Book8Unit2Cloning

Period1Warmingup&Reading

Cloning:Whereisitleadingus?

01PARTONEWarming-upStep1WordsReviewdifferexactidenticalcommercialcomplicatedundertakepayoffcastdownobjectionconservativevi.不同adj.精確的adj.同一的；一模一樣的adj.商業(yè)的；貿(mào)易的adj.復(fù)雜的；

vt.著手；從事；承擔(dān)得到好結(jié)果；取得成功；償清沮喪；不愉快n.不贊成；反對；異議adj.保守的；守舊的nucleussomaticembryocarrierimpactattainmoralforbidaccumulateinfavourofn.原子核；中心adj.軀體的；肉體的；細(xì)胞體的n.胚胎；萌牙時期n.攜帶者；搬運工；運輸工具n.撞擊；沖擊；巨大的影響vt.獲得；到達(dá)adj.道德的；倫理的vt.禁止；不準(zhǔn)vt.積累；聚保贊成；支持WordsReviewStep2EnjoyavideoofcloneWhatiscloning? Cloningistheprocessofmakinganidentical________ofaliving________orplant.Step3CloneQuizcopyanimal Acloneanimalorplantareproducednaturallyorcreatedbypeople.Howmanykindsofcloningarethere?Step3CloneQuizisproducedthroughhumanintervention(介入).Man-madeclone_________cloneoccursinanaturalformofcloningwithouthumanhelp.NaturalStep3CloneQuizLookatthefourpicturesandtell:whichonesarenaturalclones

whichonesareman-madeclones.Dollythesheepman-madeclonesStep3CloneQuiznaturalclonesAstrawberryplantStep3CloneQuizGrowingnewplantsGardenerstakecuttingsfromgrowingplantstomakenewones.man-madeclonesStep3CloneQuizTheyarebornnaturallyandidenticalinsexandappearance.naturalclonesTwinsStep3CloneQuiz02PARTONEPre-readingCloning:whereisitleadingus?What

iscloning?acloningsheep

procedurethefutureofcloning...Step1predictionGuesswhatthepassagemaybetellus?03PARTONEWhile-readingThetextismainlyaboutthe__________ofanimal

cloningandthelifeofDollythesheep,aswellasthe________whycloningisstillcontroversial(有爭議的).procedureReadthepassagequicklyandcompleteitsmainidea.reasonsMatchthemainideaofeachparagraph.thefirstsentenceandkeywords!A.Twomajorusesandtheprocedureofcloning.B.TheproblemsofDolly.C.TheeffectofDolly.D.People'sattitudetowardscloningE.Thedefinition（定義）ofcloning.Para1.Para2.Para3.Para4.Para5.Cloningisawayofmakinganexactcopyofanotheranimalandplant.Q1:Whatiscloning?Task1：Readparagraphs1-2carefullyandanswerthequestionsQ2:Whataremajorusesofcloning?Firstly,…commercialquantitiesofplants.Secondly,…medicalresearchonanimal.Task2：Lookatthepictureonthe page11.Choosethesuitablewordstofinishthechartbelow.PairWorkAneggcellThenucleusTheeggcell

AsomaticcellThenucleusistakenoutofthesomaticcellThenucleusTheyarejoinedThecelldividesandgrowsintoanembryo

ThecarrierPutintoThelambisthecloneofFemalesheepAFemalesheepBSheepBFemalesheepCgenesProcedureofCloningaSheepC.eggcell（暖細(xì)胞）somaticcellA.eggcellwithoutnucleus(無核卵細(xì)胞)B.nucleus（細(xì)胞核）E.jionedF.dividesandgrowsD.putG.carrier1.____2.____3.____Theyare4.___usingelectricity.Thecell5.____intoanembryo.Theembryois6.____intothe7.___.CABEFDGTask2GroupworkTask3：readparagraph3-4tosumuptheproblemsandeffectofDolly.Atfirst,itwasencouragingthatDolly____________________________.However,itwas____________thatDollybecomeseriously.Then,cloningbecame____________.seemeddevelopnormallydisturbingcontroversialTask4:People’sattitutetocloningReadpara5anddecidewhetherthesestatementsareTrueorFalse.1.PeoplefearedthatClonedHitlerswoulddoharmtotheworld.2.Allgovernments

forbaderesearchinto humanbeings.3.Somecountries

willusecloninginawiseway.2.SomegovernmentsTTF04PARTONEPost-readingtheauthordoesnotstateanypersonalopinionaboutcloning.A.Objective(befair)B.Negative(beagainstit)C.Positive(beinfavorofit)Thewriter'sattitudetowardscloningBecause________________________________________________________Disadvantages

ofcloningAdvantagesofcloningDiscuss&Summary4.Cloningcanhelpsaveendangeredanimals.1.Animalclonesmaydeveloptheillnessesofolderanimals.2.Animalclonesmaylive_______thantheoriginalanimals.shorter3.______leadersmaywanttoclonethemselvestoattaintheirambitions.Evil4.Religiousleadersraised

.moral

questions1.Useittoproduce___________mercial2.Cloningplantscanbevaluableforresearchon________________new

plantspecies.3.Cloningcanbevaluablefor_____________onanimals.

medicalresearch Areyouinfavourofcloningoragainstit?andwhy?GroupDiscussionWhat'syourattitude?Asacoinhastwosides,everythinghastwoaspects.___________,ifcloningisusedinacorrectwayitcanbringmanyconveniencetous.________________,ifcloningisusedinanevilwayitcancausemuchtrouble.

ConclusionOnonehandOntheotherhandTherefore,weshouldusecloninginacorrectandwiseway.Homework1.Writedownyourattitudetocloning(≥80words);2.

Readthepassageagainandmarkouttheusefulexpressions.Thankyou!LOGO3developmentstagesofclone：①bacterial（細(xì)菌）cloning;②animalscloning;③DNAcloning;thecorrectorder：_____________Step2CloneQuiz①③②Wher