九年级英语13单元课件.ppt

Unit13Weretryingtosavetheearth!,SectionA1a-2c（第1课时）,Factoriesproducetoomuchdangeroussmoke.Thetrafficproducestoomanygases.Somepeoplesmokeinpublicplaces.,airpollution,Thefactoriesthatburncoalpollutetheairwithalotofblacksmoke.,n.煤炭,Factoriesputwasteintotheriver.,waterpollution,noisepollution,Therearemorecarsontheroad.,litterv.乱扔n.垃圾rubbish，waste垃圾，废弃物,Peopleshouldthrowawaylitterinthebin.,n.垃圾箱,landpollution,1a,Herearesomewordsrelatedtodifferentkindsofpollution.Writethemintheboxbelow.Thenaddmorewords.,noisepollution_cars,airpollution_,waterpollution_,loudmusic,planes,mobilephones,factories,cars,smoking,ships,factories,littering,rubbish,buildinghouses,buildinghouses,1b.Listentothetapeandcompletethesentences.,reallydirty,rubbish,fish,litter,waste,government,closedown,cleanup,Role-playtheconversation.Thenmakeyourownconversationsaboutthekindsofpollutionin1a.,1c,2a,Listentotheinterview.CirclethekindsofpollutionthatJasonandSusantalkabout.,A.landpollutionB.airpollutionC.noisepollutionD.waterpollution,1.Theairisbadlypollutedbecausethereare_ontheroadthesedays.2.Factoriesthatburncoalalso_theairwithalotofblacksmoke.3.Thereisalsotoomuchrubbishandwaste.People_thingseveryday.4.Peoplearealsolitteringin_likeparks.Thisturnsbeautifulparksintouglyplaces.,morecars,pollute,arethrowingaway,publicplaces,2b,Listenagainandcompletethesentences.,1.Wearetryingtosavetheearth.我们正在努力拯救地球。【解析】trydoingsth尝试做某事（不一定付出很大努力）trytodosth尽力做某事（强调付出一定的努力设法完成）想一想?尽某人最大的努力做某事try_2.Butitusedtobesoclean.但它过去是如此干净。【解析】usedto的意思是_,其中to是不定式符号，不是介词，所以其后要接_。beusedto的意思是_，其中to是介词，其后要接_,【合作探究】,onesbesttodosth.,习惯干某事,过去常常做某事,动词原形,doing,2.He_gooutwithhisparents,butnowhe_stayingathomealone.A.usedto;isusedtoB.isusedto;usedtoC.useto;isusedtoD.isusedto;isusedto,LanguagePointstrytodo=tryonesbesttodo努力去做某事rubbish,litter,waste垃圾,废物thebottomoftheriver河底befullof充满fisherman-fishermen渔民throwlitterintotheriver把垃圾扔到河里asksb.todo要求某人干某事closedownthefactories关闭工厂cleanup打扫usedtobe过去是playapartin参与，在中扮演角色throwaway扔掉，抛弃turninto把变成,SUMMARY,Reviewpresentprogressive(现在进行时）,passivevoice（被动语态）,usedto用法Thinkaboutwaysofprotectingtheenvironment.,1.Weshouldnotthrow_（垃圾）intheriver.2.Theteacheraskedustofindawaytopickupthecoinsatthe_（底部）ofthebottle.3.Therearenomorefishfor_（渔夫）tocatchintheriver.,【当堂检测】,litter,bottom,fisherman,III.根据汉语意思完成下列句子。1.工厂正在往河里排放废物。Factories_intheriver.2.两年前这条河被污染了。Theriver_twoyearsago.3.甚至河底满是垃圾。Even_theriverwasfullofrubbish.,waspolluted,arepouringwaste,thebottomof,1.Reviewthenewwordsandexpressionsyouvele