1) 以下动词后,只能跟不定式作宾语 afford （付得起）,agree（同意）,aim(力求做到),appear（显得）,arrange（安排）,ask（要求）,attempt （试图）,care（想要）,choose（决定）,claim（声称）,condescend（屈尊）,consent（准许）,decide（决定）,demand（要求）,determine（决心）,endeavor（竭力）,expect（期待）,fail（未履行）,help（帮助）,hesitate（犹豫）,hope（希望）,learn（学会）,manage（设法）,neglect（疏忽）,offer（主动提出）,plan（计划）,prepare（准备）,pretend（假装）,proceed（接着做）,promise（答应）,prove（证明）,refuse（拒绝）,resolve（解决）,seem（觉得好像）,swear（发誓）,tend（往往会）,threaten（预示）,undertake（承诺）,volunteer（自愿做）,vow（发誓）,want（想要）,wish（希望） 举例：The driver failed to see the other car in time.司机没能及时看见另一辆车.I happen to know the answer to your question.我碰巧知道你那道问题的答案.2） 动词+疑问词+ 不定式 decide,know,consider forget,learn,remember,show,understand,see,wonder,hear,find out,explain,tell Please show us how to do that.请演示给我们如何去做.There are so many kinds of tape-recorders on sale that I can't make up my mind which to buy.有这么多的录音机,我都拿不定主意买哪一种.注意:疑问词带不定式在句中作成分时,谓语动词用单数.The question is how to put it into practice.问题是怎样把它付诸实施.3)当复合宾语中的宾语是不定式时,先用形式宾语it代替不定式,把不定式置于补语之后,即：主语＋动 词＋it＋补语＋to do句式.如：We think it quite important for us to learn a foreignlanguage well.He feels it his duty to help the poor.I find it difficult to learn English well.
