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1、SectionB(3a-3b)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,bottle,president,inspira
2、tion,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.Noscientificstudieshaveshowedthatsharkfinsareg
3、oodforhealth.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。I.Revision(1)Writedownthesephrases.停止乘小汽车回收纸用纸巾
4、好好利用用垃圾建造房倒置经营小生意回复，归还旧玻璃瓶拆下一个有创意的大脑开一个小店更受欢迎的作品给他人带来欢乐(1)Talkabout2bwithyourpartner.II.Presentation(1)Whatshouldwedotosavetheearth?Turnoffthelightswhenweleavearoom.Takeourownbagswhenshopping.Rideabike.Recyclepaper.Don’tusepapernapkins.(2)Whatshouldgovernmentsdotos
5、avetheearth?Theyshouldclosedownthefactoriesthatputwasteintotheriver.Setupalotofdustbinsonthestreet.Stoppeoplefromusingwoodenchopsticks,plasticbowlsandbags.Organizepeopletocleanupthestreetsandrivers.III.Writing(1)Workon3a.Whichpartsofthetown/cityhaveaniceenvironment
6、?Whyaretheynice?Whichpartsneedtobeimproved?Why?GoodenvironmentWhyBadenvironmentWhy Fillinthechartaboutyourcity.(2)Workon3b.Writealettertothecitymajorabouttheproblemandyoursuggestions.Inyourletter,describetheenvironmentalproblemsinyourtown/city.①Whataretheproblems
7、?②Wherearethey?③Whatorwhoiscausingtheseproblems?Then,givesuggestionsorpossiblewaystosolvetheproblems.ØIthinkthat…ØWeshould/could…ØIsuggest…本次写作内容是一封书信,信中首先要介绍你所在城市存在有哪些环境问题，是谁造成的这些问题，然后提出解决这些环境问题的方法和措施，可以结合3a中列举的问题和前面学过的解决办法来完成这封信。OnepossibleversionDearSir/Madam,En
8、vironmentalproblemsarebecomingmoreandmoreseriousallovertheworld.Withthedevelopmentofthesociety,therearetoomanycarsonthestreetsinourcity.Carshavem
