2015研究生入学统一考试英语一试题答案+解析
Section 1 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)
Though not biologically related, friends are as fourth cousins, sharing about 1% of genes. That is 1 a study published from the University of California and Yale University in the Proceedings of the National Academy of Sciences, has 2 。 The study is a genome-wide analysis conducted 3 1932 unique subjects which 4 pairs of unrelated friends and unrelated strangers. The same people were used in both 5 。 While 1% may seem 6 , it is not so to a geneticist. As co-author of the study James Fowler, professor of medical genetics at UC San Diego says, 7 their fourth cousins but somehow manage to select as friends the people who 8 our kin.
The team also developed a predict who will be your friend based on their genes。
The study 9 found that the genes for smell were something shared in friends but not genes for immunity. Why this similarity in olfactory genes is difficult to explain, for now. 10 , as the team suggests, it draws us to similar environments but there is more 11 it. There could be many mechanisms working in tandem that 12 us in choosing genetically similar friends 13 than 14 ! One of the remarkable findings of the study was that the similar genes seem to be evolving 15 than other genes. Studying this could help 16 why human evolution picked pace in the last 30,000 years, with social environment being a major 17 factor。
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17、B contributory 本句意为：社会环境是最主要的一个因素。Contributory贡献，最佳。
18、A tendency 结合文章主旨，选择基因相似的人做朋友是普遍现象，tendency趋势倾向最符合。
19、C ethnic 同义替换，基因背景相似，种族的，民族的，最符合。
20、A see 本句意为：尽管所有的研究对象都取自欧洲血统，研究者也花心思确保了所有(用于比对的)朋友和陌生人也源自该血统中的同一支系。
Section Ⅱ Reading Comprehension Part A
Directions：Read the following four texts. Answer the questions after each text by choosing A, B, C or D. Mark your answers on ANSWER SHEET 1. (40 points) Text 1
King Juan Carlos of Spain once insisted kings don’t abdicate, they die in their sleep. But embarrassing scandals and the popularity of the republican left in the recent Euro-elections have forced him to eat his words and stand down. So, dies the Spanish crisis suggest that monarchy is seeing its last days? Does that