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Unit2SavingtheEarthTopic2Alltheseproblemsareveryserious.SectionDGrammarIndefinitePronounandAdverb_______ofuslikespollution.Don’tsp

it___________inpublic._________shouldcareforwildanimalsandplantmoretrees.Weshoulddo___________wecantoprotecttheenvironment.Non

eanywhereEveryoneeverythingIndefinitepronounandadverb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.Youwillfindyo

urbagsomewhere.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?AnybodycandoitexceptTo

m.1.—Whichwouldyouliketodrink,teaorcoffee?—________,thanks.I’mnotthirsty.A.EitherB.NeitherC.LittleD.Few2.Thestudentsaredoingsomecleaning.Som

earesweepingthefloor,________arecleaningthedesksandchairs.A.otherB.theotherC.anotherD.others3.Myparentsare________doctors.A.bothB.a

llC.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

Functions•______aresult（结果）,alotofrichlandhaschanged_________（变为）desert.•Treescanstopthewindfrom______theearth_____(吹走）.•Weshouldn

’tleaverubbish___________(到处).•Alltheseproblemsareveryserious,_____(所以)wemustdosomethingnow.intoblowingawayhereandtheresoAswaterpol

lutionImagineyouarewater.Pleasetellusyourfunctions,problemsandwishes.I’mwater.Iusedtobe…Factoriesusuallypour…Iwishhumanbeings…1aR

eadthepassageandputthefollowingparagraphsinthecorrectorder.()Theseaseemstohavethebestanswer.Thereisplentyofwaterinthesea.Butweneedtotakethes

altawayfromtheseawater.Thisisveryexpensive.Ifscientistscanfindcheaperwaystodoit,wecansolvetheproblemoftheshortageofw

ater.()Howcanweavoidaseriouswatershortage?First,weshouldsavewaterandnotwasteit.Second,weshouldprotectourwaterresourcesandnotpollutethem.Third,wesho

ulddiscoverwaystoreusewater.Scientistshavemadesomeprogressinthisfield.Today,somelargecitiesarereusingtheirwater.Butpeople’sneedforwa

terisincreasingdaybyday.Westilldon’thaveenoughwater.Whatelsecanwedo?()Althoughtheworldishungry,itiseventhirstier.Whilenearly¾oftheea

rthiscoveredwithwater,wearestillshortofdrinkingwater.Thisisbecauseabout97%ofthewaterontheearthisseawa

ter.Sowecan’tuseitforwateringplantsordrinkingdirectly.Humanscanonlydrinkandusefreshwaterfromplacesincludingrivers,lakesandund

erground.名词avoid代词动名词v.防止，避免v.发现，找到e.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….weshould

discoverwaystoreusewater.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,to

o,nothing,nobody,nowhere,noone,none,never等词，nearly则不行。nearly只与not连用。e.g.Ihavealmostneverseenhim.Inearlydidn’the

arwhattheteachersaidinclass.3.Althoughtheworldishungry,itiseventhirstier虽然世界是饥饿的，但是他更渴。4.Whilenearly¾oftheearthiscoveredwithwater,wearestillshort

ofdrinkingwater.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.Whyisourworldthirstywhen¾oftheearthiscovere

dwithwater?2.Whatcanwedonowtoavoidthewatershortage?Becauseabout97%ofthewaterontheearthisseawater,wecan’tuseitforwateringplantsordrinkingdirect

ly.First,weshouldsavewaterandnotwasteit.Second,weshouldprotectourwaterresourcesandnotpollutethem.Third,weshoulddiscoverwaystoreus

ewater.3.Whatwillbethebestwaytosolvetheprobleminthefutureinthepassage?4.Doyouknowanyotherwaystosolvetheproblem?Whati

sit?Tofindcheaperwaysoftakingthesaltawayfromtheseawater.2Discussingroupsdifferentwaysofprotectingandsavingw

ater.Writedownthekeyinformation.Example:1.Passlaws(n.法律)againstwaterpollution.2.Collectandreusewastewater

.……3.Writeaproposalaboutsavingwatertoallthestudentsinyourschool.Mydearfriends,Waterisveryimportanttohumanbeing

s.Let’sdosomethingtoprotectandsaveit.First,________.Second,_________.Third,_________.Let’stryourbesttosavewat

erandourplanet._____________Mydearfriends,Waterisveryimportanttohumanbeings.Let’sdosomethingtoprotec

tandsaveit.First,weshouldprotectourwaterresourcesandnotpollutethem.Thegovernmentshouldalsopasslawsagainstthewater

pollution.Second,weshouldsavewaterinourdailylife,turnoffthetapsintime,takeashowerinsteadofabath,andalwaysremembertocollectandreusewater.Third,let

’strytospreadthemessageaboutprotectingandsavingwater.Makemorepeoplearoundusknowtheproblemofwatershortageandhowtohelpsolveit.Let’stryourbesttosavewate

randourplanet.StudentUnionYoucanwriteitlikethis.MakingPostersAboutNaturalResources1.Dividetheclassintoseveralgroups:WaterGroup,TreeGroup,SoilGroup

…2.Eachgroupshoulddiscusstheirownuses,theproblemsthattheyfaceandtheirwishes.Thengiveareportinclass.Example:Uses:Iamsoil.Plantscan’

tgrowwithoutme.Peopleusemetomakemanythings…Problems:Sometimespeopleusetoomanychemicalsinthefields.What’sworse,theyputwasteintotheland…SoI’m

hurt.Pleasehelpme.Wishes:Ihopehumanbeingscanprotectandtakecareofme.AndthenIcoulddomoreusefulthingsforthem…3.

Makesomeposterswiththeresult.1.Ifwewanttousetheseawater,wemust_________(拿走）thesaltfromtheseawater.2.Howcanwe_________(避免)aseriouswaters

hortage?3.Weshould__________(找到)waystoreusewater.4.People’sneedforwaterisincreasing____________(一天天).5.Althoughtheworldishungry,i

tiseven______(更渴的)6.While___________(几乎，差不多)¾oftheearthiscoveredwithwater,wearestillshortofdrinkingwater.takeawayavo

iddiscoverdaybydaythirstiernearlyWelearn:1.somewords:avoid,discover,thirsty,nearly,law2.somephrases:daybyday,beshortof3.somes

entences:(1)Butpeople’sneedforwaterisincreasingdaybyday.(2)Whilenearly¾oftheearthiscoveredwithwater,wearestillshortofdrinkingwater.Wecan:1.Ta

lkaboutwaysofsavingwater.2.Summarizeandusetheindefinitepronounandadverbcorrectly.3.Writeaproposal.Summar

yAssignment•Read1a.•Reviewtheusefulexpressionsandkeysentenceswhichwelearninthistopic.•PreviewSectionAinTopic3.