大学英语大学英语大学英语四级(CET4)大学英语四级模拟题18

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• 1Which statement best expresses the main idea of this article、

  A.People should eat any food to keep themselves healthy and strong.

  B.People should eat natural foods to keep themselves healthy and strong.

  C.People should eat fiber foods to keep themselves healthy and strong.

  D.People should eat vegetables to keep themselves healthy and strong.

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• 2“Particularly processed foods” means ____.

  A.foods which are particularly processed by adding chemical additives

  B.foods which are particularly made by commercial farms

  C.foods which are specially produced by commercial factories

  D.foods which are not specially made by adding anything

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• 3Natural foods means ____.

  A.foods good for health

  B.foods not good for health

  C.foods such as vegetables, fruit and grain from rich organic matters soil

  D.crops from rich organic matters soil and meats of animals from healthy pastures

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• 4There are no vitamins, no minerals and no fibers in ____.

  A.natural foods

  B.animal meats

  C.sugar

  D.fruit

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• 5“Yet all it does is provide us with energy, in the form of calories.” It means ____.

  A.processed food provides us with energy

  B.natural food furnishes us with vitamins and minerals

  C.sugar gives us enough energy in the form of calories

  D.fiber helps us to digest food

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• 6In the first paragraph, the author thinks an electronic computer can ____.

  A.copy down all the facts

  B.remember all the facts

  C.organize the facts and everything

  D.copy down, remember and organize all the facts

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• 7“Program” means ____.

  A.a plan of what is to be done

  B.a complete show on a TV station at a fixed time table

  C.a scheduled performance

  D.series of coded instructions to control the operations of a computer

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• 8The computer is a high powered “memory” machine, which ____.

  A.has all the ready answers — or almost all to any questions

  B.can remember everything

  C.can store everything and work for you

  D.has all the answers — or almost to all the information that has been stored

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• 9“Thinking” machines suggest that ____.

  A.they can “read” hand printed letters etc

  B.they really can think and do many other jobs

  C.they even design other computers

  D.they can't think, but can do something under human control

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• 10Can computers do whatever they want to do、Why、

  A.Yes, because some computers can work 500,000 times faster than any person can.

  B.No, because they normally have a few hundred thousand parts.

  C.No, because human brains are at least 10000 times more complex than any computers.

  D.No, because how a computer works is decided by human.

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