史上最完整动词不定式的用法（范文）.ppt

小结 要掌握动词不定式的用法，重点要识记和区分一些特殊动词。如哪些动词后跟动词不定式作宾语，哪些动词后跟动名词作宾语；哪些动词后根省to的或带to的不定式作宾补，哪些动词后跟现在分词作宾补等。 动词不定式的时态和语态关键要弄清不定式所表示的动作和句子谓语动词所表示动作的时间先后顺序以及动词不定式和句子主语、宾语或所修饰词的关系。 See you next time! * 1. 动词不定式的用法 作主语 作宾语 作定语 作表语 作宾补 作状语 动词不定式 2.动词不定式的时态和语态 3. 巩固练习 1. 动词不定式作主语 动词不定式作主语，谓语动词用第三 人称单数。 To get there by car will take a whole day. How to get enough money is still a question. 1. 动词不定式作主语 有时候为了保持句子平衡，常用it作形式主语，放到句首，而将作真实主语的动词不定式放到句末。 It will take a whole day to get there by car. It is impossible for me to finish the work in a week. 2. 动词不定式作宾语 动词不定式作宾语常用于下列动词后： want, agree, decide, manage, wish, hope, ask, like, love , choose, promise, continue, plan, learn, expect, offer, prepare, refuse, pretend, attempt, intend, threaten, seek, hesitate, long, desire, fail等等。 动词不定式作宾语应注意的问题 1.有些动词后跟动词不定式和动名词作宾语意义截然不同 try, go on, stop, mean, regret, remember, forget等 try to do sth. 尽力去做某事 try doing sth. 试一试，试试看 Try knocking at the back door if nobody hears you at the front door. Try to get there on time. forget to do sth. 忘了去做某事 forget doing sth.忘了做过某事 I forget telling her about it I forget to bring the purse with me when I left home this morning. remember to do sth.记住去做某事 remember doing sth.记得做过某事 I remember reading the story in some book. Remember to post the letter for me when you go to the post office. 动词不定式作宾语应注意的问题 2. 如果不定式作宾语而后面又有一个宾语补足语，这时要用it作形式宾语而把这个动词不定式放到补语后。 I feel it my duty to help you. I once thought it impossible for us to finish the job in such a limited time. 3.动词不定式作定语 动词不定式作定语，它与所修饰的名词或代词可能是主谓关系，也可能是动宾关系。如果是动宾关系，不定式主动表示被动。 He was the last one to leave school yesterday. We have much homework to do everyday. 4.动词不定式作表语 1．主语和表语都是不定式（其含义往往一是条件，一是结果），如： To be kind to the enemy is to be cruel to the people. To do that would be to cut the foot to fit the shoe. 2．主语是以aim, duty, hope, idea, intention, mistake, plan, proposal, job, suggestion 等为中心词的名词词组，或以 what 引导的名词性从句表示，表语用不定式说明其内容，如： My idea is to climb the mountain from the north. My suggestion is to start wo