新GRE阅读练习题（25）

　　编辑点评： 新GRE阅读考试考察大家的方面较多，除了大家需要拥有一定的词汇量以外，还需大家在解题的时候能够迅速了解出题者的意图，这就需要大家充分发挥自己的逻辑理解能力和推理能力，大家可以利用下文的新GRE阅读短文练习进行练习。

　　In recent years, there has been a dramatic decline in the population of the shrike, a predatory bird that inhabits flat land, such as farms and pastures. Some ornithologists hypothesize that this decline is due to the introduction of new, more effective pesticides to control the insect species on which shrikes prey.

　　The answer to which of the following questions is NOT relevant to evaluating the ornithologists hypothesis?

　　Was there a decline in the shrike population before the new pesticides were first used?

　　Have shrike populations declined significantly in those habitats where the new pesticides have not been used?

　　Have the new pesticides more significantly reduced the population of insect species on which shrikes prey than did the pesticides previously used?

　　Are insects that have consumed the new pesti-cides more toxic to the shrikes that eat those insects than were insects that consumed the less effective pesticides?

　　Are the new pesticides considered by most people to be less harmful to the environment than the old pesticides were considered to be?

　　答案：E

　　以上的内容供大家练习，大家平时也要多做些阅读真题，相信日积月累，你的GRE阅读分数也会马上得到提高!