We can infer from the first two paragraphs that the industrialists disregard environmental protection chiefly because ________.

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• 1It can be concluded from the passage that the immune systems of animals ________.

  A.can be weakened by conditioning

  B.can be suppressed by drug injections

  C.can be affected by frequent doses of saccharin

  D.can be altered by electric shocks

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• 2The passage tells us that the most probable reason for the death of the mice in Ader’s experiment was that ________.

  A.they had been weakened psychologically by the saccharin

  B.the sweetener was poisonous to them

  C.their immune systems had been altered by the mind

  D.they had taken too much sweetener during earlier conditioning

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• 3The reason why the mice in Ader’s experiment avoided saccharin was that ________.

  A.they disliked its taste

  B.it affected their immune systems

  C.it led to stomach pains

  D.they associated it with stomachaches

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• 4According to the passage, the experience of helplessness causes rats to ________.

  A.try to control unpleasant stimuli

  B.turn off the electricity

  C.behave passively in controllable situations

  D.become abnormally suspicious

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• 5Laudenslager’s experiment showed that the immune system of those rats who could turn off the electricity ________.

  A.was strengthened

  B.was not affected

  C.was altered

  D.was weakened

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• 6The main task now facing ecologists, environmental activists and conservationists is ________.

  A.to prevent pollution by legislation, economic incentives and persuasion

  B.to arouse public awareness of the importance of environmental protection

  C.to take radical measures to control environmental pollution

  D.to improve the quality of life by enforcing environmental standards

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• 7The word “tunnel-visioned (Line 2, Par

  A.4) most probably means “________”.A.narrow-minded

  B.blind to the facts

  C.short-sighted

  D.able to see only one aspect

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• 8Which of the following, according to the author, should play the leading role in the solution of environmental problems、

  A.Legislation and government intervention.

  B.The industry’s understanding and support.

  C.The efforts of environmental health professionals.

  D.The cooperation of ecologists, environmental activists and conservationists.

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• 9Which of the following is true according to the last paragraph、

  A.Efforts should be exerted on pollution prevention instead of on remedial measures.

  B.More money should be spent in order to stop pollution.

  C.Ordinary citizens have no access to technical information on pollution.

  D.Environmental degradation will be stopped by the end of this decad

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• 10The chief concern of British universities is ________.

  A.how to tackle their present financial difficulty

  B.how to expand the enrollment to meet the needs of enterprises

  C.how to improve their educational technology

  D.how to put an end to the current tendency of quality deterioration

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