2015考研英语：2015年研究生考试英语一试题(word版)及答案

2015年研究生考试英语一试题（word版）

2015年全国硕士研究生入学考试英语(课程)一试题

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)

We have more genes in common with people we pick to be our friends than with strangers.

Though not biologically related2015考研英语2015考研英语,friends are as "related" as fourth cousins2015考研英语, sharing about 1% of genes. That is 1 a study publishedfrom the University of

California and Yale University in theProceedings of the National Academy of Sciences, has 2 .

The study is a genome-wide analysis conducted 3 1932 unique subjects

which 4pairs 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 says2015考研英语, "Most people do not even 7their fourth cousins but somehow manage to select as friends the people who 8 our kin."

The team 9 developed a "friendship score" which can predict who will be your friend based on their genes.