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1、实用标准2015考研真题及解析（英语一） Directions: Readthefollowingtext.Choosethebestword(s)foreachnumberedblankandmarkA,B,CorDonANSWERSHEET.(10points) Thoughnotbiologicallyrelated,friendsareas“related”asfourthcousins,sharingabout1%ofgenes.Thatis_(1)_astudy,publishedfromt
2、heUniversityofCaliforniaandYaleUniversityintheProceedingsoftheNationalAcademyofSciences,has__(2)_. Thestudyisagenome-wideanalysisconducted_(3)__1,932uniquesubjectswhich__(4)__pairsofunrelatedfriendsandunrelatedstrangers.Thesamepeoplewereusedinboth_(5)_. Wh
3、ile1%mayseem_(6)_,itisnotsotoageneticist.AsJamesFowler,professorofmedicalgeneticsatUCSanDiego,says,“Mostpeopledonoteven_(7)_theirfourthcousinsbutsomehowmanagetoselectasfriendsthepeoplewho_(8)_ourkin.” Thestudy_(9)_foundthatthegenesforsmellweresomethingshare
4、dinfriendsbutnotgenesforimmunity.Whythissimilarityexistsinsmellgenesisdifficulttoexplain,fornow,_(10)_,astheteamsuggests,itdrawsustosimilarenvironmentsbutthereismore_(11)_it.Therecouldbemanymechanismsworkingtogetherthat_(12)_usinchoosinggeneticallysimilarfri
5、ends_(13)_”functionalKinship”ofbeingfriendswith_(14)_! Oneoftheremarkablefindingsofthestudywasthesimilargenesseemtobeevolution_(15)_thanothergenesStudyingthiscouldhelp_(16)_whyhumanevolutionpickedpaceinthelast30,000years,withsocialenvironmentbeingamajor_(17
6、)_factor. Thefindingsdonotsimplyexplainpeople’s_(18)_tobefriendthoseofsimilar_(19)_backgrounds,saytheresearchers.ThoughallthesubjectsweredrawnfromapopulationofEuropeanextraction,carewastakento_(20)_thatallsubjects,friendsandstrangers,weretakenfromthesamepop
7、ulation. 1.[A]when[B]why[C]how[D]what 【答案】[D]what文档大全实用标准 【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2.[A]defended[B]concluded[C]withdrawn[D]advised 【答案】[B]concluded 【解析
8、】从此题所在的句子的前后内容可以判断出，thatis_______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1932uniquesubject
