it is easy for us to tell our friends from our enemies.阅读答案

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1、Itiseasyforustotellourfriendsfromourenemies.阅读答案　　Itiseasyforustotellourfriendsfromourenemies.Butcanotheranimalsdothesame?Elephantscan!Theycanusetheirsenseofsightandsmelltotellthedifferencebetweenpeoplewhoposeathreat（构成威胁）andthosewhodonot.　　InKenya,researchersfo

2、undthatelephantsreactdifferentlytoclothingwornbymenoftheMaasaiandKambareligiousgroups.YoungMaasaimenaretryingtokillanimalsandthusposeathreattoelephants;Kambamenaremainlyfarmersandarenotadangertoelephants.　　Inanexperimentconductedbyanimalscientists,elephantsweref

3、irstpresentedwithcleanclothingorclothingthathadbeenwornforfivedaysbyeitheraMaasaioraKambaman.WhentheelephantssensedthesmellofclothingwornbyaMaasaiman,theymovedawayfromthesmellfasterandtooklongertorelaxthanwhentheysensedthesmellsofeitherclothingwornbyKambamenorcl

4、othingthathadnotbeenwornatall.　　Garment（服装）coloralsoplaysarole,thoughinadifferentway.Inthesamestudy,whentheelephantssawredclothingnotwornbefore,theyreactedangrily,asredistypicallywornbyMaasaimen.Ratherthanrunningawayastheydidwiththesmell,theelephantsactedaggress

5、ivelytowardtheredclothing.　　Theresearchersbelievethattheelephants’emotionalreactionsareduetotheirdifferentinterpretations(解释)ofthesmellsandthesights.Smellingapotentialdangermeansthatathreatisnearbyandthebestthingtodoisrunawayandhide.Seeingapotentialthreatwithout

6、itssmellmeansthatriskislow.Therefore,insteadofshowingfearandrunningaway,theelephantsexpresstheirangerandbecomeaggressive.　　1.Accordingtothepassage,whatdoweknowaboutKambaandMaasaipeople?　　A.Maasaipeopleareathreattoelephants.　　B.Kambapeopleraiseelephantsforfarming

7、.　　C.BothKambaandMaasaipeopleareelephanthunters.　　D.BothKambaandMaasaipeoplelikethewornclothing.　　2.Howdidtheelephantsreacttosmellinthestudy?　　A.Theyattackedamanwiththesmellofnewclothing.　　B.Theyneededtimetorelaxwhensmellingsomethingunfamiliar.　　C.Theybecameanxi

8、ouswhentheysmelledclothingbyKambamen.　　D.Theywerefrightenedandranawaywhentheysmelledtheirenemies.　　3.Theelephantsmay______whentheycatchsightofredclothing.　　A.moveaway