九年级上Unit2Topic2SectionD课件PPT 23页

'Unit2SavingtheEarthTopic2Alltheseproblemsareveryserious.SectionD綦江区天池学校黄梅 GrammarIndefinitePronounandAdverb_______ofuslikespollution.Don’tspit___________inpublic._________shouldcareforwildanimalsandplantmoretrees.Weshoulddo___________wecantoprotecttheenvironment.NoneanywhereEveryoneeverything Indefinitepronounandadverb不定代词和副词一、构成。不定代词、副词是由some,any,no,every与thing,one,body,where等构成。E.g.something,someone,nowhere,anybody等。二、用法。1．通常情况下,由some,every加后缀构成的不定代词、副词常用于肯定句；由any加后缀构成的不定代词、副词常用于疑问句、否定句中。E.g.Youwillfindyourbagsomewhere.Canyouhearanything?2.注意：当说话人希望得到肯定答复,或是表示建议、请求等意图时,something,somebody,someone也可以用于疑问句中。当要表达“任何人；任何事物”时,anything,anybody,anyone也可以用于肯定句中。E.g.Wouldyoulikesomethingtodrink?AnybodycandoitexceptTom. 1.—Whichwouldyouliketodrink,teaorcoffee?—________,thanks.I’mnotthirsty.A.EitherB.NeitherC.LittleD.Few2.Thestudentsaredoingsomecleaning.Somearesweepingthefloor,________arecleaningthedesksandchairs.A.otherB.theotherC.anotherD.others3.Myparentsare________doctors.A.bothB.allC.eitherD.neither4.Thereis________withmycomputer.Canyouhelpme?A.wronganythingB.anythingwrongC.wrongsomethingD.somethingwrong5.Thewindwasblowingstrongly.________peoplewalkedinthestreet.A.LittleB.AlittleC.FewD.Afew6.Hurryup.Thereis________timeleft.A.alittleB.littleC.afewD.fewExercises Functions______aresult（结果）,alotofrichlandhaschanged_________（变为）desert.Treescanstopthewindfrom______theearth_____(吹走）.Weshouldn’tleaverubbish___________(到处).Alltheseproblemsareveryserious,_____(所以)wemustdosomethingnow.intoblowingawayhereandtheresoAs waterpollution Imagineyouarewater.Pleasetellusyourfunctions,problemsandwishes.I’mwater.Iusedtobe…Factoriesusuallypour…Iwishhumanbeings… Teachingaimsanddemands(教学目标）KnowledgeandAbilityaims(知识与能力目标）Themethodandprocessgoals(方法与过程目标）Emotionandattitudegoals(情感与态度目标） Welearn:1.somewords:avoid,discover,thirsty,nearly,law2.somephrases:daybyday,beshortof3.somesentences:(1)Butpeople’sneedforwaterisincreasingdaybyday.(2)Whilenearly¾oftheearthiscoveredwithwater,wearestillshortofdrinkingwater.Wecan:1.Talkaboutwaysofsavingwater.2.Summarizeandusetheindefinitepronounandadverbcorrectly.3.Writeaproposal.知识与能力目标 1、通过多媒体课件的辅助教学，更加有效地完成教学目标；2、学生个人独立完成听力任务；3、小组合作讨论完成疑难问题及合作任务；4、优生突出表演，展示合作成果；5、师生一起找到任务答案。方法与过程目标 1、让学生明白保护环境的重要性和必要性；2、让学生明白爱护和保护环境是我们的责任和义务；3、让学生懂得：真爱生命，保护地球；情感与态度目标 1aReadthepassageandputthefollowingparagraphsinthecorrectorder.()Theseaseemstohavethebestanswer.Thereisplentyofwaterinthesea.Butweneedtotakethesaltawayfromtheseawater.Thisisveryexpensive.Ifscientistscanfindcheaperwaystodoit,wecansolvetheproblemoftheshortageofwater.()Howcanweavoidaseriouswatershortage?First,weshouldsavewaterandnotwasteit.Second,weshouldprotectourwaterresourcesandnotpollutethem.Third,weshoulddiscoverwaystoreusewater.Scientistshavemadesomeprogressinthisfield.Today,somelargecitiesarereusingtheirwater.Butpeople’sneedforwaterisincreasingdaybyday.Westilldon’thaveenoughwater.Whatelsecanwedo?()Althoughtheworldishungry,itiseventhirstier.Whilenearly¾oftheearthiscoveredwithwater,wearestillshortofdrinkingwater.Thisisbecauseabout97%ofthewaterontheearthisseawater.Sowecan’tuseitforwateringplantsordrinkingdirectly.Humanscanonlydrinkandusefreshwaterfromplacesincludingrivers,lakesandunderground. 名词avoid代词动名词v.防止，避免v.发现，找到Languagepointse.g.Heavoidedansweringmyquestions.不定式不可以做宾语。1.Howcanweavoidaseriouswatershortage?我们如何避免水资源短缺呢？2….weshoulddiscoverwaystoreusewater.我们需要找到再利用水的方法。 thirstyadj.缺水的;（口）渴的nearlyadv.几乎，将近nearly与almost区别：almost多表示时间、程度、距离、进度，且almost可以修饰morethan,too,nothing,nobody,nowhere,noone,none,never等词，nearly则不行。nearly只与not连用。e.g.Ihavealmostneverseenhim.Inearlydidn’thearwhattheteachersaidinclass.Languagepoints3.Althoughtheworldishungry,itiseventhirstier虽然世界是饥饿的，但是他更渴。4.Whilenearly¾oftheearthiscoveredwithwater,wearestillshortofdrinkingwater.尽管地球差不多四分之三都被水覆盖，我们仍然缺少饮用水。 1bRead1aagainandanswerthequestions.1.Whyisourworldthirstywhen¾oftheearthiscoveredwithwater?2.Whatcanwedonowtoavoidthewatershortage?Becauseabout97%ofthewaterontheearthisseawater,wecan’tuseitforwateringplantsordrinkingdirectly.First,weshouldsavewaterandnotwasteit.Second,weshouldprotectourwaterresourcesandnotpollutethem.Third,weshoulddiscoverwaystoreusewater.3.Whatwillbethebestwaytosolvetheprobleminthefutureinthepassage?4.Doyouknowanyotherwaystosolvetheproblem?Whatisit?Tofindcheaperwaysoftakingthesaltawayfromtheseawater. 2Discussingroupsdifferentwaysofprotectingandsavingwater.Writedownthekeyinformation.Example:Passlaws(n.法律)againstwaterpollution.Collectandreusewastewater.…… 3.Writeaproposalaboutsavingwatertoallthestudentsinyourschool.Mydearfriends,Waterisveryimportanttohumanbeings.Let’sdosomethingtoprotectandsaveit.First,________.Second,_________.Third,_________.Let’stryourbesttosavewaterandourplanet._____________ Mydearfriends,Waterisveryimportanttohumanbeings.Let’sdosomethingtoprotectandsaveit.First,weshouldprotectourwaterresourcesandnotpollutethem.Thegovernmentshouldalsopasslawsagainstthewaterpollution.Second,weshouldsavewaterinourdailylife,turnoffthetapsintime,takeashowerinsteadofabath,andalwaysremembertocollectandreusewater.Third,let’strytospreadthemessageaboutprotectingandsavingwater.Makemorepeoplearoundusknowtheproblemofwatershortageandhowtohelpsolveit.Let’stryourbesttosavewaterandourplanet.StudentUnionYoucanwriteitlikethis. ProjectMakingPostersAboutNaturalResourcesDividetheclassintoseveralgroups:WaterGroup,TreeGroup,SoilGroup…Eachgroupshoulddiscusstheirownuses,theproblemsthattheyfaceandtheirwishes.Thengiveareportinclass.Example:Uses:Iamsoil.Plantscan’tgrowwithoutme.Peopleusemetomakemanythings…Problems:Sometimespeopleusetoomanychemicalsinthefields.What’sworse,theyputwasteintotheland…SoI’mhurt.Pleasehelpme.Wishes:Ihopehumanbeingscanprotectandtakecareofme.AndthenIcoulddomoreusefulthingsforthem…3.Makesomeposterswiththeresult. ExercisesIfwewanttousetheseawater,wemust_________(拿走）thesaltfromtheseawater.Howcanwe_________(避免)aseriouswatershortage?Weshould__________(找到)waystoreusewater.People’sneedforwaterisincreasing____________(一天天).Althoughtheworldishungry,itiseven______(更渴的)While___________(几乎，差不多)¾oftheearthiscoveredwithwater,wearestillshortofdrinkingwater.takeawayavoiddiscoverdaybydaythirstiernearly Welearn:1.somewords:avoid,discover,thirsty,nearly,law2.somephrases:daybyday,beshortof3.somesentences:(1)Butpeople’sneedforwaterisincreasingdaybyday.(2)Whilenearly¾oftheearthiscoveredwithwater,wearestillshortofdrinkingwater.Wecan:1.Talkaboutwaysofsavingwater.2.Summarizeandusetheindefinitepronounandadverbcorrectly.3.Writeaproposal.Summary AssignmentRead1a.Reviewtheusefulexpressionsandkeysentenceswhichwelearninthistopic.PreviewSectionAinTopic3. Thankyou!'