2024年考研英语真题正式版.docx

如下内容来自华研外語《考研英語真題集训》，覺得它解释得比很好懂，分享一下。

全国硕士硕士入學统一考试

英語（一）试題

SectionIUseofEnglish

Directions:

Readthefollowingtext.Choosethebestword(s)foreachnumberedblankandmarkA,B,CorDontheANSWERSHEET.(10points)

Thoughnotbiologicallyrelated,friendsareas“related”asfourthcousins,sharingabout1%ofgenes.Thatis1astudy,publishedfromtheUniversityofCaliforniaandYaleUniversity

Thestudyisagenome-wideanalysisconducted31,932uniquesubjectswhich4pairsofunrelatedfriendsandunrelatedstrangers.Thesamepeoplewereusedinboth5.

While1%mayseem6,itisnotsotoageneticist.AsJamesFowler,professorofmedicalgeneticsatUCSanDiego,says,“Mostpeopledonoteven7theirfourthcousinsbutsomehowmanagetoselectasfriendsthepeoplewho8ourkin.”

Thestudy9foundthatthegenesforsmellweresomethingsharedinfriendsbutnotgenesforimmunity.Whythissimilarityexistsinsmellgenesisdifficulttoexplain,fornow.10,astheteamsuggests,itdrawsustosimilarenvironmentsbutthereismore11it.Therecouldbemanymechanismsworkingtogetherthat12usinchoosinggeneticallysimilarfriends13“functionalkinship”ofbeingfriendswith14!

Oneoftheremarkablefindingsofthestudywasthatthesimilargenesseemtobeevolving15thanothergenes.Studyingthiscouldhelp16whyhumanevolutionpickedpaceinthelast30,000years,withsocialenvironmentbeingamajor17factor.

Thefindingsdonotsimplyexplainpeople’s18tobefriendthoseofsimilar19backgrounds,saytheresearchers.ThoughallthesubjectsweredrawnfromapopulationofEuropeanextraction,carewastakento20thatallsubjects,friendsandstrangersweretakenfromthesamepopulation.Theteamalsocontrolledthedatatocheckancestryofsubjects.

1.A.what B.why C.how D.when

2.A.defended B.concl