201５年学士学位英语考试真题答案解析PａrtIｃommunicatiｏｎ(10points)ＤiａlｏguｅoneＴoｍ：Doyouｇotoｃollｅge？Mike:Ｙｅs.1Ｔoｍ:Whatcollegｅdｏyoｕgｏto？Mike:IgoｔｏＰasadenaＣｉtｙＣｏlｌege.Tom:Ｄｏyｏuｌｉkｅit?Mｉke：Oh,yｅs．2Toｍ:wｈydoｙｏulikｅit?Mike:Ｂecａuseithasgｒeａtteaｃhers.Toｍ：3Miｋe:Iｌikeａｌlmyclassｍates，too．Tom:Anyｔhｉnｇelse？Ｍｉｋe:Yes.4A.It’snｏｔexpensivｅ!B.Youｂet.C.IthｉnkIdo.D．whatｅｌｓe?参考答案:BCDＡＤｉaｌｏguｅＴwoSpeakeｒＡ:Ijustｒeceｎtｌymovedｉntoｔheneiｇhborhｏod.SｐeakerＢ:5Howreｃenｔlｙ？SpeａkerA:Justｌａｓtweeｋ.SpeaｋerB:Whａtkinｄｓofthｉngｓｈaveyoubeｅnｄoiｎgouttheｒe?SpｅａkerA：６SｐｅakｅrB:whyｎot?ＳpeakerA:Ｉdon'tkｎowwhattodo.SpeaｋerB：Tｈere'rｅallsoｒｔofｔhiｎgstｏdo.ＳpｅａｋeｒＡ:7SpeａkerB:Shｏｐpinｇ,ｏrseeｉngａmovie,orｅvｅngｏｉngｔothebeach．SpｅaｋerＡ:Thatｓoundsgｒeａt．Ａ.Ｉｈaveｎ'tｂeendoiｎgmuch.B.Ｒｅａlly?C.Ｈowａｒeyｏudoing?Ｄ.Liｋeｗｈat?参考答案：BＡDDiａlｏgueＴhreｅGeoｒｇe:Ｄｉdyouheａrａboutthｅｒobbery?Joｈnｎy：No,Ｉdｉdn'theaｒabｏutｉt.Geoｒge:Ａmaｎｔriedtorobthebanknexｔtooｕrbuilｄingthismorning．Ｊｏhｎｎy:8Geｏrgｅ:Ｙｅs,ｈeｔriedｔｏrobthebankatgｕnpoiｎt.Johnｎy：9George:Oh,eｖeryonｅinｔhebaｎkisOK.Jｏhnny:Ｔｈat'ｓgoodtoheａｒ．George:Hｅdidgｅtaway,thoｕgｈ.Jｏhnnｙ:Thatishorriｂle．Ｇeｏrge:1０Johｎnｙ:Ｉ＇msｕrethey'llcatｃhｈｉmeｖenｔually.Ａ．Dｉｄａnｙonｅgethurt?Ｂ.Thａnkｔheｌuckｙstars.Ｃ．Areyouserious?D．Ｔｈecopsｄon＇ｔknowｗhotｈeｇuyｉs.参考答案：CＡDPａｒtIIRｅadiｎｇＣomｐrehｅnｓiｏｎ（40poｉntｓ)Dｉrｅｃｔｉons:Thｅｒeａre4pａssagesinthｉspａrt．Eacｈｐassａgeisfollowｅdby5questｉｏnsｏｒunfinishedsｔatｅmeｎｔs.Fｏrｅaｃhoftｈemtｈerｅare4cｈoｉcｅｓｍarkeｄA，B,CandＤ.ChｏosethｅbeｓtｏneａnｄmａrkｙouraｎswerontheANＳＷＥRSＨEETwithasinｇｌebarthｒｏughtheｃenteｒｏfｔheｌｅｔｔer．PassageOｎｅＨeｒｅ'safamiliａrstory.Ｙｏu'reｓittiｎgattheｄinnertａbｌewithａｆｕｒrｙ,fｏur-lｅggeｄfrienｄscratchｉngatyourfeet.Whenyouｌookdoｗn，ｔhoｓecｕteeyesａrｅalmoｓtimpossiｂlｅtｏresist.Whatisitabｏutadｏg'sgaｚeｔhatｍakesitsoｃhaｒmｉｎg?AnｅwstuｄyｂyJapaｎesescｉenｔisｔMｉhoNaｇasawasｅｅｍstohavefouｎｄtheａｎswer,ａｎdithasｔodowithｓomeｔhingcaｌledthｅｃuｄdle(爱抚）cｈeｍical.Ｔｈecuddlｅcｈemicalhａｓanother,moresｃientｉficnａmｅ:oxytociｎ.Oｘｙtoｃｉnisasuｂstanｃeiｎｔhebｌoｏｄthａtenｃourageｓbｏｎdｉｎg．Lｅvelsofｏxytociniｎcreasｅ,foｒｅxaｍplｅ,wｈenamotherｆeedｓhｅrｎｅwｂｏrnｂaby.AｃcordiｎgtoＮａgasaｗa'sｓｔudｙ,tｈesａmeistruewhenwelｏoｋdeeplｙｉnｔｏtheeｙesofadｏg.Thｅresuｌtsoｆthisstudycanｔellusalotaboutthehisｔorｙofthebondbeｔweeｎhumansanddogｓ.Itallstaｒtｅdｓｏｍｅwherｅtenｓoｆthouｓandｓoｆyeaｒｓａgo.Sｃienｔiｓtｓbｅliｅvethatwｏlvesusedtoｆollowhumａnsｗｈｏwｅrehuntｉｎglargeanimalｓ.Thewoｌveswｏｕldｅatthefｏodlｅfｔbｅhinｄbｙthehumａns.Hｕmansｒeaｌizeｄｔhａｔtheyｃouｌｄuseｔhewoｌvｅstohelpｗｉｔhthehunt，andｅｖentuaｌｌｙboｔhspeｃｉesbegａntowｏrkｔogｅtherｔowaｒｄsuｒvival.Oｖerｔimｅ,ｔhｅｗolvesｔhatinｔｅrａctedwｉththeｈｕｍansbegａｎtochanｇe.Tｈｅybｅcaｍｅmoreｌｏyａlｔotｈｅirhｕmａnｐartｎers.Thewolveｓandhumansstartedｔodeｐeｎdonｅaｃhｏｔｈeraｎdbｏnｄwithｅａchｏthｅr.Theseｃｈangｅsarｅwhatｃausedｓomｅoｆｔｈｅwoｌvestoturnintowhaｔｗenowknowａsdogs,aneｗｓpecｉｅ^evｏlvedtoｂｅt...
