资源描述：
《2015年考研英语一真题》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、2015年全国硕士研究生入学统一考试英语（一）试题SectionIUseofEnglishDirections:Readthefollowingtext.Choosethebestword(s)foreachnumberedblankandmarkA,B,CorDonANSWERSHEET.(10points)Thoughnotbiologicallyrelated,friendsareas“related”asfourthcousins,sharingabout1%ofgenes.Thatis1 astudy,publishedfromtheUniversi
2、tyofCaliforniaandYaleUniversityintheProceedingsoftheNationalAcademyofSciences,has2 .Thestudyisagenome-wideanalysisconducted31,932uniquesubjectswhich4pairsofunrelatedfriendsandunrelatedstrangers.Thesamepeoplewereusedinboth5.While1%mayseem6,itisnotsotoageneticist.AsJamesFowler,profess
3、orofmedicalgeneticsatUCSanDiego,says,“Mostpeopledonoteven7theirfourthcousinsbutsomehowmanagetoselectasfriendsthepeoplewho8ourkin.”Thestudy9foundthatthegenesforsmellweresomethingsharedinfriendsbutnotgenesforimmunity.Whythissimilarityexistsinsmellgenesisdifficulttoexplain,fornow,10,as
4、theteamsuggests,itdrawsustosimilarenvironmentsbutthereismore11it.Therecouldbemanymechanismsworkingtogetherthat12usinchoosinggeneticallysimilarfriends13”functionalKinship”ofbeingfriendswith14!Oneoftheremarkablefindingsofthestudywasthesimilargenesseemtobeevolution15thanothergenesStudy
5、ingthiscouldhelp16whyhumanevolutionpickedpaceinthelast30,000years,withsocialenvironmentbeingamajor17factor.Thefindingsdonotsimplyexplainpeople’s18tobefriendthoseofsimilar19backgrounds,saytheresearchers.ThoughallthesubjectsweredrawnfromapopulationofEuropeanextraction,carewastakento20
6、thatallsubjects,friendsandstrangers,weretakenfromthesamepopulation.1.[A]when[B]why[C]how[D]what2.[A]defended[B]concluded[C]withdrawn[D]advised3.[A]for[B]with[C]on[D]by4.[A]compared[B]sought[C]separated[D]connected5.[A]tests[B]objects[C]samples[D]examples6.[A]insignificant[B]unexpect
7、ed[C]unbelievable[D]incredible7.[A]visit[B]miss[C]seek[D]know8.[A]resemble[B]influence[C]favor[D]surpass9.[A]again[B]also[C]instead[D]thus10.[A]Meanwhile[B]Furthermore[C]Likewise[D]Perhaps11.[A]about[B]to[C]from[D]like12.[A]drive[B]observe[C]confuse[D]limit13.[A]accordingto[B]rather
8、than[C]regardlessof
