GRE阅读真题及答案(三).

　　在GRE阅读理解训练时应多进行做题练习并总结积累经验，不要盲目追求数量，提高GRE阅读能力不是一日之功，要打好“持久战”。下面是澳际小编为大家总结的一些GRE阅读真题，包括答案，希望能够帮助到大家。

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　　11.Certain extremely harmful bacteria found only in sewage are difficult to detect directly.Testing for E.coli，an easily detected and less harmful type of bacteria，in ocean water would be a reliable way of determining whether or not these more harmful bac-teria are present，since ocean water contains E.Coli only if the water is contaminated with sewage that contains the harmful bacteria.

　　Which of the following，if true，most seriously weakens the argument?

　　(A)There are many different strains of the E.coli bacteria，and only some of these strains are harmful.

　　(B)Some types of bacteria found in sewage are neither disease-causing nor difficult to detect directly.

　　(C)Some of the types of bacteria found in sewage along with E.coli are not harmful to people unless the bacteria are ingested in large quantities.

　　(D)E.coli dies out much more quickly than some of the more harmful bacteria found in sewage and then can no longer be easily detected.

　　(E)Some of the types of bacteria found in sewage along with E.coli reproduce at a slower rate than E.coli.

　　12.The organizers of tomorrow&aposs outdoor concert announced that it will go on tomorrow on schedule unless bad weather is forecast or too few advance tickets are sold.If the concert is canceled，runds will be made to ticket holders.Since some ticket holders have already been issued runds even though more than enough advance tickets were sold，it must be the case that bad weather is forecast.

　　Which of the following is an error of reasoning con-tained in the argument?

　　(A)It proceeds as if a condition，which by itself is enough to guarantee a certain result，is the only condition under which that result would occur.

　　(B)It bases a conclusion that is known to require two conditions on evidence that bears on only one of those conditions.

　　(C)It explains one event as being caused by another event，even though both events must actually have been caused by some third，unidentified event.

　　(D)It treats evidence for the absence of one condi-tion under which a circumstance would occur as conclusive evidence that that circumstance will not occur.

　　(E)Evidence given to support the conclusion actually undermines it.

　　13.Although the prevailing supposition has been that it is too hot for microorganisms to survive deep below the Earth&aposs 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&apos argument depends on which of the fol-lowing assumptions?

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

　　(B)No holes have been drilled into the Earth&aposs surface to a distance deeper than 1.74 miles

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

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

　　(E)The temperature at the bottom of the holes drilled was not significantly hotter than that of the hottest spots on the Earth&aposs surface.

　　14.For 20 years all applicants for jobs as technicians at EquipCorp were required to demonstrate that they could operate and repair the machinery that was central to EquipCorp&aposs manufacturing business.Now，however，that particular machinery is obsolete，and very different machinery fills the central role.Therore，the old requirement is no longer a usul method for evaluating whether applicants for jobs as technicians at EquipCorp have the skills necessary for the job.

　　Which of the following，if true，most strengthens the argument?

　　(A)The machinery that is now obsolete was used by a large number of manufacturing companies bore it became obsolete.

　　(B)Among the people already holding jobs as tech-nicians at Equip Corp，those who are most skillful at operating the new machinery had been some of the least skillful at operating the old machinery

　　(C)Most people applying for jobs as technicians today have much broader skills than did people applying for jobs as technicians 20 years ago.

　　(D)The skills required to operate and repair the obsolete machinery are usul in operating and maintaining many other types of machinery at EquipCorp that are not obsolete.

　　(E)Much of the machinery that EquipCorp now uses in manufacturing is very likely to become obsolete within the next 20 years.

　　参考答案：　D　A　C　B

　　对待以上GRE阅读真题，各位考生可以多做几遍，首先可以利用第一遍做题寻找自己的问题，是阅读速度不快，还是阅读速度上去了无法理解文章，还是定位不好，还是其他问题。根据自己的问题再下一步做大量的针对性的工作。