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1、非谓语动词讲解NonfiniteVerbs1.谓语动词：概述：2.非谓语动词：在句子中担任谓语的动词是动词的特殊形式，在句中可以作除谓语外的所有成分1Theteacherssittingtherearefromotherschools.表语2Wesawsometeacherssittingthere.宾语补足语宾语谓语主语定语连系动词划分句子成分动词不定式的时态和语态动词不定式保留了动词的一些特征，有时态和语态的变化，它的时态和语态变化形式如下：语态时态主动语态被动语态一般时tomaketobemade进行时to
2、bemaking完成时tohavemadetohavebeenmadeWhenIgothome,mysisterhappenedtobewatchingTV.如果不定式的动作发生在谓语动词之前，要用完成式。Sheissaidtohavereadthirtynovelsthisyear.I'msorrytohavekeptyouwaitingsolong．Aftergraduation,heaskedtobesenttoworkinthecountryside.Thisnovelissaidtohavebeentr
3、anslatedintoFrench.(1)作主语不定式做主语时，可以直接放在谓语动词之前。Toseeistobelieve．Nottogetthereintimeisyourfault.注：常用it做形式主语，将todo放在后面，使句子保持平衡。句型1：It+谓语+todoIttakesusanhour___gettherebybus.句型2：It’s+n.+todoIt’sourduty__helpthepoor.句型3：Itisadj.for/ofsb.todosth.Itis+adj+forsbtodos
4、thItis+adj+ofsbtodosth(2)作宾语。常见的跟不定式作宾语的动词(组)有want,wish,hope,expect,wouldlike(love),choose,learn,plan,prepare,agree,promise,offer,refuse,ask,beg,decide,makeupone’smind,bedetermined,manage,try,can’tafford,fail,pretend等。Hepromisedtocometoday,buthehasn’tturnedup
5、yet.有形容词、分词、名词作宾补，不定式作宾语时要将不定式放于句末，用it来作形式宾语。如：Youmayfinditnecessarytofinishtheworkaheadoftime.1.We thought ___ better ___ start early. 2.Do you consider ___ better not __ go?3. I feel __ my duty __ change all that.4.Wethink__important__obeythelaw.5.Iknow__im
6、possible__finishsomuchhomeworkinaday.(3)作宾语补足语。常见的跟不定式作宾补的动词有ask,order,advise,like,want,teach,force,forbid,beg,allow,expect,cause,invite,tell,know,callon,dependon,waitfor等。Thechildrenaskedtheirparentstotakethemtothepark.。感官动词后，如see,watch,lookat,observe,notice
7、,hear,listento,feel及部分表示“使”、“让”的使役动词，如have,make,let跟不定式作宾补时要省略不定式符号to。但在被动语态中to要加上。Thoughhehadoftenmadehissistercry,todayhewasmadetocrybyhissister.help后的不定式作宾补(包括作宾语)to可有可无。（4）做表语：表示具体的动作1).其主语多为抽象名词(wish,need)Mywishistobeascientist.Themainthingistokeepourroo
8、mclean.betodo可构成将来时态,表“准备/打算/计划/需要”;Sheistoreturnnextweek.Itwasabouttoleavewhenitstartedtorain.2).注意：如果不定式是不及物的，它后面就应有必要的介词，如：Heislookingforaroomtolivein．Pleasegivemeaknifetocutwith．(5)作定
