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2023年考研英语真题英语一真题.pdf

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Directions: Readthefollowingtext.Choosethebestword(s)foreachnumbered blankandmarkA,B,CorDonANSWERSHEET.(10points) Thoughnotbiologicallyrelated,friendsareas“related”asfourth cousins,sharingabout1%ofgenes.Thatis_(1)_astudy,publishedfrom theUniversityofCaliforniaandYaleUniversityintheProceedingsof theNationalAcademyofSciences,has__(2)_. Thestudyisagenome-wideanalysisconducted_(3)__1,932unique subjectswhich__(4)__pairsofunrelatedfriendsandunrelatedstrangers. Thesamepeoplewereusedinboth_(5)_. While1%mayseem_(6)_,itisnotsotoageneticist.AsJamesFowler, professorofmedicalgeneticsatUCSanDiego,says,“Mostpeopledonot even_(7)_theirfourthcousinsbutsomehowmanagetoselectasfriends thepeoplewho_(8)_ourkin.” Thestudy_(9)_foundthatthegenesforsmellweresomethingshared infriendsbutnotgenesforimmunity.Whythissimilarityexistsinsmell genesisdifficulttoexplain,fornow,_(10)_,astheteamsuggests,it drawsustosimilarenvironmentsbutthereismore_(11)_it.Therecould bemanymechanismsworkingtogetherthat_(12)_usinchoosinggenetically similarfriends_(13)_”functionalKinship”ofbeingfriendswith_(14)_! Oneoftheremarkablefindingsofthestudywasthesimilargenesseem tobeevolution_(15)_thanothergenesStudyingthiscouldhelp_(16)_why humanevolutionpickedpaceinthelast30,000years,withsocial environmentbeingamajor_(17)_factor. Thefindingsdonotsimplyexplainpeople’s_(18)_tobefriendthose ofsimilar_(19)_backgrounds,saytheresearchers.Thoughallthesubjects weredrawnfromapopulationofEuropeanextraction,carewastaken to_(20)_thatallsubjects,friendsandstrangers,weretakenfromthesame population. 1.[A]when[B]why[C]how[D]what 2.[A]defended[B]concluded[C]withdrawn[D]advised 3.[A]for[B]with[C]on[D]by 4.[A]compared[B]sought[C]separated[D]connected 5.[A]tests[B]s[C]samples[D]examples 6.[A]insignificant[B]unexpected[C]unbelievable[D]incredible 7.[A]visit[B]miss[C]seek[D]know 8.[A]resemble[B]influence[C]favor[D]surpass 9.[A]again[B]also[C]instead[D]thus 10.[A]Meanwhile[B]Furthermore[C]Likewise[