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1、Unit2TheEnvironmentGrammar教学案4时间年月日上课时间第周周月日备课人班级节次课题Unit2TheEnvironmentGrammar总课时数第节目标1.Consolidatethecontentwhichwaslearnedinthelastlesson.2.Enablethestudentstousethepresentparticiplecorrectly.重难点Howtochangeadverbialclauseintoverb-ingasanadverbialindiffere
2、ntsituations.Theagreementofthesubjectofthemainandclausesentences.参考Textbook,referencebook方法Discussionandconsolidation教学辅助手段多媒体不用专用教室不用教学二次备课教学过程设计Step1.RevisionHelpthestudentstoreviewthecontentlearnedinthelastlesson.Step2.Payattentiontofollowingpoint:²非谓语动词作
3、状语的句型结构注意的问题。非谓语动词作状语时，一是它相当于一个状语从句，二是它逻辑上的主语必须和句子的主语一致。1.Findinghercarstolen,D.A.apolicemanwasaskedtohelpB.theareawassearchedthoroughlyC.itwaslookedforeverywhereD.shehurriedtoapolicemanforhelp2.Ctothetrainstation,thetrainhadleft.A.WhengettingB.GettingC.When
4、IgotD.HavinggotStep3.Consolidation1.Choosethecorrectsentence:Askstudentstochoosetherightansweraccordingtotheruleabove.Key:1.b2.a3.b4.b用分词短语改写下列句子：1）Becausehewasill,hecan’tgotoworktoday.Beingill,shecan’tgotoworktoday.2)AssoonasIsawhim,Itoldhimaboutthegoodnews
5、.Reviewthecontentwiththeaidoftheteacher.Trytounderstandthispointcarefully.Pointoutthereasonsforyouranswer.Dothispartbythemselves.Findouttherelationbetweenthepresent教学二次备课教学过程设计Seeinghim,Itoldhimaboutthegoodnews.3）Havingtalkedfortwohours,shefellasleep.4）Theyl
6、ayonthegrass,lookingatthesky.5）Workinghard,youwillpasstheexam.6）Heavysmokegoesintothesky,makingussick.7)Themanreadingnewspapersismyfather.Choosetherightanswer:Key:8--12:B,B,A.B.B13--17:A,C,D,B,B18--20:B,D,C补充解释：（关于-ing作状语的情况）1.作时间状语.-ing短语作时间状语一般置于句首。如：Heari
7、ngthebadnews,theycouldn’thelpcrying.2.作原因状语-ing短语作原因状语一般置于句首。如：Beingsoangry,hecouldn’tgotosleep.3.作条件状语-ing作条件状语置于句首或句末。如：Workinghard,youwillsucceed.如果你勤奋一点，你就会成功。注意：__________,andyouwillsucceed.4.作让步状语-ing短语作让步状语，可置于句首或句末，常与evenif,though连用。5.作伴随状语eg.Theycam
8、eintotheclassroom,singingandlaughing.小结：-ing短语与when,while,though,evenif,until,if等连词连用时，相当于这些连词引导的一个从句。participleandthesubject.Dothispartindividually,thenchecktheanswers.Trytounderstandtheserules
