高中英语-unit 2 Cloning Reading and Comprehending教学课件设计

Unit2cloning

cloningWhat’sthedistinctionbetweennaturalcloningandman-madecloning?Naturalcloneisonethatoccurs

inanaturalformofcloning

withouthumanhelp.Man-madeclone

isonethat

producedthroughhuman

intervention(介入).Lookatthesepicturesanddiscusswhichonesarenaturalclonesandwhichonesareman-made.Explainhowtheydiffer.DiscussionAstrawberryplantNaturalcloneThenewplantsthatgrowfromtherunnersareexactcopiesoftheoriginalplant.GrowingnewplantsMan-madecloneTwinsTheywerebornnaturallyandidenticalinsexandappearance.NaturalcloneDollythesheepMan-madecloneIn1996,asheepcalledDollywasborn.Itisthefirstmammaltobecloned.Itisconsideredtobethegreatestsuccessinthedevelopmentofcloning.ComprehendingCloning:Whereisitleadingus?Themainideaofthetextis____A.Animalcloningisveryvaluableandcanbenefittheworld.B.AnimalcloningcouldbemisusedbybadpeoplesoitmustbeforbiddenC.AnimalcloningiswelldevelopedbecauseDollythesheepwasborn.D.Animalcloningraisedargumentsandscientistsarenotsureaboutitsfuture.TASK1:Mainidea

TASK2:Readthroughthepassageandmatchthemainideaofeachparagraph.B.Thedefinitionofcloning.Para1.Para2.

Para3.

Para4.Para5.A.ThemajorusesandproceduresofcloningE.TheproblemsofDollyC.TheeffectofDolly.D.People’sreactiontocloningCarefulReading

ReadthetextindetailsCloningisawayofmakinganexactcopyofanotheranimalandplant.Whatiscloning?Para1(1min)Thedefinitionofcloning1.Howmanymajorusesdocloninghave?

Firstly,…commercial…Secondly,…research…2.WhenwasthecloningofDollythesheepborn?Para22mins1996ThemajorusesandproceduresofcloningTheprocedureworkslikethis:Theprocedureworkslikethis:Atfirst,thefactthatDollydeveloped______inanaturalwaywas__________.Thencamethe______newsthatDollyhadbecomeseriouslyill.Cloningscientists__________________tofindthatDolly’sillnessesweremore____________.Finally,theproblemthatoccurredtothescientistswasthataclonedanimallives_____________theoriginalone.Para32minsTheproblemsofDollynormallyencouragingwerecastdowndisturbingappropriatetoamucholderanimalshorterthanPara41minTheeffectofDollyimpactDolly’sappearanceraised_________objectionsandhadagreat_______themediaandpublicimagination.Itbecamearguable(____________).astormofimpactoncontroversialTrueorfalse:PeoplefearedthatClonedAdolfHitlerwoulddoharmtotheworld.2Humancloningareencouraged.Para5People’sreactiontocloningManygovernmentsforbaderesearchintohumanbeings.theauthordoesnotstateany

personalopinionaboutcloning.A.Objective(befair)

B.Negative(beagainstit)C.Positive(beinfavorofit)Thewriter’sattitudetowardscloningBecause_________________________________________________________________Fromthelastparagraphwecaninfer

that____.A.CloningwillcometoanendbecauseoftheobjectionsB.ClonedhumanbeingswillbeproducedinthenearfutureC.ManycountrieswillusecloninginawisewayD.AlltheresearchintohumanbeingswillbeforbiddenCPracticeactivity:Debate

Areyouinfavorofcloningoragainstcloning?Stateyourpointofviewonit.ＶＳForAgainstGROUP1,2GROUP3,4

Cloningisvaluablefor________researchonanimals.medicalAdvantagesofcloning

Medicalcloningcouldproduce_____forseriousillnessesinhumans.cures

Cloningplantscanproducelarge________ofplantsfor____.quantities

Cloningplantscanbeusefulforresearchon________________.speciesplantsalenewProblemsofcloning

Animalclonesmaydevelopthe______

ofolderanimals

Animalclonesmaydie_______thantheoriginalanimals.

__________maywanttoclonethemselves.

Thereare______________tocloninghumanbeings.illnessesyoungerEvilleaders

moralobjectionsWecanconclude_______Cloningisgoodforus.Cloninghastwoaspects.Ifcloningisusedinacorrectwayitcanbringmanyconveniencetous.Ifcloningisusedinanevilwayitcancausemuchtrouble.Weshouldusecloninginawiseway!Asacoinhastwosides,everythinghastwoaspects.Ononehand,ifcloningisusedinacorrectwayitcanbringmanyconveniencetous.Ont