The deep-sea listening system makes use of ________.

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• 1The underwater listening system was originally designed ________.

  A.to trace and locate enemy vessels

  B.to monitor deep-sea volcanic eruptions

  C.to study the movement of ocean currents

  D.to replace the global radio communications network

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• 2The passage is chiefly about ________.

  A.an effort to protect an endangered marine species

  B.the civilian use of a military detection system

  C.the exposure of a U.S. Navy top-secret weapon

  D.a new way to look into the behavior of blue whales

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• 3What is the passage mainly about、

  A.The process of gradual memory loss.

  B.The causes of absent-mindedness.

  C.The impact of the environment on memory.

  D.A way if encoding and recalling.

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• 4What do we learn from the last paragraph、

  A.If we focus our attention on one thing, we might forget another.

  B.Memory depends to a certain extent on the environment.

  C.Repetition helps improve our memory.

  D.If we keep forgetting things, we’d better return to where we wer

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• 5A note in the pocket can hardly serve as a reminder because ________.

  A.it will easily get lost

  B.it’s not clear enough for you to read

  C.it’s out of your sight

  D.it might get mixed up with other things

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• 6It can be inferred from the passage that ________.

  A.new radio devices should be developed for tracking the endangered blue whales

  B.blue whales are no longer endangered with the use of the new listening system

  C.opinions differ as to whether civilian scientists should be allowed to use military technology

  D.military technology has great potential in civilian use

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• 7Which of the following is true about the U.S. Navy underwater listening network、

  A.It is now partly accessible to civilian scientists.

  B.It has been replaced by a more advanced system.

  C.It became useless to the military after the cold war.

  D.It is indispensable in protecting endangered species.

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• 8The word “spas” (Line 3, Par

  A.1) most probably refers to ________.A.sports activities

  B.places for physical exercise

  C.recreation centers

  D.athletic training programs

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• 9Early fitness spas were intended mainly for ________.

  A.the promotion of aerobic exercise

  B.endurance and muscular development

  C.the improvement of women’s figures

  D.better performance in aerobic dancing

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• 10What was the attitude of doctors towards weight training in health improvement、

  A.Positive.

  B.Indifferent.

  C.Negative.

  D.Cautious.

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