非谓语动词 课件.ppt

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1、Non-finiteVerbsNon-finiteverbsGerundParticiplePresentParticiplePastParticipleInfinitiveTenseandVoiceofInfinitiveactivevoicepassivevoice一般式todotobedone进行式tobedoing完成式tohavedonetohavebeendone完成进行式tohavebeendoing(1).Theypretendednottoseeus.(2).Hepretendedtobesl

2、eeping.(3).Shepretendedtohaveknownitbefore.(一般式表示与谓语的动作同时/发生在它之后.)(在谓语动词发生的同时,不定式的动作也正在进行)(完成式表示动作发生在谓语动作之前)(4).Theboyissaidtohavebeenplayingthepianosincehewasthreeyearsold.(完成进行式表示在谓语动词的动作之前一直进行的动作)Exercises:1.Thepolicemenaskedtheiridentities___(keep)secret

3、.2.Benistheonlypersoninhistown___(see)theUFO.3.Thevisitorsarerequested___(not,touch)theexhibits.4.Theoldtempleissaid___(destroy)inafireonehundredyearsago.tobekepttohaveseentohavebeendestroyednottotouchWhatfunctiondoestheinfinitiveactinthefollowingsentences?1

4、、The infinitive as subjectTorunisagoodhabit.(=Itisagoodhabittorun.)2、The infinitive as predicativeOurplanistobuildabridgeovertheriver.3、The infinitive as objectIwanttobuyadictionary.4、The infinitive as attributiveHehasachancetogoabroad.5、The infinitive as ad

5、verbialTofinishthework,hehadtogetupearly.6、The infinitive as objectcomplementIaskhertohelphim.(1).主语Subject不定式作主语时,往往放在句子的后部,用it作形式主语.Togetenoughsleepatnightisimportant.It____________________________________.Itisadj.(for/ofsb)todosth.Itis+apleasure/anhonor/a

6、pitytodo.Ittakessb+timetodo.Non-finiteisimportanttogetenoughsleepatnightTheusageofinfinitive1.你太好了给我一些帮助。Itisverykindofyoutogivemesomehelp.2.和你一起共进晚餐很愉快。Itisapleasuretohavedinnerwithyou.Itonlytooktwoyearstocompletetheproject.3.完成这项工程只花了二年时间。巩固练习1(2).表语Predic

7、ativeMyjobisYourtask______________(努力学习).istostudyhardNon-finitetoteachyouEnglish.1.他的愿望是在不久的将来买一座大房子。Hiswishistobuyabighouseinthenearfuture.2.我喜欢的是在海中游泳。WhatIlikeistoswiminthesea.巩固练习2Thecustomsofficerdemandedtosearchourluggage.(3)宾语Object常用动词不定式作宾语的动词有:fai

8、l,hope,refuse,agree,decide,learn,manage,pretend,etc.+todoNon-finite1.不定式作动词的宾语thinkconsiderfind形式宾语4.我希望收到你的信。Ihopetohearfromyou.5.我决定不留下来。Idecidednottostay.6.学生们认为玩电脑游戏很有趣。Studentsthought______