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book3 Unit 8听力答案与文本VIP免费

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Unit8PartTwoListeningIAlthoughtwinshavealwaysbeenasourceofcuriosity,theyarenotsouncommonstatistically,sincetheyoccuronceinevery86births.Aboutonethirdofalltwinsareidentical,orsingle-eggtwins.Identicaltwinshavethesamegenesand,hence,thesamesex,hair,eyes,bloodtype,andboneandtoothstructure.Someidenticaltwinsaremirrorimagesofeachother.Forexample,onemaybeleft-handed,theotherright-handed.Asyoungchildren,someidenticaltwinsmaydeveloptheirownprivatelanguage.Identicaltwinshaveanespeciallykeenintuition,andtheyoftenseemtothinkanddressalikeevenwhenawayfromeachother.Infact,evenwhentheyareseparatedatbirthandraisedapart,identicaltwinsdevelopsurprisingsimilarities.Theymaypursuethesamecareers,havethesameinterests,ordiewithindaysofeachother.Incontrasttoidenticaltwins,fraternaltwinsinheritaseparatesetofgenesandarenotnecessarilyofthesamesex.Exercise11.F2.F3.T4.F5.TExercise21.genes2.sex3.blood4.tooth5.mirror6.left-handed7.right-handed8.language9.young10.alike11.separated12.apart13.careers14.interestsListeningIIWhenRobertJones,19,wenttocollegethisfall,hewassurprisedthatsomanyofhisclassmatescalledhim"Edward".Theytoldhimhelookedjustlikeaformerstudent,EdwardGallant,andafriendofGallant'sdiscoveredtheyhadthesamebirthdate.BothRobertandEdwardwereadopted.Whentheytalkedwitheachother,theydiscoveredthattheywereidenticaltwinsseparatedshortlyafterbirth.Infact,theywerewrong:Theyweretriplets.Afternewspaperspublishedtheirpictures,Edward'smothergotacallfromDavidKellman."You'renotgoingtobelievethis,"hesaid,"butIbelieveI'mthethird."As"BabyA","BabyB"and"BabyC",Robert,EdwardandDavidhadbeenborntothesamemotheronJuly12,1976.Theywereadoptedbythreedifferentcouples,noneofwhomwastoldtheirnewsonhadbrothers.Thereunionofthethreeboysafter19yearswasabigsurpriseforeveryoneinallthefamilies.Relativessaytheirresemblanceextendswellbeyondtheirlooks.Allthreelikeactivesportsandhavesimilartastesinrockmusicandgirlfriends.Allthreeareextrovertswhohavesimilargestures.Theytalkinthesameway,theyhavethesamelaugh,theyholdtheircigarettesinthesameway,andallthreesmokethesamebrandofcigarette.Questions:1.WhatsurprisedRobertJoneswhenhewenttocollege?2.WhofoundthecluetotherelationshipbetweenRobertJonesandEdwardGallant?3.HowdidDavidKellmangettoknowhisorigins?4.WhichofthefollowingstatementsistrueaboutRobertJones,EdwardGallantandDavidKellman?Exercise11.B2.D3.A4.DExercise21.4.6.8.10.11.12PartThreeMoreListeningPracticeOneMichaelPhelpsstandssixfeetfourinches(193centimeters)andweighs195pounds(88.5kilograms),withthebroadshouldersandslimwaistcommontotheeliteswimmer.ButconsiderhisbodymeasurementsalittlecloseranditbecomesclearerwhyPhelpsisdominatingtheseOlympicGames.Hehasanextendedtrunkandrelativelyshortlegs,adistinctadvantageinthewater.Theinseamofhispantsisreportedly32inches(81centimeters),shorterthanthatofHichamElGuerrouj,thegreatMoroccanrunner,whoisfivefeetnineinches(175centimeters)butalllegs.Phelpshasdouble-jointedelbows,knees,andankles,whichallowshimtobendhimselflikefewswimmerscan.Hissize-14(Europeansize-48.5)feetarelikegiantfins.Addtothattheextraordinaryworkrateofhislungsandheart,andPhelpsappearsalmostsuperhuman—adifferentspeciesfromtherestofus.Ofcourse,hetrainsextraordinarilyhard.Butsodoothers.TobeanOlympicchampion,aperson'sgenesmustfirstbepresetformaximalathleticperformance.Afterall,greatathletesareborn,thenmadebetter."Thebestathletesintheworldarearesult...

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book3 Unit 8听力答案与文本

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