Unit 2 Topic 2 Section D课件仁爱版英语九年级上册

Unit2SavingtheEarthTopic2AlltheseproblemsareveryseriousSectionDLanguagegoalsBytheendoftheclass,youwillbeableto1.Masterthefollowingwords,phrasesandsentences:Words：

avoid,discover,thirsty,nearly,lawPhrases:daybyday,beshortofSentences：①Butpeople’sneedforwaterisincreasingdaybyday.②Whilenearly¾oftheearthiscoveredwithwater,wearestillshortofdrinkingwater.2.MasterIndefinitePronounandAdverb

GrammarIndefinitePronounandAdverb

_______ofuslikespollution.Don’tspit___________inpublic._________shouldcareforwildanimalsandplantmoretrees.Weshoulddo___________wecantoprotecttheenvironment.NoneanywhereEveryoneeverythingIndefinitepronounandadverb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?Grammar2.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.Grammar1.【2020•东营市】WhenAnnaopenedherwallet,shewassurprisedtofind________.Itwasempty.A.nothing B.anything C.something D.everything2.【2020•甘肃武威市】There's________wrongwiththeengine—it'smakingstrangenoises.A.nothing B.anything C.everything D.something3.【2020•黑龙江绥化】Didyoudo__________duringthelastsummervacation?A.somethingspecialB.specialsomething C.anythingspecialADC______aresult（结果）,alotofrichlandhaschanged_________（变为）desert.Treescanstopthewindfrom______theearth_____(吹走）.Weshouldn’tleaverubbish___________(到处).Alltheseproblemsareveryserious,_____(所以)oblowingawayhereandtheresoAsFunctionswaterpollution

Imagineyouarewater.

Pleasetellusyourfunctions,problemsandwishes.

I’mwater.Iusedtobe…Factoriesusuallypour…Iwishhumanbeings…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.123

名词

avoid代词

动名词

v.防止，避免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？LanguagePointsthirstyadj.缺水的;（口）渴的3.Althoughtheworldishungry,itiseventhirstier

虽然世界是饥饿的，但是他更渴。LanguagePointsv.发现，找到2….weshoulddiscoverwaystoreusewater.我们需要找到再利用水的方法。nearly

adv.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.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。LanguagePoints1bRead1aagainandanswerthequestions.

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.