考研英语一真题及解析

《考研英语一真题及解析》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。

1、考研英语一真题原文及答案解析完整版SectionIUseofEnglishDirections:Readthefollowingtext.Choosethebestword(s)foreachnumberedblankandmarkA,B,CorDonANSWERSHEET.(10points)Thoughnotbiologicallyrelated,friendsareas“related”asfourthcousins,sharingabout1%ofgenes.Thatis_(1)_astudy,publishedfromtheUniversityofCaliforniaandYa

2、leUniversityintheProceedingsoftheNationalAcademyofSciences,has__(2)_.Thestudyisagenome-wideanalysisconducted_(3)__1,932uniquesubjectswhich__(4)__pairsofunrelatedfriendsandunrelatedstrangers.Thesamepeoplewereusedinboth_(5)_.While1%mayseem_(6)_,itisnotsotoageneticist.AsJamesFowler,professorofmedica

3、lgeneticsatUCSanDiego,says,“Mostpeopledonoteven_(7)_theirfourthcousinsbutsomehowmanagetoselectasfriendsthepeoplewho_(8)_ourkin.”Thestudy_(9)_foundthatthegenesforsmellweresomethingsharedinfriendsbutnotgenesforimmunity.Whythissimilarityexistsinsmellgenesisdifficulttoexplain,fornow,_(10)_,astheteams

4、uggests,itdrawsustosimilarenvironmentsbutthereismore_(11)_it.Therecouldbemanymechanismsworkingtogetherthat_(12)_usinchoosinggeneticallysimilarfriends_(13)_”functionalKinship”ofbeingfriendswith_(14)_!Oneoftheremarkablefindingsofthestudywasthesimilargenesseemtobeevolution_(15)_thanothergenesStudyin

5、gthiscouldhelp_(16)_whyhumanevolutionpickedpaceinthelast30,000years,withsocialenvironmentbeingamajor_(17)_factor.Thefindingsdonotsimplyexplainpeople’s_(18)_tobefriendthoseofsimilar_(19)_backgrounds,saytheresearchers.ThoughallthesubjectsweredrawnfromapopulationofEuropeanextraction,carewastakento_(

6、20)_thatallsubjects,friendsandstrangers,weretakenfromthesamepopulation.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withdrawn[D]advised【答案】[B]conclude

7、d【解析】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1932uniquesubjects。conductanalysison…是固定表达。