Passage 2
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__1__to say it anyway. He is that __2__bird, a scientist who works independently__3__any institution. He helped popularize the idea that some diseases not__4__thought to have a bacterial cause were actually infections, which aroused much controversy when it was first suggested.
__5__he, however, might tremble at the__6__of what he is about to do. Together with another two scientists, he is publishing a paper which not only__7__that one group of humanity is more intelligent than the others, but explains the process that has brought this about. The group in question are a particular people originated from central Europe. The process is natural selection.
This group generally do well in IQ test, scoring 12-15 points above the__8__value of 100, and have contributed__9__to the intellectual and cultural life of the West, as the careers of their elites, including several world-renowned scientists, __10__hey also suffer more often than most people from a number of nasty genetic diseases, such as breast cancer. These facts, __11__ave previously been thought unrelated. The former has been__12__social effects, such as a strong tradition of__13__ucation. The latter was seen as a consequence genetic isolation. Dr. Cochran suggests that the intelligence and diseases are intimately__14__is argument is that the unusual history of these people has subjected to unique evolutionary pressures that have resulted in this__15__ate of affairs.
1. A. selected B. prepared C. obliged D. pleased
2. A. unique B. particular C. special D. rare
3. A. of B. with C. in D. against
4. A. subsequently B. presently C. previously D. lately
5. A. Only B. So C. Even D. Hence
6. A. thought B. sight C. cost D. risk
7. A. advises B. suggests C. protests D. objects
8. A. normal B. common C. mean D. total
9. A. unconsciously B. disproportionately C. indefinitely D. unaccountably
10. A. affirm B. witness C. observe D. approve
11. A. moreover B. therefore C. however D. meanwhile
12. A. given up B. got over C. carried on D. put down
13. A. assessing B. supervising C. administering D. valuing
14. A. linked B. integrated C. woven D. combined
15. A. paradoxical B. incompatible C. inevitable D. continuous
上一页 [1] [2] [3] [4] [5] 下一页
