2015年考研英语一真题及答案(word)

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1、2015年全国硕士研究生入学考试英语一试题前面是真题，后面是答案SectionIUseofEnglishDirections:Readthefollowingtext.Choosethebestword(s)foreachnumberedblankandmarkA,B,CorDonANSWERSHEET1.(10points)Wehavemoregenesincommonwithpeoplewepicktobeourfriendsthanwithstrangers.Thoughnotbiologicallyrelated,friendsareas"related"asfo

2、urthcousins,sharingabout1%ofgenes.Thatis 1 a studypublishedfromtheUniversityofCaliforniaandYaleUniversityintheProceedingsoftheNationalAcademyofSciences,has 2.Thestudyisagenome-wideanalysisconducted 3 1932uniquesubjectswhich 4pairsofunrelatedfriendsandunrelatedstrangers.Thesamepeoplewereus

3、edinboth 5.While1%mayseem 6 ,itisnotsotoageneticist.Asco-authorofthestudyJamesFowler,professorofmedicalgeneticsatUCSanDiegosays,"Mostpeopledonoteven 7theirfourthcousinsbutsomehowmanagetoselectasfriendsthepeoplewho 8 ourkin."Theteam 9 developeda"friendshipscore"whichcanpredictwhowillbeyour

4、friendbasedontheirgenes.Thestudy also foundthatthegenesforsmellweresomethingsharedinfriendsbutnotgenesforimmunity.Whythissimilarityinolfactorygenesisdifficulttoexplain,fornow. 10,astheteamsuggests,itdrawsus 11similarenvironmentsbutthereismoretoit.Therecouldbemanymechanismsworkingintandemt

5、hat 12usinchoosinggeneticallysimilarfriends 13 "functionalkinship"ofbeingfriendswith 14 !Oneoftheremarkablefindingsofthestudywasthatthesimilargenesseemtobeevolving 15 thanothergenes.Studyingthiscouldhelp 16 whyhumanevolutionpickedpaceinthelast30,000years,withsocialenvironmentbeingamajor 1

6、7 factor.Thefindingsdonotsimplycorroboratepeople's 18tobefriendthoseofsimilar et19 backgrounds,saytheresearchers.ThoughallthesubjectsweredrawnfromapopulationofEuropeanextraction,carewastakento 20thatallsubjects,friendsandstrangersweretakenfromthesamepopulation.Theteamalsocontrolledthedata

7、tocheckancestryofsubjects1.[A]what[B]why[C]how[D]when2.[A]defended[B]concluded[C]withdrawn[D]advised3.[A]for[B]with[C]by[D]on4.[A]separated[B]sought[C]compared[D]connected5.[A]tests[B]objects[C]samples[D]examples6.[A]insignificant[B]unexpected[C]unreliable[D]incredi