教学设计本课是第二单元话题第四课时复习课主活动

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Unit2Topic2SectionD本课是第二单元第二话题的第四，是本话题的复习课，主活动是1a和ProjectGrrFunctions让学生归纳总结本话题的语法知识——不定“wh-questions”，提高阅读效率。2是通过小组讨论的方式，探究保护水资源和和节约用水的方法，为3的写作任务作铺垫。3是学生如何写倡议书，培养学Knowledge了解淡水的现状。Skillwh-questions(如：what，why等)，理解短文的意思。Emotionalaims:Cultureawareness（optional）ThekeypointsanddifficultKeyWordsandphrases:avoid,discover,thirsty,nearly,law,shortage,resource,takesth.awayfrom…,theshortageofwater/watershortage,avoid(ng)sth.,makeprogressin,nearly3/4of…DifficultLearning通过对SectionsA-C1bwh-questions(如：what，why等)理解短文3通过制作海报，拓展学用幻灯片；单词卡片（如：shortshortagecoverdiscoveruseuserreuse等关于水资源的等。(time Student1readyforand(5GroupGreetandleadtheSstofinishGrrandFunctionsinSectionDasquicklyastheycan.Asktheleaderofeachtochecktheanswers.GreetandfinishGrr FunctionsinSectionDasquicklyastheycan.Theleadereachgroupchecks在复习话题Grr和Functions时，AB类生基本上不会有太大Cthegroupslistotherusefulexpressionsofthistopicontheexercisebookandtakenotes.ThenreporttothewholeT:o,boysandgirls!I’mgladtoseeyouagain.NowfinishGrrandFunctionsinSectionDasquicklyasyoucan.Ss:T:OK.Ifyouhavefinished,checktheanswersinyourgroup.Pleaselistasmanyimportantpointsasyoucaninthistopic.Youhave3minutestofinish.Let’sseewhichgroupdoesfasterandbetter.answers.Listotherexpressionsofthistopicontheexercisebook.Thenreporttotheclass.Ss:……生会存在或多或少的问题，教师可以先放手，让组长帮助，问题，再向老师请教。在归纳总结重难点时，让学生自己罗列在草稿本上，并在课后整理，这样既可以引导学生构建完整的知识体系，又可以培养学生的能力和归纳总结的2(3-5mins)GroupChecktheSs’:AsktheSstotakeoutthecompositionstheywroteandcheckthemingroups.Askthemtopayattentiontotheverbs,andCheckthe:Takeoutthecompositionstheywroteandcheckthemingroups,payingattentiontotheverbs,andthen由于学生水平有限，在组内交换改作文时，要注1.AA类生交换批改；BencouragethemtoreadtheircompositionstotheT:Nowtakeoutyourcompositionsandcheckyourworkwithyourgroupmembers.Pleasepayattentiontousethelinkingverbsproperly.Youhave4minutesto… finished,youcancometothefrontandreadyourowncompositiontotheclass.Haveatry,please!S1:Sincehumanslivedontheearth,wechanged Somethingisgoodwhilesomethingisbad.Theenvironmentis worseandworse.Thereusedtobelotsoftreesaroundtheworld.But trees.Peoplecutthemdown,so outtheirowncompositiontothe…… livedontheearth,wechangedtheearthalot.Somethingisgood bad.Theenvironment andworse.Thereused belotsoftreesaroundtheworld.Butnowtherearefewertrees.Peoplecutthem edeserts,and are换；CC类生交换，改正作文中一些简单2.AB类生的作文，B类C类生的作文，C类生学习A类生的作文，找出自己不A类生 3(3-5Presentsomepicturesofwaterresourcesandmakeabriefintroductionaboutthem.Teachthenewwords.T:Nowlookatthesepicturesofoceans.Therearefourlargeoceansontheearth.Howmuchwateristhere?Ss:70T:Right.Waterresourcesareveryrichontheearth.Nearly3/4oftheearthiscoveredwithwater.Isthewaterenoughforhumans?Ss:Yes./T:Whyno?WhocanlS1:Becausethereistoo Lookatthepicturesofwaterresources.Learnthenewwordsaccordingtothe该环节，教师用海洋介绍世界上丰富的水资源，引导学生了解。即使如此丰富的水资源仍然无法解决人类所面对的水资源短T:Great!Althoughthereisplentyofwater,westillfacetheproblemof4(10Step1:First-GettheSstoread1aandputtheparagraphsinthecorrectorder.T:Nowread1abyyourselvesandputtheparagraphsinthecorrectT:OK.Let’schecktheSs:3-2-Step2:Second-reading.GettheSstoreadthepassageagainandanswerthequestions1-3in1b.T:ReadPara1andanswerthefirstquestionin1b.…T:Haveyougottheanswer?Whyisourworldstillthirstywhen3/4oftheearthcoveredwithStep1:Read1aandputtheparagraphsinthecorrectorder.Ss:3-2-Readthepassageagainandanswerthequestions1-3in1b.通过正确排列短文的顺序，训练学生的逻辑思维该环节引导学生题，进一步理解文章的意思，关注水资源的现状和解决问题的方S1:Thisisbecauseabout97%ofthewaterontheearthisseawater.T:Right.PleasereadPara2tofindoutwhatwecandotoavoidthewatershortagenow?…T:OK.Whatcanwedotoavoidthewatershortagenow?S2:First,weshouldsavewaterandnotwasteit.Second,weshouldprotectourwaterresourcesandnotpollutethem.Third,weshoulddiscoverwaystoreuseT:OK.PleasefindthebestwaytosolvetheprobleminthefutureinPara3.…T:What’sthebestwaytosolvetheproblemintheS3:Thescientistscanfindmorewaystotaketheawayfromtheseawatersothatwecansolvetheproblemofwater…5(15PairGroupStep1:GuidetheSstotalkaboutQuestion4in1binpairs.T:That’sright.Butit’sdifficulttochangeseawaterintofreshwater.DoyouhaveanyotherwaystosolvewaterS1:Yes.MaybewecanpasslawsagainstwaterS2:Step2:AskSstodiscussingroupsandlistdifferentwaysofprotectingandsavingwater.Finish2.T:Nowworkingroupsandlistdifferentwaysofprotectingandusingwater.Themore,theT:OK,whatareTalkaboutQuestion4in1binpairs.S1:Yes.Maybewecanpasslawsagainstwaterpollution.…DiscussingroupsandlistdifferentwaysofprotectingandsavingS1:Wemustturnoffthetapwhenwedon’tuseit.S2:Wecanuserenewablewater.S3:Wecanuse 该环节是对解决水进行拓展，引导学生丰富文章内容，训练学生的发散Step2是对文章中解决水资源短缺的方法的具体化，教师要引导学生关注实际生活，从身边的小事着手，谈论节约用水的具体办法，为接下来的写作训练做好准S1:Wemustturnoffthetapwhenwedon’tuseit. renewablewater.S3:Wecanusethewatertocleanthefloorafter…floorafter…6Task3（10GuidetheSstowriteaproposalaboutsavingwater.Trytousethemodelin3andwhattheyhavelearnedin1a.ThenmakeareporttotheT:Writeaproposaltogiveotherssomeadviceaboutsavingwater.Themodelin3canhelpyou.Thenmakeareporttotheclass.…T:OK,whocanreadoutyourproposaltoourS1:Mydearfriends,waterisverytohumanbeings.Let’sWriteaproposalaboutsavingwaterusingthemodelin3andwhattheyhavelearnedin1a.Thenmakeareporttotheclass.S1:Mydearfriends,waterisveryimportanttohumanbeings.Let’sdosomethingtoprotectandsaveit.First,wemustturnoffthetapswhenwedon’tthem.Second,最后是培养学生的写作技能。给出了倡议书的格式和开头结尾，引导学生在写作尾，最后补充具体内容，注意细somethingtoprotectandsaveit.First,wemustturnoffthetapswhenwedon’tusethem.Second,we’dbetterusewatertocleanthefloorafterwashing.Wecanalsowatertheflowersaftercleaningrice.Third,don’tkeepthewaterrunningwhenyouarebrushi