动词ing形式学案.ppt

动词-ing形式学习目标：1.理解V-ing形式的各种句法功能 2.掌握V-ing形式的否定形式(not/neverdoing)3.掌握V-ing形式的时态和语态4.理解V-ing形式的逻辑主语5.牢记一些固定的-ing表达结构，如：generallyspeaking，judgingfrom，considering...【观察一】请观察下列句子，注意动词-ing形式在句子中的作用。1)Smokingisharmfultohealth.2)Theartistcouldfinishdrawingahorseinfiveminutes.3)Thestorysoundsquitemoving.4)Myjobisteaching.5)Thisisasleepingtrain.6)ThemanspeakingatthemeetingisaprofessorfromBeijing.7)Beingill,hecouldn’tgotoschool.8)Iheardsomeoneknockingatthedoor.9）Hewascaughtcheatingintheexam.【小结一】 动词-ing形式分为__________分词和__________。动名词在句中充当________语(如例1)、________语(如例2)、________语(如例4)、________(如例5)。现在分词在句中充当________语(如例3)、________语(如例6)、________语(如例7)、________语(如例8)、__________语（如例9）应用：读下面句子并指出划线部分的ing形式充当什么成分。1.Iwas16whenIbeganworkinginJune1902atthewhalingstation.（____语）2.Iheardanoisecomingformthebay.(________语)3.IhadalreadyheardthatGeorgedidn’tlikebeingkeptwaiting.（_____语）4.Georgestarted①beatingthewaterwithhisoarandtherewasTom,②circlingbacktotheboat,leadingustothehuntagain.（①________语②________语）5.Icouldseeawhalebeingattackedbyapackofaboutsixotherkillers.(________语)6.Andthoseothersarestoppingitdivingorfleeing.(________语)7.Geogetoldme,pointingtowardsthehunt.(________语)8.Beingbadlywounded,thewhalesoondied.(________语)9.Themenstartedturningtheboataroundtogohome.(________语)10.“Manoverboard!Turntheboataround!”urgedGeorge,shoutingloudly.(_______语)11.Fishingnetsintheseahavebecomeaseriousproblem.(________语)12.FromJames’sface,Icouldseehewasterrifiedofbeingabandonedbyus.(______语)【观察二】请观察下列句子，注意动词-ing形式的肯定形式和否定形式。1.Notknowinghowtodoit,Iturnedtohimforadvice.2.Nothavingreceivedhisanswer,Iwrotehimagain.3.Neverhavingbeentherebefore,Iknownothingabouttheplace.【小结二】动词-ing形式的否定式是__________________________.【观察三】请观察下列句子，注意动词-ing形式的动作什么时候发生（时态）和-ing形式的逻辑主语是谁（语态）。1)Theysawtheboyplayingneartheriver.2)Hearingthenews,hejumpedwithjoy.3)Havingbeenaworkermanyyears,heknewhowtorepairthismachine.4)Nothavingreceivedhisanswer,Iwrotetohimagain.5)Thatbuildingbeingbuiltisourlibrary.6)Havingbeenshownaroundthelabs,wewe