（课件）九年级上Unit2Topic2SectionD.ppt

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1、Unit2SavingtheEarthTopic2Alltheseproblemsareveryserious.SectionDGrammarIndefinitePronounandAdverb _of us likes pollution.Dont spit _ in public._ should care for wild animals and plant more trees.We should do _ we can to protect the environment.NoneanywhereEveryoneeverythingFunctions_ a result（结果）,a

2、lot of rich land has changed _（变为）desert.Trees can stop the wind from _ the earth _(吹走）.We shouldnt leave rubbish _(到处).All these problems are very serious,_(所以)we must do something now.intoblowingawayhereandtheresoAs1aReadthepassageandputthefollowingparagraphsinthecorrectorder.()Theseaseemstohaveth

3、ebestanswer.Thereisplentyofwaterinthesea.Butweneedtotakethesaltawayfromtheseawater.Thisisveryexpensive.Ifscientistscanfindcheaperwaystodoit,wecansolvetheproblemoftheshortageofwater.()Howcanweavoidaseriouswatershortage?First,weshouldsavewaterandnotwasteit.Second,weshouldprotectourwaterresourcesandnot

4、pollutethem.Third,weshoulddiscoverwaystoreusewater.Scientistshavemadesomeprogressinthisfield.Today,somelargecitiesarereusingtheirwater.Butpeoplesneedforwaterisincreasingdaybyday.Westilldonthaveenoughwater.Whatelsecanwedo?()Althoughtheworldishungry,itiseventhirstier.Whilenearlyoftheearthiscoveredwith

5、water,wearestillshortofdrinkingwater.Thisisbecauseabout97%ofthewaterontheearthisseawater.Sowecantuseitforwateringplantsordrinkingdirectly.Humanscanonlydrinkandusefreshwaterfromplacesincludingrivers,lakesandunderground.名词名词avoid代词代词动名词动名词v.防止，避免防止，避免v.发现，找到发现，找到e.g.Heavoidedansweringmyquestions.不定式不可

6、以做宾语。不定式不可以做宾语。1.Howcanweavoidaseriouswatershortage?我们如何我们如何避免水资源短缺呢？避免水资源短缺呢？2.weshoulddiscoverwaystoreusewater.我们需要找到我们需要找到再利用水的方法。再利用水的方法。thirstyadj.缺水的缺水的;（口）渴的（口）渴的nearly adv.几乎，将近几乎，将近nearly与与almost区别区别：almost多表示时间、程度、距离、进度，多表示时间、程度、距离、进度，且且almost可以修饰可以修饰morethan,too,nothing,nobody,nowhere,noo

7、ne,none,never等词，等词，nearly则不行。则不行。nearly只与只与not连用。连用。e.g.Ihavealmostneverseenhim.Inearlydidnthearwhattheteachersaidinclass.3.Althoughtheworldishungry,itiseventhirstier虽然世界是饥饿的，但是他更渴。虽然世界是饥饿的，但是他更渴。4.Whilenearlyoftheearthiscoveredwithwater,wearestillshortofdrinkingwater.尽管地球差不多四分之三都被水覆盖，我尽管地球差不多四分之三都被

8、水覆盖，我们仍然缺少饮用水。们仍然缺少饮用水。1bRead1aagainandanswerthequestions.1.Whyisourworldthirstywhenoftheearthiscoveredwithwater?2.Whatcanwedonowtoavoidthewatershortage?Becauseabout97%ofthewaterontheearthisseawater,wecantuseitforwateringplantsordrinkingdirectly.First,weshouldsavewaterandnotwasteit.Second,weshouldpr

9、otectourwaterresourcesandnotpollutethem.Third,weshoulddiscoverwaystoreusewater.3.Whatwillbethebestwaytosolvetheprobleminthefutureinthepassage?4.Doyouknowanyotherwaystosolvetheproblem?Whatisit?Tofindcheaperwaysoftakingthesaltawayfromtheseawater.2Discussingroupsdifferentwaysofprotectingandsavingwater.

10、Writedownthekeyinformation.Example:1.Passlaws(n.法律法律)againstwaterpollution.2.Collectandreusewastewater.3.Writeaproposalaboutsavingwatertoallthestudentsinyourschool.Mydearfriends,Waterisveryimportanttohumanbeings.Letsdosomethingtoprotectandsaveit.First,_.Second,_.Third,_.Letstryourbesttosavewaterando

11、urplanet._Mydearfriends,Waterisveryimportanttohumanbeings.Letsdosomethingtoprotectandsaveit.First,weshouldprotectourwaterresourcesandnotpollutethem.Thegovernmentshouldalsopasslawsagainst the water pollution.Second,we should savewaterinourdailylife,turnoffthetapsintime,takeashower instead of a bath,a

12、nd always remember tocollectandreusewater.Third,letstrytospreadthemessage about protecting and saving water.Makemore people around us know the problem of watershortageandhowtohelpsolveit.Letstryourbesttosavewaterandourplanet.StudentUnionYou can write it like this.1.Ifwewanttousetheseawater,wemust_(拿

13、拿走）走）thesaltfromtheseawater.2.Howcanwe_(避免避免)aseriouswatershortage?3.Weshould_(找到找到)waystoreusewater.4.Peoplesneedforwaterisincreasing_(一一天天天天).5.Althoughtheworldishungry,itiseven_(更渴的更渴的)6.While_(几乎，差不多几乎，差不多)oftheearthiscoveredwithwater,wearestillshortofdrinkingwater.takeawayavoiddiscoverdaybydayt

14、hirstiernearly1.Whichwouldyouliketodrink,teaorcoffee?_,thanks.Imnotthirsty.A.EitherB.NeitherC.LittleD.Few2.Thestudentsaredoingsomecleaning.Somearesweepingthefloor,_arecleaningthedesksandchairs.A.otherB.theother C.another D.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.few