Whooping cranes are native to__________.

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• 1Whooping cranes migrate in winter to__________.

  A.find warmth and food

  B.raise baby whooping cranes

  C.get human help

  D.lay eggs

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• 2Why didn't NASA scientists identify the problem before the orbiter left for Mars、

  A.They didn't know the English system.

  B.They were sure of the success of the trip.

  C.They didn't get enough research funding.

  D.They were tired from working long hours.

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• 3What caused the orbiter's problem、

  A.Scientists used wrong guidelines of mathematics.

  B.Scientists used wrong building materials.

  C.Scientists used different operating systems.

  D.Scientists used different measurement systems.

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• 4When did the orbiter's problem begin、

  A.Right after it left for Mars.

  B.When it got near Mars.

  C.Right after it landed on Mars.

  D.When it returned to Earth.

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• 5How long did it take the orbiter to get close to mars、

  A.One year.

  B.Less than one year.

  C.About two and a half year.

  D.More than three years.

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• 6Operation Migration aims to__________.

  A.teach adult cranes how to fly

  B.lead young cranes on their first trip south

  C.breed cranes in special parks

  D.transport cranes to the North

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• 7The distance covered by the young whooping cranes on their trips south is__________.

  A.120 miles

  B.1,200 miles

  C.1,931 miles

  D.2, 000 miles

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• 8If Operation Migration is successful, whooping cranes will __________.

  A.follow airplanes south every year

  B.live in Canada all year round

  C.learn to migrate on their own

  D.be unable to fly back

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• 9请在第______填上正确答案.

  A.The device could be used to take a picture of your body each week, then compare it with previous images.

  B.That is going to be the difficult part.

  C.The cut could then be treated instantly so avoiding possible complications.

  D.Experts are also working on a "digital doctor", completing it with a comforting bedside manner.

  E.Instead of relying on hi-tech hospitals, the emphasis is shifted to the home and easy-to-use gadgets.

  F.A toothbrush that checks blood sugar and bacteria while you brush is currently in development in USA .

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• 10请在第______填上正确答案.

  A.The device could be used to take a picture of your body each week, then compare it with previous images.

  B.That is going to be the difficult part.

  C.The cut could then be treated instantly so avoiding possible complications.

  D.Experts are also working on a "digital doctor", completing it with a comforting bedside manner.

  E.Instead of relying on hi-tech hospitals, the emphasis is shifted to the home and easy-to-use gadgets.

  F.A toothbrush that checks blood sugar and bacteria while you brush is currently in development in USA .

  开始考试点击查看答案