单项选择题X 纠错Text 2
For years there have been endless
articles stating that scientists are on the verge of achieving artificial
intelligence, that it is just around the corner. The truth is that it may be
just around the corner, but they haven’t yet found the right clock.
Artificial intelligence aims to build machines that can think. One
immediate problem is to define thought, which is harder than you might think.
The specialists in the field of artificial intelligence complain, with some
justification, that anything that their machines do is dismissed as not being
thought. For example, computers can now play very, very good chess. They can’t
beat the greatest players in the world, but they can beat just about anybody
else. If a human being played chess at this level, he or she would certainly be
considered smart. Why not a machine The answer is that the machine doesn’t do
anything clever in playing chess. It uses its blinding speed to do a brute-force
search of all possible moves for several moves ahead, evaluates the outcomes and
picks the best. Humans don’t play chess that way. They see patterns, which
computers don’t.
This wooden approach to thought characterizes
machine intelligence. Computers have no judgment, no flexibility, no common
sense. So-called expert systems, one of the hottest areas in artificial
intelligence, aim to mimic the reasoning processes of human experts in a limited
field, such as medical diagnosis or weather forecasting. There may be limited
commercial applications for this sort of thing, but there is no way to make a
machine think about anything under the sun, which a teenager can do. The
hallmark of artificial intelligence to date is that if a problem is severely
restricted, a machine can achieve limited success. But when the problem is
expanded to a realistic one, computers fall flat on their display screens. For
example, machines can understand a few words spoken individually by a speaker
that they have been trained to hear. They cannot understand continuous speech
using an unlimited vocabulary spoken by just any
speaker.
A．thinks that scientists are about to achieve artificial intelligence
B．doubts whether scientists can ever achieve artificial intelligence
C．does not think that scientists have found real artificial intelligence
D．is sure that scientists have achieved artificial intelligence
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单项选择题
A．functioning properly
B．two tons
C．totally out of control
D．going to hit the Atlantic Ocean
单项选择题
An elderly carpenter was ready to
retire. He told his employer of his plans to (26) the
house-building business to live a more (27) life with his
wife and enjoy his (28) family. He would miss the paycheck
(工资) each week, but he wanted to retire. They could (29) The
employer was (30) to see his good worker go and asked if he
could build just one more house as a personal favor. The carpenter said yes,
(31) over time it was easy to see that his heart was not in his
work. He used bad workmanship and (32) materials. It was an
unfortunate way to (33) a dedicated (献身的) career.
When the carpenter finished his work, his employer came to (34)
the house. Then he handed the front-door (35) to
the carpenter and said, "This is your house—my (36) to you."
The carpenter was shocked! What a (37) !If he had only known
he was building his own house, he would have done it all so
differently.
(38) it is with us. We build
our lives, a day at a time, often putting (39) than our best
into the building. Then, with a shock, we (40) we have to
live in the house we have built. If we could do it (41) , we
would do it much differently.
But, you cannot go back. You are
the carpenter, and every day you hammer a nail, place a board, or build a wall.
Someone (42) said, "Life is a do-it-yourself project."
Your (43) ,and the choices you (44) today,
help build the "house" you will live in tomorrow. Therefore, build (45)
!
A．continue
B．start
C．leave
D．find
单项选择题
A．Because they have a driving license.
B．Because they have received special training.
C．Because the traffic system of the city is not very complex.
D．Because the traffic conditions in London are good.
单项选择题
A．At the airport.
B．In the classroom.
C．In a restaurant.
D．On the street.
单项选择题
A．Give his ankle a rest.
B．Go to a doctor.
C．Be careful when walking.
D．Continue his regular activity.
单项选择题
Part A
You will hear 10 short dialogues. For each
dialogue, there is one question and four possible answers. Choose the correct
answer A, B, C or D, and mark it in your test booklet. You will have 15 seconds
to answer the question and you will hear each dialogue ONLY ONCE.
A．He is disappointed.
B．He is happy.
C．He feels so-so.
D．He does not care.
