文档介绍：专题三非谓语动词◆(1)不定式作表语与“be+todosth.”的异同。不定式作表语说明主语的内容或性质。MyjobistoteachEnglish.(说明内容)be+todosth.(表示按计划要做的事)Heistogoabroad.(2)后接不定式作宾语的词语。下列词语常接不定式作宾语:afford,promise,refuse,expect,hope,learn,offer,wish,want,fail,plan,agree,forget,like,prefer,decide,manage,try,arrange,determine,desire等。下列词语后可接“疑问词+不定式”:teach,decide,wonder,show,learn,forget,ask,findout,advise,discuss等。(3)如何理解和使用不定式作宾补。①动词(短语)see,watch,notice,hear,listento,observe,feel,taste,smell,make,let,have等的宾补用动词原形,变被动时要加to,此时的不定式就是主语补足语。②常用不定式作宾补的几种情况:主语+ask/require/tell/order/force/get/want/like++think/judge/suppose/believe/consider/imagine/feel+sb.+tobe/tohavedone主语+callon/upon/dependon/waitfor/askfor+sb.+todosth.(4)不定式作定语的特殊用法。①下列词语后常接不定式作定语:chance,wish,right,courage,need,promise,time,opportunity,way,thefirst,thesecond,thelast,theonly等。②不定式作定语和所修饰的名词在逻辑上有主谓关系。olookafterher.③不定式与被修饰的名词在逻辑上有动宾关系。Sheisnowlookingforaroomtolivein.(5)不定式作状语的用法。不定式作状语,在句中主要表示目的、结果、原因等。onlytodo表示出人意料的结果。(not)to,soas(not)to用来引导目的状语;enough...to,so...astodo,such+名词...astodo作结果状语。’mnotsuchafoolastobelievethat.(6)不定式的完成时的特殊用法。①表示不定式中谓语动词发生的动作先于主句的谓语动词发生的动作。,appear,besaid,besupposed,bebelieved,bethought,beknown,bereported等动词常用于上面句型。此外,glad、happy、satisfied、sorry、surprised、disappointed后也