How can you understand the underlined sentence in the last paragraph、

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• 1To avoid repeating the mistakes of our forefathers, the author suggests that ________.

  A.we plant more trees

  B.natural science be taught to everybody

  C.environmental education be given to everybody

  D.we return to nature

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• 2According to the author, the greatest mistake of our forefathers was that ________.

  A.they had no idea about scientific forestry

  B.they had little or no sense of environmental protection

  C.they were not aware of the significance of nature study

  D.they had no idea of how to make good use of raw materials

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• 3The author’s attitude towards the use of natural resources is ________.

  A.positive

  B.uninterested

  C.optimistic

  D.critical

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• 4From the passage we get to know________.

  A.there is more water vapour in the air in the tropics than in cold polar regions

  B.there is more water vapour in the air in cold polar regions than in the tropics

  C.it gets more rain in the tropics than in cold polar regions because there is less vapour

  D.the amount of water vapour in the air depends on how often it rains

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• 5Whether water vapour can be seen or not depends on ________.

  A.how much water is evaporated

  B.how good your eyes are

  C.in which way water is evaporated

  D.climate or weather

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• 6In his book, The Skeptical Environmentalist, what is Lomborg’s main argument、

  A.Our planet is in bad shape.

  B.The world’s environment is improving.

  C.The total amount of forests in the world is not declining.

  D.Conservation efforts have been successful.

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• 7What is Lomborg’s main accusation of environmentalists、

  A.They scared people into making donations.

  B.They overturned our basic assumptions about the world’s environment.

  C.They changed their behavior toward the environment.

  D.They only told people bad news about the environment.

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• 8The underlined word “depleting” in Paragraph 5 is closest in meaning to “________”.

  A.reducing

  B.limiting

  C.expanding

  D.accelerating

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• 9According to the passage, which of the following statements indicates positive aspects of the environment、

  A.The total area of forests in the world has increased significantly.

  B.The effects of global warming are not as bad as first expected.

  C.It appears that the bald eagle will now survive.

  D.C.It appears that the bald eagle will now surviv

  E.D.In the last 50 years the number of whales has increased.

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