Unit13SectionA11a2d課件人教版英語九年級全冊

Unit13We'retryingtosavetheearth!SectionA1(1a-2d)1aHerearesomewordsrelatedtodifferentkindsofpollution.Writethemintheboxbelow.Thenaddmorewords.Whatwastheproblem?Theriverwas__________.Eventhebottomoftheriverwasfullof___________.Therewerenomore__________forfishermentocatch.Whatcausedtheproblem?Peoplearethrowing_______intotheriver.Factoriesareputting________intotheriver.Howshouldtheproblembesolved?Weshouldwritetothe______________andaskthemto_______________thefactories.Everyoneshouldhelpto___________theriver.Listenandcompletethesentences.reallydirtyrubbishfishlitterwastegovernmentclosedowncleanup1bRole-playtheconversation.Mark:Theriverwasdirty.Eventhebottomoftheriverwasfullofrubbish.Tony:Butitusedtobesoclean!Mark:Yes,butpeoplearelitteringinthe

river.Tony:Everyoneinthistownshouldplayapartincleaningitup!1cusedtodosth.過去(常常)做playapartindoingsth..參與做某事；在做某事方面起作用A.landpollutionB.airpollutionC.noisepollutionD.waterpollutionListentotheinterview.CirclethekindsofpollutionthatJasonandSusantalkabout.2aListenagainandcompletethesentences.1.Theairisbadlypollutedbecausethereare__________ontheroad

thesedays.2.Factoriesthatburncoalalso______theairwithalotofblack

smoke.3.Thereisalsotoomuchrubbishandwaste.People___________________thingseveryday.4.Peoplearealsolitteringin____________likeparks.Thisturns

beautifulparksintouglyones.morecarspollutearethrowingawaypublicplacesadj.丑陋的2badvantagen.優(yōu)點；有利條件（反）disadvantage缺點外賣食物makeadifferenceto對...有作用或影響1.Well,tocutdownairpollution,weshouldtakethebusorsubwayinsteadofdriving.cutdown減少cutdown砍倒；減少Peoplecutdownmanytreessoalotofanimalslosetheirhomes.人們砍倒了很多樹，因此大量的動物失去了它們的家。cutoff切掉Thedoctorhadtocutoffhisarmtosavehislife.為了挽救他的生命，醫(yī)生不得不將他的胳膊截肢。cutout刪除Youcancutouttheunimportantdetails.你可以刪掉不重要的細節(jié)。cutup切碎Cutupthemeat，please.請把肉切碎。spend的主語是人sb.spend…(in)doingsth.某人花費時間/金錢做某事sb.spend…onsth某人花費時間/金錢在某事上Iusuallyspendanhour(in)readingEnglisheverymorning.每天早上我通?；?小時讀英語。take的主語是形式主語itIttakessb.sometimetodosth.做某事花費某人一些時間Ittakesme10minutestogotoschoolbybus.我上學乘公共汽車需要花費10分鐘。pay的主語是人sb.+pay(+sb.)+somemoney+forsth.某人為某物花費/付給(某人)錢Ipaidmuchmoneyforthecomputer.我買這臺電腦花了很多錢。cost的主語是物sth.costsb.somemoney某物花了某人多少錢。Thewatchcostme120yuan.這塊手表花了我120元。2.“花費”spend,take,pay,cost的區(qū)別Sotogether,ouractionscanmakeadifferenceandleadtoabetterfuture!2dRead2dandcompletethemindmap.1.He___gooutwithhisparents,butnowhe____stayingathomealone.A.usedto;isusedtoB.isusedto;usedtoC.usedto;usedtoD.isusedto;isusedto2.Theinterestingbook___me10yuan.A.tookB.paidC.spentD.cost3.Wemustdosomethingusefulto___pollution.A.cutoffB.cutupC.cutdownD.cutout4.Smokingcan___lungcancer.You’dbettergiveitup.A．workonB．leadtoC．takeawayD．putoutExercisesTheearthispolluted.Therearedifferentkindsofpollutionaroundus.airpollutionThefactoriesthatburncoalpollutetheairwithalotofblacksmoke.n.煤炭Carsalsocauseairpollution.Somepeoplesmokeinpublicplaces.waterpollutionn.垃圾，廢料Factoriesputwasteintotheriver.noisepollutionCarsmakemuchnoise.Peoplebuildhouses