2015年考研英语一真题及答案.docx

2015年全国硕士研究生入学统一考试英语(一)试题SectionI UseofEnglishDirections:(s)foreachnumberedblankandmarkA,B,CorDontheANSWERSHEET. (10points)①Thoughnotbiologicallyrelated,friendsareas“related”asfourthcousins,sharingabout1%ofgenes.②Thatis1astudy,publishedfromtheUniversityofCaliforniaandYaleUniversityintheProceedingsoftheNationalAcademyofSciences,has2.①Thestudyisagenome-wideanalysisconducted31,932uniquesubjectswhich4pairsofunrelatedfriendsandunrelatedstrangers.②Thesamepeoplewereusedinboth5.①While1%mayseem6,icist.②AsJamesFowler,icsatUCSanDiego,says,“Mostpeopledonoteven7theirfourthcousinsbutsomehowmanagetoselectasfriendsthepeoplewho8ourkin.”①Thestudy9foundthatthegenesforsmellweresomethingsharedinfriendsbutnotgenesforimmunity.②Whythissimilarityexistsinsmellgenesisdifficulttoexplain,fornow.③10,astheteamsuggests,itdrawsustosimilarenvironmentsbutthereismore11it.④icallysimilarfriends13“functionalkinship”ofbeingfriendswith14! ①Oneoftheremarkablefindingsofthestudywasthatthesimilargenesseemtobeevolving15thanothergenes.②Studyingthiscouldhelp16whyhumanevolutionpickedpaceinthelast30,000years,withsocialenvironmentbeingamajor17factor.①Thefindingsdonotsimplyexplainpeople’s18tobefriendthoseofsimilar19backgrounds,saytheresearchers.②ThoughallthesubjectsweredrawnfromapopulationofEuropeanextraction,carewastakento20thatallsubjects,friendsandstrangersweretakenfromthesamepopulation.③Theteamalsocontrolledthedatatocheckancestryofsubjects.[A]what [B]why [C]how [D]when[A]defended [B]concluded [C]withdrawn [D]advised[A]for [B]with [C]by [D]on[A]separated [B]sought [C]pared [D]connected[A]tests [B]objects [C]samples [D]examples[A]insignificant [B]unexpected [C]unreliable [D]incredible[A]visit [B]miss [C]know [D]seek[A]surpass [B]influence [C]favor [D]resemble[A]again [B]also [C]instead [D]thus[A]Meanwhile [B]Furthermore [C]Likewise [D]Perhaps[A]about [B]to [C]from [D]like[A]limit [B]observe [C]confuse [D]drive[A]accordingto [B]ratherthan [C]regardlessof [D]alongwith[A]chances