高二英语人教版选修8 unit2 Cloning Reading 课件.ppt

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1、cloningUnit2ReadingHowmuchdoyouknowaboutcloning?Quiz:Cloningisawayofmakinganexactcopyofanotheranimalorplant.Itcanbedividedintonaturalcloneandman-madeclone.Anaturalcloneisonethatoccursinnatureandaman-madecloneisonethatisprocuredthroughhumanintervention(介入，干预).What

2、'sclone?Arethefollowingclonesthesame?Ifnot,whatisthedifference?NO.Thefirsttwoareman-madeclones,theresttwoarenaturalclones.2001cloningcattle2002cloningcats2005cloningdogsCloning:WhereisitLeadingus?ReadingSkimming___Cloninghastwomajorusesandsuccessfulclone.___(defi

3、nition)Cloningisawayofmakinganexactcopyofanotheranimalandplant___TheeffectofDolly.___People’sreactiontocloninghumanbeings.___TheproblemsofDolly.21453Thirdreading-----"True"or“False"1.Cloningmeansmakingachildofanotheranimalorplant.2.Gardenerscanmakealotofmoneybycl

4、oningplants.3.Cloninganimalsisascomplicatedascloningplants.FTF4.Dollythesheepwasthefirstsuccessfulcloneofamammal.5.Naturalcloneshappeninanimalsaswellasinplants.TTCloningisawayofmakinganexactcopyofanotheranimalandplant.Whatiscloning?Ithappensbothin______andin_____

5、__.Ithastwokinds:plantsanimalsNaturalcloneMan-madeclonePara1Thedefinitionofcloning1.Howmanymajorusesdocloninghave?Firstly,…commercial…Secondly,…research…2.WhenwasthecloningofDollythesheepborn?Para21996ThemajorusesandproceduresofcloningAtfirst,thefactthatDollydeve

6、loped______inanaturalwaywas__________.Later,thenews_____shelivedforsixyears,halfthelengthofthelifeofthe______onewas__________.Finally,theproblemthatoccurredtothescientistswasthataclonedanimallives_____________theoriginalone.Para3TheproblemsofDollynormallyencoura

7、gingorginalthataslongas/shorterthan/longerthandisturbingshorterthanTheword“controversial”inpara4probablymeans____________.A.complicatedB.arguableC.importantPara4TheimpactofDollyTrueorfalse:1Peoplefearedthatcloningevilleaderswoulddoharmtotheworld.2Alltheresearchin

8、tohumanbeingswillbeforbidden.3Somecountrieswillusecloninginawiseway.Para5People’sreactiontocloningHumanbeings.Manygovernmentsforbadereserchintohumanbeings.thea