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GRE阅读逻辑题训练(71)

2017-04-04 09:15:00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(71)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!

  Over a period of several months, researchers attached small lights to the backs of wetas—flightless insects native to New Zealand—enabling researchers for the first time to make comprehensive observations of the insects' nighttime activities. Thus, since wetas forage only at night, the researchers' observations will significantly improve knowledge of the normal foraging habits of wetas.

  Which of the following is an assumption on which the argument depends?

  A:Researchers were interested only in observing the wetas' foraging habits and so did not keep track of other types of behavior.

  B:No pattern of behavior that is exhibited by wetas during the nighttime is also exhibited by wetas during the daytime.

  C:Attaching the small lights to the wetas' backs did not greatly alter the wetas' normal night-time foraging habits.

  D:Wetas typically forage more frequently during the months in which the researchers studied them than they do at other times.

  E:The researchers did not use other observational techniques to supplement their method of using small lights to track the nighttime behavior of wetas.

  最佳解析:本题问assumption,则因果关系为:因为放置光标在weta上,所以能够增加对weta夜间捕食习惯的了解,(C)涉及原因关键attach small lights并且带有否定词,去掉否定词则(C)意思为:放置小光标会显著改变weta的夜间捕食行为,则反对上述推理,所以(C)是上述推理成立的一个必要条件。(C)is correct。

  答案:C

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