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）__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. [A] defended [B] concluded [C] withdrawn [D] advised

    　3. [A] for [B] with [C] on [D] by

    　4. [A] compared [B] sought [C] separated [D] connected

    　5. [A] tests [B] objects [C]samples [D] examples

    　6. [A] insignificant [B] unexpected [C]unbelievable [D] incredible

    　7. [A] visit [B] miss [C] seek [D] know

    　8. [A] resemble [B] influence [C] favor [D] surpass

    　9. [A] again [B] also [C] instead [D] thus

    　10. [A] Meanwhile [B] Furthermore [C] Likewise [D] Perhaps

    　11. [A] about [B] to [C]from [D]like

    　12. [A] drive [B] observe [C] confuse [D]limit

    　13. [A] according to [B] rather than [C] regardless of [D] along with

    　14. [A] chances [B]responses [C]missions [D]benefits

    　15. [A] later [B]slower [C] faster [D] earlier

    　16. [A]forecast [B]remember [C]understand [D]express

    　17. [A] unpredictable [B]contributory [C] controllable [D] disruptive

    　18. [A] endeavor [B]decision [C]arrangement [D] tendency

    　19. [A] political [B] religious [C] ethnic [D] economic

    　20. [A] see [B] show [C] prove [D] tell

    　【参考答案】DBCAC　ADABD　BABDC　CBDCA

    　【试题点评】完型填空为了测试考生实际应用英语的能力和语感。具体说来，是从语篇的角度综合测试考生的阅读理解能力、词汇的掌握和对英语习惯用语的熟悉程度、以及语法规则的灵活运用。这部分大家一定要注重思路和寻找线索能力的训练， 一般做题的基本思路是，：根据已知信息去填空，根据空前后的线索来选择填什么。比方说，题目让考生填主句的内容，那么从句中就会有相应的说明。题目让考生填动词，原文常常在别的地方出现这个动词的同义词。那么如何判断呢？首先根据需要填写动词后面出现的宾语，找到有同一宾语的句子，该句中的动词就是所需填写词的同义词。