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时间:2018-12-17
《九年级英语全册unit13we’retryingtosavetheearth教案2(新版)人教新目标版》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、Unit13We’retryingtosavetheearth教材分析本单元带领学生了解了一些有关地球污染,动物濒危等问题。并且教给大家如何保护濒危动物,如何通过回收利用等方式来保护地球。本单元主要复习语法内容为情态动词和动词形式变化。本课主要带领大家进行语法复习,巩固语法知识。一、三维目标(一)知识与技能1.Tolearndifferentformsofverb.2.TounderstandtheuseofModalVerbs.(二)过程和方法3.Toknowhowtousedifferentformsofverbindifferentsitu
2、ations.4.ToknowhowtouseModalVerbsindifferentsituations.(三)情感态度和价值观5.Afterlearningthispart,everystudentwillbeabletodescribetheirawarenessoftheserioussituationofpullutionandsolutionstoenvironmentalproblemsusingwhatwehavelearnedinthislesson.教学重点1.Tochangeformsofverbaccordingtosp
3、ecificsituation.2.TouseModalVerbsproperly.教学难点1.Tochangeformsofverbaccordingtospecificsituation.2.TouseModalVerbsproperly.二、教学策略根据本课教学目标和重点内容,教师可采用读,小组讨论,口头及书面练习等活动来引导学生进行学习。三、教学准备ppt,recorder,mutiple-media四、教学环节1、课堂导入Step1Lead-in判断下列句子中使用了什么时态及情态动词。1.Wearetryingtosavetheeart
4、h.2.Theriverusedtobesoclean.3.Itwasconsideredthenicestriverinthetown.4.Theairhasbecomereallypolluted.5.Weshouldhelpsavewthesharks.Answers:1.现在进行时2.usedto3.一般过去时的被动语态4.现在完成时5.should2、课堂讲授Step2.Presentation1)Reviewdifferentformsofverbask现在时过去时将来时过去将来时一般主动语态ask/asksaskedshall/w
5、illaskshould/wouldask被动语态am/is/areaskedwas/wereaskedshall/willbeaskedshould/wouldbeasked进行主动语态am/is/areaskingwas/wereasking被动语态完成主动语态have/hasaskedhadasked被动语态have/hasbeenaskedhadbeenasked2)ReviewModalverbs.MainfunctionofModalVerbs.①.can(could)表示能力,could主要指过去时间;表示允许。②.may表允许,m
6、ight可以指过去时间,也可指现在时间,语气更委婉。③.must表示义务。意为“必须”(主观意志)④.shall表征询意见⑤.will表意愿,用于各种人称陈述句;表请求,用于疑问句。⑥.should/oughtto应该1、课堂练习Step3Exercises1)Fillinblankswiththecorrectformsofverbs.Interviewer:___________youever________(take)partinanenvironmentalproject?Ken:Yes,Ihave.I___________(help)w
7、ithaClean-UpDaylastyear.Itwas_________(consider)thebiggestclean-upprojectthiscity__________ever___________(have).Interviewer:Howmanypeople__________(take)part?Ken:I________(think)morethan1,000people________(come)tohelpout.Interviewer:That’sfantastic!Iguesseveryoneinthiscityis
8、____________(try)toimprovetheenvironment.Ken:Yes,evertoneshould_____
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