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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 the ANSWER SHEET. (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 co-author of the study 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 team also developed a "friendship score" which can 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 "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.

1、_____

A.what

B.why

C.how

D.when

正確答案是：A

2、_____

A.defended

B.concluded

C.withdrawn

D.advised

正確答案是：B

3、_____

A.for

B.with

C.by

D.on

正確答案是：D

4、_____

A.separated

B.sought

C.compared

D.connected

正確答案是：C

5、_____

A.tests

B.objects

C.samples

D.examples

正確答案是：C

6、_____

A.insignificant

B.unexpected

C.unreliable

D.incredible

正確答案是：A

7、_____

A.visit

B.miss

C.know

D.seek

正確答案是：C

8、_____

A.surpass

B.influence

C.favor

D.resemble

正確答案是：D

9、_____

A.again

B.also

C.instead

D.thus

正確答案是：B

10、_____

A.Meanwhile

B.Furthermore

C.Likewise

D.Perhaps

正確答案是：D

11、_____

A.about

B.to

C.from

D.like

正確答案是：B

12、_____

A.limit

B.observe

C.confuse

D.drive

正確答案是：D

13、_____

A.according to

B.rather than

C.regardless of

D.along with

正確答案是：B

14、_____

A.chances

B.responses

C.benefits

D.missions

正確答案是：C

15、_____

A.faster

B.slower

C.later

D.earlier

正確答案是：A

16、_____

A.forecast

B.remember

C.express

D.understand

正確答案是：D

17、_____

A.unpredictable

B.contributory

C.controllable

D.disruptive

正確答案是：B

18、_____

A.tendency

B.decision

C.arrangement

D.endeavor

正確答案是：A

19、_____

A.political

B.religious

C.ethnic

D.economic

正確答案是：C

20、_____

A.see

B.show

C.prove

D.tell

正確答案是：A