安徽省滁州市第二中学高中英语Unit22EnvironmentalProtectionTheSecondPeriodLesson1GlobalWarming教案北师大版选修8Teachinggoals教学目标1.TargetLanguage目标语言a.重点词汇和短语consensus,beyond,relevant,refer,bounce,pin,coincidence,condemn,federal,reservation,sacrifice,advocate,recycle,substitute,beyondone’scontrol,takeaction,aheadofb.重点句子Inthelastfewdecades,scientistshavereachedconsensusandreportedthathumanbeingsarecausingchangesintheEarth’sclimate—somethingpreviouslyseenasbeyondourcontrol.2.Abilitygoals能力目标Learnwhatglobalwarmingisandenablestudentstolearnitscausesandconsequences.3.Learningabilitygoals学能目标Byreadinganarticlehelpstudentstolearnhowtheycanhelpsolvetheproblemofglobalwarming.Teachingimportantpoints教学重点Whathumanactivitiesarecausingglobalwarmingandhowwecanhelpsolvetheproblemofglobalwarming.Teachingdifficultpoints教学难点Howwecanhelpsolvetheproblemofglobalwarming.Teachingmethods教学方法Listening,reading,discussing.Teachingaid教具准备Multimediacomputer.Teachingprocedures&ways过程与方式StepILeadinginInthisprocedurestudentswilltalkaboutthecausesandconsequencesofglobalwarming.BeginthelessonbyaskingstudentstodiscussthequestionsinbeforeyoustartT:YesterdaywelearnedfromthepassageinCultureCornerthatgasesfromburningcoalandoilarethemajorcausesofglobalwarming.Didyoumakeyoursurveyonhowstudentscometoschool?S1:Iasked40students.Teninthefortycometoschoolbybus.Twenty-oneridebicycles.Eightofthefortytakeacarandonlyonewalkstoschool....T:Fromthesurveyyoumadewecanseemostofstudentsinourschooltakeagreenwaytoschool.I’mgladwearenothavingsomanycars.Becausegasespumpedintotheatmospherefromcarswillspeedupglobalwarming.Haveyounoticedthatin2006wehadaverywarmwinter?ExpertssayglobalwarminghaschangedtheclimateinChina.Inthisclasswearegoingtolearnmoreaboutglobalwarming.Wewillreadanarticle“Canwetaketheheat?”Beforewestartthetext,pleasediscussthequestioninBeforeyoustart.StepIIBeforeyoustartDiscussthetwoquestionsinBeforeyoustartandworkoutthemeaningsofthegivenwords.T:OK,openyourbooksanddiscussthequestioninBeforeyoustartonPage6.Whichcountriesdoyouthinkcontributemoretoglobalwarming,developedcountriesordevelopingcountries?Ss:Developedcountries.Becausetheyhavemorecarsandfactoriesandgasesfromcarsandfactoriesarethemajorcauseofglobalwarming.T:Goodanswer.PleasescanthetextforthegivenwordsinEx2andtrytoworkouttheirmeaning.Whilestudentsarediscussingthewords,Teachershouldwalkaroundtheclassroomandgivenecessaryhelpwhenneeded.Severalminuteslater,askstudentstopresenttheiranswerseitherinEnglishorChinese.Studentsmayevenbeencouragedtoexplainthemeaningsusingpictures.ShowthesuggestedanswersonthePowerPoint.StepIIIReadtolearnDealwiththereadingpart.ScanningAskstudentstoscanthetextandfindwhatexactlyglobalwarmingis.T:WhatisthetitleofLesson1?Ss:GlobalWarming.T:Doyouknowwhatexactlyglobalwarmingis?Pleasescanthetextandfindtheanswerinthetext.Ss:GlobalwarmingreferstoanaverageincreaseintheEarth’stemperature.T:Quitegood!Thenskimthetextandfindwhathumanactivitiesarecausingglobalwarming.S:Asaresultofincreasedindustry,agriculture,thecuttingdownofforests,theincreaseintransportandtheburningoffuels,nearly6tonesofcarbondioxidegoesintotheatmosphereeveryyearforeveryoneoftheEarth’s6billionpeople.Overthelast100years,theglobalaveragetemperaturehasincreasedby1°F.Ifwecontinuetoproducecarbondioxideandothergasesinsuchquantities,wearecond...
