chimps seem to show a much higher resistance than humans to HIV, the virus that causes AIDS. Indeed, their use as experimental animals in AIDS research has declined because they are so resistant. 5．By sequencing the chimp genome and pinpointing (找到) the place where the chimpanzee DNA sequence differs from that of humans, scientists hope to be able to discover which part of the genetic code gives chimps their increased resistance to some diseases. This, they hope, will allow them to develop new and more effective treatments for the human forms of these diseases. Such treatments could include the production of new drugs or even the alteration (改变) of the human genetic sequence. The recently completed human genome sequencing project has shown that such an effort is now well within our reach.

参考答案： B     答案解析： This, they hope, will allow them to develop new and more effective treatments for the human forms of these diseases. 说明这些研究就是为了找到一些更有效地治疗人类疾病的方法。
1The discovery of the genetic code of chimps will be helpful to
 A.healthier lifestyle  B.some human disease treatments  C.some diseases  D.human survival  E.human genomes  F.key areas  
参考答案： E     答案解析： the human and chimpanzee genomes (基因组) match by over 98%.第一句就已经说了，人类和黑猩猩之间超过98%的基因组是匹配的，本文一直都在讲黑猩猩与人类的关系，以及对人类的影响。
2There is a difference of less than 2% between the chimp and
 A.healthier lifestyle  B.some human disease treatments  C.some diseases  D.human survival  E.human genomes  F.key areas  
参考答案： C     答案解析： 第五段主要强调了通过对黑猩猩基因组的研究，可以发现很多治疗人类疾病的有效方法
3Scientists suspect that genes play a significant role in protecting chimps from getting
 A.healthier lifestyle  B.some human disease treatments  C.some diseases  D.human survival  E.human genomes  F.key areas  
参考答案： B     答案解析： In particular, chimps are much more resistant to a number of major diseases.一些重大的疾病，包括HIV
4Paragraph 3
 A.Genetic differences between chimps and  B.Reasons for HIV resistance  C.Implications of chimpanzee extinction for humans  D.Effective AIDS treatment  E.Genetic similarities between chimps and humans  F.Chimps' resistance to HIV  
参考答案： F     答案解析： chimps seem to show a much higher resistance than humans to HIV, the virus that causes AIDS.这句话可以看出黑猩猩比人类地址HIV更具有优势
5Paragraph 4
 A.Genetic differences between chimps and  B.Reasons for HIV resistance  C.Implications of chimpanzee extinction for humans  D.Effective AIDS treatment  E.Genetic similarities between chimps and humans  F.Chimps' resistance to HIV  
参考答案： D     答案解析： 黑猩猩的灭绝，很可能影响人类的生存。
6Chimpanzee extinction may affect
 A.healthier lifestyle  B.some human disease treatments  C.some diseases  D.human survival  E.human genomes  F.key areas  
参考答案： E     答案解析： 1975年国王和艾伦·威尔逊发现人类和黑猩猩基因组匹配98%以上。所以选择E，黑猩猩和人类的基因有相似之处
7Paragraph 2
 A.Genetic differences between chimps and  B.Reasons for HIV resistance  C.Implications of chimpanzee extinction for humans  D.Effective AIDS treatment  E.Genetic similarities between chimps and humans  F.Chimps' resistance to HIV  

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