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1、Module5TheConquestoftheUniverseCloning(建议用时40分钟)Ⅰ.阅读理解A(2017·亳州模拟)HaveyouseenJurassicPark?Inthisfilm,scientistsuseDNAkeptfortensofmillionsofyearstoclonedinosaurs.Theyfindtrouble,however,whentheyrealizethattheclonedcreaturesaresmarterandmoredangerousthanexpected.That’sno
2、thingmorethanafiction.Butcouldwereallycloneendangeredanimals? Todate,themostsuccessfulattempttodosowasthecloningofagaur,arareox-likeanimalfromsoutheastAsia.Scientistsusedacowtobringtheclonedbabygaur,namedNoah.Twodaysafterbirth,however,Noahdiedfromacommonbacterialinfect
3、ion.OtherendangeredspeciesthatmaybeclonedincludetheAfricanbongoantelope(羚羊),theSumatrantiger,thecheetah(猎豹),andthegiantpanda.Next,couldwereallycloneextinctanimals?Intheory?Yes.Todothis,youneedawell-keptsourceofDNAfromtheextinctanimalssuchasawoollymammoth(毛象),aTasmaniant
4、iger,orevenadinosaur,andacloselyrelatedspecies,stillliving,whichcouldserveasasurrogatemother. Inreality?Probablynot.Ontheonehand,it’snotlikelythatextinctanimals’DNAcouldsurviveundamagedforsuchalongtime.Cloningextinctanimalsasawoollymammoth,aTasmaniantiger,oradinosauris
5、muchmoredifficultduetothelackofproperlywell-preservedDNA.Ontheotherhand,forexample,agaurcanhaveacowasasurrogatemother,definitelynotamonkey.Butwhataboutanextinctanimalasuniqueasthepanda?Whatspeciescouldpossiblyserveasasurrogatemother?Cloningpresentsmanyexcitingpossibilit
6、ies.However,evenifextinctanimalsarebroughtback,theycouldnotsurviveintoday’sworld.Notonlydomostextinctanimalshavenohabitattolivein,buttheotherplantsandanimalstheydepended9onforfoodmayalsobegoneaswell.【文章大意】本文主要讲了作者对克隆动物的看法。1.Itcanbelearnedfromthetextthat______.A.scientis
7、tshaveclonedtheAfricanbongoantelopeB.boththebongoantelopeandthegiantpandaliveinAsiaC.thegaurlivesinAsiaandisendangeredD.thegaurisanextinctspecies【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
8、南亚的一种稀有的动物。故选C。2.Theunderlinedwords“asurrogatemother”inParagraph5probablyrefertoafemalewho______.A.contributes