微信公众号《考研路上的幸福哥》，考研干货最多的公众平台12015年全国硕士研究生入学考试英语一试题SectionIUseofEnglishDirections:Readthefollowingtext.Choosethebestword(s)foreachnumberedblankandmarkA,B,CorDonANSWERSHEET1.(10points)Wehavemoregenesincommonwithpeoplewepicktobeourfriendsthanwithstrangers.Thoughnotbiologicallyrelated,friendsareas"related"asfourthcousins,sharingabout1%ofgenes.Thatis1astudypublishedfromtheUniversityofCaliforniaandYaleUniversityintheProceedingsoftheNationalAcademyofSciences,has2.Thestudyisagenome-wideanalysisconducted31932uniquesubjectswhich4pairsofunrelatedfriendsandunrelatedstrangers.Thesamepeoplewereusedinboth5.While1%mayseem6,itisnotsotoageneticist.Asco-authorofthestudyJamesFowler,professorofmedicalgeneticsatUCSanDiegosays,"Mostpeopledonoteven7theirfourthcousinsbutsomehowmanagetoselectasfriendsthepeoplewho8ourkin."Theteam9developeda"friendshipscore"whichcanpredictwhowillbeyourfriendbasedontheirgenes.Thestudyalsofoundthatthegenesforsmellweresomethingsharedinfriendsbutnotgenesforimmunity.Whythissimilarityinolfactorygenesisdifficulttoexplain,fornow.10,astheteamsuggests,itdrawsus11similarenvironmentsbutthereismoretoit.Therecouldbemanymechanismsworkingintandemthat12usinchoosinggeneticallysimilarfriends13"functionalkinship"ofbeingfriendswith14!Oneoftheremarkablefindingsofthestudywasthatthesimilargenesseemtobeevolving15thanothergenes.Studyingthiscouldhelp16whyhumanevolutionpickedpaceinthelast30,000years,withsocialenvironmentbeingamajor17factor.Thefindingsdonotsimplycorroboratepeople's18tobefriendthoseofsimilaret19backgrounds,saytheresearchers.ThoughallthesubjectsweredrawnfromapopulationofEuropeanextraction,carewastakento20thatallsubjects,friendsandstrangersweretakenfromthesamepopulation.Theteamalsocontrolledthedatatocheckancestryofsubjects.微信公众号《考研路上的幸福哥》，考研干货最多的公众平台21.[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withdrawn[D]advised3.[A]for[B]with[C]on[D]by4.[A]compared[B]sought[C]separated[D]connected5.[A]test...
