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

试卷相关题目

• 1Which 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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• 2Flowers 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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• 3Which of the following statements about Flowers and Yeo is true、

  A.They are students at Sussex University.

  B.They are rice breeders.

  C.They are husband and wife

  D.They are colleagues at an institution of higher learning.

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• 4The 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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• 5We 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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• 6The attitude of the author towards the research project is

  A.positive

  B.negative.

  C.suspicious

  D.indifferent.

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