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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【B1】______to say it anyway. He is that【B2】______bird, a scientist who works independently【B3】______any institution. He helped popularize the idea that some diseases not【B4】______thought to have a bacterial cause were actually infections, which aroused much controversy when it was first suggested.
    【B5】______he, however, might tremble at the【B6】______of what he is about to do. Together with another two scientists, he is publishing a paper which not only【B7】______that one group of humanity is more intelligent than the others, but explains the process that has brought this about. The group in【B8】______are a particular people originated from central Europe. The process is natural selection.
    This group generally do well in IQ test,【B9】______12-15 points above the【B10】______value of 100, and have contributed【B11】______to the intellectual and cultural life of the West, as the【B12】______of their elites, including several world-renowned scientists,【B13】______. They also suffer more often than most people from a number of nasty genetic diseases, such as breast cancer. These facts,【B14】______, have previously been thought unrelated. The former has been【B15】______to social effects, such as a strong tradition of【B16】______education. The latter was seen as a(n)【B17】______of genetic isolation. Dr. Cochran suggests that the intelligence and diseases are intimately【B18】______. His argument is that the unusual history of these people has【B19】______them to unique evolutionary pressures that have resulted in this【B20】______state of affairs.
【B11】
选项 A、unconsciously
B、disproportionately
C、indefinitely
D、unaccountably
答案B
解析 考查副词辨析。此处意为“这一族群在智商测验中普遍得分较高，比平均值100分高12至15分，而且他们在西方的学术和文化方面做出了(与他们的人数) 的贡献”。根据题意，只有B．disproportionately“不成比例地，不相称地，比例太大(或太小地)”符合逻辑。unconsciously“无意识地”，indefinitely“不确定地”，unaccountably“不能说明地，不可理解地”，均在语义上解释不通。
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