Unit2Topic2SectionD课件仁爱科普版英语九年级上册

Unit2SavingtheEarthTopic2

Alltheseproblemsareveryserious.SectionDBytheendofthelesson,youwillbeableto1.Understandthetextbetter.2.Talkaboutwaysofsavingwater.3.writeaproposal.Learningaims:Whatistheearthmainlycoveredwith?Nearly_______oftheearthiscoveredwithwater./'nɪəli/

adv.几乎，将近becoveredwith被......覆盖¾three-fourthsWeare

facingaserious

watershortage.Dowehaveenoughwatertodrinkanduseorareweshortofwater?Wearestill

short

of

drinkingwater./'θɜ:sti/

adj.缺水的；口渴的beshortof缺乏Theworldisthirsty./'ʃɔ:tɪdʒ/

n.不足；缺失；短缺Howcanweavoidaseriouswatershortage?Weshouldprotectourwaterresourcesandnotpollutethem./ə'vɔɪd/

v.防止，避免/'ri:sɔ:s/;/rɪ'sɔ:s/

n.资源；财力Weshoulddiscoverwaysto

reusewater.Weshouldpasslawsagainstwaterpollution./dɪ'skʌvə/

v.发现，找到/,ri:'ju:z/

v.再次使用；重复使用/lɔ:/

n.法律，法令；定律Whatcanwedotosavewaterinourdailylife?Canyouguessthecontentofthevideo?Doyouhaveanysuggestionsfortheboy?Turnoffthewater/tapwhilebrushingteethDon’twastewater!becoveredwithbeshortofdrinkingwaterwatershortagewaterresourcesreusewaterpasslawswaterpollutionTurnoffthewater/tapDon’twastewater!Let’sreadandfindtheanswer!Jigsawreading&annotationreadingStudentABCDParagraph123leader(representor)Whatelsecanwedotosolvetheproblemof

theshortageofwater?1aReadthepassageandputthefollowingparagraphsinthecorrectorder.()Theseaseemstohavethebestanswer.……Ifscientistscanfindcheaperwaystodoit,wecansolvetheproblemoftheshortageofwater.()Howcanweavoidaseriouswatershortage?First,weshould…….Second,weshould…….Third,weshould…….Scientistshavemadesomeprogress…….But…….Westilldon’thaveenoughwater.Whatelsecanwedo?()Althoughtheworldishungry,itiseventhirstier.Whilenearly¾oftheearthiscoveredwithwater,wearestillshortofdrinkingwater.Thisisbecause…….Sowecan’t…….123ProblemSolutionFuturePleasegiveyourreasonsandshareyourannotation.Thinkaboutthesequestions:1.Whyisourworldthirstywhen¾oftheearthiscoveredwithwater?2.Whatcanwedonowtoavoidthewatershortage?3.Whatwillbethebestwaytosolvetheprobleminthefutureinthepassage?

4.Doyouknowanyotherwaystosolvetheproblem?Whatisit?Example:Passlaws(n.法律)againstwaterpollution.Collectandreusewastewater.……Discussdifferentwaysofprotectingandsavingwateringroupsoffour.

Writedownthekeyinformation.2GroupworkHowtoprotectandsavewater?Example:Passlawsagainstwaterpollution.Collectandreusewastewater.————————————————————————————5.————————————————————6.——————————————————________________________________________8.______________________________________________TurnoffthetapsintimeTakeashowerinsteadofabathstop…from…,pour…into…,turnoff,tap(水龙头),takeashower,cleanthefloor,flushthetoilet,throw…into…Stopthefactoriesfrompouringwastewaterintorivers.Don’tthrowlitterintothewaterReusetheshowerwatertocleanthefloor/flushthetoilet.Leteverybodyknowtheimportanceofsavingwater.ConsolidationFirst,weshouldsavewaterandnotwasteit.weshould________________andnot_____________.makeuseofwaterplaywithwaterweshould____________insteadof_____________.takeashowertakingabathCanyoulistmorespecificmeasures?turnoffthetapsintimetosavewaterweshould_________________________________.ConsolidationSecond,weshouldprotectourwaterresourcesandnotpollutethem.Forexample,weshould____________________________stopthrowinglitterintothewaterThechemicalfactoriesshould____________insteadof_____________.dealwithwastewaterproperlypouringwastewaterintostreamsdirectlyThegovernmentshould___________________________passlawsagainstwaterpollutionConsolidationThird,weshoulddiscoverwaystoreusewater.weshould____________________________________________.weshould_____________________________insteadof_____________wecan______________________reuseshowerwaterfortoiletflushing/floorcleaningreuseleftdrinkingwatertowaterplantscollectrainwaterforgardeningthrowingitawayWriteaproposalaboutsavingwatertoallthestudentsinyourschool.3Youcanwriteitlikethis.Writeaproposalaboutsavingwatertoallthestudentsinyourschool.Mydearfriends,Waterisveryimportanttohumanbeings.Let’sdosomethingtoprotectandsaveit.First,________.Second,_________.Third,_________.Let’stryourbesttosavewaterandourplanet.3Self-Assessment/peer-Assessment(1pointsforeach)offeratleastthreesuggestions12345supporteachsuggestionswithdetails12345usethewordsandphraseslearntinthisperiod12345

Inmyopinion,weshoulddosomethingtoprotectandsavewater.

First,weshouldsavewaterandnotwasteit.Remembertoturnoffthetapewhenweleave.Second,weshouldprotectourwaterresourcesandnotpollutethem.Thegovernmentmustpasslawsagainstwaterpollution.Third,weshoulddiscoverwaystoreusewater.Wecancollectwastewaterandreuseitinotherways.

Inaword,waterisveryimportantinourdailylife.Weshoulddoeverythingwecantoprotectandsaveit.SummaryWelearn:

1.Somewords:avoid,disco