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    2015年考研英语一真题及答案

    杰克陈

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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 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 Nat
    ional Academy of Sciences,
    has__(2)_.
    The study is a genome-wide analysis conducted _(3)__1,932 u
    nique 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 F
    owler, 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 wo
    rking together that
    _(12)_us in choosing genetically similar friends_(13)_”f
    unctional 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 environmen
    t being a
    major_(17)_factor.
    The findings do not simply explain people’s_(18)_to befrie
    nd those of
    similar_(19)_backgrounds, say the researchers. Though al
    l 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
    【答案】[D] what
    【解析】该题考查的是语法知识。根据句子结构和选项的特点,可以判断出空格处应填
    从属连词引导从句;再根据句子的内容,可以看出该从句是一项研究的相关内容(what),不
    是指研究的时间(when), 原因(why)和方式(how),因此,该题的答案为 what。
    2. [A] defended [B] concluded [C] withdrawn [D] advised
    2015年考研英语一真题及答案
    【答案】[B] concluded
    【解析】从此题所在的句子的前后内容可以判断出,that is_______ 中的 that 是指第
    一句话的内容(朋友与我们基因上的相关性),很显然是研究得出的结论。因此,答案为
    concluded。
    3. [A] for [B] with [C] on [D] by
    【答案】[C] on
    【解析】根据空格所在句子的内容(研究对 1932 分独特的受试者进行分析)判断出进行
    分析的对象是 1932 unique subjects。conduct analysis on…是固定表达。
    4. [A] compared [B] sought [C] separated [D] connected
    【答案】[A] compared
    【解析】该空格所在的句子是 which 引导的定语从句修饰 study,意思是:对几对基因
    不相关的朋友和陌生人进行_______。因为“研究”的内容是关于朋友间基因上的相关性
    题,所以完整的意思应该是:对几对基因不相关的朋友和陌生人进行比较。所以最佳答案
    compared。
    5. [A] tests [B] objects [C]samples [D] examples
    【答案】[C] samples
    【解析】根据空格的前后内容判断,到第五个空为止,文章都在讲实验过程,和实验对
    象,第五个空格所在句子的内容是:相同的人们都用于实验中的这两类______所以根据上
    下文语境和内容,应该选与实验对象相对应的 samples(样例).因此,答案是 samples。
    6. [A] insignificant [B] unexpected [C]unbelievable [D] in
    credible
    【答案】[A] insignificant
    【解析】空的语境为:尽管这 1%看起来似乎____,但是遗传学家可不这么认为。空前
    后形成对比转折的逻辑关系,而从后文列举的例子中可知遗传学家 James Fowler 对这 1%基
    因的态度是肯定的,故答案为 A。
    7. [A] visit [B] miss [C] seek [D] know
    【答案】[D] know
    【解析】空的语境为:大多数人甚至不____他们隔三代的表亲,但却设法选择那些____
    我们亲戚的人作为朋友。填入的词必须满足前后句之间的转折逻辑关系四个选项带入,
    D 选项符合上下文语义。
    8. [A] resemble [B] influence [C] favor [D] surpass
    【答案】[A] resemble
    【解析】空的语境为:大多数人甚至不认识他们隔三代的表亲,但却设法选择那些____
    我们亲戚的人作为朋友。根据全文中心:基因上的相似性,可知本题选择 A。
    9. [A] again [B] also [C] instead [D] thus
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    杰克陈

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