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1、不定式主动形式被动形式一般式(not)tomake(not)tobemadeHeseemstoknowthis.完成式(not)tohavemade(not)tohavebeenmadeI'msorrytohavegivenyousomuchtrouble.进行时(not)tobemakingHeseemstobeeatingsomething.完成进行式(not)tohavebeenmakingSheisknowntohavebeenwreakingontheproblemformanyyears.发泄怒火,报仇therebe+不定式believe,expect,int
2、end,like,love,mean,prefer,want,wish,understandWedidn'texpecttheretobesomanypeoplethere.我们没料到会有那么多人在哪里。动词+疑问词+todecide,know,considerforget,learn,remember,show,understand,see,wonder,hear,findout,explain,tellPleaseshowushowtodothat.Therearesomanykindsoftape-recordersonsalethatIcan'tmakeupmym
3、indwhichtobuy.加不定式better;thefirst,thenext,thelast,thebest,toomuch,toolittle,notenoughIt'sforsb.和It'sofsb.1)forsb.常用于表示事物的特征特点,表示客观形式形容词,如easy,hard,difficult,interesting,impossible等:It'sveryhardforhimtostudytwolanguages.对他来说学两门外语是很难的。2)ofsb的句型一般用表示人物的性格,品德,表示主观感情或态度的形容词,如good,kind,nice,cle
4、ver,foolish,right,silly。It'sveryniceofyoutohelpme.你来帮助我,你真是太好了。.不定式短语作定语和被修饰词之间表示以下关系:(1)表示将来的动作。ThenexttraintoarriveisfromWashington.(2)与被修饰词之间有动宾关系,如是不及物动词,则需加介词。Wouldyoupleasegivemesomepapertowritevion?(3)与被修饰词之间有动宾关系,同时与句中其它词之间又有逻辑上的主谓关系时,尽管有被动含义,却仍用主动语态;Doyouhaveanthyingtodo?如只有动宾关系,
5、而无逻辑上的主谓关系,则需用被动语态。Isthereanythingtobedone?(4)不定式作定语时,一般可转换为定语从句,toarrive=thatwillarrive。省略不定式to表示个人意愿或倾向的wouldrather,hadbetter,might(just)aswell:ratherthan置于句首时。Ratherthanrideonacrowdedbus,healwayspreferstorideabike.由and,or和than连接的两个不定式,第二个to可以省去通常在discover,imagine,suppose,think,understa
6、nd等词后,可以省去tobe:Heissupposed(tobe)nice. 他应该是个好人。当两个或多个不定时短语由连词and,but或or连接时,后一个或几个不定式符号to常省略。但若表示对比、对照关系时,则不能省略。HewantstomovetoFranceandmarrythegirl.Thepurposeofnewtechnologiesistomakelifeeasier,nottomakeitmoredifficult.不定式做表语时,一般要带to,但若主语部分中含有do的各种形式时,符号to可省去。We'vemissedthelastbus.Allweco
7、ulddonowiswalkhome.当too前面有only,all,but时,意思是:非常…等于very。而不属于too….to句型I'monlytoopleasedtobeabletohelpyou.我非常高兴能帮助你。Hewasbuttooeagertogethome.他非常想回家。1.Thiscompanywasthefirst____portableradiosaswellascassettetaperecordersintheworld.A.producingB.toproduceC.havingproducedD