of biology. It would have amazed the brightest minds of the 18th century Enlightenment(启运动) to be told by any of us how little we know and how bewildering the way ahead seems. It is this sudden confrontation with the depth and scope of ignorance that represents the most significant contribution of the 20th century science to the human intellect. In earlier times, we either pretended to understand how things worked or ignored the problems, or simply made up stories to fill the gaps. Now that we have begun exploring in earnest, we are getting glimpses of how huge the questions are, and how far from being answered. Because of this, we are de pressed. It is not so bad being ignorant if you are totally ignorant. But we are making a beginning, and there ought to be some satisfaction. There are probably no questions we can think up that can’t be answered, sooner or later, including even the matter of consciousness. To be sure, there may well be questions we can’t think up, ever, and therefore limits to the reach of human intellect, but that is another matter. Within our limits, we should be able to work our way through to all our answers, if we keep at it long enough, and pay attention.

Read the passage and answer the questions. Then, mark your answer by blackening the corresponding letter on the Answer Sheet. It is hard to predict how science is going to turn out, and if it is really good science it is impossible to predict. If the things to be found are actually new, they are by definition un known in advance. You either have science or you don’t, and if you have it you are obliged to accept the surprising and disturbing pieces of information, along with the neat and promptly used bits. The only solid piece of scientific truth about which I feel totally confident is that we are profoundly ignorant about nature, l regard this as the major discovery of the past hundred years of biology. It would have amazed the brightest minds of the 18th century Enlightenment(启运动) to be told by any of us how little we know and how bewildering the way ahead seems. It is this sudden confrontation with the depth and scope of ignorance that represents the most significant contribution of the 20th century science to the human intellect. In earlier times, we either pretended to understand how things worked or ignored the problems, or simply made up stories to fill the gaps. Now that we have begun exploring in earnest, we are getting glimpses of how huge the questions are, and how far from being answered. Because of this, we are de pressed. It is not so bad being ignorant if you are totally ignorant. But we are making a beginning, and there ought to be some satisfaction. There are probably no questions we can think up that can’t be answered, sooner or later, including even the matter of consciousness. To be sure, there may well be questions we can’t think up, ever, and therefore limits to the reach of human intellect, but that is another matter. Within our limits, we should be able to work our way through to all our answers, if we keep at it long enough, and pay attention.

Read the passage and answer the questions. Then, mark your answer by blackening the corresponding letter on the Answer Sheet. It is hard to predict how science is going to turn out, and if it is really good science it is impossible to predict. If the things to be found are actually new, they are by definition un known in advance. You either have science or you don’t, and if you have it you are obliged to accept the surprising and disturbing pieces of information, along with the neat and promptly used bits. The only solid piece of scientific truth about which I feel totally confident is that we are profoundly ignorant about nature, l regard this as the major discovery of the past hundred years of biology. It would have amazed the brightest minds of the 18th century Enlightenment(启运动) to be told by any of us how little we know and how bewildering the way ahead seems. It is this sudden confrontation with the depth and scope of ignorance that represents the most significant contribution of the 20th century science to the human intellect. In earlier times, we either pretended to understand how things worked or ignored the problems, or simply made up stories to fill the gaps. Now that we have begun exploring in earnest, we are getting glimpses of how huge the questions are, and how far from being answered. Because of this, we are de pressed. It is not so bad being ignorant if you are totally ignorant. But we are making a beginning, and there ought to be some satisfaction. There are probably no questions we can think up that can’t be answered, sooner or later, including even the matter of consciousness. To be sure, there may well be questions we can’t think up, ever, and therefore limits to the reach of human intellect, but that is another matter. Within our limits, we should be able to work our way through to all our answers, if we keep at it long enough, and pay attention.

Read the passage and answer the questions. Then, mark your answer by blackening the corresponding letter on the Answer Sheet. It is hard to predict how science is going to turn out, and if it is really good science it is impossible to predict. If the things to be found are actually new, they are by definition un known in advance. You either have science or you don’t, and if you have it you are obliged to accept the surprising and disturbing pieces of information, along with the neat and promptly used bits. The only solid piece of scientific truth about which I feel totally confident is that we are profoundly ignorant about nature, l regard this as the major discovery of the past hundred years of biology. It would have amazed the brightest minds of the 18th century Enlightenment(启运动) to be told by any of us how little we know and how bewildering the way ahead seems. It is this sudden confrontation with the depth and scope of ignorance that represents the most significant contribution of the 20th century science to the human intellect. In earlier times, we either pretended to understand how things worked or ignored the problems, or simply made up stories to fill the gaps. Now that we have begun exploring in earnest, we are getting glimpses of how huge the questions are, and how far from being answered. Because of this, we are de pressed. It is not so bad being ignorant if you are totally ignorant. But we are making a beginning, and there ought to be some satisfaction. There are probably no questions we can think up that can’t be answered, sooner or later, including even the matter of consciousness. To be sure, there may well be questions we can’t think up, ever, and therefore limits to the reach of human intellect, but that is another matter. Within our limits, we should be able to work our way through to all our answers, if we keep at it long enough, and pay attention.

Read the passage and answer the questions. Then, mark your answer by blackening the corresponding letter on the Answer Sheet. It is hard to predict how science is going to turn out, and if it is really good science it is impossible to predict. If the things to be found are actually new, they are by definition un known in advance. You either have science or you don’t, and if you have it you are obliged to accept the surprising and disturbing pieces of information, along with the neat and promptly used bits. The only solid piece of scientific truth about which I feel totally confident is that we are profoundly ignorant about nature, l regard this as the major discovery of the past hundred years of biology. It would have amazed the brightest minds of the 18th century Enlightenment(启运动) to be told by any of us how little we know and how bewildering the way ahead seems. It is this sudden confrontation with the depth and scope of ignorance that represents the most significant contribution of the 20th century science to the human intellect. In earlier times, we either pretended to understand how things worked or ignored the problems, or simply made up stories to fill the gaps. Now that we have begun exploring in earnest, we are getting glimpses of how huge the questions are, and how far from being answered. Because of this, we are de pressed. It is not so bad being ignorant if you are totally ignorant. But we are making a beginning, and there ought to be some satisfaction. There are probably no questions we can think up that can’t be answered, sooner or later, including even the matter of consciousness. To be sure, there may well be questions we can’t think up, ever, and therefore limits to the reach of human intellect, but that is another matter. Within our limits, we should be able to work our way through to all our answers, if we keep at it long enough, and pay attention.

Read the passage and answer the questions. Then, mark your answer by blackening the corresponding letter on the Answer Sheet. It is hard to predict how science is going to turn out, and if it is really good science it is impossible to predict. If the things to be found are actually new, they are by definition un known in advance. You either have science or you don’t, and if you have it you are obliged to accept the surprising and disturbing pieces of information, along with the neat and promptly used bits. The only solid piece of scientific truth about which I feel totally confident is that we are profoundly ignorant about nature, l regard this as the major discovery of the past hundred years of biology. It would have amazed the brightest minds of the 18th century Enlightenment(启运动) to be told by any of us how little we know and how bewildering the way ahead seems. It is this sudden confrontation with the depth and scope of ignorance that represents the most significant contribution of the 20th century science to the human intellect. In earlier times, we either pretended to understand how things worked or ignored the problems, or simply made up stories to fill the gaps. Now that we have begun exploring in earnest, we are getting glimpses of how huge the questions are, and how far from being answered. Because of this, we are de pressed. It is not so bad being ignorant if you are totally ignorant. But we are making a beginning, and there ought to be some satisfaction. There are probably no questions we can think up that can’t be answered, sooner or later, including even the matter of consciousness. To be sure, there may well be questions we can’t think up, ever, and therefore limits to the reach of human intellect, but that is another matter. Within our limits, we should be able to work our way through to all our answers, if we keep at it long enough, and pay attention.

Read the passage and answer the questions. Then, mark your answer by blackening the corresponding letter on the Answer Sheet. It is hard to predict how science is going to turn out, and if it is really good science it is impossible to predict. If the things to be found are actually new, they are by definition un known in advance. You either have science or you don’t, and if you have it you are obliged to accept the surprising and disturbing pieces of information, along with the neat and promptly used bits. The only solid piece of scientific truth about which I feel totally confident is that we are profoundly ignorant about nature, l regard this as the major discovery of the past hundred years of biology. It would have amazed the brightest minds of the 18th century Enlightenment(启运动) to be told by any of us how little we know and how bewildering the way ahead seems. It is this sudden confrontation with the depth and scope of ignorance that represents the most significant contribution of the 20th century science to the human intellect. In earlier times, we either pretended to understand how things worked or ignored the problems, or simply made up stories to fill the gaps. Now that we have begun exploring in earnest, we are getting glimpses of how huge the questions are, and how far from being answered. Because of this, we are de pressed. It is not so bad being ignorant if you are totally ignorant. But we are making a beginning, and there ought to be some satisfaction. There are probably no questions we can think up that can’t be answered, sooner or later, including even the matter of consciousness. To be sure, there may well be questions we can’t think up, ever, and therefore limits to the reach of human intellect, but that is another matter. Within our limits, we should be able to work our way through to all our answers, if we keep at it long enough, and pay attention.

Read the passage and answer the questions. Then, mark your answer by blackening the corresponding letter on the Answer Sheet. It is hard to predict how science is going to turn out, and if it is really good science it is impossible to predict. If the things to be found are actually new, they are by definition un known in advance. You either have science or you don’t, and if you have it you are obliged to accept the surprising and disturbing pieces of information, along with the neat and promptly used bits. The only solid piece of scientific truth about which I feel totally confident is that we are profoundly ignorant about nature, l regard this as the major discovery of the past hundred years of biology. It would have amazed the brightest minds of the 18th century Enlightenment(启运动) to be told by any of us how little we know and how bewildering the way ahead seems. It is this sudden confrontation with the depth and scope of ignorance that represents the most significant contribution of the 20th century science to the human intellect. In earlier times, we either pretended to understand how things worked or ignored the problems, or simply made up stories to fill the gaps. Now that we have begun exploring in earnest, we are getting glimpses of how huge the questions are, and how far from being answered. Because of this, we are de pressed. It is not so bad being ignorant if you are totally ignorant. But we are making a beginning, and there ought to be some satisfaction. There are probably no questions we can think up that can’t be answered, sooner or later, including even the matter of consciousness. To be sure, there may well be questions we can’t think up, ever, and therefore limits to the reach of human intellect, but that is another matter. Within our limits, we should be able to work our way through to all our answers, if we keep at it long enough, and pay attention.