选修8Unit2Cloning市公开课一等奖省赛课微课金奖课件

Unit2CloningPeriod1Warmingup&Reading

1/27Lookatthepicturesanddiscusswhichonesare

naturalclonesandwhichonesareman-madeclones.2/27AstrawberryplantTheplantproducesitsownrunners.3/27Astem（茎）Takecuttingsfromgrowingplantstomakenewones.4/27Theyareidenticalinsexandappearance,whoareproducedfromthesameoriginalegg.5/27DogSnuppywascreatedbyKoreanandAmericanscientists6/27Shewasc______whiletheotherswerebornnaturally.Itistheexactcopyofanothersheepandthefirstclonedmammal.differentfromlonedDollythesheep7/271.Whatiscloning?Itisawayofmakinganexactcopyofanotheranimalorplant.Firstreading

8/272.What’sthestyleofthepassage?

A.narrative(记叙文)B.argumentative(议论文)C.explanatory(说明文)9/273.Canyouputthetopicsentencesintoparagraphsthattheybelongto?(Attention:

oneofthembelongstonowhere.)

①Dolly’s

problemanddeath②Whatiscloning?③Twomajorusesofcloning

⑥TheeffectofDolly⑤Theprocedureforhumancloning④ArgumentsbroughtbyDolly

10/27Para1Para2Para3Para4Para5②Whatiscloning?③Twomajorusesofcloning

①Dolly’s

problemanddeath⑥TheeffectofDolly④ArgumentsbroughtbyDolly

⑤Theprocedureforhumancloning11/27Secondreading1.Whatarethetwomajorusesofcloning?Thefirstuseistoproducecommercialquantitiesofplants;thesecondoneistoresearchonnewplantspeciesandmedicalresearchonanimals.12/272.Iscloningplantsthesamewithcloninganimals?

A.Yes,theyarethesamewitheachother.B.No,cloningplantsisstraightforwardbutcloninganimalsismorecomplicated.

13/273.GivearightorderofcloningDolly‘sprocedure①Thecelldividesandgrowsintoanembryo.②ThelambisthecloneofthedonatedcellfromSheepB.③AnucleusistakenoutofSheepB’ssomaticcell.④TheembryoisputintofemaleSheepC.⑤TheeggcellfromSheepAandthenucleusfromSheepBarejoinedusingelectricity.⑥TheeggcellfromSheepAisremovedanucleus.Theorder:________________________①②③④⑤⑥14/271.TrueorFalsequestions.①Dollythesheepwasthefirstsuccessfulcloneofamammal.②SomecountrieslikeChinadidn’tstophumancloningresearch.③aclonedanimalusuallydiesearlierthantheoriginalone.④Evilleaderscanclonethemselvestoabtaintheirambitions.TFTFThirdreading15/272.Whatisthewriter’sattitude

towardcloninginthispassage?A.Thewriterisagainstcloning.B.Thewriterisinfavorofcloning.C.Thewriterdoesnotstateanypersonalopinionaboutcloning.16/273.What’stheaffectofcloning?Ontheonehand,itopenedeverybody’seyestothe____________ofusingcloningtocure_______________andevenproduce_____________;Ontheotherhand,Itsappearanceraisedastormof___________andhadagreatimpact

onthe_______andpublic__________.seriousillnessespossibilityhumanbeingsobjectionsmediaimagination17/274.Whataretheadvantagesanddisadvantages

ofcloning?1.Cloningplantscanproduce_______________________ofplants.2.Cloningplantscanbeusefulforresearchonnew_____species.3.Medicalcloningcouldproduce______forseriousillnesses.advantagescommercialquantitiescuresplant18/27disadvantages

1.Animalclonesmaydevelopthe________ofolderanimals.2.Animalclonesmay_____youngerthanthedonoranimals.3.Evilleadersmaywantto______themselvestoattaintheirambitions.

4.Religiousleadersraised_______questionsabouthumancloning.illnessesdieclonemoral19/27

Asonecoinhastwosides,everythinghas_____aspects(方面).Cloninghasboth______and_____aspects._______________,ifcloningisusedinacorrectway,itcanbringlotsofconveniencetous.________________,ifcloningisusedinanevilway,itcancausemuchtrouble.__________,weshouldusecloninginacorrectway.twogoodbadOntheonehandOntheotherhandTherefore5.Whatcanwelearnfromthepassage?20/27

DiscussionLet’smakeadiscussionaboutwhethercloningshouldbeallowedinChina?Giveyourreasons.21/27Possiblesentencepatterns:(1)People’sviewsvaryfrompersontoperson.(2)…holdtheviewthat…./…infavorof…(3)…objecttotheviewthat…/areagainst…(4)Ican’tagreewith…because…22/27ConsolidationThepassagemainlytellsuswhatc______is,thea_________raisedbyDollytheshe