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  3. The idea that some groups of people may be more intelligent than others is one of those hypotheses that dare not speak its name.

The idea that some groups of people may be more intelligent than others is one of those hypotheses that dare not speak its name.

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问题     The idea that some groups of people may be more intelligent than others is one of those hypotheses that dare not speak its name. But Gregory Cochran is【C1】______to say it anyway. He is that【C2】______bird, a scientist who works independently【C3】______any institution. He helped popularize the idea that some diseases not【C4】______thought to have a bacterial cause were actually infections, which aroused much controversy when it was first suggested.
    【C5】______he, however, might tremble at the【C6】______of what he is about to do. Together with another two scientists, he is publishing a paper which not only【C7】______that one group of humanity is more intelligent than the others, but explains the process that has brought this about. The group in【C8】______is a particular people originated from central Europe. The process is natural selection.
    This group generally does well in IQ test, 【C9】______12-15 points above the【C10】______value of 100, and have contributed【C11】______to the intellectual and cultural life of the West, as the【C12】______of their elites, including several world-renowned scientists, 【C13】______They also suffer more often than most people from a number of nasty genetic diseases, such as breast cancer. These facts, 【C14】______, have previously been thought unrelated. The former has been【C15】______to social effects, such as a strong tradition of【C16】______education. The latter was seen as a(an) 【C17】______of genetic isolation. Dr. Cochran suggests that the intelligence and diseases are intimately【C18】______. His argument is that the unusual history of these people has【C19】______them to unique evolutionary pressures that have resulted in this【C20】______state of affairs.
【C11】
选项 A、unconsciously
B、disproportionately
C、indefinitely
D、unaccountably
答案B
解析 本题考查语义衔接。本题目选择副词，在句子中充当状语。This group generallydo well in IQ tests，scoring 12—15 points above the mean value of 100，and have contributed to theintellectual and cultural life of the West．大意是“这个群体在智商测试中成绩很好，比100分的平均分多得12分到15分。这个群体为西方的学术和文化做出的贡献是……”，选项B“不成比例地；不相称地，比例太大(或太小)地”，与题意相符合。选项A．unconsciously无意识地；C．indefinitely不确定地；D．unaccountably不能说明的；不可理解的。这三项都不符合题意。故选B。
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