2015年考研初試已經(jīng)告一段落，目前，部分考研真題已經(jīng)公布，為了方便考生查看真題。唯學網(wǎng)考研欄目小編會時刻關注2015考研初試情況，第一時間為考生提供考研真題答案及答案。下面是小編為大家整理的2015年考研英語一真題，以供考生參考。

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 "related" 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 James Fowler, professor of medical genetics at UC San Diego, says, "Most people do not even 7 their fourth cousins but somehow manage to select as friends the people who 8 our kin."

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 Perhaps, 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 "functional kinship" of being friends with 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.

The findings do not simply corroborate people's 18 to befriend those of similar 19 backgrounds, say the researchers. Though all the subjects were drawn from a population of European extraction, care was taken to 20 that all subjects, friends and strangers were taken from the same population. The team also controlled the data to check ancestry of subjects.

Section II Reading Comprehension?

1、What

2、Concluded

3、On

4、Compared

5、Samples

6、Insignificant

7、Know

8、Resemble

9、Also

10、Perhaps

11、To

12、Drive

13、Ratherthan

14、Benefits

15、Faster

16、understand

17、Contributory

18、Tendency

19、Ethnic

20、see