Unit 13 section A 1a-1c

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1、Unit13We’retryingtosavetheearth!TheFirstPeriodSectionA1a–2c【Teachingaims】一、听、说、读、写以下词汇及词组：litter,bottom,fisherman,coal,public,ugly,advantage,cost,wooden,plastic,thebottomof,makeadifference二、通过学习，口、笔头掌握下列句型：1)Theriverusedtobesoclean.2)Peoplearethrowingl

2、itterintotheriver.3)Ithasalwaysbeenthenicestriverinthistown.4)Weshouldwritetothegovernment.5)Ithinkoneproblemisthattheairisbadlypolluted.三、1.能听懂关于环境污染和环境保护的听力材料。2.能正确运用现在进行时态，usedto结构，现在完成时态，被动语态和情态动词谈论环境污染和环境保护。四、通过谈论环境污染，学生能培养自己的环保意识。做到：保护环境，从我做起，从小事

3、做起。Difficulties：能正确运用现在进行时态，usedto结构，现在完成时态，被动语态和情态动词谈论环境污染和环境保护。【Teachingsteps】BeforelisteningWarm-upandrevision（课堂热身和复习）1.HaveSswatchthevideoanddiscuss:Whatisthevideoabout?2.Lookatthepicturesandanswerthequestion:Whataretheyabout?Howmanykindsofpolluti

4、ondothesepicturesshow?教学设计说明：创设情景，导入新课。WhilelisteningPresentation（呈现新知识）1.Groupwork.Theairisn’tclear…Therearemoreandmorecarsandfactories…Weshould…Thereareallkindsofnoisesinourlives.Peoplehavemoremodernmachines.Weshould…教学设计说明:练习本课重点短语句型，同时，对后面听力的进行预测。降

5、低听力难度。2.听1b录音一遍，回答下面的问题：WhatkindofpollutionareTonyandMarktalkingabout?__________________3.Workon1b.Listenandcompletethesentences.Whatwastheproblem?Theriverwas________________.Eventhebottomoftheriverwasfullof____________.Therewerenomore____________forfi

6、shermantocatch.Whatcausedtheproblem?Peoplearethrowing__________intotheriver.Factoriesareputting_________intotheriver.Howshouldtheproblembesolved?Weshouldwritetothe_____________andaskthemto________________thefactories.Everyoneshouldhelpto____________the

7、river.1.模仿秀:跟读模仿，注意语音语调。2.PairworkWorkon1c.根据听力材料，练习下列对话：根据1b的表格提示，和同伴分角色表演Tony和Mark的对话。结合1a的内容，再任选一种污染表演对话。Mark:Theriverwasdirty.Eventhebottomoftheriverwasfullofrubbish.Tony:Butitusedtobesoclean!Mark:Yes,butpeoplearethrowinglitterintotheriver.Tony:Eve

8、ryoneinthistownshouldplayapartincleaningitup!教学设计说明:进一步启发学生思维，再次对下一段听力进行预测。3.Workon2a.ListentoJasonandSusantalkaboutpollution.Thencirclethekindsofpollutionthattheytalkabout.4.听第二遍录音，判断下面句子的正、误。1)Jasonthinksthattheairisbadlypolluted.()2)