八年级动词不定式

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外研版英语八年级上册Module6【语法课堂】:动词不定式

外研版英语八年级上册Module6【语法课堂】:动词不定式

【语法课堂】:动词不定式1.不定式的基本形式与结构动词不定式指通常由to加上动词原形(如to write) 所构成的一种非限定性动词形式,但在有些情况下to可以省略。

动词不定式有进行体和完成体(如上to be writing,to have written),也有被动态(如to be written),所有的主动词,不论是及物动词还是不及物动词,也不论是动作动词还是状态动词,都有不定式形式。

助动词除be和have外,没有不定式形式。

动词不定式在语法功能上可作主语、宾语、表语、定语和状语。

2.不定式的用法1)不定式结构作主语①Te get contact with his family in Taiwan made him extremely happy since they separated more than 40 years ago.②To finish that task in such a short time is really a challenge.在上述情况下,如果不定式较长,显得头重脚轻,则可由代词让作形式主语(形式主语it不可由that或this等其他代词代替),而将不定式放到后面。

如:It made him extremely happy to get contact with his family in Taiwan since they separated more than 40 years ago.John admitted that it is always difficult for him to be on time.不定式结构所表示的动作是谁做的,即不定式的逻辑主语,通常可以通过for sb. to do sth. 结构表达:It is quite important for us to read good books during a general review.It is not difficult for those talented students to pass the exam.在某些形容词(如careless,clever,considerate,foolish,good,impolite,kind,naughty,nice,silly,stupid等)作表语时,不定式后可以加of来引导出其逻辑主语:It is very kind of you to tell me the truth.It is stupid of him to do such a silly thing.2)不定式作宾语不定式作宾语有两种:一种是及物动词后直接跟带to的不定式,另一种是“及物动词+疑问词+带to的不定式。

八年级动词不定式总结

八年级动词不定式总结
动词不定式
动词不定式是一种非谓语动词,在句中 起名词、形容词或副词的作用,可在句中 作主语、宾语、定语、状语或宾语补足语 动词不定式的形式是“to+V原形”,但to有 时 要省略。
动词不定式的结构
肯定: to + V.原
否定:not/never + to + V.原 1) He likes to read novels. 2) I saw him come. 3) We decided not to buy that house. 4) It is interesting to fly a kite. 5) Please let him not go there.
1、I hope to finish it tomorrow .
2、She plans to go and teach in the country.
三、复合不定式
疑问词+to do
1、我不知道接下来该做什么。
I don’t know____________ next. what to do
2、她不能决定买哪本书。
It is easy _______ for her to learn English well. of It is clever ________ you to solve this problem.
作主语
2、It takes sb. some time to do sth.
我每天花去三个小时完成家庭作业。 It takes me three hours to finish the homework every day. I spend three hours finishing the homework every day.

人教版英语八年级上册Unit5(语法全解):动词不定式

人教版英语八年级上册Unit5(语法全解):动词不定式

动词不定式全解不定式作宾语1) 动词+ 不定式afford aim appear agree arrange ask be decide bother care choose come dare demand desire determine expect elect endeavor hope fail happen help hesitate learn long mean manage offer ought plan prepare pretend promise refuse seem tend wait wish undertake举例:The driver failed to see the other car in time.司机没能及时看见另一辆车。

I happen to know the answer to your question.我碰巧知道你那道问题的答案。

2)动词+不定式;动词+宾语+不定式ask, beg, choose, expect , hate, he lp intend like, love, need prefer, prepare, p romise, want, wish…I like to keep everything tidy.我喜欢每件东西都保持整洁。

I like you to keep everything tidy.我喜欢你年使每件东西都保持整洁。

I want to speak to Tom.我想和汤姆谈话。

I want you to speak to Tom.我想让你和汤姆谈话。

3)动词+疑问词+ todecide, know, consider forget, learn, remember, show, understand, see, wonder, hear, find out, explain, tellPlease show us how to do that. 请演示给我们如何去做。

牛津译林版八年级英语上册动词不定式的用法

牛津译林版八年级英语上册动词不定式的用法

动词不定式的用法一,动词不定式作宾语1. 概述:动词不定式是动词的非谓语形式之一,其表现形式为:to+动词原形。

其中to是动词不定式符号,没有任何词义。

其否定形式是在to前面加not。

动词不定式有动词的特点,可以有自己的状语;若不定式动词是及物的,可以带自己的宾语.一起构成动词不定式短语。

2. 用法:动词不定式没有人称和数的变化,它具有名词、形容词和副词的特征,同时也保留了动词的某些特征,在句中可充当主语、表语、宾语、宾语补足语、定语以及目的状语等。

本单元介绍动词不定式作宾语的用法。

(1)常见的能带动词不定式作宾语的动词有:want,like,love,wish,hope,need,try,ask,seem,help,learn,decide,plan,start,begin,forget,remember,choose ,prepare,agree 等。

e.g: ① Kate wants to be a doctor when she grows up.② He decided to buy a new MP4.③ We all hope to go to Taizhou next month.④ I don’t like to be late for school.⑤I forgot to bring the MP4 hem.(2)有些动词后面接复合宾语时,常用it作形式宾语,而真正的宾语则由动词不定式来担当,并位于宾语补足语之后。

常见的这样的动词有find,think,feel,make等。

e.g: ① I find it interesting to play computer games我发现玩电脑游戏很有趣。

② We all think it very difficult to finish the work in an hour.3.“疑问词+不定式”结构疑问词who,what,which,when,where和how后接动词不定式可在句中作宾语、主语、表语。

人教版英语八年级上册动词不定式讲解,专项练习(附答案)

人教版英语八年级上册动词不定式讲解,专项练习(附答案)

初中英语语法(动词不定式)1.不定式的基本形式与结构动词不定式指通常由to加上动词原形(如to write) 所构成的一种非限定性动词形式,但在有些情况下to可以省略。

动词不定式有进行体和完成体(如上to be writing,to have written),也有被动态(如to be written),所有的主动词,不论是及物动词还是不及物动词,也不论是动作动词还是状态动词,都有不定式形式。

助动词除be和have外,没有不定式形式。

动词不定式在语法功能上可作主语、宾语、表语、定语和状语。

2.不定式的用法1)不定式结构作主语1.Te get contact with his family in Taiwan made him extremely happy since they separated more than 40 years ago.2.To finish that task in such a short time is really a challenge.在上述情况下,如果不定式较长,显得头重脚轻,则可由代词让作形式主语(形式主语it不可由that或this等其他代词代替),而将不定式放到后面。

如:1.It made him extremely happy to get contact with his family in Taiwan since they separated more than 40 years ago.2.John admitted that it is always difficult for him to be on time.不定式结构所表示的动作是谁做的,即不定式的逻辑主语,通常可以通过for sb. to do sth. 结构表达:1.It is quite important for us to read good books during a general review.2.It is not difficult fot those talented students to pass the exam.在某些形容词(如careless,clever,considerate,foolish,good,impolite,kind,naughty,nice,silly,stupid等)作表语时,不定式后可以加of来引导出其逻辑主语:1.It is very kind of you to tell me the truth.2.It is stupid of him to do such a silly thing.2)不定式作宾语不定式作宾语有两种:一种是及物动词后直接跟带to的不定式,另一种是“及物动词+疑问词+带to的不定式。

八年级动词不定式的知识点

八年级动词不定式的知识点

八年级动词不定式的知识点动词不定式是英语中的一种非限定性从句,可以作为名词、形容词和副词等成分。

在英语中,它有其特殊的结构和用法,同时也是英语语法中的重要知识点之一。

一、基本结构动词不定式一般由“to+动词原形”构成,例如:to go,to eat等等。

二、作为名词1. 动词不定式作主语动词不定式作为主语时,位于句首,后面跟随谓语动词,例如:To learn English well is very important.学好英语十分重要。

2. 动词不定式作宾语动词不定式作直接宾语时,常用于某些动词(如want, expect, agree, hope, promise等)的宾语从句中,例如:I want to see you tomorrow.明天我想见你。

三、作为形容词1. 动词不定式作定语动词不定式作定语时作为形容词,并修饰名词或代词,例如:I have a book to read.我有一本要读的书。

2. 动词不定式作表语动词不定式作表语时作为形容词,并与be动词连用,例如:His dream is to be a doctor.他的梦想是成为一名医生。

四、作为副词1. 目的状语动词不定式作目的状语表示主语动作的目的或者原因,位于谓语动词之后,例如:I went to the supermarket to buy some fruits.我去超市买水果了。

2. 结果状语动词不定式作结果状语表示主语动作的结果或者后果,位于谓语动词之后,例如:He talked too much to be heard.他说得太多,没人听得懂。

以上就是八年级动词不定式的知识点,掌握好这些知识点,能够更好地理解英语语法,提升自己的英语语言水平。

人教版英语八年级上册08动词不定式(基础讲解)

人教版英语八年级上册08动词不定式(基础讲解)

动词不定式【概念引入】1. 动词不定式名言:(1)动词不定式作表语To lose is to learn. 失败就是学习。

(2)动词不定式作主语It is better to give than to take. 给予比接受更好。

(3)不定式作宾语Expect to be treated as you have treated others.你怎样待别人,就指望别人怎样待你。

(4)不定式作宾补Adversity causes some men to break,others to break records.逆境使一些人崩溃,也使一些人破记录。

(5)不定式作定语There is a time to talk and a time to act.该说的时候说,该做的时候做。

(6)不定式作目的状语To find the exact answer,one must first ask the exact question.要找到确切的答案,首先必须提出确切的问题。

2. 动词不定式定义:动词不定式是一种非谓语形式(不能作谓语),基本形式是to do形式(to是不定式符号的标志,无意义,可以不翻译)肯定式:to + 动词原形否定式:not to + 动词原形【用法讲解】1.动词不定式的特征动词不定动式是一种非谓语动词形式,它没有人称和数的变化,在句子中不能作谓语,但可以作除谓语之外的其它任何句子成分(主语、表语、宾语、宾语补足语、定语和状语);动词不定式具有名词、形容词和副词的特征,同时还保持动词的某些特点,既可以有自己的宾语和状语,动词不定式和它的宾语和状语构成不定式短语。

2. 动词不定式在句子中的作用动词不定式是由to+动词原形构成,在句中起名词,形容词和副词的作用,可以担任除谓语以外的其它任何成分。

(1)动词不定式作主语。

例如:To master a language is not an easy thing.掌握一门语言不是一件容易的事情。

初中英语动词不定式及动名词总结

初中英语动词不定式及动名词总结

初中英语动词不定式及动名词总结初中英语动词不定式及动名词总结(八年级)一、后跟动词不定式结构1.agree to do XXX同意做…2.decide to do XXX决定做…3.hope to do sth希望…4.need to do sth需要…5.offer to do sth主动…6.plan to do sth计划…7.can’t wait to do迫不及待…8.continue to do sth继续…9.try (one’s best) to do尽力…ed to do sth过去常常…11.feel lucky to do XXX做某事很幸运12.ask sb to do sth叫某人做13.want(sb)to do sth想要(某人)…XXX鼓励某人做…15.allow sb to do sth允许某人做…16.XXX提醒某人做…17.send sb to do sth派某人做…18.It’s +形+for sb +to do XXX做某事对或人来讲怎么样19.It XXX sb some time to do sth做某事破费或人多长工夫20.too+形+to do太…而不克不及…21.XXX do充足…能够做…22.不定式能够作表语My job\dream is to do23.不定式能够作定语a good way\place to do sth做某事的好方法24.不定式能够表目的To get good grades。

I must study hard2、后跟动名词方式1.consider doing sth考虑2.XXX喜爱3.XXX XXX做完某事4.mind doing sth介意5.keep doing sth一直keep on doing sth继续|坚持6.can’t。

doing sth停不下来7.can’t。

help doing sth不由得8.put off doing sth推迟9.give up XXX摒弃10.ba busy doing sth忙于11.have a good time doing XXX做某事很开心12.have XXX做某事很困那13.how \what about doing sth…怎么样14.XXX成功做15.XXX感谢做16.be XXX对做某事感乐趣be afraid of doing sth害怕be good at doing sth善于于XXX对做…自豪be used to doing sth惯于17.sb spend some time (in) doing sth18.XXX三.即可加to do又可加ing,但意思差别大XXX do XXX忘记要做某事(事情还未做)XXX遗忘做过某事(工作已做)XXX记得要做某事(事情还未做)XXX记得做过某事(事情已做)try to do XXX尽力去做某事XXX尝试做某事to do XXX停下了去做某事XXX停止做某事used to do XXX过去常常做某事be used to doing sth气于做某事四.后跟动词原型make sb do XXX使某人做某事let sb do XXX让某人做某事help sb (to) do sth帮助或人做某had better do XXX最好做某事五.便可跟原型,又可跟ingsee sb do XXX看见某人做了某事(事情已发生)XXX瞥见或人正在做某事(工作正在产生)hear sb do XXX听见或人…了(工作已产生)。

八年级英语动词不定式+双宾语讲解及练习

八年级英语动词不定式+双宾语讲解及练习

八年级英语动词不定式+双宾语讲解及练习专题三:动词不定式+双宾语一.动词不定式含义当我们要表示“想做某事、需要做某事或决定做某事”时,就会出现两个动词连用的情况,这时应如何表达呢?同学们自然会想到want to do sth。

need to do sth.和decide to do sth.等表达方式。

行为动词后的动词都采用了“to+动词原形”的结构。

我们把这种结构称为动词不定式。

动词不定式没有人称和数的变化,在句中不能作谓语。

二.动词不定式的功能1.动词不定式作宾语(1)动词+to do sth.表示的多为将来的行为。

如:want to do sth。

/ hope to do sth。

/ learn to do sth。

/ try to do sth。

/ decide to do sth。

/ forget to doXXX to do sth。

/ stop to do sth./ plan to do sth.等(2)to偶然可省略,布局为动词+do sth.had better do sth。

/ why not do sth.2.动词不定式作宾语补足语(1)宾语补足语是对宾语的补充说明,结构:“动词+宾语+动词不定式”。

其否定结构要在todo前面加not,构成not to do。

如:allow sb。

to do sth。

/ choose sb。

to do sth。

/ want sb。

to do sth。

/ tell sb。

to do sth。

/ ask sb。

to doXXX(2)在表示感觉、祈使等意义的动词help。

make。

let。

have。

feel。

see等后接不带to的不定式。

3.动词不定式作目的状语(1)假如透露表现“做某事是为了甚么”,能够用动词不定式透露表现目标,常与soas,in order等组成短语不定式既可以放在句首,也可以放在句尾。

如:XXX to have rest.=To have rest。

todo不定式

todo不定式

八年级英语语法专题(II)动词不定式的用法动词不定式是动词的一种非谓语形式,没有人称和数的变化,不能单独作句子的谓语。

其构成形式为"to+动词原形",to为动词不定式的符号,本身无意义。

动词不定式具有两大特点: 1.具有动词的特点,因此,后面可以跟表语、宾语或状语,构成动词不定式短语。

2.具有名词、形容词或副词的特点,可以在句子中用作主语、宾语、宾语补足语、状语、定语、表语及同位语等。

一、动词不定式作主语1. It's our duty _________ the room every day.A. to cleanB. cleanedC. cleanD. cleans 2. It's hard for us _________ English well.A. learnB. learnsC. to learnD. learning(江西省)3.建造这座立交桥将花费工人们一年多的时间。

It will _____the workers over a year ______ ______the flyover.(海淀区)4. It's very nice ______you to get me two tickets _________ the World Cup.A. for,ofB. of,forC. to,forD. of,to(安徽省)重点掌握:动词不定式可以直接放在句首作主语,而常用先行词it作形式主语,而将真正的主语(to do不定式)置于后面。

常见的句式有:(1)It is +形容词(或名词)+ for of/sb+to do sth.It is helpful for us to learn English well. It’s very kind of you to help me.It is the best time to visit USA in summer.(2)It takes sb some time to do sth1) for sb. 常用于表示事物的特征特点,表示客观形式的形容词,如easy, hard, difficult,helpful,interesting, impossible等:It's very hard for him to study two languages.2) of sb的句型一般用表示人物的性格,品德,表示主观感情或态度的形容词,如good, kind,nice, clever, foolish, right careless 。

人教版英语八年级上Unit 5动词不定式

人教版英语八年级上Unit 5动词不定式

动词不定式一、结构:动词不定式分为带to不定式(to do sth.)与不带to 不定式(do sth.)。

其中,to 不是介词,而是动词不定式符号,无意义,可以不翻译。

肯定式:to do 否定式:not to do二、作用:在句子中可以作主语、宾语、表语、宾语补足语、定语或状语等。

三、用法:1、作主语不定式作主语时,谓语用单数(如并列时则用复数)。

往往用it作形式主语,把不定式放在谓语后面。

常用结构为:It is + adj. /n.(+ for sb.) + to do sth.It is + adj./n. + (of sb. )+ to do sth.e.g. To watch movies is my hobby.To fight with crime is dangerous.It’s enjoyable for me to have dinner with you.It’s necessary to learn every subject well.It’s kind of you to che ck the information carefully.2、作宾语(1)动词+不定式:v.+ to do sth.下列动词(短语)通常用不定式作宾语:help(带to不定式或不带to 不定式皆可), need, want, hope, wish, expect, learn, decide, choose, would like, like, love, begin, start, stop, try, forget, remember等。

e.g. He decided to go on a vacation.James chose to work in the city.Teachers teach to learn something.(2)动词(know, ask, show, teach, find out等)+疑问词+不定式: v. + wh- /how+ to do sth。

人教版英语八年级下册【语法全解】:动词不定式

人教版英语八年级下册【语法全解】:动词不定式

【语法全解】:动词不定式(1)动词不定式的构成:to+动词原形(do),有时可以不带to,没有人称和数的变化。

(2)动词不定式的否定形式:not+ to do,不需要借助于助动词来完成。

(3)功能:动词不定式是一种非谓语动词形式,在句中可以充当宾语、宾语补足语、状语以及主语、表语、定语等。

①作宾语,动词不定式可以用在一些及物动词之后作宾语。

如try,remember,hope等。

We hope to leave at once.我们希望马上离开。

He’ll try not to be late again.他将设法不再迟到。

巧记接动词不定式作宾语的动词三个希望(hope,wish,expect)两需要(want,need),设法(try)同意(agree)作准备(prepare)。

开始(start,begin)计划(plan)莫忘记(forget),记着(remember)决定(decide)能学会(learn)。

②作宾语补足语。

1)在ask, tell, want, would like, order等动词(短语)后接宾语补足语,必须带to。

The doctor told him to drink more water.医生告诉他要多喝水。

2)在使役动词make, let, have和感官动词see, hear, watch, feel等后,不带to(但变为被动语态时不定式要带to)。

The boss made them work the whole night.老板迫使他们工作了一整夜。

记牢宾补不带to,一感、二听要仔细。

三让四看记心间,半个帮助最相宜。

(一感:feel;二听:hear,listen to;三让:let,make,have;四看:see,watch,look at,notice;半个帮助:help,可带to也可不带)③作状语,表示目的、原因、结果等。

We are working hard to make a better life.我们努力工作目的是使我们的生活更美好。

八上动词不定式用法

八上动词不定式用法

八上动词不定式用法动词不定式是八年级上册英语语法中的一个重要知识点。

它形式简单却用法多样,掌握好动词不定式对于提升英语语言能力有着重要的作用。

动词不定式的构成是“to +动词原形”,其中“to”不是介词,而是动词不定式的符号,没有实际意义。

动词不定式在句子中可以充当多种成分,比如主语、宾语、宾语补足语、定语、状语等。

先来说说它作主语的情况。

动词不定式作主语时,常常为了避免句子“头重脚轻”,会用“It is +形容词+for/of sb to do sth”这个句型。

例如:“It is important for us to learn English well”(学好英语对我们来说很重要。

)这里用“it”作形式主语,真正的主语是后面的动词不定式“to learn English well”。

需要注意的是,当形容词是描述人的品质、性格时,用“of”;如果是描述事物的特征,则用“for”。

比如:“It's kind of you to help me”(你帮助我真是太好了。

)“kind”是描述人的品质,所以用“of”。

再看看动词不定式作宾语的例子。

有些动词后面只能接动词不定式作宾语,常见的有“want,hope,decide,plan,expect”等。

例如:“I want to go shopping this weekend”(这个周末我想去购物。

)“She hopes to become a doctor”(她希望成为一名医生。

)接着是动词不定式作宾语补足语。

常见的动词有“ask,tell,want,allow,encourage”等。

比如:“My mother asks me to clean my room every day”(我妈妈每天叫我打扫房间。

)“The teacher encourages us to study hard”(老师鼓励我们努力学习。

)动词不定式作定语时,通常放在被修饰词的后面。

八年级上册英语动词不定式用法

八年级上册英语动词不定式用法

八年级上册英语动词不定式用法一、不定式一般式的用法1. 表示未发生的动作即表示发生在谓语动作之后的动作。

如:I expect him to arrive tomorrow. 我预计他明天到达。

I hope to catch an early train. 我希望赶上早班火车。

The doctor advised me to take a complete rest. 医生建议我完全休息。

2. 表示同时发生的动作即表示与谓语动作同时发生或略先于谓语动作的动作。

如:Who heard him say that? 是谁听到他这样说的?(say与heard几乎同时发生)I’m sorry to hear that. 听到这事我很难过。

(to hear 略先于am sorry)3. 表示一般情况即看不出动作的先后关系,而是表示一种情况或现象。

如:Washing the car seems to be your main hobby. 擦洗汽车似乎是你的主要爱好。

None of her many lovers seemed to want to marry her. 在她的许多情人中似乎没有一个愿意娶她的。

二、不定式进行式的用法1. 表示同时进行即表示与谓语动作同时发生且正在进行的动作。

如:He seems to be following us. 他似乎在跟着我们。

He pretended to be looking for a book. 他假装在找书。

I happened to be looking out of the window when they arrived. 他们到达时我碰巧正向窗外望去。

2. 表示将来正如可用进行时态表示将来意义一样,不定式的进行式有时也可表示将来。

如:You are lucky to be going by air. 你挺幸运的,能乘飞机走。

He was happy to be coming home. 就要回家了他感到高兴。

八年级英语动词不定式单选题30题

八年级英语动词不定式单选题30题

八年级英语动词不定式单选题30题1. To learn English well is very important for us.A. To learnB. LearnC. LearningD. Learns答案:A。

本题考查动词不定式作主语。

动词不定式“To learn English well”作主语,表示具体的动作或行为。

选项B“Learn”是动词原形,不能直接作主语。

选项C“Learning”是动名词形式,通常表示一般性、习惯性的动作,在此语境中不如动词不定式准确。

选项D“Learns”是第三人称单数形式,也不能作主语。

2. To play football in the street is dangerous.A. To playB. PlayC. PlayingD. Plays答案:A。

此题考查动词不定式作主语。

“To play football in the street”是动词不定式结构,作主语表示具体的动作。

选项B“Play”是动词原形,不能作主语。

选项C“Playing”是动名词形式,在本句中不如动词不定式贴切地表达“在街道上踢足球”这个具体的行为。

选项D“Plays”是第三人称单数形式,不能作主语。

3. To finish the work on time is difficult for him.A. To finishB. FinishC. FinishingD. Finishes答案:A。

本题考查动词不定式作主语。

“To finish the work on time”作主语,强调按时完成工作这个具体的动作。

选项B“Finish”是动词原形,不能作主语。

选项C“Finishing”是动名词形式,在此处不如动词不定式更能突出“按时完成工作”的特定动作。

选项D“Finishes”是第三人称单数形式,不可作主语。

4. To help others makes me happy.A. To helpB. HelpC. HelpingD. Helps答案:A。

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八年级动词不定式专项练习
一、动词不定式的用法
否定形式:not + to + 动词原形构成
1)作主语常用句型:It is adj. to do sth.
To learn English well is not easy. 或 It is not easy
to learn English well.
2)作表语(放在be动词后) My wish is to become a teacher.
3)作宾语(①及物动词后)Most of us like to watch football matches.
①及物动词后
决定想做计划需要同意,能做被用来做的事
decide to do sth. 决定做某事 want ∕ would like
to do sth. 想做某事
plan to do sth. 计划做某 need to do sth. 需
要做某事
agree to do sth. 同意做某事 afford to do 能
做某事
be used to do 被用来做某事
迫不及待下决心做过去常常未能做的事
can’t wait to do 迫不及待地要做某事 make up one’s mind
to do 下决心做某事 used to do 过去常常做
某事 fail to do 未能做某事
②特殊疑问词后
He doesn’t know how to use the machine. (不定式作宾语)
4)作宾语补足语 He told me to be here on time.
①带to类
请求与命令想要邀请期待鼓励与建议答应告诫允许提醒和
帮助
want sb. to do sth. 想要某人做某事 invite sb. to do sth. 邀请某人做某事
expect sb. to do sth. 期待某人做某事 encourage sb. to
do sth. 鼓励某人做某事
advise sb. to do sth. 建议某人做某事 promise sb. to
do 答应某人做某事
warn sb. to do sth. 告诫某人做某事 allow sb. to do sth. 允许某人做某事
remind sb. to do sth. 提醒某人做某事 help sb. (to) do sth. 帮助某人做某事
②省略to 类
make/let/have sb. do sth. 使/让某人做某事
see/watch/hear/notice sb. do sth.
__________________________________________________
注意两种用法得区分:
see sb. doing/ do sth. hear sb. doing/ do sth.
watch sb. doing/ do sth. notice sb. doing/ do sth.
had better (not)do sth. 最好(不)做… help sb.(to)do sth
why not /why don’t you do sth.为什么不做…? 表达向某人提出建议
Would rather do sth.?宁愿做… Would you please do sth.?
5)作定语(不定式修饰名词或代词作定语,放于名词或代词后)I have nothing to say about that thing.
6)作状语
目的状语
He stopped to have a look.
结果状语
I’m glad to see you here.
不定式的特殊句型:
1)too…to do sth.…:太…而不能… He is too excited to speak.
2)enough to do:足以做…The child is old enough to go to school
不定式专项练习题
1.You’d better _______ at home all the time. It’s bad for your health.
2. A. don’t stay B. no to
stay C. not stay D. not staying
3.2. The mother asked the boy _______ down the ladder, but he went on _______ instead.
4. A. come; climbing B. to come; to climb C. to come; climbing D. coming; climbing
5.3. Is there any time _______ to the museum?
6. A. going B. to
go C. goes D. gone
7.4. The teacher asked the students to close the windows ____the wind from ____the papers away.
8. A. to stop; blowing B. stopping; blowing C. to stop; blow D. stopped; blow
9.5. I find _______ him all about it.
10. A. necessary to tell B. that necessary to C. necessary it to tell D. it necessary to tell
6.What is the best way do you think ______ the wild animals?
7. A. protecting B. to
protecting C. protected D. to protect
8.7. It’s too hot today. Why not _______ your coat?
9. A. take on B. to take off C. take off D. taking off 10.8. Would you please _______ any noise? The baby has just fallen asleep.
11. A. make B. to
make C. not to make D. not make
12.9. --- Would you please try _______
late again? --- Sorry, I won’t be late again. 13. A. not to be B. to be not C. not be D. be
14.10. --- Would you mind _______ for a few
minutes? --- No, not at all.
15. A. wait B. to
wait C. waited D. waiting
16.11. It’s very nice _______ you to _______ me about it.
17. A. for; tell B. of;
say C. to; speak D. of; tell
12. The son wants his mother _______ him up at six o’clock every day.
A. to ring
B.
ring C. rings D. ringing 13. --- I often use Hotmail to send e-mails.--- Really? Would you please show me _______ it?
A. how can I use
B. what can I
us C. how to use D. what to use
14. Tell the boy _______ out of the window.
A. not to look
B. to not look
C. don’t look
D. not look
15. Her hope _______ the 2008 Olympic Games.
A. to take part in
B. is to take part
in C. taking part in D. will take part in。

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