The helicopter a light plane and both pilots were killed.

试卷相关题目

• 1As soon as the boy was able to earn his own living he ________ his parents’ strict rules.

  A.defied

  B.refuted

  C.excluded

  D.vetoed

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• 2He ________ his head, wondering how to solve the problem.

  A.scrapped

  B.screwed

  C.scraped

  D.scratched

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• 3All the students have to ________ to the rules and regulations of the school.

  A.confirm

  B.confront

  C.confine

  D.conform

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• 4The Japanese scientists have found that scents ________ efficiency and reduce stress among office workers.

  A.enhance

  B.amplify

  C.foster

  D.magnify

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• 5Small farms and the lack of modern technology have ________ agricultural production.

  A.blundered

  B.tangled

  C.bewildered

  D.hampered

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• 6To ________ is to save and protect, to leave what we ourselves enjoy in such good condition that others may also share the enjoyment.

  A.conserve

  B.conceive

  C.convert

  D.contrive

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• 7Put on dark glasses or the sun will ________ you and you won’t be able to see.

  A.discern

  B.distort

  C.distract

  D.dazzle

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• 8In ________ times human beings did not travel for pleasure but to find a more favourable climate.

  A.prime

  B.primitive

  C.primary

  D.preliminary

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• 9A new study on birds’ sleep has revealed that ____________.

  A.birds can control their half-brain sleep consciously

  B.birds seldom sleep with the whole of their brain at rest

  C.half-brain sleep is found in a wide variety of birds

  D.half-brain sleep is characterized by slow brain waves

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• 10According to the passage, birds often half sleep because ______________.

  A.they have to constantly keep an eye on their companions

  B.the two halves of their brain are differently structured

  C.they have to watch out for possible attacks

  D.their brain hemisphere take turns to rest

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