2023学年完整公开课版Unit2Cloning(Reading)公

Unit2CloningNaturalcloneorMan-madeclone？DollythesheepAstrawberryplantGrowingnewplantsTwinsisonethatoccursinnature.

Anaturalclone

isonethatisproducedthroughhumanintervention.(人类介入）Aman-madecloneDollythesheepShewas

while

theotherswereborn

.HowdoesDollydifferfromothersheep?man-madecloneclonednaturallySkimthepassageandgetthemainideaofeachparagraph.Para1Para2Para3Para4Para5The___________

ofcloningThetwomajor_____andthe__________ofcloningThe__________ofDollyThe________ofcloninginsocietyThe____________towardscloningusesproblemseffectproceduredefinitionattitudes

Thepassagetellsusthatanimalcloningraisedandscientistsarenotsureaboutits.argumentsfutureWhat’sthewritingstyle?Expositive(说明性的)Argumentative（议论性的）Narrative（叙事性的）Descriptive（描写性的）★What’sthemainideaofthepassage?Cloninghappensbothin______andin_______.Theycanbeclonedby________and_______.plantsanimalsthemselveshumansNaturalcloneMan-madeclonePara1

Thedefinitionofcloning1.Theword“straightforward”means______.uncomplicatedhonestfrankdifficultPara2Themajorusesandproceduresofcloning2.ThecloningofDollythesheepsucceededbecause____.A.itseasiertocloneasheepthanotheranimalsB.thescientistsweredeterminedandworkedhardwithpatienceC.thescientistswererewardedandgotlotsofmoneyD.manyotherattemptstoclonemammalsfailedThedeterminationandpatienceofthescientistspaidoff.(L9)3.ThelambisthecloneofthecellfromsheepBbecause.A.itprovidestheeggcell

B.itgivesbirthtothelamb

C.itprovidesthenucleus

D.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:Fourfemalesheepparticipateinthecloningofanewsheep.Electricityisneededintheprocedure.SheepBprovidesasomaticcellfortheclone.ThelambistheexactcopyofsheepA.TFTFAtfirst,

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.importantPara4TheimpactofDollyOntheotherhand,Dolly’sappearanceraisedastormofobjectionsandhadagreatimpactonthemediaandpublicimagination.TranslationTrueorfalse:1PeoplefearedthatClonedHitlerswoulddoharmtotheworld.2Alltheresearchintohumanbeingswillbeforbidden.3Somecountriestoaccumulate

evidenceoftheabundantmedicalaidthatcloningcouldprovide.Para5People’sreactiontocloningManygovernmentsforbaderesearchintohumancloning.Definition2majorusesofcloningCloningprocedureThefirstsuccessfulanimalcloneItisawayof__________________ofanotheranimalandplant.1)toproduce___________quantitiesofplants.2)Itisvaluableforresearchonnew______________andmedicalresearchon________.Cloningplants______________whilecloningofanimalsis___________Thecloningof_______________,a_____________incloningtech.makinganexactcopycommercialstraightforwardbreakthroughplantsspeciesanimalsDollythesheepcomplicatedTheproblemsofDollythesheepTheeffectofDollythesheepEncouragingnews:Itseemedtodevelop________andproduced______ina_______way.

Disturbingnews:Itlivedfor____years,halfthelengthofthelifeofthe_______sheep.Itsappearanceraisedastormof________andhadagreatimpactonthe_____andpublic___________.Itopenedeverybody’seyestothepossibilityofusing

cloningtocure_______________andevenproduce_____________.objectionshumanbeingsnormallynatural6originalimaginationseriousillnessesmediaalambArgumentsoncloning

Evilleadershopetoclone___________.Religiousleadersraised________questions.Manygovernments_______researchintohumancloning.Somecountriescontinuedto___________evidenceoftheabundantmedicalaid.moralforbadethemselvesaccumulate

Cloningisawayof_______anexactcopyofanotheranimalorplant.Cloninghastwo______uses.Firstly,gardenersuseittoproduceplants.Secondly,itis________formedicalresearchonanimals.Cloningplantsisstraightforwardbutthecloningofanimalsismore________.Theprocedureisdifficultto_______.In1996,scientistssucceededin______Dollythesheep.ThencamethedisturbingnewsthatDollywasill.________Dollylivedforsixyearsandahalf,Dolly’sappearanceraisedastormof________.Governmentbecamenervousandmany_________researchintohumancloning.Scientistsstill_______whethercloningwillhelporharmusandwhereitisleadingus.makingmajor

valuablecomplicated

undertakecloningAltogetherobjectionsforbadewonderSummaryDisadvantagesofcloningAdvantagesofcloning1.Animalclonesmay____________________ofolderanimals.1.Useittoproduce__________________ofplants2.Animalclonesmay__________thanthedonoranimals.3.Cloningcanbevaluablefor_____________________.

3.______leadersmaywanttoclonethemselves.4.Religiousleadersraised

.4.Cloningcanhelpsave

______________________

Fillinthechartdevelopthe

illnesseslivedshorterEvilmoral

questionscommercialquantities2.Cloningplantscanbevaluableforresearchon______________new

plantspecies.medicalresearchonanimalsendangeredanimals.Wecanconclude_______Cloningisgoodforus.Cloninghastwoaspects.Ifcloningisusedinacorrectwayitcanbringmanyconveniencetous.Ifcloningisusedinanevilwayitcancausemuchtrouble.Weshouldusecloninginawisewa