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1、动词不定式---ByLiXuelianTheInfinitive眼见为实.Toseeistobelieve.主语表语to+动词原形Pleasepayattentionto:不定式由“to+动词原形”构成,其否定形式是“not/neverto+动词原形”。不定式在句中可以作主语、宾语、状语、表语、定语和宾语补足语,但不能单独作谓语。一、不定式的构成及作用:1.TheSubject(作主语)3.TheObject(作宾语)4.TheObjectComplement(作宾语补足语)2.ThePredicative(作表语)二、
2、Thekeypoints:三、Thekeypoints:Toseeistobelieve.TolearnEnglishwellisimportant.1.作主语:单个不定式作主语时,谓语动词用单数。Itis+adj./n.(for/ofsb)+todosth.(当adj.表示人的性格特征时用ofsb.)is若不定式太长,往往用it作形式主语,不定式置后.isItisimportanttolearnEnglishwellEg.①Itishardtopleaseall.众口难调。Itisnotaneasythingforus
3、tolearnEnglishwell.②学好英语对于我们不是一件简单的事情。③帮助我你真是太好了。It’sverykindofyoutohelpme.Let'stranslate:2.作表语:Yourtaskistocleantheclassroom.E.g.:Tobekindtotheenemyistobecrueltothepeople.Mywishistogotocollege.②我的工作是帮助病人。①你的任务是打扫教室。Myjobistohelpthepatient.Translation:放在系动词后面Iwan
4、ttogohome.Theworkersdemandedtogetbetterpay.Theimportantpoint:3.作宾语:常用动词不定式作宾语的动词有:ask,want,hope,refuse,learn,wish,choose(选定、决定),decide,agree,manage(设法),pretend(假装),plan,hesitate(犹豫)等.①他们设法及时到达了那儿。Theymanagedtogetthereintime.④他们决定去钓鱼。Theydecidedtogofishing.Let’spr
5、actise:Don’thesitatetoanswermyquestion.③不要犹豫回答我的问题。②我希望参观长城。Iwish/hopetovisittheGreatWall.主语+think/consider/find/feel/make/believe+it+adj./n.+(forsb.)+todoIthinkitnecessaryforustohaveagoodrestafterthelongwork.Pleasepayattentionto:it作形式宾语:(it做形式宾语,不定式做真正的宾语②Theint
6、ernetmakesiteasierforustokeepintouchwitheachother.①我们认为努力学习是我们的职责。Wefeltitourdutytostudyhard.Let’spractise:③我们认为保持生态平衡是有必要的。Wethinkitimportanttokeepthebalanceofnature.网络使得我们互相联系容易一些。4.作宾语补足语:常见的用动词不定式作宾语补足语的动词有:ask,tell,want,force,get,allow,wish,prefer(宁愿),expect
7、,encourage(鼓励),advise(建议),persuade(说服),order,permit(允许),request(要求)etc.Thedifficultpoint:Iexpectyoutogivemesomehelp.Iprefertogooutforawalk.Theteachertoldmetoreadthetext.Let’spractise:①老师叫我读课文。②我希望你能给我一些帮助。③我宁愿出去散步。④他说服我参加这个团体。Hepersuadedmetojointhissociety.五看watc
8、hseelookatobservenotice三使letmakehave二听listentohear一感觉:feelHisfatherdoesn’tlethimsmoke.Hisneighbourobservedastrangergointohishouse.Pleasepayattentionto:e.g.Imad