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新外研社19高中英语必修二Unit6Earthfirst-Presentingideas教案Teachingobjectives:Enablestudentstoreviewthewordsrelatedtodealingwithenvironmentalproblems.Guidestudentstopresentyourideasaboutwhatyoucandotodealwithanenvironmentalproblem.Leadstudentstoknowhowtowriteapersuasiveletter.Helpstudentstoraisetheawarenessthatitiseveryonesdutytoprotecttheenvironment.Evaluationobjectives:Askstudentstopresenttheirideasabouttheenvironmentalissuesandsolutionstocheckwhethertheycanexpresstheirideasproperlyandwhethertheycanfeeltheimportanceofprotectingtheenvironment.Askstudentstowriteapersuasivelettertocheckwhethertheymasterhowtowriteone.Teachingkeyanddifficultpoints:Learnhowtowriteapersuasiveletter.Writeapersuasiveletter.Teachingmethods:CooperativeTeachingMethodTask-basedApproachCommunicativeApproachTeachingprocedures:Stepl:ReviewsomeexpressionsrelatedtoenvironmentalproblemsTranslatethefollowingsentences:.其他人开始肆无忌惮地捕杀鲨鱼.1975年后,美国大型鲨鱼的数量迅速下降这一趋势很快蔓延到全球.今天,随着我们越多地了解鲨鱼,更多的人比以往想要保护它们以防灭绝.近年来我们看到大片的湿地被人类活动所破坏.种树能大大地减少温室效应.通过运用可重复利用的产品减少浪费.努力减少碳的足迹且使用可再生的能源.你用的能量越少,二氧化碳释放的就越少.政府正在采取措施尽可能多地减少雾霾.工厂必须遵守它们用什么化学药品的规则.在一些城市,人们开车进入中心需要交费Suggestedanswers:.Otherpeoplestartedfishingforsharkskillingasmanyastheycould..After1975thenumberoflargesharksaroundAmericafellquicklyandsoonfellaroundtheworld..Todayzaswelearnmoreaboutsharksmorepeoplethaneverwanttoprotectthemfromextinction..Inrecentyearswehaveseenlargeareasofwetlandthatweredamagedbyhumanactivity..Plantingtreescanhelpalotinreducingthegreenhouseeffect..Reducewastebychoosingreusableproducts..Trytoreduceyourcarbonfootprintanduserenewableenergy..Thelessenergyyouusethelesscarbondioxideisreleased..Thegovernmentistakingmeasurestoreducesmogasmuchaspossible..Factoriesmustfollowrulesaboutwhatchemicalstheyuse..Insomecitiespeoplehavetopaytodriveinthecentre.Step2:PresentyourideasPrepareatalkaccordingtothefollowingcommandsandguidance.HWhatstheenvironmentalproblemyouwillmention回Whatcausesit回HowtosolveitUsefulexpressions:团leadto/bringout/contributeto回beconcernedabout回wouldliketosuggest0Wehopethat...回Oneofthereasonsisthat...团Inordertoimprovethesituationweshould...[Ereplace...with...回asfarasIamconcerned回reusablebagsSonfoot/bybike团limitedresourcesHofferanalternativeto...Izlmakejointeffort回raisepeoplesawarenessof回appealtosb.todosth.T:NowifIaskyoutocallonthepublictodoasyouadvisepeopletodohowwillyouorganizeyourlanguage.Thatistosayyoushouldknowhowtowriteapersuasiveletter.Nowletslookatanexample.Step3:WriteapersuasiveletterTaskl:ReadthepassageonPage71andanswerthefollowingquestions..Whatisthepurposeoftheletter.Whatistheexistingproblem.WhataretheproposedactionsfromClass8Suggestedanswers:l.TocalloneveryonetotakepartintheClearYourPlatecampaign.
2.Over30%oftheworldsfoodiswastedwhilemanypeopleinpoorareasdonothaveenoughtoeat.
3.Donotordermorethanyouneedintheschoolcanteen;orderlessandtakeleftoverfoodhomewhendininginrestaurants;callonfamilymembersandfriendstotakepartinthecampaign.Task2:Workingroups.Discussanotherenvironmentalissueabouthowtowriteapersuasiveletterandmakenotes.回Problem:回Causes:回Solution⑸Task3:ThinkaboutanotherenvironmentalissueandaskstudentstojoininthecampaignrelatedtotheissueforexampletheNoBottledWatercampaignandwriteapersuasiveletterwiththehelpoftheseexpressions100-120words.Thelettershouldincludethefollowingaspects:回Problem:团Causes:回Solutions:Usefulexpressions:Wearewritingthislettertoraiseyourawarenessof...Weareconcernedthat...Wewouldliketosuggest...Wehopethatyouwillconsider...Oneofthereasonsforthisis...Inordertoimprovethesituationweshould...Suggestedanswers:DearFriendsWearewritingthislettertoraiseyourawarenessoftheneedtoprotectourplanet.YoucanhelpsimplybyparticipatingintheNoBottledWatercampaign.Peopletendtothinkbottledwateriscleanerandmoreconvenient.Howevertheymaynotknowthataccordingtoscientificresearchmillionsoftonsofplasticareusedworldwidetomakewaterbottleseachyear.Theplasticcantakehundredsofyearstobreakdown.IfyouareworriedabouttheeffectsofbottledwaterontheEarthwewouldliketosuggestyoutakethefollowingsteps:
1.Carryyourwaterinasustainablereusablebottle.Inthiswayyoudontneedtobuybottledwater.
2.Ifyouhavetopurchaseaplasticbottledbeveragerecyclethebottleafteruse.
3.Askyourfamilymembersandfriendstotakepartinthiscampaign.Everyoneisresponsibleformakingourplanetcleanerandbetterbydoingwhatwecan.Let/sstartnow.WithbestwishesClass29Homework:Polishthesummaryandcheckthegrammarandspellingmistakesingroups.Transformyourspeechintoashortpassagewithin100words教学反思.通过本节课的学习,学生能够理解并掌握有关环境问题以及解决方案的词汇.通过本节课的学习,学生能够恰当应用表示原因与措施的表达.通过本节课的学习,学生能够加深对单元主题的理解,提高语言应用的能力,实现知识与思维能力的迁移。