2019版高考英语一轮复习unit2cloning夯基提能作业新人教版

2019版高考英语一轮复习unit2cloning夯基提能作业新人教版

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时间:2019-04-22

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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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