Unit-2-Cloning-Reading-谢师公开课课件

•What’sthedistinctionbetweennaturalcloningandman-madecloning?TwinsTheywerebornnaturallyandidenticalinsexandappearance.TwinsDollythesheepShewasclonedwhiletheotherswerebornnaturally.Dollywasa______sheep,whichwasan_______repreduction.(无性繁殖）clonedHowdoesDollydifferfromothersheep?asexualCompetition•Challengeyourself:trytoanswerthefollowingquestionsassoonaspossible.Ifanyoneofyoustandupfirstandanswerthequestionfluentlyandcorrectly,let’sgivehimorherabighand,whichmeansheorshecanobtainonescoreforyourgroup.bonus•1.Whatbenefitscanhumansgainfromcloning?•2.Whatproblemsmayarisewhenhumansarecloned?ComprehendingI.Readthroughthepassageandmatchthemainideaofeachparagraph.(3mins)Thedefinitionofcloning.Para1.Para2.Para3.Para4.Para5.ThemajorusesandproceduresofcloningTheproblemsofDollyTheeffectofDolly.People’sreactiontocloningCarefulReadingReadthetextindetailsCloningisawayofmakinganexactcopyofanotheranimalandplant.Whatiscloning?Para1(1min)Thedefinitionofcloning1.Howmanymajorusesdocloninghave?Firstly,…commercial…Secondly,…research…2.WhenwasthecloningofDollythesheepborn?Para22mins1996Themajorusesandproceduresofcloning•TheprocedureofcloningAtfirst,thefactthatDollydeveloped______inanaturalwaywas__________.Thencamethe______newsthatDollyhadBecomeseriouslyill.Cloningscientists__________tofindthatDolly’sillnessesweremore____________.Finally,theproblemthatoccurredtothescientistswasthataclonedanimallives_____________theoriginalone.Para32minsTheproblemsofDollynormallyencouragingwerecastdowndisturbingaslongas/shorterthan/longerthanappropriatetoamucholderanimalshorterthanPara41minTheeffectofDollyimpactDolly’sappearanceraised_______objectionsandhadagreat_______themediaandpublicimagination.Itbecamearguable(____________).astormofimpactoncontroversialPara53minsTrueorfalse:1PeoplefearedthatClonedOsamaBinLadenwoulddoharmtotheworld.2Humancloningareencouraged.Para5People’sreactiontocloningManygovernmentsforbadereserchintohumanbeings.Fromthelastparagraphwecaninferthat____.A.cloningwillcometoanendbecauseoftheobjectionsB.clonedhumanbeingswillbeproducedinthenearfutureC.manycountrieswillusecloninginawisewayD.alltheresearchintohumanbeingswillbeforbiddenCtheauthordoesnotstateanypersonalopinionaboutcloning.A.Objective(befair)B.Negative(beagainstit)C.Positive(beinfavorofit)Thewriter’sattitudetowardscloningBecause_________________________________________________________________Oh!myGod!Iwascloned!“哦！上帝啊！！我被克隆了！”Pairwork•Doyouwanttobecloned?•Whomwouldyouliketoclone?andwhy?Areyouinfavourofcloningpeopleoragainstcloningpeople?•Suggestanswers:•1.Cloningisawayofmakinganexactcopyofanotheranimalandplant.•Acloneisananimalorplantproducednaturallyorartificiallyfromthecellsofanotheranimalorplantandisexactlythesameasit.•2.Itcanhelpcurediseaseandcanhelpcoupleswhohavenobabytobearanewbaby.•and…•….•3.TheremaybemorebadpeoplelikeHitler.•and…•4.Inmyopinion,Idonotagree,foritmaycausemanymoralproblems.•OrasfarasIamconcerned,Iamforit,as…•5.No.TheclonedbabyalsohasthediseaseReadingNaturalcloneisonethatoccursinanaturalformofcloningwithouthumanhelp.Man-madecloneisonethatproducedthroughhumanintervention(介入).Lookatthesepicturesanddiscusswhichonesarenaturalclonesandwhichonesareman-made.Explainhowtheydiffer.DiscussionAstrawberryplantThenewplantsthatgrowfromtherunnersareexactcopiesoftheoriginalplant.富贵竹插枝即活Thegardenershouldcuttheplant,thenthecuttingproduceanothernewplant.GrowingnewplantsFillinthechartonPage12usingtheinformationfromthetext.Whichiseasiertoclone,plantoranimal?Becausecloningplantsisstraightforward,butthecloningofanimalsisverycomplicated.DiscussionHomework1.TranslatetheprocedureofcloningDollythesheepintoChinese.2.FinishEx.1,2,3,Page12.1996cloningsheeps•4.Shouldweclonehuman?Stateyouropinion.•5.Couldaparentcloneachildwhoisdyingofaterminal(致命的）illness?2001cloningcattle我国成功繁殖克隆兔体形要比普通兔大许多2002年5月中旬成功地繁殖了一只胚胎细胞克隆兔。2002cloningcats第一只克隆宠物猫克隆马及其“母亲兼姐姐”2002年4月十六日美国第一头克隆牛“艾米”产下牛犊喜作妈咪2005cloningdogs克隆的荧光小猪(左)和正常小猪(右)AstrawberryplantThenewplantsthatgrowfromtherunnersareexactcopiesoftheoriginalplant.一株草莓依靠它沿地“爬走”的匍匐茎,一年内就能长出数百株草莓苗富贵竹插枝即活Thegardenershouldcuttheplant,thenthecuttingproduceanothernewplant.TwinsTheyarebornnaturallyandidenticalinsexandappearance.