SectionA(1a-1c)Unit13We’retryingtosavetheearth. 学习目标Keywords&phrases:litter,bottom,fisherman,environmentalprotection.Keysentences:1.Peoplearethrowinglitterintotheriver.Eventhebottomoftheriverisfullofrubbish.2.Everyoneinthistownshouldplayapartincleaningitup!.Totalkaboutpollutionandenvironmentalprotection. Let'swatchavideo!Warming-upEarthSong waterpollutionnoisepollutionlandpollutionairpollutionWhatkindsofpollutiondoyouknow?pollution noisepollution airpollution waterpollution landpollution Doyouknowwhatcausedthepollution?Whatshouldwedotosavetheearth?Freetalk Pre-listening1aHerearesomewordsrelatedtodifferentkindsofpollution.Writethemintheboxbelow.Thenaddmorewords.loudmusiccarsrubbishplaneslitteringshipsfactoriessmokingbuildinghousesmobilephoneslitter/ˈlɪtə(r)/v.乱扔n.垃圾；废弃物rubbishn.垃圾；废弃物 noisepollution________________________________________________________________________________________________airpollution__________________________________________________________________________________________waterpollution____________________________________________________________________________________loudmusicplanesbuildinghousesmobilephones(machines,crowds)carsfactoriessmokingbuildinghouses(burning,powerplants)rubbishlitteringshipsfactories(sewage,pesticides) 1bWhile-listeningListenandcompletethesentences.Whatwastheproblem?Theriverwas___________.Eventhebottomoftheriverwasfullof_________.Therewerenomore____________forfishermentocatch.Whatcausedtheproblem?Peoplearethrowing______________intotheriver.Factoriesareputting______________intotheriver.Howshouldtheproblembesolved?Weshouldwritetothe_____________andaskthemto_____________thefactories.Everyoneshouldhelpto_____________theriver.reallydirtyrubbishfishlitterwastegovernmentclosedowncleanup Listenagainandanswerthequestions.Hewantstogoswimmingintheriver.Becausetheriverwasreallydirty.Eventhebottomoftheriverwasfullofrubbish,andtherewerenomorefishforfishermentocatch.Itusedtobesoclean.2.Whydoesn’tMarkwanttogowithTony?WhatdoesTonywanttodolaterthisafternoon?3.Howwastheriverinthepast? Listenandread.ListenandreadTony:Hey,Mark,maybewecouldgoswimmingintheriverlaterthisafternoon.Mark:Idon’tthinkIwanttogo,Tony.Tony:Whynot?Mark:Iwastherelastweekendandtheriverwasreallydirty.Eventhebottomoftheriverwasfullofrubbish,andtherewerenomorefishforfishermentocatch.下午晚些时候……的底部 Tony:Noway!Itusedtobesoclean.Infact,ithasalwaysbeenthenicestriverinthistown.Mark:Notanymore.Ithinkpeoplearethrowinglitterintotheriver.Factoriesarealsoputtingwasteintotheriver.Tony:That’sterrible!Weshouldwritetothegovernment.Theyshouldclosedownthefactories.Mark:Goodidea!ButIthinkeveryoneinthistownshouldhelptocleanuptheriver,too.Everyoneshouldplayapart,notjustthegovernment.曾经……;过去常常……关闭playapart=playarole参与；扮演角色；起作用 Let'swatchavideo! Post-listening1cRole-playtheconversation.Thenmakeyourownconversationsaboutthekindsofpollutionin1a.Mark:Theriverwasdirty.Eventhebottomoftheriverwasfullofrubbish.Tony:Butitusedtobesoclean!Mark:Yes,butpeoplearelitteringintheriver.Tony:Everyoneinthistownshouldplayapartincleaningitup! Languagepoints1.We’retryingtosavetheearth!我们正在竭尽全力拯救地球!trytodo=tryone’sbesttodo努力去做某事e.g.We’ll try tofinishtheworkinaweek.我们将努力在一周内完成这项工作。 2.Herearesomewordsrelatedtodifferentkindsofpollution.berelatedto与……有关e.g. Isthedriverrelatedtotheaccident?司机和这起事故有关吗？ 3.Eventhebottomoftheriverwasfullofrubbish.Yes,butpeoplearethrowinglitterintotheriver.litter和rubbish都可指“垃圾”，用作不可数名词。litter指“（室内或公共场所）乱扔的废物（纸屑、不要的包装纸、废瓶等）”还可回收。rubbish指“没用的东西（被扔或将要丢弃的无用的东西）”不可回收。 4.Everyoneinthistownshouldplayapartincleaningitup!playapartin在……方面起作用e.g.Agooddietplaysalargepartinhelpingpeoplelivelonger.健康的饮食在帮助人们长寿方面起着非常大的作用。 HomeworkPreviewtheconversationin2d.Dotheexercisesinstudents’book.