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Unit13Wearetryingtosavetheearth.airpollutionwaterpollutionnoisepollutionlandpollution1aHerearesomewordsrelatedtodifferentkindsofpollution.Writethemintheboxbelow.Thenaddmorewords.noisepollution________________________________________________carsairpollution____________________________________________waterpollution________________________________________________loudmusicplanesmobilephonesfactoriescarssmokingshipsfactorieslitteringrubbishbuildinghousesbuildinghousesloudmusiccarsrubbishplaneslitteringshipsfactoriessmokingbuildinghousesmobilephonesHelpsavetheearthWemustthinkofbetterwaytotreatourplanetinfuture.Nolittering!Startwithlittlethings!Youusealotofnewplasticbags.That’sbadfortheEarth.Youuseyourownbag.That’sgoodfortheEarth.Yougoshopping.Whatdoyoudo?Youusepaperononesideonly.That’sbadfortheEarth.Youusepaperonbothsides.That’sgoodfortheEarth.Whenyouwriteonapieceofpaper,whatdoyoudo?•closedownthefactories;•helptocleanuptheriver;•takethebusorsubway;•rideabike;•bringabagtogoshopping,throwrubbishinthecans;•turnoffthelightswhenyouleavearoom;•usepaperorresusablebags;•recyclebooksandpaper;•turnofftheshowerwhenyouwashyourhair;•don'tusenapkins;1bListenandcompletethesentences.Whatwastheproblem?Theriverwas_____________.Eventhebottom(底部)oftheriverwasfullof_________.Therewerenomore______forfishermen(渔民)tocatch.reallydirtyrubbishfishWhatcausedtheproblem?Peoplearethrowing_______intotheriver.Factoriesareputting______intotheriver.Howshouldtheproblembesolved?Weshouldwritetothe____________andaskthemto___________thefactories.Everyoneshouldhelpto__________theriver.litterwastegovernmentclosedowncleanupMark:Theriverwasdirty.Eventhebottomoftheriverwasfullofrubbish.Tony:Butitusedtobesoclean!Mark:Yes,butpeoplearelitteringintheriver.Tony:Everyoneinthistownshouldplayapartincleaningitup!Role-playtheconversation.Thenmakeyourownconversationsaboutthekindsofpollutionin1a.1cMark:Theskyisso______.Wecanhardlyseetheblueshythesedays.Tony:Butitusedtobeso______!Mark:Yes,buttherearesomany_____ontheroad.Andfactoriespollutetheairwithalotof______smoke.Tony:Everyoneinthistownshouldplayapartinmakingitclear!Finishtheconversationandrole-playit.1cMark:Theneighborhoodisso_______.Ican’tsleepwellorworkwell.Tony:Butitusedtobeso______!Mark:Yes,buttherearesomany_________housesandcars.Mostpeopleoftenusemobilephones.Tony:Everyoneinthistownshouldplayapartincuttingdownnoisepollution!Finishanotherconversationandrole-playit.1cPointsonP971.trytodo=tryone’sbesttodo努力去做某事2.mobilephones手机3.rubbish,litter,waste垃圾,废物4.thebottomoftheriver河底5.befullof充满……6.fisherman-fishermen渔民7.government政府8.throwlitterintotheriver把垃圾扔到河里9.asksb.todo要求某人干某事10.closedownthefactories关闭工厂11.cleanup打扫12.usedtobe…过去常常…13.playapartin…参与，在……中扮演角色Review1.努力去做某事2.手机3.垃圾,废物4.河底5.充满……6.渔民7.政府8.把垃圾扔到河里9.要求某人干某事10.关闭工厂11.打扫12.过去常常…13.在……中起作用，在……中扮演角色trytodomobilephoneslitter;rubbish;wastethebottomoftheriverbefulloffishermangovernmentthrowrubbishintotheriverasksb.todosth.closedownthefactoriescleanupusedtobeplayapartin2aListentotheinterview.CirclethekindsofpollutionthatJasonandSusantalkabout.A.landpollutionB.airpollutionC.noisepollutionD.waterpollution1.Theairisbadlypollutedbecausethereare________ontheroadthesedays.2.Factoriesthatburncoalalso______theairwithalotofblacksmoke.3.Thereisalsotoomuchrubbishandwaste.People___________________thingseveryday.4.Peoplearealsolitteringin____________likeparks.Thisturnsbeautifulparksintouglyplaces.morecarspollutearethrowingawaypublicplaces2bListenagainandcompletethesentences.Interviewer:JasonandSusan,whatareyourideasforsolvingtheseproblems?Jason:Well,tocutdownairpollution,weshouldtakethebusorsubwayinsteadofdriving.Susan:Yeah,orrideabike.Thereareotheradvantagesofbikeriding.It’sgoodforhealthanditdoesn’tcostanything!2dRole-playtheconversation.Interviewer:Greatideas!Whataboutwastepollution?Susan:Mmm,Ithinksimplethingslikebringingabagtogoshoppingcanhelp.Istarteddoingthatayearago.Jason:Me,too.Also,InevertakewoodenchopsticksorplasticforkswhenIbuytakeawayfood.Iusetheonesathome.Susan:Andremembertothrowrubbishinthebinsandkeeppublicplacescleanandbeautifulforeveryone.Interviewer:Sotogether,ouractionscanmakeadifferenceandleadtoabetterfuture!Completethechart.ProblemsSolvingproblemsairpollutionwastepollutiontakethebus,subwayorrideabikeinsteadofdriving.bringabagtogoshopping.usechopsticksorforksathome.throwrubbishinthebins.1.It’sgoodforhealthanditdoesn’tcostanything!costv.花费；使付出指花费金钱，主语通常是物。cost的过去式和过去分词均为cost。e.g.ThenewshirtcostMrWang200yuan.王先生花了200元买了新衬衫。Howmuchdoesthenewcomputercost?新电脑花了多少钱？take,spend,pay&costtake，spend，pay和cost都可以表示“花费”，但它们的用法各有不同。1)take多表示花费时间，常用于Ittakessb.sometimetodosth.这一句型中，其中it作形式主语。e.g.Itusuallytakesme40minutestocookthedinner.2)spend多表示花费时间和金钱，主语常是人，常用于sb.spend(s)sometime/moneyonsth.和sb.spend(s)sometime/money(in)doingsth.两种句型。e.g.Davidspent2,000yuanonthenewmachine.Myfatherspendsanhour(in)watchingthenewsonTVeveryday.3)pay多表示花费金钱，主语通常是人，常用于sb.pay(s)somemoneyforsth.句型。e.g.Tommypaid20yuanforhisbreakfastyesterday.4)cost多表示花费金钱，主语通常是物，常用于sth.cost(s)(sb.)somemoney.句型。e.