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1、SectionIUseofEnglishDirections:Readthefollowingtext.Choosethebestword(s)foreachnumberedblankandmarkA，B，CorDonANSWERSHEET.(10points)Thoughnotbiologicallyrelated,friendsareas“related”asfourthcousins,sharingabout1%ofgenes.Thatis1astudy,publishedfromtheUniversityofCaliforniaandYaleUniversityin
2、theProceedingsoftheNationalAcademySciences,has2.Thestudyisagenome-wideanalysisconducted31,932uniquesubjectswhich4pairsofunrelatedfriendsandunrelatedstrangers.Thesamepeoplewereusedinboth5.While1%mayseem6,itisnotsotoageneticist.AsJamesFowler,professorofmedicalgeneticsatUCSanDiego,says,“mostp
3、eopledonoteven7theirfourthcousinsbutsomehowmanagetoselectasfriendsthe8ourkin.”Thestudy9foundthatthegenesforsmallweresomethingsharedinfriendsbutnotgenesforimmunity.Whythissimilarityexistsinsmellgenesisdifficulttoexplain,fornow,10,astheteamsuggests,itdrawsustosimilarenvironmentsbutthereismor
4、e11it.Therecouldbemanymechanismsworkingtogetherthat12usinchoosinggeneticallysimilarfriends13“functionalKinship”ofbeingfriendswith14!Oneoftheremarkablefindingsofthestudywasthesimilargenestobeevolution15thanothergenes.Studyingthiscouldhelp16whyhumanevolutionpickedpaceinthelast30,000years,wit
5、hsocialenvironmentbeingamajor17factor.Thefindingsdonotsimplyexplainpeople’s18tobefriendthoseofsimilar19backgrounds,saytheresearchers.ThoughallthesubjectsweredrawnfromapopulationofEuropeanextraction,caretakento20thatallsubjects,friendsandstrangers,weretakenfromthesamepopulation.1、[A]what[B]
6、why[C]how[D]when2、[A]defended[B]concluded[C]withdrawn[D]advised3、[A]for[B]with[C]by[D]on4、[A]separated[B]sought[C]compared[D]connected5、[A]tests[B]objects[C]samples[D]examples6、[A]Insignificant[B]unexpected[C]unreliable[D]incredible7、[A]visit[B]miss[C]know[D]seek8、[A]surpass[B]influence[C]
7、favor[D]resemble9、[A]again[B]also[C]instead[D]thus10、[A]Meanwhile[B]Furthermore[C]Likewise[D]Perhaps11、[A]about[B]to[C]from[D]like12、[A]limit[B]observe[C]confuse[D]drive13、[A]accordingto[B]ratherthan[C]regardlessof[D]alongwith14、[A]chances[B]responses[C]benefi
