高中英语-Book8 Unit2 Cloning教学课件设计

Unit2Cloning——warmingup&reading

Whatwillyouthinkof?

twinsthesamegenecloningDolly

…movieBrainstorming

Theyhavethesameface.Peoplearenolongerspecialtoeachother.1.2.3.4._________isonethatoccursinnature.

_____________isonethatisproducedwithhumanhelp.AnaturalcloneAman-madecloneDollywasthemostfamousclonedsheep.

Whatdoyouthinkthearticleisaboutbyreadingthisheadline?PredictionCloning:Whereisitleadingus?

Skimthetexttogettheanswerstothefollowingquestions.

1.What’sthewritingstyle?2.themainideaofthetext3.clearthestructureofthetext

SkimmingCloning:Whereisitleadingus?1.What’sthewritingstyle?

Expositive(说明性的)2.Whatisthemainideaofthetext?

Animalcloningraised_________andscientistsarenotsureaboutits_______.argumentsfuture.3.Finishthemindmaptoclear

thestructureofthetextProblemofDollyTheimpactofcloningIntroductionThereactiontocloningUseandbreakthroughTask1:

Readpara1&2andanswerthefollowingquestions

1.Whatiscloning?2.Whatarethedifferencesbetweenplantcloningandanimalcloning?Usesomewordstodescribetheanimalcloning.

3.Whyarethescientistssocrazyaboutcloning?Havethescientistssucceededincloning?Intensivereading

1.Whatiscloning?Cloningisawayofmakinganexactcopyofanotheranimalandplant.TheyhavethesameDNA.

＊Cloningplantsisstraightforward

whilecloninganimalsisverycomplicated.

＊

Itisadifficulttasktoundertake.

＊

Manyattemptstoclonemammalsfailed.2.Whatarethedifferencesbetweenplantcloningandanimalcloning?Usesomewordstodescribetheanimalcloning.difficultcomplicated\complexneedadvancedscienceandtechnology3.Whyaretheysocrazyaboutcloning?Havethescientistssucceededincloning?

Butatlastthedeterminationandpatienceofthescientistspaidoffwithabreakthrough.Becausecloninghastwomajoruses.

Firstly,…commercial…

Secondly,…research…TheprocedureworksofDollythesheep

Task2:Asomaticcell:~istakenfromamammalAnucleus:~isthecentralpartofcells,containingthegeneticmaterialAnembryo:ayoungorplantintheverystagebeforebirthTheprocedureworksofDollythesheep

代孕母羊HowtoproduceasheepTask3:

Readpara3-5andanswersomequestions2.Whyiscloningcontroversialinsomecountries?3.Whatisthewriter’sattitudetowardscloning?1.Whataretheproblemsordangersofcloning?1.Whataretheproblemsordangersofcloning?

Animalclonesmay

developtheillness

ofolderanimals

Animalclonesmay

dieyounger

thantheoriginalanimals.

Evilleaders

maywanttoclonethemselves.

Thereare

moralobjections

tocloninghumanbeings.

2.

whyiscloningcontroversialinsomecountries?

Ontheonehand,itopenedeverybody’seyestothepossibilityofusingcloningtocureseriousillnessesandevenproducehumanbeings;Ontheotherhand,Itsappearanceraisedastormofobjectionsandhadagreatimpactonthemediaandpublicimagination.Becausetheauthordoesnotstateanypersonalopinionaboutcloning.Itgivesdifferentpointsofviewanddoesnottrytopersuadethereadertomakeuphis/herownmind.

A.Objective(befair)B.Negative(beagainstit)C.Positive(beinfavorofit)3.Thewriter’sattitudetowardscloning?Tips:

cloningornot?befor

beagainstGroupAGroupBMini-DebateBefor,infavorof,agreewith,approveofBegood/useful/beneficial,benefit,ofgreatbenefit

Cureillnesses,plantsforsale,researchon,bringendangeredanimalsbacktolife,medicalscience,transportorgans,somebooksandmoviestoenjoy…...Beagainst,objectto,Bebad/harmfulsufferillnessesofolderanimals,dieyounger,evilleaders,moralproblems,varietyintheplantandanimalspecies…….Thefollowingexpressionsmaybeuseful:Whichgroupisthewinner?

Asonecoinhastwosides,everythinghastwoaspects.Cloninghasbothadvantagesanddisadvantages.Ontheonehand,ifcloningisusedinacorrectway,itcanbringlotsofconveniencetous.Ontheotherhand,ifcloningisusedinanevilway,itcancausemuchtrouble.Therefore,weshouldusecloninginacorrectway.Whatcanwelearnfromthepassage?Quiz:

Seewhatyougotfromourclasstoday!（yesorno)1.Doyouknowwhatcloneis?2.DoyouknowhowDollythesheepwasproduced?3.Doyou