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1、 Unit 2 Saving the EarthTopic 2 All these problems are very serious.Section DGrammarIndefinitePronounandAdverb _of us likes pollution. _of us likes pollution. Dont spit _ in public. Dont spit _ in public. _ should care for wild animals and plant _ should care for wild animals and plant more trees. m
2、ore trees. We should do _ we can to protect the We should do _ we can to protect the environment. environment. NoneanywhereEveryoneeverythingIndefinitepronounandadverb不定代词和副词不定代词和副词一、构成。一、构成。不定代词、副词是由不定代词、副词是由some,any,no,every与与thing,one,body,where等构成。等构成。E.g.something,someone,nowhere,anybody等。等。二、用
3、法。二、用法。1通常情况下通常情况下,由由some,every加后缀构成的不定代词、加后缀构成的不定代词、副词常用于肯定句；由副词常用于肯定句；由any加后缀构成的不定代词、副加后缀构成的不定代词、副词常用于疑问句、否定句中。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。当要表达也可以用于疑问句中。当要表达“任何人；任何事物
4、任何人；任何事物”时时,anything,anybody,anyone也可以用于肯定也可以用于肯定句中。句中。E.g.Wouldyoulikesomethingtodrink?AnybodycandoitexceptTom.1.Whichwouldyouliketodrink,teaorcoffee?_,thanks.Imnotthirsty.A.EitherB.NeitherC.LittleD.Few2.Thestudentsaredoingsomecleaning.Somearesweepingthefloor,_arecleaningthedesksandchairs.A.otherB.
5、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.lit
6、tleC.afewD.fewFunctions_aresult（结果）（结果）,alotofrichlandhaschanged_（变为）（变为）desert.Treescanstopthewindfrom_theearth_(吹走）吹走）.Weshouldntleaverubbish_(到到处处).Alltheseproblemsareveryserious,_(所以所以)wemustdosomethingnow.intoblowingawayhereandtheresoAswaterpollution Imagine you are water.Please tell us your fu
7、nctions, problems and wishes.Imwater.IusedtobeFactoriesusuallypourIwishhumanbeings预习导纲预习导纲一一.读读1a内容，在文中找出下列短语并画出来然后朗读。内容，在文中找出下列短语并画出来然后朗读。1.似乎有最佳答案似乎有最佳答案_2.从海水中提取出盐从海水中提取出盐_3.解决水短缺问题解决水短缺问题_4.保护水资源保护水资源_5.在这领域取得些进步在这领域取得些进步_6.一天一天地一天一天地_7.将近将近3/4的地球的地球_8.由由-覆盖覆盖_9.缺少饮水缺少饮水_10.使用淡水使用淡水_二二.读下列句子并探究。
8、读下列句子并探究。1.1.Howcanweavoidaseriouswatershortage?译：译：_探究：探究：avoid_词，意为词，意为_.其后可接名词或代词作其后可接名词或代词作_语，也语，也可接可接_作宾语，但是不能接不定式作宾语。作宾语，但是不能接不定式作宾语。练一练：练一练：To_answeringmyquestions,sheleftthehall.A.offerB.escapeC.avoidD.refer想一想：除想一想：除avoid仅用动名词作宾语外，还有：仅用动名词作宾语外，还有：_（完成），完成），_（喜欢），（喜欢），_（练习），（练习），_(保持），保持），_（
9、介意）等词。（介意）等词。2.Ifscientistscanfindcheaperwaystodoit,译：译：_Third,weshoulddiscoverwaystoreusewater.译：译：_探究：探究：find意为意为_,着重指找到的结果。着重指找到的结果。discover意为意为_,表示表示“偶然偶然”发现客观存在的事物、发现客观存在的事物、真理或错误。真理或错误。findout意为意为_,常指经过研究了解或询问，找出事实常指经过研究了解或询问，找出事实真真相或原相或原理、方法。理、方法。练一练：练一练：Canyou_whattimethetrainleaves?A.findB.
10、findoutC.inventD.discoverNewton_thelawofgravitation（万有引力定律）（万有引力定律）A.foundB.foundoutC.inventedD.discovered3.Whilenearlyoftheearthiscoveredwithwater,wearestillshortofdrinkingwater.译：译：_。探究：探究：nearly_词，意为词，意为_.常可与常可与almost换用，但在换用，但在具体数字具体数字前常用前常用nearly.not修饰修饰nearly意为意为“远非远非”，“远不及远不及”。almost可以修饰可以修饰mo
11、rethan,too,nothing,nobody,nowhere,noone,none,never等词，等词，nearly则不行则不行.如：如：Healmostknockedmedownbeforehesawme.Almostnoone(=Hardlyanyone)believesher.几乎没有几乎没有人相信她人相信她练一练：练一练：Myeyesightwas_destroyedinthataccident.ThankstoDrBeker,Ienjoythebeautifulworldagain.A.completelyB.hardlyC.quicklyD.nearly单项选择单项选择1.
12、Weneedto_thesaltawayfromtheseawater.Butitscostis_.A.get,expensiveB.keep,cheapC.take,highD.get,low2.Althoughtheworldishungry,itis_thirstier.A.muchB.evenC.veryD.so3.Scientistshave_inreusingwatertheseyears.A.madesomeprogressB.succeededC.workedwellD.doneworst4.Becauseofwaterpollution,weare_drinkingwater
13、inourdailylives.A.shortofB.shortforC.pleasedwithD.angryat1aReadthepassageandputthefollowingparagraphsinthecorrectorder. ()Theseaseemstohavethebestanswer.Thereisplentyofwaterinthesea.Butweneedtotakethesaltawayfromtheseawater.Thisisveryexpensive.Ifscientistscanfindcheaperwaystodoit,wecansolvetheproble
14、moftheshortageofwater.()Howcanweavoidaseriouswatershortage?First,weshouldsavewaterandnotwasteit.Second,weshouldprotectourwaterresourcesandnotpollutethem.Third,weshoulddiscoverwaystoreusewater.Scientistshavemadesomeprogressinthisfield.Today,somelargecitiesarereusingtheirwater.Butpeoplesneedforwateris
15、increasingdaybyday.Westilldonthaveenoughwater.Whatelsecanwedo?()Althoughtheworldishungry,itiseventhirstier.Whilenearlyoftheearthiscoveredwithwater,wearestillshortofdrinkingwater.Thisisbecauseabout97%ofthewaterontheearthisseawater.Sowecantuseitforwateringplantsordrinkingdirectly.Humanscanonlydrinkand
16、usefreshwaterfromplacesincludingrivers,lakesandunderground.1b Read 1a again and answer the questions.1b Read 1a again and answer the questions. 1.Whyisourworldthirstywhenoftheearth1.Whyisourworldthirstywhenoftheearthiscoveredwithwater?iscoveredwithwater?2.Whatcanwedonowtoavoidthewatershortage?2.What
17、canwedonowtoavoidthewatershortage?Becauseabout97%ofthewaterontheearthisseawater,wecantuseitforwateringplantsordrinkingdirectly. First,weshouldsavewaterandnotwasteit.Second,weshouldprotectourwaterresourcesandnotpollutethem.Third,weshoulddiscoverwaystoreusewater.3.Whatwillbethebestwaytosolvetheproblem
18、inthefutureinthepassage?4.Doyouknowanyotherwaystosolvetheproblem?Whatisit?Tofindcheaperwaysoftakingthesaltawayfromtheseawater.2 Discuss in groups different ways of 2 Discuss in groups different ways of protecting and saving water. Write down protecting and saving water. Write down the key informatio
19、nthe key information. .Example:1.Passlaws(n.法律法律)againstwaterpollution.2.Collectandreusewastewater.3.3. Write a proposal about saving water to all the students in your school. Mydearfriends,Mydearfriends,Waterisveryimportanttohumanbeings.LetsWaterisveryimportanttohumanbeings.Letsdosomethingtoprotect
20、andsaveit.dosomethingtoprotectandsaveit.First,_.First,_.Second,_.Second,_.Third,_.Third,_.Letstryourbesttosavewaterandourplanet.Letstryourbesttosavewaterandourplanet._Mydearfriends,Waterisveryimportanttohumanbeings.Letsdosomethingtoprotectandsaveit.First,weshouldprotectourwaterresourcesandnotpollute
21、them.Thegovernmentshouldalsopasslawsagainst the water pollution. Second, we should savewaterinourdailylife,turnoffthetapsintime,takeashower instead of a bath, and always remember tocollectandreusewater. Third,letstrytospreadthemessage about protecting and saving water. Makemore people around us know
22、 the problem of watershortageandhowtohelpsolveit.Letstryourbesttosavewaterandourplanet.StudentUnionYou can write it like this.MakingPostersAboutNaturalResources 1.Dividetheclassintoseveralgroups:WaterGroup,TreeGroup,SoilGroup2.Eachgroupshoulddiscusstheirownuses,theproblemsthattheyfaceandtheirwishes.
23、Thengiveareportinclass. Example:3. Uses: I am soil. Plants cant grow without me. People use me to make many things Problems:Sometimes people use too many chemicals in the fields. Whats worse, they put waste into the land So Im hurt. Please help me. Wishes: I hope human beings can protect and take ca
24、re of me. And then I could do more useful things for them 3.Makesomeposterswiththeresult. 1.Ifwewanttousetheseawater,wemust_(拿拿走）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,iti
25、seven_(更渴的更渴的)6.While_(几乎，差不多几乎，差不多)oftheearthiscoveredwithwater,wearestillshortofdrinkingwater.takeawayavoiddiscoverdaybydaythirstiernearly1.HowdidyougettheMP4,fromashoporbyphone?_.Ialwayslikeshoppingonline.A、NoneB、NeitherC、BothD、All2.Thetrees_wellifwe_them.A.wontgrow;donttakegoodcareofB.B.dontgrow
26、;donttakegoodcareofC.dontgrow;wonttakegoodcareofD.wontgrow;wonttakegoodcareof3.We_manydeserts_greenlandsofar.A.changed;intoB.havechanged;intoB.C.arechanging;intoD.change;into4.Youcant_peoplefromsayingwhattheythink,butyoucanchangeyourself.A.stopB.preventC.keepD.A,B,orC做一做做一做BABDWelearnWelearn: :1.som
27、ewords:1.somewords:avoid,discover,thirsty,avoid,discover,thirsty,nearly,lawnearly,law2.somephrases:2.somephrases:daybyday,beshortofdaybyday,beshortof3.somesentences:3.somesentences:(1)But peoples need for water is (1)But peoples need for water is increasing day by day. increasing day by day. (2)Whil
28、e nearly of the earth is covered(2)While nearly of the earth is covered with water, we are still short of drinking with water, we are still short of drinking water. water.Wecan:Wecan:1.Talkaboutwaysofsavingwater.1.Talkaboutwaysofsavingwater.2.Summarizeandusetheindefinite2.Summarizeandusetheindefinitepronounandadverbcorrectly.pronounandadverbcorrectly.3.Writeaproposal.3.Writeaproposal.SummaryAssignmentRead1a.Reviewtheusefulexpressionsandkeysentenceswhichwelearninthistopic.PreviewSectionAinTopic3.
