《动词不定式》课件.ppt

Infinitive 动词不定式知识梳理动作发生在谓语动作之前 to have been done to have done 完成式与谓语动作同时发生/ to be doing 进行式动作发生在谓语动作之后 to be done to do 一般式与谓语动作的关系被动式主动式形式 Pick out the infinitives in the sentences and tell their functions. 1. He pretended to be reading attentively when I came in. 2. It is of great help for us to learn English well. 3. I didn ’ t expect Mary to invite me to her birthday party. 4. She listens to news every day so as to find out what ’ s going on. 5. The car to be bought is for his sisters. 6. The important thing in life is to have a great aim, and the determination to attain it. ( 宾语) ( 主语) ( 宾补) ( 状语) ( 定语) ( 表语) 不定式可作主、宾、表、定、状、补语。起名词,形容词和副词的作用。归纳不定式不定式在句中的作用 It is necessary to tell him the truth . To tell him the truth is necessary. 主语主语练****1. 再次见到你真高兴。 It’ s nice/good / a great pleasure to see you again. 2. 他们那样做是不明智的。 It is unwise___________________. It is + n/ adj. ( for/of sb.) to do To give up smoking is right. It is right to give up smoking. 不定式的用法 of them to do like that 不定式在句中的作用 2. I need to attend the meeting. 宾语宾语练****他们决定周末去野餐。 They have _______________________at the weekend. She wants to see the new movie. decide,/determine, learn, want, expect/ hope/wish, refuse, manage, care, pretend, offer, promise, choose, plan, agree, ask/beg, help/ afford, strive, happen, wait, threaten 他拒绝借给我自行车。 They ______________ me his bike. 不定式的用法 decided to have a ic refused to lend V+ to do (5+3P60) 决心学会想希望,拒绝设法愿假装. 学会答应选计划,同意请求帮一帮. 不定式在句中的作用 3. Have you got any questions to ask ? I have no chair to sit on .练****没什么可担心的。 There is nothing to worry about. 定语 Betty 是第一个知道真相的人. Betty was the first to know the truth. 不定式的用法修饰抽象名词如: ability, answer, reply, chance, excuse, idea, moment, reason, time , promise, attempt, way 等+to do (5+3P61) 我没机会外出观光。 I have no chance to go sightseeing. 不定式在句中的作用 4. The best way to learn English is to make friends with a native speaker. 表语表语练****我的目标是考入北大。她的梦想是当一名设计师。 My goal is________