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页数:8页
时间:2019-04-22
《2019版高考英语一轮复习unit2cloning夯基提能作业新人教版》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、Unit2 CloningⅠ.阅读理解ATherearemanywaysinwhichhumancloningisexpectedtobenefitmankind.Belowisalistthatisfarfromcompletion.Dr.RichardSeed,oneoftheleadingproponents(支持者)ofhumancloningtechnology,suggeststhatitmaysomedaybepossibletoreversetheagingprocessbecauseofwhatwelearnfromcloning.Scienti
2、stsbelievethattheymaybeabletotreatheartattackvictimsbycloningtheirhealthyheartcellsandinjectingthemintotheareasoftheheartthathavebeendamaged.HeartdiseaseisthenumberonekillerintheUnitedStatesandseveralotherindustrializedcountries.Therehasbeenabreakthroughintheresearchonhumanstemcells.E
3、mbryonic(胚胎的)stemcellscanbegrowntoproduceorganstorepairorreplacedamagedones.Skinforburnedvictims,braincellsforthebraindamaged,hearts,lungs,livers,andkidneyscouldbeproduced.Bycombiningthistechnologywithhumancloningtechnologyitmaybepossibletoproduceneededorgansforsufferingpeoplethatwill
4、befreeofrejectionbytheirimmunesystems.ConditionssuchasAlzheimer’sdisease,Parkinson’sdisease,diabetes,heartfailure,andotherproblemsmaybemadecurableifhumancloninganditstechnologyarenotbanned.Despitegettingafairamountofpublicityinthenews,currenttreatmentsforinfertility(不生育),intermsofperc
5、entages,arenotverysuccessful.Oneestimateisthatcurrentinfertilitytreatmentsarelessthan10percentsuccessful.Couplesgothroughphysicallyandemotionallypainfulproceduresforasmallchanceofhavingchildren.Manycouplesrunoutoftimeandmoneywithoutsuccessfullyhavingchildren.Humancloningcouldmakeitpos
6、sibleformoreinfertilecouplestohavechildrenthaneverbefore.1.Thepassagemainlydealswith . A.theproblemswithhumancloningB.thedisadvantagesofhumancloningC.theadvantagesofhumancloning8D.thedifferentwayshumancloningisdone2.AccordingtoDr.RichardSeedwecanusecloningtechnology . A.tomakepeop
7、lelookyoungerB.tomakepeoplelivelongerC.tocurepeopleofmanydiseasesD.toproducemoreanimals3.Fromthepassagewecaninferthat . A.cloninghasalreadybeenusedtotreatheartdiseasesB.wecantreataman’sheartdiseasebycloningothers’heartsC.mostpeopleinindustrializedcountriessufferfromheartdiseasesD.mo
8、repeo
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