高中英语人教版选修7课件 Unit3 period 3 grammar

高中人教版英语课件GrammarTheuseofv-ingUnit3Underthesea学生能够了解并掌握v-ing形式的主动式和被动式。学生能够了解并掌握V-ing形式的完成式，及其对应的被动式。

本节课是关于动词V-ing形式的语法课，设计意图是通过当堂讲解和练习来让学生掌握该语法的考点。

首先，通过让学生填表格导入新课，先让学生从形式上认识V-ing形式的一般式和完成式及其对应的被动形式。然后，逐个讲解v-ing形式作主语，宾语，表语，定语等，并且讲练结合，当堂巩固。最后，课堂检测，既能让学生自我检测，又达到了整体上巩固语法的目的。语态时态主动形式

被动形式一般式完成式(not)doing(not)beingdone(not)havingdone(not)havingbeendoneV-ing可作主语、宾语、表语、定语、状语和宾语补足语，但不能单独作谓语。V-ing形式表示的动作与主要动词同时发生或发生在主要动词之后，用其一般式;V-ing形式表示的动作在主要动词之前发生，用其完成时，在具体应用中也常以一般式代替完成式。

1.作主语

★

Swimming

isgoodforhealth.

★

______(raise)yourhattoaladyisgoodmanners.

★

(kill)bysharksintheseaisacommonthing.RaisingBeingkilled

2.作表语

★

Teachingislearning.

教学相长

★

Myhobbyis_______(make)modelplanes.

★

Whatworriedthechildmostwas

(not,allow)tovisithismotherinthehospital

makingnotbeingallowed1).动名词和不定式都可以作主语，动名词作主语表示一般或抽象的多次性行为，不定式作主语往往表示具体的或一次性的动作。如：Playingwithfireisdangerous.（泛指玩火）Toplaywithfirewillbedangerous.（指一具体动作）2)V-ing形式和不定式都要有对称性;当主语是不定式时，表语也用不定式；反之，当主语是V-ing形式时，表语也用V-ing形式。

Toseeistobelieve.=Seeingisbelieving.

talking

tolearn

e.g.:Itisnousecryingoverspiltmilk.覆水难收。Itis+adj.+(forsb.)todosth.It

作形式主语,只用V-ing,不用不定式。3).It’snouse(good)doingsth.It’sawasteoftimedoingsth.Itisawasteoftime___________(talk)tohim.Itisimportantforme_______________(learn)English.3.作宾语V-ing形式既可作动词的宾语,也可作介词的宾语。★Wewouldappreciatehearingfromyou．

我们会珍惜你的来信。★Thebirdescaped______________(catch).★Ifeellike__________(join)thearmy.★Hewasafraidof____________(abandon)byus.beingcaughtjoining

being

abandoned4.作定语★Thegirlstandingthereismysister.★Thisisapieceof__________(surprise)news.★Theproblem____________(discuss)nowisveryimportant.★

Thefarmers____________(work)inthefieldsaretired.surprising

beingdiscussedworking5.作状语★Hearingthegoodnews,hejumpedwithjoy.★Hesatatthetable,_______(read)ChinaDaily.★______________(ask)toanswerthequestion,shecouldn’trefuse.★__________(work)hard,youwillsucceed.readingBeingaskedWorking6.作宾语补足语★

Isawpeoplecomingandgoinginthestreet.

★Iheardher___________(sing)asonginherroom.★You’llfindthetopic_____________(discuss)everywherenow.singingbeing

discussed1)Hehurriedhome,lookingbehindfromtimetotime.2)Thebuildingbeingrepairedisourdormitory.

---V-ing一般时和一般时的被动形式1)Havinglitacandle,shewentout.2)Havingbeenaskedtostay,Icouldn’tleave.3)Havingheardthis,ourteacherexpressedhersatisfaction.---V-ing的完成时和完成时的被动形式_________(turn)totheright,youwillfindtheplaceyouwant.2.___________(ask)toputonperformance,sherefused.3.Hedisliked

(interrupt)inhisexperiment.4.________(learn)newwordsisuseful.TurningBeingaskedLearningbeinginterrupted5._______________(finish)hiswork,Henrywenthome.6.Iapologizefor________________(not,wait)foryou.7._________________(not,receive)anans