How do plants relate to solar energy、

试卷相关题目

• 1The robotic technology for surgeries on people has brought a handsome Medrobotics.

  A.Right

  B.Wrong

  C.Not mentioned

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• 2Zenati tested the robot on people after using it in pigs.

  A.Right

  B.Wrong

  C.Not mentioned

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• 3The application of a thin robotic snake makes heart surgeries less time-consuming.

  A.Right

  B.Wrong

  C.Not mentioned

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• 4Choset’s snake robots could make more movements than the ones others developed.

  A.Right

  B.Wrong

  C.Not mentioned

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• 5Choset didn’t begin developing his own snake robots until he started working Carnegie Mellon.

  A.Right

  B.Wrong

  C.Not mentioned

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• 6Scientists study how photosynthesis works because they want to_____.

  A.improve the efficiency of it.

  B.turn plant sugars to a new form of energy.

  C.get more sugars and starches from plants.

  D.make green plants a new source of energy.

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• 7Algae are able to use solar energy to produce hydrogen when_____.

  A.they are grown in narrow-necked bottles.

  B.there is no oxygen in the air.

  C.there is enough oxygen in the air.

  D.enough starches is stored.

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• 8Researchers find it difficult to make algae produce hydrogen efficiently because_____.

  A.it is hard to create an airfree environment.

  B.it is expensive to remove the sulfate from the environment.

  C.removing the sulfate slows down hydrogen production.

  D.the algae’s cells work slowly if there is no oxygen in the air.

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• 9What does Ghirardi say about algae、

  A.They can be a good energy source.

  B.They grow faster in a reactor.

  C.They will be planted everywhere.

  D.They are cheap to eat.

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• 10What is the main idea of this passage、

  A.Public lands play an important role in energy production.

  B.Public lands are one of the main sources of revenues.

  C.Public lands should be developed to ease energy shortage.

  D.Public lands store huge energy resources for further development.

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