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2015年考研英语一真题及答案解析

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  • 试卷类型:历年真题
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2015年考研英语一真题及答案解析,本套试卷是2015年考研英语一真题,有详细答案解析。

题型:

  • Cloze
  • Reading Comprehension
  • Choice collocation
  • Translation
  • Writing
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历年真题

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1

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)__1,932 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 exists in smell 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 together that _(12)_us in choosing genetically similar friends_(13)_”functional Kinship” of being friends with_(14)_! One of the remarkable findings of the study was the similar genes seem to be evolution_(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 explain 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. 

1__________

  • A.when
  • B.why
  • C.how
  • D.what
2
2
  • A.defended
  • B.concluded
  • C.withdrawn
  • D.advised
3
3
  • A.for
  • B.with
  • C.on
  • D.by
4
4
  • A.compared
  • B.sought
  • C.separated
  • D.connected
5
5
  • A.tests
  • B.objects
  • C.examples
  • D.samples
6
6
  • A.insignificant
  • B.unexpected
  • C.incredible
  • D.unbelievable
7
7
  • A.visit
  • B.miss
  • C.seek
  • D.know
8
8
  • A.resemble
  • B.influence
  • C.favor
  • D.surpass
9
9
  • A.again
  • B.also
  • C.instead
  • D.thus
10
10
  • A.Meanwhile
  • B.Furthermore
  • C.Likewise
  • D.Perhaps
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