初中动词不定式ppt课件.ppt
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1、篮球比赛是根据运动队在规定的比赛时间里得分多少来决定胜负的,因此,篮球比赛的计时计分系统是一种得分类型的系统篮球比赛是根据运动队在规定的比赛时间里得分多少来决定胜负的,因此,篮球比赛的计时计分系统是一种得分类型的系统 即即即即to do to do to do to do,其否定形式是,其否定形式是,其否定形式是,其否定形式是not to donot to donot to donot to do;不定式;不定式;不定式;不定式没有人称和数没有人称和数没有人称和数没有人称和数的变化。的变化。的变化。的变化。动词不定式动词不定式:一一.不定式的句法功能不定式的句法功能1.Its normal t
2、o cry when we feel sad.(做主语做主语)不定式做主语时不定式做主语时,常用代词常用代词it 来代替不定式结构来代替不定式结构,这时这时 it 被称为形式主语被称为形式主语,而作为句子真正主语的而作为句子真正主语的不定式则被后置不定式则被后置.往往放往往放v.和和adj.之后之后.e.g.To learn English well is not easy.=Its not easy to learn English well.Its+adj.(+for sb.)+to do sth.篮球比赛是根据运动队在规定的比赛时间里得分多少来决定胜负的,因此,篮球比赛的计时计分系统是一
3、种得分类型的系统1.不定式做主语:不定式做主语:常用句型:常用句型:Its+adj.(+for sb.)+to do sth.(对某人来说)做某事是怎样的(对某人来说)做某事是怎样的形式主语形式主语真正主语真正主语=To work out the problem is difficult for me.Its difficult for me to work out the problem.=Working out the problem is difficult for me.e.g.对我来说解答出这道题是很难的。对我来说解答出这道题是很难的。篮球比赛是根据运动队在规定的比赛时间里得分多少来
4、决定胜负的,因此,篮球比赛的计时计分系统是一种得分类型的系统2.The best way to learn English is to read loudly.(做表语做表语)可与可与be动词构成系表结构动词构成系表结构.Her wish is to study in Ji Yan Middle school.My job is to clean the streets.在形式上,位于在形式上,位于系动词系动词后的就是表语。从含后的就是表语。从含义上讲,表语是回答主语义上讲,表语是回答主语“是什么是什么”的语法的语法成分。成分。篮球比赛是根据运动队在规定的比赛时间里得分多少来决定胜负的,因此,
5、篮球比赛的计时计分系统是一种得分类型的系统2.不定式做表语:不定式做表语:常放在常放在be动词动词后,表明主语后,表明主语“是什么是什么”。e.g.Our plan is to go there by plane.我们的计划是乘飞机去那儿。我们的计划是乘飞机去那儿。(主语和表语指代的是同一事物)(主语和表语指代的是同一事物)1.My job is _computers.A.to selling B.sell C.to sellB.2.Her hobby is _ (play)football.to play=Her hobby is playing football.3.I want to b
6、uy a ticket.(做宾语做宾语)接动词不定式作宾语常见的几个动词是接动词不定式作宾语常见的几个动词是want,plan,hope,decide,begin,start.need,wait,would like.hate.refuse.wish.prefer,learn.try.like.agree,fail.be able to do,do/try ones best to do 等等.e.g.They decided to try again.The little boy wanted to get to school before 8 oclock.3.不定式做宾语:即动词不定式做
7、宾语:即动词+to do的结构中,这里的的结构中,这里的to do就是做宾语就是做宾语篮球比赛是根据运动队在规定的比赛时间里得分多少来决定胜负的,因此,篮球比赛的计时计分系统是一种得分类型的系统1.My friends want _(book)some tickets to the movie for us.2.My parents decide _(give)me more money.3.He plans _(go)to Beijing for a holiday.4.The boy hopes _(pass)the English exam.5.My little son is able
8、 _(read)some words.6.Ill try my best _(help)you.7.She would like _(become)beautiful.4.Kangkang helped us to learn English.动词不定式作宾语补足语动词不定式作宾语补足语,常见的动词有常见的动词有 tell,ask,get,want,would like,wish,teach,help,order,invite,get,allow,send,lead 等等.常构成下面的句式:常构成下面的句式:V+sb.+to do 其否定形式为:其否定形式为:V+sb.not+to do(做宾
9、语补足语)She told me not to give the book to him.I asked Paul to carry the box.4.不定式做宾语补足语:即动词不定式做宾语补足语:即动词+sb.+to do的结构的结构中,这里的中,这里的to do就是做宾语补足语就是做宾语补足语篮球比赛是根据运动队在规定的比赛时间里得分多少来决定胜负的,因此,篮球比赛的计时计分系统是一种得分类型的系统1.Dont ask Jim _(go)swimming with us,because his mother wont allow him _(do)so.2.Does you mother
10、 wish you _a doctor?A.being B.to be C.become3.My teacher always tells me _(study)hard.4.I dont want you _(help)me.5.Shed like me _(join)them.6.I wish you _(have)a good time.My best friends teach me _(swim).8.Her friend often invites her _(have)dinner.9.My mother always gets my father _(do)housework.
11、10.I order you _(wash)your hands篮球比赛是根据运动队在规定的比赛时间里得分多少来决定胜负的,因此,篮球比赛的计时计分系统是一种得分类型的系统 但使役动词(但使役动词(let.make.have)和感官动词和感官动词(see.watch.look at.hear.feel)的宾补常省略的宾补常省略to即:即:V.+sb.+do He often makes his sister wash his clothes.I see the little girl run into the school.篮球比赛是根据运动队在规定的比赛时间里得分多少来决定胜负的,因此,篮球
12、比赛的计时计分系统是一种得分类型的系统1.When they went into the park,they saw someone _ Chinese Kongfu.A.plays B.played C.to play2.Mr.Brown made his students _ the new words again.A.copying B.copy C.to copy3.Please let the students_ down.A.sitting B.to sit C.sit4.Is Wei Fang good at singing?-Yes,she is.We often hear h
13、er _ in her room.A.to sing B.sing C.sings 5.I get up early to catch the bus.(做目的状做目的状语语)不定式作状语一般表示目的,原因或结果不定式作状语一般表示目的,原因或结果I am sorry to hear that.Lets stop to have a rest.The orange are too high to reach.She didnt work hard enough to pass the exam.(表原因表原因)(表目的表目的)(表结果表结果)5.不定式做状语:常用来表示目的,原因或结果。不定式
14、做状语:常用来表示目的,原因或结果。篮球比赛是根据运动队在规定的比赛时间里得分多少来决定胜负的,因此,篮球比赛的计时计分系统是一种得分类型的系统1.She sells flowers _ make money.2.A.made B.make C.to make2.The room is not big enough _.A.to live in B.for living C.to live3.Im sorry _ you.A.hit B.to hit C.hittingB.4.He is too young _(go)to school.篮球比赛是根据运动队在规定的比赛时间里得分多少来决定胜负
15、的,因此,篮球比赛的计时计分系统是一种得分类型的系统6.作定语作定语(后置)后置)I have something _ 要说要说.2.She has a lot of work _ 做做 every day.3.The old man has a house _ 住住.4.She is a nice person_ 谈谈话话.to say to doto live into talk with6.不定式做定语:用来修饰前面的名词或者不定代词。不定式做定语:用来修饰前面的名词或者不定代词。篮球比赛是根据运动队在规定的比赛时间里得分多少来决定胜负的,因此,篮球比赛的计时计分系统是一种得分类型的系统
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