选修8-Unit2-Cloning-(Reading)--公开课-课件

NaturalcloneorMan-madeclone？DollythesheepAstrawberryplantGrowingnewplantsTwinsisonethatoccursinnature.Anaturalcloneisonethatisproducedthroughhumanintervention.(人类介入）Aman-madecloneDollythesheepShewaswhiletheotherswereborn.HowdoesDollydifferfromothersheep?clonednaturallySkimthepassageandgetthemainideaofeachparagraph.Para1Para2Para3Para4Para5The___________ofcloningThetwomajor_____andthe__________ofcloningThe__________ofDollyThe________ofcloninginsocietyThe____________towardscloningusesproblemseffectproceduredefinitionattitudesThepassagetellsusthatanimalcloningraisedandscientistsarenotsureaboutits.argumentsfutureWhat’sthewritingstyle?A.Expositive(说明性的)B.Argumentative（议论性的）C.Narrative（叙事性的）D.Descriptive（描写性的）★What’sthemainideaofthepassage?Cloninghappensbothin______andin_______.Theycanbeclonedby________and_______.plantsanimalsthemselveshumansNaturalcloneMan-madeclonePara1Thedefinitionofcloning1.Theword“straightforward”means______.A.uncomplicatedB.honestC.frankD.difficultPara2Themajorusesandproceduresofcloning2.ThecloningofDollythesheepsucceededbecause____.A.itseasiertocloneasheepthanotheranimalsB.thescientistsweredeterminedandworkedhardwithpatienceC.thescientistswererewardedandgotlotsofmoneyD.manyotherattemptstoclonemammalsfailedThedeterminationandpatienceofthescientistspaidoff.(L9)3.ThelambisthecloneofthecellfromsheepBbecause.A.itprovidestheeggcellB.itgivesbirthtothelambC.itprovidesthenucleusD.itisafemalesheep产出有核卵细胞无核卵细胞体细胞取出细胞核用电融合细胞代孕母羊细胞分裂形成胚胎Howtoproduceasheep（我也来当科学家）Trueoffalse:1.Fourfemalesheepparticipateinthecloningofanewsheep.2.Electricityisneededintheprocedure.3.SheepBprovidesasomaticcellfortheclone.4.ThelambistheexactcopyofsheepA.TFTFAtfirst,thefactthatDollyseemedtodeveloped______was__________.Then,camethenewsthatDollybecame_________.AltogetherDollylived__________________,halfthelengthofthelifeof__________.Para3TheproblemsofDollynormallyencouragingtheoriginalsheepseriouslyillsixandahalfyearsThesheepthatdonatedthesomaticcellmostprobablylived________years.A.3B.6C.9D.13Problems:Clonedanimalsmaydevelopthe________ofolderanimals.Clonedanimalsmaylives__________theoriginalone.aslongas/shorterthan/longerthanillnessesshorterthanTheword“controversial”inparagraph4probablymeans____________.A.complicatedB.arguableC.importantPara4TheimpactofDollyOntheotherhand,Dolly’sappearanceraisedastormofobjectionsandhadagreatimpactonthemediaandpublicimagination.TranslationTrueorfalse:1PeoplefearedthatClonedHitlerswoulddoharmtotheworld.2Alltheresearchintohumanbeingswillbeforbidden.3Somecountriestoaccumulateevidenceoftheabundantmedicalaidthatcloningcouldprovide.Para5People’sreactiontocloningManygovernmentsforbaderesearchintohumancloning.Definition2majorusesofcloningCloningprocedureThefirstsuccessfulanimalcloneItisawayof__________________ofanotheranimalandplant.1)toproduce___________quantitiesofplants.2)Itisvaluableforresearchonnew______________andmedicalresearchon________.Cloningplants______________whilecloningofanimalsis___________Thecloningof_______________,a_____________incloningtech.makinganexactcopycommercialstraightforwardbreakthroughplantsspeciesanimalsDollythesheepcomplicatedTheproblemsofDollythesheepTheeffectofDollythesheep•Encouragingnews:Itseemedtodevelop________andproduced______ina_______way.•Disturbingnews:Itlivedfor____years,halfthelengthofthelifeofthe_______sheep.•Itsappearanceraisedastormof________andhadagreatimpactonthe_____andpublic___________.•Itopenedeverybody’seyestothepossibilityofusingcloningtocure_______________andevenproduce_____________.objectionshumanbeingsnormallynatural6originalimaginationseriousillnessesmediaalambArgumentsoncloning•Evilleadershopetoclone___________.•Religiousleadersraised________questions.•Manygovernments_______researchintohumancloning.•Somecountriescontinuedto___________evidenceoftheabundantmedicalaid.moralforbadethemselvesaccumulateCloningisawayof_______anexactcopyofanotheranimalorplant.Cloninghastwo______uses.Firstly,gardenersuseittoproduceplants.Secondly,itis________formedicalresearchonanimals.Cloningplantsisstraightforwardbutthecloningofanimalsismore________.Theprocedureisdifficultto_______.In1996,scientistssucceededin______Dollythesheep.ThencamethedisturbingnewsthatDollywasill.________Dollylivedforsixyearsandahalf,Dolly’sappearanceraisedastormof________.Governmentbecamenervousandmany_________researchintohumancloning.Scientistsstill_______whethercloningwillhelporharmusandwhereitisleadingus.makingmajorvaluablecomplicatedundertakecloningAltogetherobjectionsforbadewonderSummaryDisadvantagesofcloningAdvantagesofcloning1.Animalclonesmay____________________ofolderanimals.1.Useittoproduce__________________ofplants2.Animalclonesmay__________thanthedonoranimals.3.Cloningcanbevaluablefor_____________________.3.______leadersmaywanttoclonethemselves.4.Religiousleadersraised.4.Cloningcanhelpsave______________________FillinthechartdeveloptheillnesseslivedshorterEvilmoralquestionscommercialquantities2.Cloningplantscanbevaluableforresearchon______________newplantspecies.medicalresearchonani