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1、教学目标： 知识技能： 1. Targetlanguage: We’retryingtosavetheearth.Peoplearethrowinglitterintotheriver.Theriverusedtobesoclean.Everyoneshouldhelptocleanuptheriver.2. Grammar: Presentprogressive,usedto,modalverbs3. Wordsandexpressions;(1) Curriculumwords:litter,bottom,fisherman (2) Us
2、efulexpressions:befullof,put…into,throw…into,cleanup,playapartin,closedown 过程方法 Accordingtodesigningsometasks,totrainstudents’listeningabilityandtotrainstudents’communicativecompetence． 情感态度: Everyoneshouldkeepourriversclean.学习策略: Listeningforkeywords,transforminginf
3、ormation.重点 难点：TargetLanguage1．Howtotrainstudents’listeningability．2．Howtotrainstudents’communicativecompetence．教学内容及问题情境 学生活动 设计意图1a. TointroduceSstotheunitgoal,talkaboutpollutionandenvironmentalprotection.Picture:Thefourpicturesshowdifferentformsofenvironmentalpollution.Th
4、efirstpictureontheleftshowsanairplaneflyingoversomehouses.Theairplaneseemstobeflyingaquitealowaltitude,sothenoiselevelmustbequitehighfoethepeoplelivinginthesehouses.Thisisconsiderednoisepollution.Thesecondpictureshowssomevehiclesgiveoutexhaustfumesandcausingairpollution.Inth
5、ethirdpicture,weseebigchimneysgivingoffaloofsmokeandpollutingtheair.Thelastpictureshowsarubbishdumphatpollutestheenvironmentaroundit. Whatotherthingscausepollution?AskSstocompletetheactivityasaclass,thenworkinpairstothinkofmorewordstoaddtothelistsforeachcolumn.1b.TohelpSsrec
6、ognizethetargetlanguageinnaturalspeech.Everyoneneedstoplayapart:Intheconversation,theboysaretalkingabouttheriverintheirtownbeingpollutedbylitterandindustrialwaste.Oneofthemwantstowritetothegovernmentabouttheproblem,buttheotherboywiselysaysthatcleaninguptheriveriseveryone’sre
7、sponsibility,notjustthegovernment’s. PredictingtheanswersSsworkinpairstopredicttheanswerstotheactivity,thenplaytherecordingforSstofillinthegapsandreviewanswersasaclass. 1c.TogiveSsguidedpracticeinusingthetargetlanguagetotalkaboutpollutionandenvironmentalprotection.Reviewofu
8、sedtoandshould. Lookatthepicturesandwritethesewordsintheboxesbelow.Thenwrit
