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1、2014高考英语冲刺阅读理解专项50-31AEverybodyishappyashispayrises.Yetpleasureatyourowncandisappearifyoulearnthatafellowworkerhasbeengivenabiggerone.Indeed,ifheisknownasbeinglazy,youmightevenbequitecross.Suchbehaviorisregardedas“alltoohuman”,withtheunderlyingbelief
2、thatotheranimalswouldnotbeabletohavethisfinelydevelopedsenseofsadness.ButastudybySarahBrosnanofEmoryUniversityinAtlanta,Georgia,whichhasjustbeenpublishedinNature,suggeststhatitisalltoomonkey,aswell. Theresearchersstudiedthebehaviorsofsomekindoffema
3、lebrownmonkeys.Theylooksmart.Theyaregood-natured,co-operativecreatures,andtheysharetheirfoodhappily.Aboveall,likefemalehumanbeings,theytendtopaymuchcloserattentiontothevalueof“goodsandservices”thanmales. Suchcharacteristicsmakethemperfectsubjectsfo
4、rDoctorBrosnan’sstudy.Theresearchersspenttwoyearsteachingtheirmonkeystoexchangetokens(奖券)forfood.Normally,themonkeyswerehappyenoughtoexchangepiecesofrockforpiecesofcucumber.However,whentwomonkeyswereplacedinseparateandconnectedrooms,sothateachotherco
5、uldobservewhattheotherisgettinginreturnforitsrock,theybecamequitedifferent.Intheworldofmonkeys，grapesareexcellentgoods(andmuchpreferabletocucumbers).Sowhenonemonkeywashandedagrapeinexchangeforhertoken,thesecondwasnotwillingtohandhersoverforamerepiece
6、ofcucumber.Andifonereceivedagrapewithouthavingtoprovidehertokeninexchangeatall,theothereithershookherowntokenattheresearcher,orrefusedtoacceptthecucumber.Indeed,themerepresenceofagrapeintheotherroom(withoutanactualmonkeytoeatit)wasenoughtobringaboutd
7、issatisfactioninafemalemonkey.Theresearchessuggestthatthesemonkeys,likehumans,areguidedbysocialsenses.Inthewild,theyareco-operativeandgroup-living.Suchco-operationislikelytobefirmonlywheneachanimalfeelsitisnotbeingcheated.Feelingsofangerwhenunfairlyt
8、reated,itseems,arenotthenatureofhumanbeingsalone.Refusingasmallerrewardcompletelymakesthesefeelingscleartootheranimalsofthegroup.However,whethersuchasenseoffairnessdevelopedindependentlyinmonkeysandhumans,orwhetheritcomesfromthecommonrootsthattheyhad
