动词不定式是一种非谓语动词形式， 它能起名词、形容词和副词的作用，在 句子中作主语、宾语、定语、表语、宾 语补足语和状语。 其形式如下：（主动形式） 一般式 （not） to do 完成式 （not） to have done 进行式 （not） to be doing,概 述,1. It is good to help others. 2. It is my ambition to make sure that the disabled people in our neighborhood have access to all public buildings. 3. My ambition is to work in the computer industry when I grow up.,Identify its function.,(主语),(主语),(表语),想一想,4. I dont have time to sit around feeling sorry for myself. 5. I am the only student in my class to have a pet snake. 6. A big company has decided to buy it from me. 7. My fellow students have begun to accept me for who I am.,(定语),(定语),(宾语),(宾语),8. I have had to work hard to live a normal life. 9. Some days I am too tired to get out of bed. 10. We must call on local government to give financial assistance to disabled people.,(状语),(状语),(宾补),几点注意： 1.不定式作宾补 allow, cause, force, permit, get, forbid, advise, persuade sb/sth. to do sth. 2. feel, hear, listen to, let, have, make, see, look at, watch, observe sth/sb. do 当改成被动时to 加回去 例： I heard my neighbour lock the door. My neighbour was heard to lock the door. I saw a plane fly over. A plane was seen to fly over.,3. 下列结构主动表被动 The door is easy/hard_. A. to open B. be opened It is a difficult question _.(answer),4.几组词的区分 1)like doing 习惯性，一般性的动作 like to do 具体的一次性的 1)我想和你一块儿去。 I like to go with you. 2)我喜欢阅读。 I like reading. 3)他答应过要帮助她。 He promised to help her. 4)我们喜欢看VCD。 We like watching VCD.,2) remember, forget, regret +doing: 做过 +to do: 要做 I remember meeting him in the street. 我记得在街上见过他。 I remember to write a letter to my parents. 我想起来要给我父母亲写信。,3) “stop + doing”表示停止做某事, “stop + to do”表示停下来做某事。 请不要抽烟 。 Stop smoking, please. 咱们停下来休息一下吧。 Lets stop to have a rest.,4) mean to do 打算做某事 mean doing 意味着 I meant to catch up with the early bus. This means wasting a lot of money.,Practice I,1. She said she_ her uncle very much and hoped _him. A. missed, to hear from B. missed, to hear C. misses, hearing from D. misses, hearing,A,2. _a living, she had to work from morning till night. A. To make B. made C. Making D. To have made 3. Mrs Brown regretted_ his son. A. beated B. beating C. beat D. beaten,A,B,4. I often hear him _about the great writer. A. to talk B. talk C. speaking D. to tell 5. Missing the last bus means_ home. A. to walk B. walking C. walked D. walk,B,B,6. Paul doesnt have to be made_ . He always works hard. A. study B. to study C. studied D. studying 7. It was unbelievable that the fans waited outside the gym for three hours just _ a look at the sports starts. A. had B. having C. to have D. have,B,C,8. The boy wanted to ride his bicycle in the street, but his mother told him _. A. not to B. not to do C. not do it D. do not 9. -I didnt hear you come in last night. -Thats good. We tried _ noisy. A. not to B. to be not C. to be D. not to be,A,D,10. -I hear that you and Francis will spend your vacation in Nepal next spring. -Yes, we are planning _. A. to B. to be C. it D. to do it,A,10. -I hear that you and Francis will spend your vacation in Nepal next spring. -Yes, we are planning _. A. to B. to be C. it D. to do it,A,1. _ is to lengthen life. (节约时间就是延长生命。) 2. She is easy _. (她很好相处。) 3. When I called him, he happened _. (我给他打电话时, 他正在洗澡。),III. 根据汉语提示, 用不定式完成下列句子。,To save time,to get along with,to be taking a bath,4. The book is said _ _. (据说这本书已经被翻译成好几种语言。) 5. The experience makes us realize that much of the world remains _. (这次经历使我们意识到世界上有很多东西仍有待探索。) 6. The teacher asked us _. (老师叫我们不要如此吵闹。),to have been translated into several languages,to be explored,not to be so noisy,7. The news reporter hurried to the airport, _ _. (这位新闻记者急匆匆赶到机场，结果被告知电影明星已经走了。) 8. I dont think it possible _ _. (我认为一次记住100个英语单词是不可能的。),only to be told the film star had left,to remember 100 English words at a time,9. Students are not allowed _. (学生不允许吸烟和饮酒。) 10. _, call (920) 746-3789. (若要了解更多信息，请拨打电话(920) 746-3789。),To find out more information,to smoke and drink,