The reason why a desktop computer uses more energy than a laptop computer is that________.

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• 1When does a computer consume the most energy、

  A.When we let it remain idle.

  B.When we use it to do complex calculations.

  C.When we use it to type some documents and e-mail.

  D.When we use it for surfing the Internet.

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• 2Which of the following is NOT mentioned in the text that contributes to the different amount of energy a computer consumes、

  A.Whether it is a laptop or a desktop computer.

  B.What kind of work the computer is dealing with.

  C.The choice of how you use your computer.

  D.whether the computer systems are new.

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• 3If sleep mode goes wrong, what will probably happen to your computer、

  A.It will consume as little energy as possible.

  B.It is more likely to be damaged by a virus picked up from the Internet.

  C.It will have to be rebooted when used again.

  D.It has to be shut down and unplugged.

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• 4Which of the following is implied in the first two paragraphs、

  A.Frequent starting and stopping can damage a computer.

  B.A computer’s longevity depends more on the proper way you use it.

  C.A virus picked up from the Internet is likely to damage a computer.

  D.The more often you use a computer, the more smoothly it works.

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• 5Which is TRUE according to the passage、

  A.In America a self-cleaning paint was modeled on the lotus flower.

  B.Zimbabwe engineers learned from termites to create highly advanced heating systems.

  C.After the boxfish，many other ideas of new products are borrowed from nature.

  D.Nature is a good source to turn to for improving technology.

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• 6The clumsy-looking boxfish interested the scientists because of the following reasons EXCEPT that________.

  A.it swims using little energy

  B.being boxy, it looks quite like a car

  C.some engineers had researched on how to swim easily in the water

  D.it is a speedy swimmer

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• 7Why did top engineers in Germany go to the natural history museum、

  A.They wanted to pay a visit to the animals there because they were so lovely.

  B.They wanted to carry out a research of boxfish and dolphins.

  C.They wanted to search for a model to base on for building a more-efficient car.

  D.They wanted to study the science of survival.

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• 8We can infer all of the following from the passage EXCEPT ________.

  A.it is believed that the creation of the airplane might have originated from the bird flying in the sky

  B.the atmosphere on the earth cannot be transferred into the original idea

  C.dolphins and sharks may become the source of scientists，inventions or creations

  D.if you observe and explore nature，you may make great discoveries or become great inventors

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