heinfinitive动词不定式.ppt

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1、The infinitive动词不定式动词不定式 to do not to do作主语作主语 to do to do 作主语，常放句尾，用作主语，常放句尾，用it it作形式主语作形式主语 1.1.It be adj.n.to do sth.Its good to see you.To see is to believe.2.2.It takes sb.some time to do sth.Its difficult to learn maths well.Exercise1跳舞非常有趣。跳舞非常有趣。2种些植物是非常有必要的。种些植物是非常有必要的。3说英语对我来说并不容易。说英语对我来说

2、并不容易。4听到你的声音真高兴。听到你的声音真高兴。To dance is a lot of fun.It is a lot of fun to dance.To grow plants is very important.To hear your voice is so nice.To speak English is not easy for me.It is so nice to hear your voice.作表语作表语To see is to believe.他的愿望是成为一名医生。他的愿望是成为一名医生。His wish is to be a doctor.Exercise1我的

3、工作是每天打扫这间屋子。我的工作是每天打扫这间屋子。2最上策的计划就是马上离开这儿。最上策的计划就是马上离开这儿。3 我的梦想就是成为一名科学家。我的梦想就是成为一名科学家。My work is to clean the room every day.The best plan is to leave at once.My dream is to be a scientist.作宾语作宾语 (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 lear

4、n to do agree to do plan to do decide to do refuse to dobegin to do start to do try to doforget to do remember to do like to dostop to dogo on to doExercise1他想借用我的录音机。他想借用我的录音机。2他们开始读和写。他们开始读和写。3李琳喜欢玩什么？她喜欢踢足球。李琳喜欢玩什么？她喜欢踢足球。4你长大了想做什么？你长大了想做什么？He wants to borrow my radio.They began to read and write

5、.What sports does Li Lin like to play?She likes to play soccer.What do you want to be when you grow up?作宾语补足语作宾语补足语：(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 dowish sb to do get sb to doorder sb to do find sb to

6、 be like sb to do would like sb to dohelp sb to do1他要求我再大声点儿。他要求我再大声点儿。2Lucy告诉他不要哭。告诉他不要哭。3吉姆告诉李明由衷地祝福每个人。吉姆告诉李明由衷地祝福每个人。4他让我再做一次。他让我再做一次。She asked me to speak louder.Lucy told him not to cry.Jim told Li Ming to give his best wishes to everybody.He let me do it again.作宾语补足语不带作宾语补足语不带to 的情况：的情况：Let m

7、e do it.I saw him cross the street.常见动词有：常见动词有：使役动词使役动词:let,make,have 感官动词感官动词:see,watch,hear,feel,listen to比较：比较：I heard her singing in the next room.I heard her sing in the next room.作状语作状语(adverbial)：He came to show me his new CD player.I went there to see my teacher.She came back to get her Engl

8、ish book.The boy was too frightened to move.(目的目的)(目的目的)(目的目的)(结果结果)I am glad to see you.（原因）（原因）Im sorry to trouble you.（原因）（原因）作定语作定语Have you get anything to say?Hes looking for a room to live in?She has no clothes to wear?用作定语用作定语Give me something to drink.I have two books to read.They have much

9、food to eat.（这时不定式与被修饰词有动宾关系。（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）若是不及物动词，介词不能省略）He asked for a room to live in.I dont have a pen to write with.The ice is hard to skate on.He bought a toy to play with.1 我有许多书要看。我有许多书要看。2 她有几个问题要问。她有几个问题要问。3 他有一台电视要修。他有一台电视要修。4.我没什么可担心的。我没什么可担心的。I have many books to read.

10、She has a few questions to ask.He has a TV set to repair.I have nothing to worry about.5他是一个值得信赖的人。他是一个值得信赖的人。66 爱迪生是第一个发明电灯的人。爱迪生是第一个发明电灯的人。77 他那生病母亲最多可活三个月。他那生病母亲最多可活三个月。He is a man to believe in.Edison was the first man to invent the lights.His sick mother has three months to live at most.不定式与疑问词

11、连用不定式与疑问词连用常用动词有常用动词有:ask know learn teach tell understand等。等。7.疑问词疑问词who,what,which,where,when,how加加to do可构成不定式短语，在句中可用作主语、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。宾语、宾语补足语、表语等。When to start has not been decided.I dont know what to do.He can tell you where to get the book.The question is who(m)to ask.构成形式构成形式作作用用例例 句句 who what which how 等等to do where when主主语语When to start has not been decided.表表语语The question is where to go.宾宾语语I dont know how to do.宾宾补补Nobody told us what to do.