Which of the following statements about Flowers and Yeo is true、

试卷相关题目

• 1The last paragraph tells us, among other things, that

  A.the lidar detector needs improvement.

  B.many airlines are interested in the system.

  C.passengers often forget to fasten their seatbelts.

  D.the lidar detector can be used in a wide range of areas.

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• 2We can infer from the fifth paragraph that

  A.the lidar detector can successfully forecast turbulence.

  B.researchers are not sure about the effectiveness of the lidar detector.

  C.passenger planes will be used in further experiments.

  D.no more test flights are needed.

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• 3The turbulence detector can tell the severity of the turbulence by measuring

  A.the speed of the plane.

  B.the speed of the light.

  C.the number of particles in the air.

  D.the changes of the particles’ speed.

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• 4In December 1997, a United Airlines flight hit unexpected rough air,

  A.causing a lot of damage to the plane.

  B.throwing its passengers out of the cabin.

  C.resulting in heavy casualties.

  D.forcing the pilot to make an emergency landing.

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• 5What does “clear-air turbulence” probably mean、 (Paragraph 1)

  A.A not very rough storm.

  B.Unexpected disturbed air.

  C.A kind of visible storm.

  D.A storm over mountain ridges.

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• 6Flowers and Yeo have started a programme

  A.to find ways to prevent water pollution.

  B.to identify genes that promote growth in salty soil.

  C.to breed rice plants that taste salty.

  D.to find ways to remove excessive salt from soil.

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• 7Which of the following is NOT mentioned as a cause of the problem discussed in the passage、

  A.Natural barriers to sea water have been destroyed.

  B.The water table has gone down after droughts.

  C.Sea level has been continuously rising.

  D.Evaporation of water leaves salt behind.

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• 8The word “affect” in Paragraph 6 could be best replaced by

  A.“influence”

  B.“effect”

  C.“stop”

  D.“present”

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• 9The attitude of the author towards the research project is

  A.positive

  B.negative.

  C.suspicious

  D.indifferent.

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