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  3. Few scientific fields are as full of risk as that of research into human intelligence. The two questions that【1】over and over a

Few scientific fields are as full of risk as that of research into human intelligence. The two questions that【1】over and over a

admin2011-03-11  32
问题     Few scientific fields are as full of risk as that of research into human intelligence.  The two questions that【1】over and over again are "is it a result of nature or nurture?" and "does race make a difference?"
    Making【2】comments about the second question can be a【3】move, as James Watson, a co-discoverer of DNA structure, recently found. He suggested that he was "【4】about the prospect of Africa"【5】"all our social policies are based on the fact that their intelligence is the same as ours (white people) 【6】all the testing says not really". Such【7】are not merely【8】, they are scientifically weird. If the term race has any useful scientific meaning, then Africa, the continent where modern【9】began, is most racially diverse. The resulting【10】forced Dr Watson to leave his laboratory.
    【11】, the study of【12】between intelligence and genetics has some wiser practitioners. One of them, Terrie Moffitt, of King’s College, has just【13】a project【14】the relative importance of nature and nurture. Dr Moffitt’s team【15】the effect on intelligence of breastfeeding, but in a genetic context. Previous studies have shown that breastfed children are more intelligent,【16】about six IQ points, than those given baby formulas.
    The team, however,【17】the involvement of a gene called FADS2, which comes in two varieties, known as C and G. The researchers【18】if these two varieties【19】differently with breast milk.【20】on data two groups of people, they found that the intelligence increase associated with breastfeeding only happened to people having inherited at least one copy of the C variety. The effect did not depend on the social classes or IQs of the parents.
选项 A、offensive
B、confusing
C、promising
D、objective
答案A
解析 解答本题要抓住两个关键线索。本句是对第二段前几句内容的小结，所以填入的形容词表达的意思要和前文一致；另一方面，本句的结构是...not merely...，...，这显然是个递进结构的句子，所以填入的词应体现出和“在科学上诡异的”的递进关系；由此可知，只有A选项符合文意，本句意为：这种言论不仅仅是激进的，在科学上更是诡异的。
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