高中英语 nit 4 Global warming 单元全套教案 新人教版选修6Word下载.docx
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Expressingagreementanddisagreement
Yes,Iagreewithyou.
Yes,Ithinkso.
Ibelievethatyou’vegotitright.
Idon’tthinkso.
Idon’tthinkthat’sright.
I’mafraidyouarewrong.
2.Abilitygoals能力目标
Enablethestudentstotalkaboutdifferentsourcesofenergyandexpresstheirownideas.
3.Learningabilitygoals学能目标
Helpthestudentslearnhowtogivetheirideasabouttheuseofenergy.
Teachingimportantpoints教学重点
Enablethestudentstoexpressagreementanddisagreement.
Teachingdifficultpoints教学难点
Enablethestudentstolearnhowtoexpressagreementanddisagreement.
Teachingmethods教学方法
Brainstorming,listeningandgroupwork.
Teachingaids教具准备
Ataperecorderandacomputer.
Teachingprocedures&
ways教学过程与方式
StepⅠRevision
T:
Goodmorning,everyone.
Ss:
Goodmorning,teacher.
Sitdown,please.Beforeclass,I’llcheckyourhomeworkfirst.Mary,wouldyoureadyourhomeworktous?
Checkthestudents’homeworkandhaveadiscussionwiththestudentsaboutthemistakesMarymade.Letthestudentshaveaclearunderstandingaboutthemistakesandthencorrectthem.
StepⅡWarmingup
Asweallknow,wedependonenergytodomanythingsinourdailylife.Somepeopleevensaywecoulddonothingwithoutenergy.Canyoutellmewhatweuseenergyfor?
Sa:
Energylightsourcities.
Sb:
Energyheatsourbuildings.
Sc:
Energyentertainsus.Withthehelpofelectricity,peoplehavegotalotoffunfromwatchingTV,playingcomputersandsoon.
Sd:
Therearemanyotherelectricalappliancesthatmakeourlifemoreconvenientandcomfortablesuchaswashingmachines,microwaves,airconditionersandsoon.
Se:
Todayenergyalsohelpspeoplerealizemanyso-calleddreamsinthepast.Forexample,peoplecan“fly”fromoneplacetoanotherbyplanewhichrunsonenergy.
Sf:
It’strue.Infact,notonlyplanesbutalsocars,shipsandtrainsrunonenergy.
Welldone.Allthatyou’vejustsaidisright.Soitseemsthatenergyplaysaveryimportantroleinthemodernworld.Thenwheredoesalltheenergycomefrom?
Openyourbooksandturntopage25.Lookatthepicturesonthispage.Theymayhelpyoufindouttheanswers.
Afterawhile.
Who’dliketotellusyouranswers?
Sg:
Windpower.
Sh:
Coalpower.
Right.Isthereanydifferencebetweenthem?
Si:
Yes.Windwillneverrunoutwhilecoalisalimitedsource.
It’strue.Asweknow,anenergysourceisrenewablewhensuppliesofitneverrunoutwhilesomesupplies,suchascoal,willdefinitelyrunoutoneday.Energyofthiskindiscallednon-renewablesources.Pleasethinkofasmanysourcesasyoucananddecidewhichenergysourcesonyourlistarerenewableandwhicharenon-renewable.
Ifnecessary,givesomewordsrelatedtothepictureswhichmightbedifficultforthestudentssuchasoilrefinery,hydroelectricpowerandsoon.
Theteachershouldalsocollectasmuchinformationaboutdifferentsourcesofenergyaspossibleandshowittothestudentsinclassthroughacomputer.Inthisway,thestudentswillbecomemoreinterestedinthistopicandtheirknowledgeonthisaspectwillbeenlarged.
Sampleanswers:
Renewable
Non-renewable
Windpower
Coal
Solarpower
Naturalgasandoil
Hydroelectricpower
Nuclearpower
StepⅢListeningandDiscussing
Fromwhatwe’vejusttalkedabout,itisclearthatenergydoesalotofgoodtous.Buteverycoinhastwosides.Isthereanynegativeeffectofusingenergy?
Yes.Peopleusetoomuchenergywhichisresultinginanincreaseincarbondioxide.Thatishowtheglobalwarmingcomesabout.
Andmeanwhileitpollutestheenvironment.
It’strue.Manypeoplehaverealizedtheproblem.Nextwe’lldosomelisteningpracticeonthistopic.Let’sseewhatotherpeoplethinkofthisissue.
Thestudentsareaskedtoreadthequestionsquicklytofindoutthelisteningpointsfirst.Thenlistentothetapetwiceandgivethecorrectanswers.
Nowpleaseturntopage31.Let’sdolistening.Beforeyoulistentothetape,pleasereadfastthestatementsinExercise1tofindoutthelisteningpoints.Paymuchattentiontothekeypointswhilelistening.
Playthetapeforthefirsttime.Helpthestudentsgetageneralunderstandingaboutthedialogue.ThestudentslistenandtrytofinishExercise1.Playthetapeagain,trainthestudents’abilitytospotspecificinformationandunderstandtheimplicationinthedialogue.ThestudentslistenandfinishExercise2.
Severalminuteslater.
T:
Haveyoufinishedtheexercises?
Yes.
OK,let’scheckyouranswers.
Explainsomedifficultpointsifnecessary.
NowreadwhatProfessorChenandLiBinsay.