,动词不定式动词不定式的基本形式是“to+动词原形“, 有时可以不带to.动词不定式没有人称和数的变化, 在句子中不能作谓语。在句中可以作主语、表语、宾语、宾语补足语、定语和状语。,构成：to + do(动词原形),用法： 1. 用作宾语 (v. + to do )I want to buy a computer.She hopes to find a better job.I wish to go with you.,need to do learn to do agree to do plan to do decide to do refuse to do begin to do start to do try to do forget to do remember to do like to do Stop to do go on to do,2. 用作宾语补足语：(v. + sb. + to do ),She asked me to help her. The teacher told him to come on time. Edisons mother taught him to read and write.want sb. to do wish sb. to doget sb. to do order sb. to dofind sb. to be like sb. to dowould like sb. to do help sb. to do,作宾语补足语不带to 的情况：,Let me do it. I saw him cross the street. 常见动词有： 使役动词: let, make, have 感官动词: see, watch, hear, feel, listen to 比较： I heard her singing in the next room. I heard her sing in the next room.,3. 用作状语(adverbial)：,He came to show me his new CD player. (目的) I went there to see my teacher. (目的) She came back to get her English book. (目的) The boy was too frightened to move. (结果),4.用作主语,To be here at Christmas time is my dream.2. To go abroad is his dream. 3. To say is easy, to do is difficult.,(这时可将其用形式主语it来替换),It is my dream to be here at Christmas time. It is his dream to go abroad. It is easy to say, it is difficult to do.,5. 用作表语,His work is to feed the animals. Her job is to look after the patients. My wish is to be a scientist.,Give me something to drink. I have two books to read. They have much food to eat. He asked for a room to live in. I dont have a pen to write with. The ice is hard enough to skate on. He bought a toy to play with.,6. 用作定语(这时不定式与被修饰词有动宾关系。若是不及物动词, 介词不能省略),7. 疑问词who, what, which, where, when, how 加to do可构成不定式短语, 在句中可用作主语、宾语、宾语补足语、表语等。,When to start has not been decided. (主语) I dont know what to do. (宾语) He can tell you where to get the book. (宾语补足语) The question is who(m) to ask. (表语),比较(Compare),I dont know what to do. I dont know how to do it. I dont know what to do about it.,非谓语动词 (动词不定式和动词-ing形式) 中考考查重点讲解,e.g. 1. He has promised to behave better later.2. The boy decided not to become a sailor.3. I hope to go to college.,promise, decide, hope, agree, choose, fail, wish, learn,+ to do sth.,I.,4. He agreed to help us. 5. She chose to study chemistry. 6. He failed to persuade him. 7. Do you wish to eat alone?,enjoy, finish, keep, mind suggest, cant help,e.g. 1. 他对听音乐总是兴致勃勃。 He always enjoys listening to music.2. 我打扫完房间了 I have finished cleaning the room.3. 你不能像这样老变主意。 You shouldnt keep changing your ideas like this.,+ doing sth.,II.,4. Would you mind _ with you? 5. He suggested _ for a walk. 6. I couldnt help _.,my coming,going out,crying,love, hate, forget, remember stop, like, try, mean,1. Mary loves _. 2. I hate to _. 3. 她忘记寄这封信了。She forgot _.,reading / to read,trouble / troubling him,to post the letter,III.,4. 我永远忘不了初次寄信的情景。Ill never forget _ a letter for the first time. 5. I remember _ her once.= I remember that I _ ( see )her once. 6. Remember _ me.= I hope youll phone me.,posting,seeing,saw,to phone,他停下来跟我说话。He stopped _. 他停止讲话 He stopped _. 他喜欢游泳。He likes _. 我不想打扰你。I dont like _. 她试着写作文。She tried _.,to talk with me,talking,swimming,to disturb you,writing a composition,她设法打电话找你。She tried _ 我本来打算今天给你这本书的, 可是我忘了。 I meant _ today, but I forgot. 这意味着浪费时间。This means _ much time.,to get you on the phone,to give you this book,wasting,IV.,ask, tell, get, wish, want, teach, know, understand,1. I asked him _ here early. 2. Get him _ a doctor. 劝他去找医生看看。 3. Ive known him _ very fast. 我听说他跑得比较快。 4. What did you understand him _?你认为他说的是什么意思呢？,+ sb. to do sth.,to come,to see,to run,to say,make, have, let, see, watch, hear, feel , notice,+ sb. do sth.,e.g. I cant make the horse go. 我无法使这匹马走动。I wont have (允许，容许) you say such things. 我可不许你说这样的话。My mother wouldnt let me go to the film. 我妈妈不会让我去看电影的。Did you notice him leave the house? 你看到他离开房间了吗？I often hear him sing the song.,V.,sb. + be done + to do sth.,e.g He is often heard _ the song.They were made _ day and night.,to sing,to work,.,be +,happy, glad, pleased angry, sorry, lucky slow, quick, careful ready, nice,+ to do sth.,e.g I am sorry to hear that.He is wrong to say so.I was very lucky to get a copy so cheap. “我这么便宜地买到一本,真是幸运极了。,* quick to learn sth. * 学某事学得快 Be careful not to fall off the ladder.当心别从梯子上掉下来。 He is ready to help . 愿意帮忙,.,e.g. I found it very important to learn English well. = I found that _ _ very important to learn English well. I feel it my duty to do so.= I feel that _ _ my duty to do so.,think, make, find, feel,