高中英语 nit 4 Global warming 单元全套教案 新人教版选修6.docx

高中英语 nit 4 Global warming 单元全套教案 新人教版选修6.docx

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高中英语nit4Globalwarming单元全套教案新人教版选修6

Unit4Globalwarming

PeriodSpeakingandListening

Teachinggoals教学目标

1.Targetlanguage目标语言

a.重点词汇和短语

energy,light（v.）,heat（v.）,renewable,non-renewable,fuel,blame,runout

b.交际用语

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.

T:

Sitdown,please.Beforeclass,I’llcheckyourhomeworkfirst.Mary,wouldyoureadyourhomeworktous?

Checkthestudents’homeworkandhaveadiscussionwiththestudentsaboutthemistakesMarymade.Letthestudentshaveaclearunderstandingaboutthemistakesandthencorrectthem.

StepⅡWarmingup

T:

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.

T:

Welldone.Allthatyou’vejustsaidisright.Soitseemsthatenergyplaysaveryimportantroleinthemodernworld.Thenwheredoesalltheenergycomefrom?

Openyourbooksandturntopage25.Lookatthepicturesonthispage.Theymayhelpyoufindouttheanswers.

Afterawhile.

T:

Who’dliketotellusyouranswers?

Sg:

Windpower.

Sh:

Coalpower.

T:

Right.Isthereanydifferencebetweenthem?

Si:

Yes.Windwillneverrunoutwhilecoalisalimitedsource.

T:

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

T:

Fromwhatwe’vejusttalkedabout,itisclearthatenergydoesalotofgoodtous.Buteverycoinhastwosides.Isthereanynegativeeffectofusingenergy?

Sa:

Yes.Peopleusetoomuchenergywhichisresultinginanincreaseincarbondioxide.Thatishowtheglobalwarmingcomesabout.

Sb:

Andmeanwhileitpollutestheenvironment.

T:

It’strue.Manypeoplehaverealizedtheproblem.Nextwe’lldosomelisteningpracticeonthistopic.Let’sseewhatotherpeoplethinkofthisissue.

Thestudentsareaskedtoreadthequestionsquicklytofindoutthelisteningpointsfirst.Thenlistentothetapetwiceandgivethecorrectanswers.

T:

Nowpleaseturntopage31.Let’sdolistening.Beforeyoulistentothetape,pleasereadfastthestatementsinExercise1tofindoutthelisteningpoints.Paymuchattentiontothekeypointswhilelistening.

Playthetapeforthefirsttime.Helpthestudentsgetageneralunderstandingaboutthedialogue.ThestudentslistenandtrytofinishExercise1.Playthetapeagain,trainthestudents’abilitytospotspecificinformationandunderstandtheimplicationinthedialogue.ThestudentslistenandfinishExercise2.

Severalminuteslater.

T：

Haveyoufinishedtheexercises?

Ss:

Yes.

T:

OK,let’scheckyouranswers.

Explainsomedifficultpointsifnecessary.

T:

NowreadwhatProfessorChenandLiBinsay.