英语人教版九年级全册Unit13教学设计

1、Unit13Wearetryingtosavetheearth.SectionB3a-3cTeachingAims1. KnowledgeObjects(1)KeyVocabulary(2)Structure:We'retryingtosavetheearth!Theriverusedtobesoclean.Theairisbadlypolluted.Noscientificstudieshaveshowedthatsharkfinsaregoodforhealth.Weshouldhelpsavethesharks.2. AbilityObjects能正确运用现在进行时，现在完成时，

2、被动语态，情态动词和usedto句型。3. MoralObject有环境危机意识，学会关注环境保护环境。TeachingKeyPoints(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。TeachingDifficultPoint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。TeachingstepsStep1.Revision(1)Writedownthesephrases.停止乘小汽车回收纸用纸巾好好利用用垃圾建造房倒置经营小生意回复，归还旧玻璃瓶一个有创意的大脑更受欢迎的作品拆下开一个小店给他人带来欢乐(2

3、)Talkabout2bwithyourpartner.Step2.Presentation(1) Whatshouldwedotosavetheearth?Turnoffthelightswhenweleavearoom.Takeourownbagswhenshopping.Rideabike.Recyclepaper.Don'tusepapernapkins.(2) Whatshouldgovernmentsdotosavetheearth?Theyshouldclosedownthefactoriesthatputwasteintotheriver.Setupalotofdust

4、binsonthestreet.Stoppeoplefromusingwoodenchopsticks,plasticbowlsandbags.Organizepeopletocleanupthestreetsandrivers.Step3.Writing(1)Workon3a.Whichpartsofthetown/cityhaveaniceenvironment?Whyaretheynice?Whichpartsneedtobeimproved?Why?GoodenvironmentWhyBadenvironmentWhyFillinthechartaboutyourcity.(2)Wor

5、kon3b.Writealettertothecitymajorabouttheproblemandyoursuggestions.Inyourletter,describetheenvironmentalproblemsinyourtown/city. Whataretheproblems? Wherearethey? Whatorwhoiscausingtheseproblems?Then,givesuggestionsorpossiblewaystosolvetheproblems.IthinkthatWeshould/couldIsuggest本次写作内容是一封书信,信中首先要介绍你所

6、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,Environmentalproblemsarebecomingmoreandmoreseriousallovertheworld.Withthedevelopmentofthesociety,therearetoomanycarsonthestreetsinourcity.Carshavemadetheairunhealthyforpeopletobreathe.Blacksmokeand

7、poisonousgasaregivenoffbyfactories.Factoriesalsoputwasteintotheriver.Andwhereverwego,wecanfindrubbish.Nowmoreandmorepeoplehaverealizedtheseproblems.Ithinkthatgovernmentsshouldclosedownthefactoriesanddeveloplawstostoppeoplefromdrivingcarseveryday.Isuggesteveryoneinthistownshouldhelptocleanuptheriverandthestreets.Weshouldcalloneveryoneinthetowntothrowrubbishinthedustbins.Ihopetheproblemwillbesolvedinthenearfutureandourhomew