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1、Unit13We’retryingtosavetheearth!SectionA1a-2c一、教学目标：语言知识目标掌握本课时所学单词和词组如：litter,advantage,bottom,fisherman,coal,ugly,cost,wooden,plastic,takeaway,bin,beharmfulto,atthetop(ofsth.),takepartin等。技能目标:能正确运用现在进行时，现在完成时，被动语态，情态动词和usedto句型。情感目标:有环境危机意识，学会关注环境保护环境。二、教学重难点：1.教学重点：（
2、1）能正确运用现在进行时，现在完成时，被动语态，情态动词和usedto句型。（2）保护环境的措施方法。2.教学难点：能正确运用现在进行时，现在完成时，被动语态，情态动词和usedto句型。三、教学步骤:Step1.WarmingupShowavideoaboutthetopicofenvironmentalprotection.Step2.PresentationWiththelightmusic,theteachershowsthepicturesoftheenviroment,comparethedifferencesandtell
3、studentstheearthispollutednow.Forexample:（1）Thefactoriesthatburncoalpollutetheairwithalotofblacksmoke.（2）Factoriesputwasteintotheriver.（3）Therearemorecarsontheroad.Inordertoimprovetheirlistening,theteacherwillintruducethepicturesinEnglish.Step3.LearningHerearesomewordsre
4、latedtodifferentkindsofpollution.Writethemintheboxbelow.Thenaddmorewords.noisepollutionairpollutionwaterpollution________________________________________________________________________________________________________________________________________________Step4.Listenin
5、g1.1bListenandcompletethesentences.2.Listenagainandcheck(√)thesentencesyouhear.Letthestudentschecktheanswersandgrapethesentencesandstructures.Inordertoimprovethestudents’listeningandspeaking,theycanfollowthetapetoreadthesentences.Step5.Practice1.Role-playtheconversationi
6、n1c.2.Makeconversationsusingthepollutionin1a.A:Theriverhasalwaysbeenthenicestriverinthistown.B:Yes,itusedtobesoclean.A:ButIwastherelastweekendandtheriverwasreallydirty.B:Whatcausedtheproblem?A:Peoplearethrowinglitterintotheriver.B:Whatshouldwedo?A:Factoriesarealsoputting
7、wasteintotheriver.B:Yes,everyoneinthistownshouldplayapart.A:Weshouldwritetothegovernmentandaskthemtoclosedownthefactories.B:Whatelsecanwedo?A:Everyoneshouldhelptocleanuptheriver.Step6.Listening1.2aListentotheinterview.CirclethekindsofpollutionthatJasonandSusantalkabout.2
8、.2bListenagainandcompletethesentences.Step7.Practice(2c)Usetheinformationin2aand2btorole-playconversati
