初三英语复习《动词不定式》PPT课件.ppt

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1、动词不定式动词不定式 肯定：肯定： to + V.原原 或者或者 (to)+ V.原原 否定：否定：not/ + (to) + V.原原1) He likes to read novels.2) We decided not to buy that house.4) It is interesting to fly a kite. 动词不定式的结构动词不定式的结构作主语作主语To hear your voice is so nice.To study hard is very important.It is so nice to hear your voice.It is very impor

2、tant to study hard.不定式作主语时，通常用it作形式主语，把真正的主语放在后面。注意注意:1、It is +adj. for/ of sb. to do sth.It +be + adj. +for/of sb. to do sth. for: adj.多为描述不定式行为的特征多为描述不定式行为的特征 （important/ necessary / interesting 等等.）of: adj. 多为多为 描述主语的品质特征描述主语的品质特征 （kind / nice / friendly / wise / foolish 等等.） 作主语作主语It is easy _ h

3、er to learn English well.It is clever _ you to solve the problem.offor2、It takes sb. some time to do sth. It takes me three hours to finish the homework every day. 作主语作主语我每天花去三个小时完成家庭作业。I spend three hours finishing the homework every day.1、It is necessary _us to learn to wait. (of/for)2、It was care

4、less _me to break the cup . （of/for)3、It took them 1,000 yuan _this table. (buy)4、It is my pleasure _ the box for you. (carry)to buyforofto carry练习练习1 1、动词、动词+ to do sth.常用动词有：常用动词有：want / wish / like / would like / hope / plan / try / decide / learn / need / agree / begin / start / forget / remembe

5、r / manage / seem / fail/ manage/ promise等等 1、I hope to finish it tomorrow . 2、She plans to go and teach in the country. 作宾语作宾语2 2、动词疑问词、动词疑问词+to do I dont know_ next. She cant decide_. 作宾语作宾语 2、她不能决定买哪本书。 1、我不知道接下来该做什么。what to dowhich book to buy=She cant decide which book she should buy.1、动词动词 + 宾

6、语（宾语（sb./sth.) + to do sth.1、The teacher asked her to answer the question. 2、The doctor told me to have a good rest.作宾补作宾补- -对宾语进行补充说明对宾语进行补充说明 常用动词有：ask, tell, allow, want 等动词多为感官动词、使动词。动词多为感官动词、使动词。一感：feel二听：hear, listen to三使：make, let, have三看：see, notice, watchJohns mother makes him play the pian

7、o every day. 被动：John _ play the piano every day.is made to2、动词、动词+宾语宾语+不带不带to的不定式的不定式1、主语、主语 + be + to do sth 主语多为主语多为 duty / wish / hope / idea / plan / ambition/ dream / work / job 等等 名词名词 1、My dream is to be a singer. 2、His work is to clean the classroom every day.作表语作表语我的梦想是成为一名歌手。他的工作是每天清扫教室。放在

8、被修饰词的后面放在被修饰词的后面I have a lot of work to do. I want to find something to drink.作定语作定语不定式为不及物动词时后面应有必要的不定式为不及物动词时后面应有必要的介词介词。Im looking for a hotel _.A. stay B. stay at C. to stay D. to stay atD位置位置：He hasnt got a house to live_.I have no pens to write _.in with1、原因状语、原因状语: 主语主语 + be + adj.(表情感表情感) +

9、to do sth. (happy/ glad angry / sorry / sad /afraid 等等)Im sorry to hear that.作状语作状语Im glad to see you. 2 2、目的状语、目的状语 The soldier ran into the room to save the girl ._ _ the soldier run into the room?Why didMany parents send their children abroad _.(深造学习)to further their studies3 3、结果状语、结果状语 too + adj./adv. +to do sth.adj./adv. enough to do sth.You are too young to do this job. He ran fast enough to catch the bus.