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1、Unit13We’retryingtosavetheearth!SectionA1a~1c新盈中学谢彩雯一、教学目标:1.语言知识目标基本词汇:litter,advantage,bottom,fisherman,coal,ugly,cost,wooden,plastic,takeaway,bin,shark,fin,method,cruel.Harmful,chain,ecosystem,industry,law,scientific,afford,reusable,transportation,recycle,napkin,upside,gate,bottl
2、e,president,inspiration,iron,work,metal,creativity,基本词组:beharmfulto,atthetop(ofsth.),takepartin,turnoff,takeaction,throwaway,putsth.togooduse,pull…down,bringback基本句型:We’retryingtosavetheearth!Theriverusedtobesoclean.Theairisbadlypolluted.Noscientificstudieshaveshowedthatsharkfinsare
3、goodforhealth.Weshouldhelpsavethesharks.2.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。3.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:(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.PresentationShowthepictureoftheearthandtellstudents
4、theearthispollutednow.Forexample:(1)Thefactoriesthatburncoalpollutetheairwithalotofblacksmoke.(2)Factoriesputwasteintotheriver.(3)Peopleshouldthrowawaylitterinthebin.(4)Therearemorecarsontheroad.Step2.Learning1.Herearesomewordsrelatedtodifferentkindsofpollution.Writethemintheboxbelo
5、w.Thenaddmorewords.2.AskSstoshowtheiranswers.Step3.Listening1.1bListenandcompletethesentences.Whatwastheproblem?Theriverwas_____________.Eventhebottom(底部)oftheriverwasfullof________.Therewerenomore______forfishermen(渔民)tocatch.Whatcausedtheproblem?Peoplearethrowing_______intotherive
6、r.Factoriesareputting______intotheriver.Howshouldtheproblembesolved?Weshouldwritetothe____________andaskthemto___________thefactories.Everyoneshouldhelpto__________theriver.Keys:reallydirtyrubbishfishlitterwastegovernmentclosedowncleanup2.Listenagainandcheck(√)thesentencesyouhear.1)
7、Wecouldgofishingintheriver.2)Theriverwasreallydirty.3)Theriverhasalwaysbeenthenicestriverinthistown.4)Weshouldasktheteachersforhelp.Keys:23Step4.Practice1.Role-playtheconversationin1c.Mark:Theriverwasdirty.Eventhebottomoftheriverwasfullofrubbish.Tony:Butitusedtobesoclean!Mark:Yes,bu
8、tpeoplearethrowingl