新GRE阅读练习题（29）

　　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。

　　Although the prevailing supposition has been that it is too hot for microorganisms to survive deep below the Earth s surface, some scientists argue that there are living communities of microorganisms there that have been cut off from surface life for millions of years.These scientists base their argument on the discovery of living microorganisms in samples of material that were taken from holes drilled as deep as 1.74 miles.

　　The scientists argument depends on which of the following assumptions?

　　The microorganisms brought up were of a species that is related to those previously known to science.

　　No holes have been drilled into the Earth s surface to a distance deeper than 1.74 miles

　　The microorganisms did not come from surface soil that came into contact with the drilling equipment.

　　The stratum from which the samples came has been below the surface of the Earth ever since the Earth came into existence.

　　The temperature at the bottom of the holes drilled was not significantly hotter than that of the hottest spots on the Earth s surface.

　　答案：C

　　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!