Unit+9+Human+Biology+Lesson+1+To+clone+or+not+to+clone高中英语北师大版（2019）选择性必修第三册

Unit9HumanBiologyLesson1Tocloneornottoclone?Whatdoyouknowaboutcloning?Whatadditionalinformationwouldyouliketoknow?Usethewordsandphrasestohelpyou.celltoeditgenestodevelopartificiallytobreakthetechnicalbarrierspeciesidenticalgenestomakeanexactcopyoftoproduceanimalmodels人工培育打破技术障碍精确复制生产动物模型1.现在完成时表示过去的动作或状态持续到现在，对现在造成的影响，可能持续发生下去。have/hasdone2.现在完成进行时表示动作从过去某一时间开始，一直持续到现在，或者刚刚终止，或者可能仍然要继续下去。have/has+beendoing我已经完成了假期作业。我一直尽可能地完成假期作业。3.过去完成时表示过去某一时间或动作之前已经发生或完成的动作，以及此动作对过去的某一时间点造成的影响。haddone4.过去完成进行时表示动作从过去的过去开始一直延续到过去某个时间点。在过去某个时间点时，这个动作可能刚刚停止，也可能仍然在进行。hadbeendoing我在春节之前就已经完成了假期作业。我在来学校之前的那天上午一直在写假期作业。...的过程①Cloningistheprocessof

makinganexactcopyofaplantoranimalanddevelopingiteithernaturallyor

artificially.Naturalcloninghasbeengoing

on

for

generations.Forexample,gardenershavebeenusingaformofcloningwhentheytakeacuttingfromaplantandplaceitina世世代代园丁goon发生;进行要么...要么...一种形式when引导时间状语从句n.(用来插种的)插枝，插条...的过程对...精确复制suitablemedium,suchassoil.Anotherexampleofnaturalcloningisidentical

twins,whoareproducedfromthesameegg.相同的例如who引导非限制性定语从句，充当主语，修饰identicaltwins②Foryears,therehadbeenattemptstocloneanimalsartificially.ThefirstsuccessfullyclonedanimalwasasheepnamedDollyin1996.Atfirst,Dollygrewnormally,butlatershedevelopedanillness

(thatismorenormallyfoundinmucholderanimals.)Shelivedforsixandahalfyears,起初much修饰比较级患病attempttodosth.试图做某事过去分词作后置定语that引导定语从句，修饰illnessonlyhalfthelifeofthesheep(fromwhichshewascloned.)AfterDolly,scientistshaveclonedmorethan20mammalspecies,includingcamels,cattle,deer,dogs,goatsandmice.However,theyhavefoundasimilarpatternofhealthproblemswiththeseotherspeciesaswell.Thishasledto

超过leadto引起也“介词+关系代词”引导的定语从句相似的健康问题questionssuchas,“Willthisbeamajorissueforallclonedanimals?”“Willitcontinuetohappenforever?”.主要问题continuetodosth.继续做某事

1.Whatcanbeinferredfromthetextaboutaclonedanimal?()A.Itusuallylivesaslongastheoriginalone.B.Itusuallyliveslongerthantheoriginalone.C.Itusuallydiesearlierthantheoriginalone.D.Itisusuallyashealthyastheoriginalone.C2.Whatiscloning?________________________________________________________________________________3.Whatexamplesofnaturalcloningaregiven?________________________________________________________________________________4.TrueorFalse

Thefirstsuccessfullyclonedanimalwasasheep

namedDollyin1997.()

Thenormallifespanofsheepisabout13years.()CloningistneprocessofmakinganexactcopyofaplantoranimalAnexampleofnaturalclningistakingacuttingfromaplantandputtingitinsoil,andanotherisidenticaltwinsTF③InJanuary2018,thecloningoftwolong-tailedmonkeys,ZhongZhongandHuaHua,wasannouncedbyChinesescientists.Theywerethefirst-everprimates(theorderofmammals

whichincludeapes,monkeys,andhumans)tohavebeencloned!首次的，前所未有的

the+序数词+名词+todosth第...个做某事的...n.目引导定语从句，修饰先行词mammals

Incomparisonwithotherspecies,cloningprimateshasprovedtobe“muchharder”,anddoingsowithnon-reproductivecellswasevenmorecomplicated.与……比较provetobe

被证明是，证明为Dr.SunQiang,directoroftheresearchteam,saidtheyhadbeenwhollydevotedtotheresearchandhadbeentakingcareofmorethan1,000monkeys24hoursaday,7daysaweekformorethan5years.Therehadbeenanumberoffailuresbeforetheyeventuallyfoundawaytosuccessfullycloneamonkey.bedevotedto(doing)

专心于/致力于…takecareof

照顾许多

区分：thenumberof

...的数量

做某事的方法Thereason(theyworkedsohardtobreakthistechnicalbarrier)wastogetanimalswitheditedgenesandproduceanimalmodels(that

arehelpfulformedicalresearchandhumanhealth.)省略why的定语从句，修饰先行词为reasonbehelpfulfor

对...有帮助that引导定语从句，修饰先行词animalmodels1.Dr.SunQiangdescribetheresearchby()A.listingnumber B.givinganexampleC.makingacomparison

D.introducingaconcept2.WhydidChinesescientistsworksohardtobreakthistechnicalbarriertocloneZhongZhongandHuaHua?（

）A.Theythoughtithelpfulformedicalresearchandhumanhealth.B.Theywantedtoearnmuchmoneyandfameaswell.C.Theycouldbethefirsttohaveclonedprimatesspices.D.Theywantedtosurpasstheotherscientists.AA④Thesuccessfulcloningofprimateshasledtoworldwidepraiseasahugebreakthrough(that

mightleadto

curesforvariousdiseasesandmayalsooffercluesonhowtopreventtheagingprocess).Withthistechnology,wehavethepotentialto

raise

alargenumberof

monkeyswithidenticalgenesinashort

amountoftime,andwecaneven大量的引起，导致培育；提出；引起；举起衰老进程引导定语从句，修饰先行词breakthrough有可能changetheirgenestosuitresearchneeds.Thiscouldhelpsave

researchtime,reducethenumberof

animals(requiredfortesting),producemoreaccurate

results,andleadtomoreeffectivetreatments....的数量savetime节约时间过去分词作后置定语⑤Cloning,however,continuestobeanissue

(thatcausesagreatdealofdisagreementandprovokesstrongemotions).

While

somepeoplebelieveitiscrucialforscientificadvancement,othersraisemoralconcerns.becrucialto/for...

对…至关重要大量的

(后跟不可数名词)while引导的让步状语从句“尽管”itis+adj.+forsb.+todosth.对某人而言做某事是...的引导定语从句，修饰先行词issueTheybelieveitisboundtoleadtothecloningofotherspecies,andtheyworryabouttheethicalquestions

(thisraises.)Forexample,theywonderifclonesshouldbetreatedasobjectsorasindividualswiththeirownidentity.担心被作为；当作……来看一定省略that/which的定语从句if引导宾语从句”是否”Furthermore,clonesmaybeviewedasmerecopiesoforiginalsthusbeingseenasinferior.Finally,theyworrythatsomeorganisationsmayabusethetechnologyforunethicalpurposes.而且被看作是

beseenas

被视为that引导宾语从句

What

are

the

benefits

of

cloning

ofprimates?curesforvariousdiseasespreventtheagingprocesssaveresearchtimereducethenumberofanimalsrequiredfortestingproducemoreaccurateresultsleadtomoreeffectivetreatments1.Whatcanweusetheskillofcloningtodo?()Tobringaboutglobalpeace.Tocreateotherfamousscientists.Tocuresomespecialdiseases.Tocloneamoreperfectselftotheworld.2.Whatcanweinferfrompara4-5?()A.Cloninghaswonfirmsupportfromthepublic.B.Mostpeopleareconcernedaboutanimalcloning.C.Cloningshouldbeforbiddenbecauseofmoralconcerns.D.Peoplehavedifferentattitudestowardscloning.CD⑥Sofar,itisstillunknown(whatwillhappentoZhongZhongandHuaHuaastheygrowup).Researchersinsistthatthescienceofcloningshouldbefurtherexploredandadvanced.AsEinsteinsaid,“Scienceisapowerfulinstrument.Howitisused,whetheritisablessin