考研完形填空英语一真题2023.pdf
考研完形填空英语一真题2023
考研完形填空英语一真题2023
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考研完形填空英语一真题1
Readthefollowingtext.Choosethebestword(s)foreach
numberedblankandmark[A,[B,[Cor[DonANSWERSHEET
1.(10points)
Thoughnotbiologicallyrelated,friendsareasrelatedas
fourthcousins,sharingabout1%ofgenes.Thatis1astudy
publishedfromtheUniversityofCaliforniaandYaleUniversity
intheProceedingsoftheNationalAcademyofSciences,has2.
Thestudyisagenome-wideanalysisconducted31932unique
subjectswhich4pairsofunrelatedfriendsandunrelated
strangers.Thesamepeoplewereusedinboth5.While1%may
seem6,itisnotsotoageneticist.AsJamesFowler,professor
ofmedicalgeneticsatUCSanDiego,says,Mostpeopledonot
even7theirfourthcousinsbutsomehowmanagetoselectas
friendsthepeoplewho8ourkin.
Thestudy9foundthatthegenesforsmellweresomething
sharedinfriendsbutnotgenesforimmunity.Whythis
千里之行,始于足下。
similarityinolfactorygenesisdifficulttoexplain,fornow.
10Perhaps,astheteamsuggests,itdrawsustosimilar
environmentsbutthereismore11it.Therecouldbemany
mechanismsworkingintandemthat12usinchoosinggenetically
similarfriends13thanfunctionalkinshipofbeingfriends
with14!Oneoftheremarkablefindingsofthestudywasthat
thesimilargenesseemtobeevolving15thanothergenes.
Studyingthiscouldhelp16whyhumanevolutionpickedpacein
thelast30,000years,withsocialenvironmentbeingamajor
17factor.
Thefindingsdonotsimplycorroboratepeoples18to
befriendthoseofsimilar19backg