2008年全国硕士研究生入学统一考试英语试题da-an

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Section I        Use of English
Directions:
Read the following text. Choose the best word(s) for each numbered blank and mark A, B, C or D on ANSWER SHEET 1. (10 points)
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 大1家 to say it anyway. He is that 大2家 bird, a scientist who works independently 大3家 any institution. He helped popularize the idea that some diseases not 大4家 thought to have a bacterial cause were actually infections, which aroused much controversy when it was first suggested.
大5家 he, however, might tremble at the 大6家 of what he is about to do. Together with another two scientists, he is publishing a paper which not only 大7家 that one group of humanity is more intelligent than the others, but explains the process that has brought this about. The group in 大8家 are a particular people originated from central Europe. The process is natural selection.