about 85 percent of the world are right-handed. of the remaining 15 percent阅读理解答案,

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1、About85percentoftheworldareright-handed.Oftheremaining15percent阅读理解答案,　　阅读理解About85percentoftheworldareright-handed.Oftheremaining15percent,mostareleft-handedwithasmallnumber,aboutonein100,beingabletouseeitherhand.Why36　　OldTheories　　37Evenintheearlymid-20thcentury,naturall

2、eft-handersweretaughttousetheirrighthandanyway.Suchtheorieshavebeendeniedbythescientificcommunity.　　Genetics　　Theleadingtheoriesregardingwhysomepeopleareright-handedorleft-handedhavesomethingtodowithgenetics.Geneticistsbelievethatnaturalselectionandhumanactivitiesovertimeha

3、vefavoredthegeneforrighthandedness.Theyattributethedifferencetotwodifferentgenes.TheDgeneproducesright-handedpeoplewiththeCgeneareright-handers,someareleft-handersandsomeareeither.　　Biology　　Thebiologicaltheoryreliesonthedifferentabilitiesofdifferentareasofthebrain.__38Othe

4、rsarguethatsomepeopledousetherightsideforlanguagebutthistheorywouldn’texplainwhythe　　　　rearesofewleft-handers.　　TheShield　　Somehaveputforwardtheideathatleft-handednessrelatestowhereasoldierholdshisshield.Becausetheheartisontheleftsideofthebody,asoldierwhoheldhisshieldwithhi

5、slefthandwouldbebetterprotected.__39__　　Creativity　　Somehaveclaimedthatleft-handersaremorecreativethanright-handers,pointingtoalonglistoffamousleft-handersincludingLeonardoDaVinciandAlbertEinsteinasexamples.__40__Critics,however,pointoutthattherearealsomanyright-handedcreat

6、ivepeopleandthattherearemanyphotosshowingEinsteindrawingwithhisrighthand.　　A.Thereisnotenoughevidenceyettoanswerthequestion.　　B.Becausetheleftsideofthebrainhandleslanguageinmostpeople,mostpeople　　wouldberight-handed.　　C.Ifthisistrue,itmighthelpleadtoanswers.　　D.Otherspointo

7、utthataccordingtocavepaintings,mostwereright-handers　　beforehumansstartedusingshields.　　E.L　　　　eft-handednessusedtobeseenasasignofbraindamage.　　F.However,peoplewhosuffersometypeofinjuryorhaveadisabilityinonehand　　frequentlylearntousetheother.　　G.Left-handedpeopletendtobebet

8、teratproblem-solvingskillsandhavelargervocabulariesthantheaverage.　　答案解析：　　36-40AE