大全71七题错四个，明显是没理清文章脉络，望高人指点！

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1.The author is primarily concerned with
(A) showing that behavior is a more effective way of controlling bodily temperature than innate mechanisms
(B) criticizing researchers who will not discard their theories about the effects of microwave radiation on organisms
(C) demonstrating that effects of microwave radiation are different from those of other forms of radiation
(D) analyzing the mechanism by which an organism maintains its bodily temperature in a changing thermal environment
(E) discussing the importance of thermoreceptors in the control of the internal temperature of an organism
（A）本文并没有全文都在比较behavior和innate mechanism谁更有效；由于后两端没有出现 behavior反而大面积的使用了microwaves所以，microwaves是主题词的核心词汇； 这是第一段的主题。                                                      
（B）criticizing researchers？ 这是第二段的主题；                                                                                               （C）出现了核心词汇microwave并指出了microwaves与其他辐射比较在temperature regulation上的特点；                                                                                                                                                                            （D）没有出现核心词汇microwaves，此外本文并没有具体分析保持温度的mechanism；                                      （E）thermoreceptor是细节词汇，在主题句中是不应该出现细节词的。

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2.The author makes which of the following points about innate mechanisms for heat production?
I.They are governed by thermoreceptors inside the body of the organism rather than at the surface.
II.They are a less effective means of compensating for gross changes in temperature than behavioral strategies.
III.They are not affected by microwave radiation.
(A) I only
(B) I and II only
(C) I and III only
(D) II and III only   ( E) I, II, and III                                                                                                                                                 innate mechanism 首先出现在第一段，定位“the other being innate (reflexive) mechanisms of heat production and heat loss. Human beings rely primarily on the first to provide a hospitable thermal microclimate (microclimate: n.[气]小气候(指森林、城市、洞穴等局部地区的气候))for themselves, in which the transfer of heat between the body and the environment is accomplished with minimal involvement of innate mechanisms of heat production and loss.”  因此确定（II）是正确的。其次定位thermoreceptor，定位“The organism can also respond to changes in the temperature of the body core, as is the case during exercise; but such responses result from the direct stimulation of thermoreceptors distributed widely within the central nervous system”   因此I是正确的。此外，真个第三段都在说microwave对temperature regulation之间的关系，因此III不对。

pterosaur

3.Which of the following would be the most logical topic for the author to take up (take up: 继续) in the paragraph following the final paragraph of the selection?
(A) A suggestion for new research to be done on the effects of microwaves on animals and human beings
(B) An analysis of the differences between microwave radiation
(C) A proposal that the use of microwave radiation be prohibited because it is dangerous
(D) A survey of the literature on the effects of microwave radiation on human beings
(E) A discussion of the strategies used by various species to control hyperthermia
本文的第一段指出temperature由两种反应控制，behavior 和 innate mechanism，第二段指出一些研究上的错误，以及为什么。第三段说microwave对temperature regulation的影响，并详细阐述了其原理，所以后续肯定是这个发现的继续研究和利用。（B）还是在说第二段的东西；（C）not conform to the authur's attitude;（D）完全的无关项；（E）这是第一段之前的内容。

pterosaur

5.The author implies that the proponents of the theory that microwave radiation acts on organisms in the same way as other forms of radiation based their conclusions primarily on
(A) laboratory research
(B) unfounded assumption
(C) control group surveys
(D) deductive reasoning
(E) causal investigation      
“until recently it was assumed”,  assumed!!!

pterosaur

6.The tone of the passage can best be described as
(A) genial and conversational
(B) alarmed and disparaging
(C) facetious and cynical
(D) scholarly and noncommittal (noncommittal: adj.不明朗的, 不承担义务的)
(E) scholarly and concerned
很明显这是一偏科技类的文章，首选 scholarly, (D)选项的noncommittal明显的没有concerned更贴近原文。

pterosaur

[tr][td=4,1,288]7.The author is primarily concerned with[/td][td=72][/td][td=72][/td][td=72][/td][/tr][tr][td=5,1](A) pointing out weaknesses in a popular scientific theory[/td][td][/td][td][/td][/tr][tr][td=6,1](B) developing a hypothesis to explain a scientific phenomenon[/td][td][/td][/tr][tr][td=6,1](C) reporting on new research on the effects of microwave radiation[/td][td][/td][/tr][tr][td=5,1](D) criticizing the research methods of earlier investigators[/td][td][/td][td][/td][/tr][tr][td=7,1](E) clarifying ambiguities in the terminology used to describe a phenomenonv [/td][/tr]

（B）hypothesis，作者没有提出先到假设；
 (C)  没有 new research
 (D)  not only criticizing the research, 批评是为了阐述；
（E）terminology？