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 ___8___ are a particular people originated from central Europe. The process is natural selection.

　　This group generally do well in IQ test, ___9___ 12-15 points above the ___10___ value of 100, and have contributed ___11___ to the intellectual and cultural life of the West, as the ___12___ of their elites, including several world-renowned scientists, ___13___. They also suffer more often than most people from a number of nasty genetic diseases, such as breast cancer. These facts, ___14___, have previously been thought unrelated. The former has been ___15___ to social effects, such as a strong tradition of ___16___ education. The latter was seen as a (an) ___17___ of genetic isolation. Dr. Cochran suggests that the intelligence and diseases are intimately ___18___. His argument is that the unusual history of these people has ___19___ them to unique evolutionary pressures that have resulted in this ___20___ state 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] progress [B] fact [C] need [D] question

　　9. [A] attaining [B] scoring [C] reaching [D] calculating

　　10. [A] normal [B] common [C] mean [D] total

　　11. [A] unconsciously [B] disproportionately [C] indefinitely [D] unaccountably

　　12. [A] missions [B] fortunes [C] interests [D] careers

　　13. [A] affirm [B] witness [C] observe [D] approve

　　14. [A] moreover [B] therefore [C] however [D] meanwhile

　　15. [A] given up [B] got over [C] carried on [D] put down

　　16. [A] assessing [B] supervising [C] administering [D] valuing

　　17. [A] development [B] origin [C] consequence [D] instrument

　　18. [A] linked [B] integrated [C] woven [D] combined

　　19. [A] limited [B] subjected [C] converted [D] directed

　　20. [A] paradoxical [B] incompatible [C] inevitable [D] continuous

　　答案

　　1. B2. D3. A4. C5. C

　　6. A7. B8. D9. B10. C

　　11. B12. D13. A14. C15. D

　　16. D17. C18. A19. B20. A

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