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(一)真题完整版
2022年考研英语(一)真题完整版
SectionIUseofEnglish
Directions:
Readthefollowingte某t.Choosethebestword(s)foreach
numberedblankandmarkA,B,CorDonANSWERSHEET.(10points)
Thoughnotbiologicallyrelated,friendsareas“related”as
fourthcousins,sharingabout1%ofgenes.Thatis_(1)_astudy,
publishedfromtheUniversityofCaliforniaandYaleUniversityin
theProceedingsoftheNationalAcademyofSciences,has__(2)_.
Thestudyisagenome-wideanalysisconducted_(3)__1,932unique
subjectswhich__(4)__pairsofunrelatedfriendsandunrelated
strangers.Thesamepeoplewereusedinboth_(5)_.
While1%mayseem_(6)_,itisnotsotoageneticist.AsJames
Fowler,professorofmedicalgeneticsatUCSanDiego,says,“Most
peopledonoteven_(7)_theirfourthcousinsbutsomehowmanageto
selectasfriendsthepeoplewho_(8)_ourkin.”
Thestudy_(9)_foundthatthegenesforsmellweresomething
sharedinfriendsbutnotgenesforimmunity.Whythissimilaritye
某istsinsmellgenesisdifficulttoe某plain,fornow,_(10)_,as
theteamsuggests,itdrawsustosimilarenvironmentsbutthereis
more_(11)_it.Therecouldbemanymechanismsworkingtogetherthat
_(12)_usinchoosinggeneticallysimilarfriends_(13)_”functional
Kinship”ofbeingfriendswith_(14)_!
Oneoftheremarkablefindingsofthestudywasthesimilargenes
seemtobeevolution_(15)_thanothergenesStudyingthiscould
help_(16)_whyhumanevolutionpickedpaceinthelast30,000years,
withsocialenvironmentbeingamajor_(17)_factor.
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某plainpeople’s_(18)_tobefriend
thoseofsimilar_(19)_backgrounds,saytheresearchers.Thoughall
thesubjectsweredrawnfromapopulationofEuropeane某traction,
carewastakento_(20)_thatallsubjects,frie
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