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GRE阅读逻辑题训练(35)

2017-03-29 16:10:00来源:新东方在线整理

  为了帮助大家练习GRE阅读逻辑题,新东方在线GRE频道为大家带来GRE阅读逻辑题训练(35)一文,希望对大家GRE备考有所帮助。更多精彩尽请关注新东方在线GRE频道!

  The population of peregrine falcons declined rapidly during the 1950’s and reached an all-time low in the early 1970’s. The decline was attributed by scientists to the widespread use of the pesticide DDT in rural areas.

  Which of the following, if true, given the strongest support to the scientists’ claim?

  A:DDT was not generally in use in areas devoted to heavy industry.

  B:In the time since the use of DDT was banned in 1972, the population of peregrine has been steadily increasing.

  C:Peregrine falcons, like other birds of prey, abandon eggs that have fallen out of the nest, even if the eggs remain intact.

  D:Starlings, house sparrows, and blue jays-birds the peregrine falcon preys on-were not adversely affected by DDT in their habitats.

  E:Other birds of prey, such as the osprey, the bald eagle, and the brown pelican, are found in the same areas as is the peregrine falcon.

  最佳解析:

  本题推理为:“由游隼数目急剧下降,得到DDT是下降的原因”,而本题支持为“如果没有DDT,游隼数目就不下降”。如(B)选项在DDT禁止使用后,游隼数目稳定增加。所以(B)is correct。假设本身就是一种支持,在少数考题中GRE使用各种假设起到支持效果。

  答案:B

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  以上就是新东方在线GER频道为你带来的GRE阅读逻辑题训练(35),更多精彩敬请关注新东方在线GRE频道。

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