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北师大版高中英语新教材（选择性必修第三册）课文（Unit9|LESSON1）Lesson1ToClone ornot toClone第一课克隆还是不克隆
1.（克隆）is the process of making an exact
2.（复制）of a plant or animal anddeveloping it either naturally or
3.（人工的）.Natural cloninghas beengoing onforgenerations.For example,gardeners havebeen usinga formof cloningwhen theytakea cuttingfrom a plant andplace itin asuitable medium,such assoil.Another exampleof natural cloning is
4.（完全相同的）
5.（双胞胎），who areproduced fromthe sameegg.For years,there had been attemptsto clone animals artificially.The firstsuccessfullycloned animal was a sheep named Dolly in
1996.At first,Dolly grewnormally,but latershe developedan illness that is more normally found in much olderanimals.She livedfor sixand a half years,only halfthe lifeof thesheep fromwhich shewas cloned.After Dolly,scientists havecloned more than
206.（哺乳动物）species,including
7.（骆驼），
8.（牛）,deer,dogs,
9.（山羊）and mice.However,they havefound asimilar pattern of health problems with these other speciesas well.This hasled toquestions such as,“Will thisbe a major issue for all clonedanimals”Will itcontinue tohappen
10.（永远）In January2018,the cloning of twolong-tailed monkeys,Zhong Zhongand HuaHua,was announcedby Chinesescientists.They werethe first-ever
11.（灵长目动物）（the orderof mammals which include
12.（猿，monkeys,and humans）to havebeen cloned!In
13.（匕匕较）with other species,cloning primates has provedtobe“much harder,and doingso with non-14（.繁殖的）cells was even more complicated.Dr.Sun Qiang,director of the researchteam,said theyhad been
15.（完全的）devotedto the research and had been taking care of more than1,000monkeys24hours aday,7days aweek formore than5years.There hadbeen anumber offailures beforetheyeventually found a wayto successfullyclone amonkey.The reasonthey workedso）hard to break thistechnical
16.（障碍）was toget animalswith
17.（编辑
18.（基因）and produceanimal modelsthat arehelpful for medical research and human health.The successfulcloning ofprimates hasled toworldwide praise as ahugebreakthrough that might lead to cures for various diseases and may also offer
19.）（线索on how to preventthe agingprocess.With thistechnology,we havethepotential toraise alarge number of monkeyswith identical genes in a short amount oftime,and wecan even change their genes to suit research needs.This couldhelp saveresearch time,reduce thenumber ofanimals requiredfor testing,produce more
20.（准确的）results,and leadto more effective treatments.Cloning,however,continues to be anissue thatcauses agreat dealofdisagreement and
21.（引起）strong
22.（感情）.While somepeople believeit is
23.（至关重要的）for scientific
24.（进步）,others raisemoral concerns.They believeit is
25.（肯定会）to leadto cloningof other species,and they worry aboutthe
26.（关于伦理的）questions this raises.Forexample,they wonderif clonesshould betreated asobjects or as individualswith theirownidentity.Furthermore,clones maybe viewedas
27.（仅仅）copies oforiginals thusbeingseen as
28.（彳氐级的，差的）.Finally,they worrythat someorganisations may
29.（滥用）the technologyfor
30.（不道德的）purposes.So far,it isstill unknownwhat willhappen toZhong Zhongand HuaHua astheygrow up.Researchers insistthat thescience of cloning should be furtherexplored andadvanced.As Einsteinsaid,Science isa powerfulinstrument.How it is used,whetherit isa
31.（幸运）or a
32.（祸根）to mankind,depends onmankind andnot ontheinstrument.A knifeis useful,but itcan alsokill.”
二、短语Cloning isthe processof makingan exactcopy ofaplantor animalanddeveloping iteither naturallyor artificially.Natural cloninghas beengoing on
1.（彳艮久）.For example,gardeners havebeen usinga formof cloningwhen theytake acuttingfrom aplant andplace itin asuitable medium,such assoil.Another exampleofnatural cloningis identicaltwins,who areproduced fromthe sameegg.For years,there2（.尝试）to clone animals artificially.The firstsuccessfully clonedanimalwas asheep namedDolly in
1996.At first,Dolly grewnormally,but latershedeveloped an illnessthat ismore normallyfound inmucholder animals.She livedforsix and ahalf years,only halfthe lifeof thesheep fromwhich she wascloned.AfterDolly,scientists havecloned more than20mammal species,including camels,cattle,deer,dogs,goats andmice.However,they havefound asimilar patternof healthproblemswith theseother speciesas well.This hasled toquestions such as,“Will thisbe amajor issuefor allcloned animals”Will itcontinue tohappen forever”.In January2018,the cloning of twolong-tailed monkeys,Zhong Zhongand Hua（Hua,was announcedby Chinesescientists.They werethe first-ever primatesthe orderofmammals whichinclude apes,monkeys,and humans）to havebeen cloned!
3.（对比）other species,cloning primates has provedto bemuch harder”,and doingso withnon-reproductive cellswas evenmore complicated.Dr.Sun Qiang,director oftheresearch team,said they
4.（全身心地投入）the research andhadbeentakingcare ofmorethan1,000monkeys24hours aday,7days aweek formorethan5years.There hadbeen anumber offailuresbefore they eventually founda wayto successfullycloneamonkey.The reasontheyworked so hard tobreak this
4.（技术壁垒）was toget animals
5.（经过基因编辑的）and produceanimal modelsthat arehelpful formedical researchand humanhealth.The successfulcloningofprimateshasled to
6.（世界赘誉）as a
7.（巨大的突破）thatmight leadtocuresforvarious diseasesand mayalso offerclues onhowto
8.（延缓衰老进程）.With thistechnology,we
9.（有可能）raisealarge number of monkeyswith identicalgenes in a shortamount of time,and wecan evenchange theirgenes to
10.（适应研究需要）.This couldhelp saveresearch time,reduce thenumber ofanimalsrequired for testing,produce moreaccurate results,and leadto moreeffectivetreatments.Cloning,however,continues tobe anissue thatcauses agreat dealofdisagreement and
11.（激起强烈的反对情绪）.While somepeople believeit iscrucial forscientificadvancement,others raisemoral concerns.They believeit
12.（必定）lead tocloningof otherspecies,and they worry aboutthe
13.（伦理I问题）thisraises.Forexample,they wonderif clonesshould betreated asobjects or as individualswith theirownidentity.Furthermore,clones maybe viewedas merecopies oforiginals thusbeingseen asinferior.Finally,theyworrythat someorganisations may
14.（滥用寸支术）for
15.（不道德的目的）.So far,it isstill unknownwhat willhappen toZhong Zhongand HuaHua astheygrow up.Researchers insistthat thescience ofcloning shouldbe furtherexplored andadvanced.As Einsteinsaid,Science isa powerfulinstrument.How it is used,whetherit isa blessingoracurse tomankind,depends onmankind andnot onthe instrument.Aknife isuseful,but itcan alsokill.”
三、语法填空Cloning istheprocessofmakinganexactcopy ofaplantor animalanddevelopingiteithernaturallyor artificially.Natural cloninghas beengoing
1.forgenerations.For example,gardeners havebeen usinga formofcloningwhen theytakea cuttingfrom aplant andplace itinasuitable medium,suchassoil.Another example（）ofnaturalcloningis
2.identify twins,who areproduced fromthe sameegg.For years,there hadbeen attemptsto cloneanimals artificially.The first
3.（）successful clonedanimalwas asheepnamedDollyin
1996.At first,Dolly grewnormally,but latershe developedanillnessthatismorenormallyfoundinmuch
4.（）old animals.She livedfor sixandahalfyears,only halfthe lifeofthesheep from
5.shewascloned.After Dolly,scientists havecloned morethan20mammal species,including camels,cattle,deer,dogs,goats andmice.However,they havefound asimilarpatternofhealthproblemswiththeseotherspeciesas well.This hasled toquestionssuchas,Will thisbeamajorissueforallclonedanimals”“Will itcontinueto happenforever”.In January2018,the cloningof twolong-tailed monkeys,Zhong Zhongand HuaHua,was announcedby Chinesescientists.They werethe first-ever primatesthe orderofmammalswhichinclude apes,monkeys,and humansto havebeen cloned!Incomparison withotherspecies,cloning primateshas provedtobe“much harder”,and
6.do sowithnon-reproductive cellswasevenmorecomplicated.Dr.Sun Qiang,director oftheresearchteam,said theyhadbeenwholly devotedto theresearchandhadbeen takingcareofmorethan1,000monkeys24hours aday,7days
7.week formorethan5years.There hadbeen anumberoffailures beforetheyeventuallyfoundaway tosuccessfullycloneamonkey.The reasonthey workedsohardtobreakthis technicalbarrierwas toget animalswith
8.edit genesand produceanimal modelsthat arehelpfulformedicalresearchandhumanhealth.The successfulcloningofprimateshasled toworldwide praiseasahugebreakthrough thatmightleadto
9.cure forvariousdiseasesandmayalsoofferclueson howto preventthe agingprocess.With thistechnology,we havethe potentialtoraise alarge numberof monkeyswithidenticalgenesinashortamountoftime,and wecanevenchangetheirgenestosuitresearchneeds.This couldhelp saveresearchtime,reduce thenumberofanimals requiredfortesting,produce moreaccurate results,andlead tomoreeffectivetreatments.Cloning,however,continues tobe anissue that
10.cause agreat dealofdisagreement andprovokes strongemotions.While somepeople believeit iscrucial forscientificadvancement,others raisemoral concerns.They believeitisbound tolead tocloningofotherspecies,and theyworry aboutthe ethicalquestions thisraises.Forexample,they wonderif clonesshouldbetreated asobjects oras individualswith theirownidentity.Furthermore,clones maybe viewedas merecopies oforiginals thusbeingseen asinferior.Finally,theyworrythat someorganisations mayabuse thetechnologyfor unethicalpurposes.So far,itisstill unknownwhat willhappen toZhong Zhongand HuaHua astheygrow up.Researchers insistthat thescience ofcloning shouldbe furtherexplored andadvanced.As Einsteinsaid,Science isa powerfulinstrument.How itis used,whetherit isa blessingoracurse tomankind,depends onmankind andnot onthe instrument.Aknife isuseful,but itcan alsokill.”
四、翻译Researchers insistthat thescience ofcloning shouldbe furtherexplored andadvanced.As Einsteinsaid,Science isa powerfulinstrument.How itis used,whetherit isa blessingoracurse tomankind,depends onmankind andnot onthe instrument.Aknife isuseful,but itcan alsokill.”。
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