中考英语语法专题复习动词不定式.ppt

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。 用法： 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 She asked me to help her. The teacher told him to come on time. Edison’s 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 do 常见动词有： 一感：feel 二听：listen to,hear 三让: let, make, have 四看: see, look at,watch, notice 比较： I saw her crossing the street. I saw her cross the street. I went there to see my teacher. She came back to get her English book. The box was too heavy to move. (目的) (目的) （结果） 4.用作主语 1.To be an actress 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 an actress. It is his dream to go abroad. It is easy to say, it is difficult to do. It’s +adj+of sb+to do sth. Eg:你能邀请我，你真是太善良了。 It’s very kind of you to invit me. 若形容词是描述人的性格、品质的，如 kind，good，nice，right，wrong，clever， careless，polite，foolish等，用of sb. Eg:你真聪明，解出了这道数学题。 It’s clever of you to work out the maths problem. It’s +adj+for sb+to do sth. 若形容词是描述事物的性质，用for sb.这类 形容词有difficult，easy，hard， important， dangerous，（im）possible等。 Eg:对孩子们来说，穿过繁忙的街道很危险。 It’s very dangerous for children to cross the busy street. Eg:对我们来说，完成这项工作很困难。 It’s difficult for us to finish the work. 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. 6.用作定语 Give me something to drink. They have much food to eat. （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） He asked for a room to live in. I don’t have a pen to write with. 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