英语人教版八年级下册动词不定式.ppt

1、,Grammar,Infinitives 动词不定式,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.,Infinitives,动词不定式,plan to do decide to do refuse to do need to do learn to do agree to do begin to do start to do try to do forget to do remember to

2、do like to do stop to do go on to do,不定式作宾语：,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 do get sb to do order sb to do find sb to be like sb to do would like sb to do help sb to

3、do,作宾语补足语不带to 的情况：,比较： I heard her singing in the next room. I heard her sing in the next room.,常见动词有： 使役动词: let, make, have 感官动词: see, watch, hear, feel,Let me do it. I saw him cross the street.,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

4、came back to get her English book. (目的) The boy was too frightened to move. (结果),4.用作主语,1. 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.,(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 e

5、asy 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. I have much homework to do. He asked for a room to live in. I dont have a pen to write with.,6. 用作定语

6、(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.,找出句子中的不定式, 并说出作用：,1. It takes you ten minutes to get there. 2. I hope to see him soon. 3. His wish is to become an artist. 4. People eat to live, not live to eat.,状语,表语,宾语,主语,Exercises,5. I have a lot to