考研英语真题及答案.doc

考研英语真题及答案 出guo考研网为大家提供了考研英语历年真题及答案，希望大家愉快备考。 Directions: Readthefollowingtext.Choosethebestword(s)foreachnumberedblankandmarkA，B，CorDonANSWERSHEET.(10points) Thoughnotbiologicallyrelated,friendsareas“related”asfourthcousins,sharingabout1%ofgenes.Thatis1astudy,publishedfromtheUniversityofCaliforniaandYaleUniversityintheProceedingsoftheNationalAcademySciences,has2. Thestudyisagenome-wideanalysisconducted31,932uniquesubjectswhich4pairsofunrelatedfriendsandunrelatedstrangers.Thesamepeoplewereusedinboth5. While1%mayseem6,itisnotsotoageicist.AsJamesFowler,professorofmedicalgeicsatUCSanDiego,says,“mostpeopledonoteven7theirfourthcousinsbutsomehowmanagetoselectasfriendsthe8ourkin.” Thestudy9foundthatthegenesforsmallweresomethingsharedinfriendsbutnotgenesforimmunity.Whythissimilarityexistsinsmellgenesisdifficulttoexplain,fornow,10,astheteamsuggests,itdrawsustosimilarenvironmentsbutthereismore11it.Therecouldbemanymechanismsworkingtogetherthat12usinchoosinggeicallysimilarfriends13“functionalKinship”ofbeingfriendswith14! Oneoftheremarkablefindingsofthestudywasthesimilargenestobeevolution15thanothergenes.Studyingthiscouldhelp16whyhumanevolutionpickedpaceinthelast30,000years,withsocialenvironmentbeingamajor17factor. Thefindingsdonotsimplyexplainpeoples18tobefriendthoseofsimilar19backgrounds,saytheresearchers.ThoughallthesubjectsweredrawnfromapopulationofEuropeanextraction,caretakento20thatallsubjects,friendsandstrangers,weretakenfromthesamepopulation. 1、AwhatBwhyChowDwhen 2、AdefendedBconcludedCwithdrawnDadvised 3、AforBwithCbyDon 4、AseparatedBsoughtCparedDconnected 5、AtestsBobjectsCsamplesDexamples 6、AInsignificantBunexpectedCunreliableDincredible 7、AvisitBmissCknowDseek 8、AsurpassBinfluenceCfavorDresemble 9、AagainBalsoCinsteadDthus 10、AMeanwhileBFurthermoreCLikewiseDPerhaps 11、AaboutBtoCfromDlike 12、AlimitBobserveCconfuseDdrive 13、AaordingtoBratherthanCregardlessofDalongwith 14、AchancesBresponsesCbenefitsDmissions 15、AfasterBslowerClaterDearlier 16、AforecastBrememberCexpressDdisruptive 17、AunpredictableBcontributoryCcontrollableDdisruptive 18、AtendencyBdecisionCarrangementDendeavor 19、ApoliticalBreligiousCethnicDeconomic 20、AseeBshowCproveDtell 1、What 2、Concluded 3、On 4、Compared 5、Samples 6、Insignificant 7、know 8、resemble 9、also 10、Perha