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1、2019-2020年高考英语一轮复习Module5TheConquestoftheUniverseCloning课时作业提升练外研版选修Ⅰ.阅读理解A(xx·亳州模拟)HaveyouseenJurassicPark?Inthisfilm,scientistsuseDNAkeptfortensofmillionsofyearstoclonedinosaurs.Theyfindtrouble,however,whentheyrealizethattheclonedcreaturesaresmarterandmoredangerousthanexpected.That’snothingmor
2、ethanafiction.Butcouldwereallycloneendangeredanimals? Todate,themostsuccessfulattempttodosowasthecloningofagaur,arareox-likeanimalfromsoutheastAsia.Scientistsusedacowtobringtheclonedbabygaur,namedNoah.Twodaysafterbirth,however,Noahdiedfromamonbacterialinfection.Otherendangeredspeciesthatmaybecl
3、onedincludetheAfricanbongoantelope(羚羊),theSumatrantiger,thecheetah(猎豹),andthegiantpanda.Next,couldwereallycloneextinctanimals?Intheory?Yes.Todothis,youneedawell-keptsourceofDNAfromtheextinctanimalssuchasawoollymammoth(毛象),aTasmaniantiger,orevenadinosaur,andacloselyrelatedspecies,stillliving,whic
4、hcouldserveasasurrogatemother. Inreality?Probablynot.Ontheonehand,it’snotlikelythatextinctanimals’DNAcouldsurviveundamagedforsuchalongtime.Cloningextinctanimalsasawoollymammoth,aTasmaniantiger,oradinosaurismuchmoredifficultduetothelackofproperlywell-preservedDNA.Ontheotherhand,forexample,agaurc
5、anhaveacowasasurrogatemother,definitelynotamonkey.Butwhataboutanextinctanimalasuniqueasthepanda?Whatspeciescouldpossiblyserveasasurrogatemother?Cloningpresentsmanyexcitingpossibilities.However,evenifextinctanimalsarebroughtback,theycouldnotsurviveintoday’sworld.Notonlydomostextinctanimalshavenoh
6、abitattolivein,buttheotherplantsandanimalstheydependedonforfoodmayalsobegoneaswell.【文章大意】本文主要讲了作者对克隆动物的看法。1.Itcanbelearnedfromthetextthat______.A.scientistshaveclonedtheAfricanbongoantelopeB.boththebongoantelopeandthegiantpandaliveinAsiaC.thegaurlivesinAsiaandisendangeredD.thegaurisanextinctspec
7、ies【解析】选C。细节理解题。根据第三段的Todate,themostsuccessfulattempttodosowasthecloningofagaur,arareox-likeanimalfromsoutheastAsia.可知,gaur是生活在东南亚的一种稀有的动物。故选C。2.Theunderlinedwords“asurrogatemother”inParagraph5probablyrefertoafemalewho______
