初中英语语法：动词不定式的10大考点详解

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初中英语语法知识精讲之不定式考点的归纳和总结

初中英语语法知识精讲之不定式考点的归纳和总结一、不定式的语法特点不定式可以作主语、宾语、表语、定语、状语等。

不定式可以作主语、宾语、表语、定语、状语等，这是不定式语法特点之一。

下面我们一一列举:作主语不定式作主语通常表示目的或原因。

例如:"To be or not to be, that is the question."(生存还是毁灭，这是个问题。

)作宾语不定式作宾语通常表示目的或原因。

例如:"I need to study hard to pass the exam."(为了通过考试，我需要努力学习。

)作表语不定式作表语通常表示主语的状态或特征。

例如:"The sky is blue."(天空是蓝色的。

)作定语不定式作定语通常表示主语的特征或状态。

例如:"The book on the shelf is interesting."(书架上的书很有趣。

)作状语不定式作状语通常表示时间、地点、原因、方式等。

例如:"I will go to the park tomorrow."(我明天会去公园。

)不定式可以由动词原形、动名词、不定式符号to和主语构成。

不定式可以由动词原形、动名词、不定式符号to和主语构成，这是不定式语法特点之一。

下面我们一一列举:动词原形不定式可以由动词原形构成，例如:"I want to eat pizza."(我想吃披萨。

)动名词不定式也可以由动名词构成，例如:"She enjoys playing soccer."(她喜欢踢足球。

)不定式符号to不定式还可以由不定式符号to和主语构成，例如:"To be or not to be, that is the question."(生存还是毁灭，这是个问题。

)主语不定式还可以由主语构成，例如:"The teacher gave the students a task to complete."(老师给学生布置了一个任务完成。

第十二章动词不定式(思维导图+知识梳理+好题精炼)2022-2023初中英语中考语法归纳

第十二章动词不定式思维导图知识梳理一、不定式概述动词不定式的基本形式是:“t o+动词原形”,有时可以不带to.不带to的不定式与动词原形同形,但它不是原形,而是一种语法形式.除基本助动词do和情态动词外,英语动词都有不定式形式.动词不定式没有人称和数的变化,在句子中不能作谓语,但可以担任除谓语外的任何成分－主语、表语、宾语、定语、状语和宾语补足语.动词不定式和它的宾语或状语构成不定式短语.不定式有时态、语态变化(以do为例):动词不定式的句法作用(一)作主语用作主语的动词不定式通常表示一种具体的、特定的行为,其谓语动词用第三人称单数形式.To obey the laws is everyone's duty.服从法律是每个人的职责.How to use the computer is a question.怎么使用计算机是一个问题.How to get there is not decided yet.怎样去那里还没决定下来.点拨(1)在很多情况下,常用it作形式主语,而把真实主语不定式放在谓语之后.It was difficult to sell my car.我的车很难卖掉.It's not known where to stay for the night.在哪里过夜还不知道.(2)如果要表示不定式的动作是谁做的,一般在不定式前加一个for短语.It will be a regret for us not to help him.我们没有帮助他是个遗憾.(3)在某些形容词(如kind, good, nice, wise, unwise, clever, silly, wrong, right, foolish, stupid, careless, considerate, rude, naughty, impolite等)作表语时,不定式前常可加一个以of引起的短语,来说明不定式指的是谁的情况.It would be rude of us to refuse their invitation.(我们)拒绝他们的邀请,会显得无礼.(二)作表语作表语,一般紧跟在系动词,如:be, seem, get等后面,用以说明主语.The question is when to start.问题是什么时候启程.You seem to have lost weight.你好像减肥了.What we have to do first is to find a solution.我们得做的第一件事是找出一个解决办法.点拨当不定式所作的表语仅用来说明主语的内容时,这个不定式只作单纯的表语,而不具有未来的含义.(三)作宾语能以不定式作宾语的动词很多,常见的有:agree, begin, decide, expect, forget, hope, learn, like, manage, pretend, start, try, want, wish等.Do you wish to see the manager?你想见经理吗?They decided to learn English hard.他们决定好好学英语.Don't forget to meet me at 6:00.别忘了六点钟和我见面.有些动词,如:tell, advise, show, teach, know, forget, learn , remember, show,understand, see, wonder, hear, find out, explain, decide, discuss等后面,常用带疑问词的不定式作宾语.We don't know who(whom)to ask.我们不知道问谁.We asked how to get to the station.我们问怎么到达车站.Have you decided where to go for your holidays?你们决定到哪儿度假了吗?I don't know whether to apply for the job or not?那份工作我不知道申请还是不申请?(四)作定语I have no time to waste.我没有时间可浪费.Let me find a place to park.我来找个停车的地方.He is always the first to come to work and the last to leave.他总是第一个来上班,最后一个走.点拨不定式修饰something, anything, nothing时,放在它们的后面.如果something, anything, nothing 有形容词来修饰,词序是something(nothing...)+形容词＋不定式.My father had something to do.我父亲有事要办.Have you got anything important to buy?你有什么重要的东西要买吗?(五)作状语不定式常可用作状语,修饰动词,表示行为的目的、结果、原因等.一般放在被修饰词之后,但在表示目的时,为了强调也可放在句首.1.作目的状语为加强语气在否定式前还可加上in order或so as组成词组(即:in order to...,so as to...),作状语表示目的.To live a long and healthy life, we must learn to have a balanced diet.为了能过长寿而健康的生活,我们必须懂得吃均衡的食品.I stayed there so as to see what would happen.我留在那儿,为的是想看看会发生什么事.In order to help him, we would do everything we can.为了帮助他,我们愿意尽一切力量.2.作结果状语表结果,其逻辑主语通常亦是全句的主语.在“so...as to...”“such...as to..“enough to...”“only to...”以及“too...to...”等结构中的不定式皆表示结果.She is old enough to go to school.她已到了可以上学的年龄了.He was too drunk to drive home.他酩酊大醉,没法开车回家.3.作原因状语She trembled to think of the terrible accident.想到那可怕的车祸,她就不寒而栗.We jumped with joy to hear the news.听到这消息,我们都高兴地跳了起来.(六)宾语补足语1、有很多动词的后面都可以有不定式作宾语补足语常见的这类动词有:advise, ask, tell, help, wish, want, expect, forbid, persuade, press, request, teach, warn等.She asked her grandfather to play game with her.她请爷爷跟她一起做游戏.Mother told me to cook the meal.妈妈叫我做饭.2.有一些动词后用作宾语补足语的不定式通常不带to,这种动词有两类:一类是感觉动词,另一类是使役动词感觉动词:如feel, see, hear, watch, notice等.使役动词:如make, let, have等.Let me do it for you.让我来替你做.Don't let her go out.别让她出去.I made him work hard.我迫使他加劲干.(1)动词help之后,复合宾语中的不定式可带to,亦可不带to.在上述动词转换为被动结构时,其后的不定式必须带to.He was seen to enter the theatre.有人看见他走进了剧院.I was made to do my homework the whole night.我被迫整晚做作业.Can you help me (to) move this table?你能帮我移动一下这张桌子吗?(2)感官动词的宾语补足语有两种形式:不带to的不定式和动词-ing形式.I heard Meimei singing in her room when I went past.我路过的时候听见梅梅在房间里唱歌.(路过的瞬间正在唱,所以用singing)We often hear Meimei sing in her room.我们经常听见梅梅在房间里唱歌.(经常听见,用不定式)I saw him come in.I saw him coming in.两句话的意思都一样:我看见他进来.用不定式着重于动作的全过程,用动词-ing形式则是强调当时动作的进行情况.3.当谓语动词为think, make, find, consider, feel, regard等词,作宾语的不定式后面有宾语补足语时,常用it作形式宾语,而将真正的宾语放在补足语的后面I find it easy to learn English well.我发现要把英语学好很容易.三、不定式的主要句型及注意事项(一)不定式的否定式不定式的否定式:not+不定式,经常和ask(tell)sb. to do sth.句型连用.She asked me not to drive him to the station.她要我不要开车送他到车站.Try not to be late.争取不要迟到.Mary asked me not to give my pen to Jimmy.玛丽让我别把笔给吉米.She decided not to come here again.她决定不再到这儿来.点拨不定式的否定式和否定句的区别:I asked him not to open the door.我让他别把门打开.I didn't ask him to open the door.我没让他把门打开.(二)不定式的进行时态进行式:表示在谓语动词所表示的动作或状态发生时正在进行.It's nice to be sitting here with you.在这儿陪你坐着是非常愉快的.It is unwise for him to be talking that topic all the time.他老是谈论这件事,很不明智.(三)不定式的完成时态完成式表示在谓语动词的动作或状态发生时已经完成.She said she was sorry to have missed you.她说她没见到你很遗憾.He seemed to have visited our factory.他好像参观过我们的工厂.They appeared to have met before.他们看来以前见过面.(四)动词不定式的被动语态表示被动意义I didn't want to be told about it.我不想被告知这件事.Nothing seems to have been forgotten.似乎什么也没有被遗忘.The building is said to have been destroyed in a fire two years ago.据说这幢大楼两年前已毁于一场大火.在以某些形容词,如kind, good, silly, honest, bad, stupid, bold, clever, cruel,courteous, nice, rude, sensible, tactful, wise, wrong等作表语时,后面需用以“of+名词(或代词宾格)＋不定式”结构,以说明不定式所表示的动作的执行者是谁(即of短语是不定式的逻辑主语).It's very good of you to come.谢谢你的光临.How silly of you (it is)to make such a mistake!你出了这样的差错,多傻啊！It's very kind of you to say so.多谢你这么说.在had better, had best, would rather, would rather...than, would sooner, would sooner...than, cannot but, do nothing but等结构后面的不定式要省略“to”.You had better write it in English.你最好用英文写.I would rather stay at home.我宁愿待在家里.好题精练一、用-ing形式或不定式的适当形式完成句子1.Do you enjoy_________ football?(play)2.Fred didn't have any money, so he decided_________ a job.(take)3.We're going out for dinner, Would you like_________ us?(join)4.The teacher reminded the students_________ their test paper on time.(finish)5.When I was tired, I enjoyed_________ TV.(watch)6.It was a nice day, so the old man agreed_________ for a walk.(go)7.I'm not in a hurry, I don't mind_________.(wait)答案:1.playing2.to take3.to join4.to finish5.watching6.to go7.waiting二、选择括号内所给词组完成句子,注意括号内“go+v.-ing形式”构成固定搭配的用法(go boating; go fishing; go dancing; go running; go skating; go hunting; go singing)1.She's a good dancer. She always_________ on Saturday.2.I've got a gun. I'll_________ with that strong hunter next weekend.3.“Where is Tim?”“He has. _________ He always runs in the morning.”4.We have enough fish to eat. Our father_________ every day.答案:1.goes dancing2.go hunting3.gone running4.goes fishing三、仿照示例改写下列句子示例:It is very interesting to play baseball.→ To play baseball is very interesting.1.lt was not polite to speak that way before Mr. Lee.____________________________________________________________________________________________ 2.It can be quite easy to travel by air.____________________________________________________________________________________________ 3.lt will be no problem to arrive there before noon.____________________________________________________________________________________________4.To make those strangers believe us was so difficult.____________________________________________________________________________________________ 5.To help Tom speak Chinese well is not at all easy.____________________________________________________________________________________________ 答案:1.To speak that way before Mr. Lee was not polite.2.To travel by air can be quite easy.3.To arrive there before noon will be no problem.4.It was so difficult to make those strangers believe us.5.It is not at all easy to help Tom (to) speak Chinese well.四、选择填空1. _________ the bookstore, he stopped_________ a few books.A. Passing; buyingB. Passing; to buyC. To pass; buyingD. Having passed; to buy2.Bruce,look at your dirty shoes, You'd better_________ them right now.A. washedB. washingC. washD. to wash3. _________ the room, I found the computer_________.A. Entering; stealingB. Entering; stolenC. To enter; stealD. To enter; stealing4.We've worked hard for nearly one hour. Let's stop_________ a rest now.A. haveB. to haveC. havingD. have had5.My mother always tells me not_________ to the net bars(网吧)．A. goB. to goC. goesD. going6.The teacher asked us_________ English for half an hour in the morning.A. reads B reading C. to read D. read7.You will have to get up early tomorrow. Stop_________ TV, Peter.A. watchesB. watchC. to watchD. watching8.I find it hard_________ English well.A. learnB. learningC. to learnD. learns9.The teacher asked John_________ a short talk in our class meeting.A. giveB. to giveC. gaveD. giving10.The girl was too poor_________ a houseA. to buy; to live inB. to buy ;to liveC. buy; to liveD. buying; living in11.It was very late at night, but Mr. Brown still went on_________.A. works B .worked C. working D. work12.Remember_________ him about it before he goes away.A. tellB. to tellC. tellingD. to telling13.Lin Tao is strong enough_________ the big box.A. carryB. to carryC. carryingD. carries14.Her mother told her_________ in bed.A. not readB. not to readC. don't readD. to not read15.When class began, we stopped_________ to the teacher carefully.A. listeningB. listenC. listens D .to listen16.You'd better_________ the cinema by bus.A. don't goB. to goC. to go toD. go to17.What did the manager_________ you to_________ at the meeting?A. tell; sayB. ask; speakC. tell; speakD. ask; talk18.Tom was let_________ in the gate house.A. waitB. to waitC. waitingD. to have waited19.Mr.Hu has enough time_________ the job in two days.A. finishB. to finishC. finishingD. finished20.Look,the building_________ is our library.A. is repairedB. being repairedC. repairingD. to be repairing21. _________ no money, I could not buy this coat.A. HaveB. HavingC. To haveD. Have had22.The teacher has something important_________ us.A. to tellB. tellsC. tellingD. told23.Li Ming didn't know_________ next.A. to do whatB. what to doC. how to doD. what do24.I'd love_________ to your birthday party.A. comeB. cameC. to comeD. comes25.It took me two hours_________ by bus.A. to get thereB. to get to thereC. get thereD. get to there答案:1-5BCBBB 6-10CDCBA11-15CBBBD 16-20DABBB21-25 BABCA五、改正下列句子的错误1.He seems to not hear from her.____________________________________________________________________________________________ 2.I hope see you soon.____________________________________________________________________________________________ 3.I made them to give the money back.____________________________________________________________________________________________ 4.The scientist gave us some advice on how learning English.____________________________________________________________________________________________ 5.No one noticed him to leave the room.____________________________________________________________________________________________ 6.Have you given up to smoke?____________________________________________________________________________________________ 7.We found him waited at the school gate.____________________________________________________________________________________________ 8.Why not to turn off the light?____________________________________________________________________________________________ 9.She didn't want me go.____________________________________________________________________________________________ 10.I don't know to swim.____________________________________________________________________________________________ 11.China is a developed country belonging to the third world.____________________________________________________________________________________________ 12.It's getting dark. We have to find a hotel to live.____________________________________________________________________________________________ 13.He said he had an important meeting to attended.____________________________________________________________________________________________ 14.They don't allow that people smoke.____________________________________________________________________________________________ 15.It's difficult sell my car.____________________________________________________________________________________________ 答案:1.He seems not to...2.I hope to see...3.I made them give...4....how to learn...5....him leave...6....given up smoking?7...him waiting...8.Why not turn off...9.She didn't want me to go.10.I don't know how to swim.11....a developing...12....to live in13....to attend.14. ...people to smoke.15...to sell my car.。

初中英语动词不定式十大考点解析(整理)

初中英语动词不定式十大考点解析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。

一、动词不定式作主语To learn from your friends is important.=It is important to learn from your friends .To leave without saying goodbye is impolite.= It is impolite to leave without saying goodbye.To walk to school takes me ten minutes.=It takes me ten minutes to walk to school.动词不定式作主语时，可以直接放在谓语动词前面的主语位置，也可以用先行词it作形式主语，而将真正的主语(不定式)置于后面。

常见的句式有：(1)It is +形容词(of sb)to do sth.(2)It is +名词(for sb)to do sth.(3)It takes sb some time to do sth.(4)It is +形容词(for sb)to do sth.句式(1)中常用nice，kind，clever，good，right，wrong，foolish，careless等形容词，与介词of搭配，这些形容词常表述不定式逻辑主语的属性或性质;句式(4)中常用hard，difficult，easy，important等形容词，与介词for搭配，表示不定式表示的动作、行为的性质。

1. It's our duty _________ the room every day.A. to cleanB. cleanedC. cleanD. cleans(甘肃省)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。

不定式知识点归纳总结

不定式知识点归纳总结不定式是英语中的一种非谓语动词形式，在句中可以作为名词、形容词或副词使用，具有无人称、无时态和无语态的特点。

在语法上，不定式是一个复合结构，由to + 动词原形构成。

本文旨在归纳总结不定式的用法和相关知识点。

一、作名词用的不定式1. 作主语不定式可作主语，常用结构为：To + 动词原形。

例如：To learn a foreign language is challenging.（学习外语很有挑战性。

）2. 作宾语不定式可作及物动词的宾语，常用结构为：动词 + 不定式。

例如：She wants to visit her grandparents.（她想去看望她的祖父母。

）3. 作介词的宾语不定式可作介词的宾语，常见的介词有：to, for, about, of, in, on等。

例如：I am looking forward to meeting you.（我期待着见到你。

）4. 作表语不定式可作表语，常用结构为：主语 + be动词 + 不定式。

例如：Her dream is to become a doctor.（她的梦想是成为一名医生。

）二、作形容词用的不定式1. 修饰名词不定式可用来修饰名词，常见结构为：a(n) + 形容词 + 不定式。

例如：He has a lot of work to do.（他有很多工作要做。

）2. 修饰不定代词不定式可用来修饰不定代词，常见的不定代词有：something, nothing, everything, someone, anyone, no one等。

例如：There is nothing to worry about.（没有什么可担心的。

）三、作副词用的不定式1. 修饰动词不定式可以修饰动词，表示动作发生的目的、结果等。

常见结构为：动词 + 不定式。

例如：He went to the store to buy some groceries.（他去商店买了些食品杂货。

动词不定式知识点

动词不定式知识点一、动词不定式的基本概念。

1. 定义。

- 动词不定式是由“to+动词原形”构成（有时可以省略to），它在句中不能单独作谓语，但具有名词、形容词和副词的特征，可以在句中作主语、宾语、表语、定语、状语和补语等成分。

例如：- To see is to believe.（作主语和表语，“眼见为实”）2. 形式。

- 一般式：to do，表示动作与谓语动词同时发生或发生在谓语动词之后。

例如：I want to go to the park tomorrow.（go这个动作发生在want之后）- 进行式：to be doing，表示动作正在进行，与谓语动词同时发生。

例如：He seems to be reading a book.（read这个动作正在进行，与seem同时）- 完成式：to have done，表示动作发生在谓语动词之前。

例如：I'm sorry to have kept you waiting.（keep you waiting这个动作发生在am sorry之前）- 完成进行式：to have been doing，表示动作从过去一直持续到现在，并且可能还会继续下去。

例如：She is said to have been working on this project for years.二、动词不定式在句中的用法。

1. 作主语。

- 直接作主语时，常用it作形式主语，而将真正的主语（动词不定式）后置。

例如：- It is difficult to learn English well.（真正的主语是to learn English well，it是形式主语）- 但是，当动词不定式作主语的句子中有表语形容词时，也可以直接将动词不定式置于句首。

例如：- To be honest is very important.2. 作宾语。

- 动词不定式可以作某些及物动词的宾语，常见的这类动词有want, hope, wish, decide, manage, expect等。

英语语法学习：动词不定式用法的9个知识要点集锦

英语语法学习：动词不定式用法的9个知识要点集锦
1. 不定式的形式：
基本形式：“to+动原”
否定形式：“to”前加“not”
疑问形式：“疑问词+to+动原”
被动形式：“to be +过去分词”
完成形式：“to have +过去分词”
关于以上形式的例句：
It began to rain.
Tell him not to come.
What to do is still unknow
I never expect my bike to be found.
Tom seems to have finished his work.
注意，不定式都有“将要做”的暗示，但是在不定式的完成式中，却是“已经做了”。

2. 不定式的功能：
动词不定式可以在句子中作主语、宾语、定语、状语、表语和宾语补足语。

但也有动词的特征,后面可以跟宾语、表语和状语。

不定式的功能：
To see is to believe. (作主语和表语）。

史上最完整的动词不定式用法规律知识点总结

史上最完整的动词不定式用法规律知识点总结动词不定式是英语中的一种非谓语动词形式。

它可以充当名词、形容词或副词，具有广泛的用途和特定的语法规则。

本文将为您总结史上最完整的动词不定式用法规律知识点，帮助您更好地理解和运用这一语法结构。

一、动词不定式的基本结构动词不定式由“to + 动词原形”构成，例如：to study、to eat、to sleep 等。

它可以作为名词、形容词或副词在句子中进行修饰或起其他功能。

二、动词不定式作为名词动词不定式可以作为名词在句子中担任主语、宾语、表语、同位语等。

1. 作主语：To learn a foreign language is beneficial.学习一门外语是有益的。

2. 作宾语：She wants to go shopping.她想去购物。

3. 作表语：His dream is to become a doctor.他的梦想是成为一名医生。

4. 作同位语：His goal, to win the championship, motivates him to practice every day.为了赢得冠军，他每天都在努力。

三、动词不定式作为形容词动词不定式可以作为形容词修饰名词，通常在名词之前。

1. 修饰名词：I have a book to read.我有一本要读的书。

2. 修饰人：She is the person to ask for help.她是可以求助的人。

四、动词不定式作为副词动词不定式可以作为副词修饰动词、形容词或副词，表示目的、结果、原因等。

1. 修饰动词：He bought a new computer to play games.他买了一台新电脑来玩游戏。

2. 修饰形容词：She is too tired to continue working.她太累了，无法继续工作。

3. 修饰副词：He speaks English fluently enough to communicate with foreigners.他的英语说得足够流利，可以与外国人交流。

初中英语知识点归纳动词的不定式

初中英语知识点归纳动词的不定式动词的不定式是英语中的重要语法现象之一，学好不定式的用法可以帮助我们更好地理解和运用英语。

本文将对初中英语中动词的不定式进行归纳总结，以便同学们能够更加系统地掌握这一知识点。

一、动词的不定式形式英语中的动词不定式形式为“to + 动词原形”，其中“to”为不定式符号。

不定式的形式通常不受主语的人称和数的限制，一般用作动词、名词、形容词的宾语或补语。

二、不定式作动词的宾语动词不定式可以作为其他动词的宾语，常见的动词有：want, hope, plan, like, love, hate, enjoy等。

例如：1. I want to be a doctor when I grow up.（我长大后想当一名医生。

）2. They like to play basketball in their free time.（他们闲暇时喜欢打篮球。

）三、不定式作名词的补语不定式可以作为某些动词后的名词的补语，常见的动词有：be, become, seem, feel, appear等。

例如：1. Her dream is to become a famous singer.（她的梦想是成为一名著名的歌手。

）2. It seems to be a nice day for a picnic.（今天似乎是个适合野餐的好天气。

）四、不定式作形容词的补语不定式可以作为某些形容词后的补语，常见的形容词有：happy, sad, glad, ready, willing等。

例如：1. He is happy to help others.（他乐意帮助别人。

）2. I am ready to take on the challenge.（我准备好迎接挑战。

）五、不定式作目的状语不定式可以作为目的状语，表示动作的目的或者用途。

常见的动词有：go, come, try, learn, study等。

动词不定式知识点详解(初中英语专项复习)8

动词不定式知识点详解（初中英语专项复习）考点1. 动词不定式作宾语（1）在动词want，hope，would like，decide，wish，choose，try，need等后常用动词不定式作宾语。

（2）think，find，feel，make后连接it + adj. + to do sth.構成“形式宾语+真实宾语”的用法。

考点2. 动词不定式作宾补（1）带to的不定式作宾补的动词有：ask，like，would like，teach，tell，want，help 等。

（2）省掉to的不定式作宾补的动词有：let，make，hear，see，notice，have，watch 等。

注：省掉to的不定式的句子变被动语态时，需要还原to。

考点3. 动词不定式作主语（1）动词不定式常用作句子的主语时，谓语动词用单数形式：To do sth. +谓语动词+adj. / n.。

（2）常用it作形式主语，而将不定式放在句子后面：It +谓语动词+adj. / n.+ to do sth.。

考点4. 动词不定式作定语（1）及物动词不定式作定语放在被修饰词之后：名词或代词+to do。

（2）若构成的不定式的动词为不及物动词时，其后加上相应的介词：名词或代词+to do （介词）。

考点5. 动词不定式与疑问词连用（特殊疑问词+动词不定式）在宾语从句中，若主从句的主语一致时，宾语从句可简化为“疑问词+to do sth.”，不定式可以和疑问代词（who，whom，whose，what，which）或疑问副词（when，where，how，why）连用构成不定式短语。

它们可以在句中作主语、宾语和表语。

巧记常见动词：学会忘记有难处（learn，forget）想知道就别来劝告（wonder，know，advise）展开讨论教人对付（show，discuss，teach）弄清楚才决定告诉（find out，decide，tell）When to start is not decided yet. 还没决定什么时候开始。

动词不定式知识点详解(初中英语专项复习)4

动词不定式知识点详解（初中英语专项复习）一、Infinitives after nouns名词+动词不定式1：不定式做后置定语，通常位于被修饰的名词之后。

如果不定式的动词是及物动词vt的话,则要带上相应的宾语；不及物动词vi的话,则不需要宾语。

1. I have a lot of work to do.我有一堆工作要做。

2. I need a pen to write with.我需要一支笔去写作。

二、Infinitives as subject动词不定式当主语2：不定式做主语的时候，通常置于句首,用于说明概念或动作。

To get up early is good for our health.早起对我们身体好。

To master a language is not an easy thing.教一门语言并不是件容易的事。

3：常见的用it作形式主语的句型有：It takes / took + sb. +一段时间+ to do sth.It takes me 30 minutes to walk to school.我每天华半小时走路上学。

4：不定式的复合结构:It was very hard for him to do the job.很难让他做干这个事。

It is clever of him to work hard at English.努力学英语的他真是明智了。

归纳句型：It is/was + adj. +___/__ sb. +__________ 辨别It's for sb.和It's of sb.① 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,, impossible等：It's hard for him to learn English well.学好英语对他来说是很难的。

① 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。

中考英语语法动词不定式知识点

中考英语语法动词不定式知识点以下是中考英语语法中常见的动词不定式知识点：1.动词不定式的结构：- to + 动词原形：例如 to eat, to sleep。

- 动词原形：用于口语中，或在一些情况下省略 to，例如 Let me go。

2.动词不定式作主语：- It + be + 形容词 + to do：例如 It is important to study hard.- To do 表达强调：例如 To meet her is my dream.3.动词不定式作宾语：- 动词 + to do：例如 I want to play basketball.- 动词 + 不定式，如希望 hope, plan, decide, promise等：例如 I hope to see you again.4.动词不定式作补语：- 动词 + 名词/形容词 + to do：例如 She is happy to help her friend.- 动词 + 不定式，如 want, wish, like, love, hate, prefer等：例如 I want you to clean your room.5.情态动词后接动词不定式：- can, could, may, might 后接动词不定式表达能力或可能性。

- must, have to, need to 后接动词不定式表达必要性或需要。

6.动词不定式的否定形式：- not + to do：例如 I decided not to go to the party.- 动词 + not to do：例如 She asked me not to tell anyone.7.动词不定式形式的变化：- 过去式：to do → to h ave done- 完成式：to do → to be done- 进行式：to do → to be doing以上只是动词不定式的一些基本知识点，但需要根据具体语境和句子结构进行灵活运用。

初中英语语法动词不定式考点考什么整理

初中英语语法动词不定式考点考什么整理英语科目的学问点许多、很杂乱，这就需要同学仔细、认真的对学过的学问点进行梳理与整合，形成一套完整的学问体系。

分类英语语法，语态，词组等等。

下面是我给大家带来的学校英语语法动词不定式考点，欢迎大家阅读参考，我们一起来看看吧!学校英语语法大全：动词不定式作宾语不定式作宾语1) 动词+ 不定式afford aim appear agree arrange ask be decide bother care choose come daredemand desire determine expect elect endeavor hope fail happen help hesitate learn long mean manage offer ought plan prepare pretend promise refuse seem tendwait wish undertake举例：The driver failed to see the other car in time.司机没能准时观察另一辆车。

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, help intend like, love, need prefer, prepare, promise, want, wish…I like to keep everything tidy.我喜爱每件东西都保持干净。

I like you to keep everything tidy.我喜爱你年使每件东西都保持干净。

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。

初中英语不定式知识点归纳

初中英语不定式知识点归纳随着经济全球化发展,英语在全球范围内被广泛使用,成为国际通用语, 具有国际化。

所以初中的同学们学好英语是很有必要的。

以下是店铺分享给大家的初中英语不定式知识点，希望可以帮到你!初中英语不定式知识点一、用作主语直接把动词不定式置于句首的情况不多，多数情况用it 作形式主语，把真正的主语——动词不定式置于句末，特别是不定式短语较长时。

动词不定式作主语，谓语动词用第三人称单数形式。

带疑问词的不定式短语作主语常置于句首，复合不定式结构作主语常置于句末。

如：1. I t is our duty to try our best to deal with these problems.2.The head teacher said it was necessary to talk with his mother.3.How to learn English well is important.4.To see is to believe.(眼见为实;百闻不如一见)动词不定式作表语，常说明主语的内容、性质、特征。

如：1.The best way is to join an English club.2.The first thing is to listen to the teacher carefully.三、用作宾语1. 可以接带to 的动词不定式作宾语的动词主要有：要求选择同意(ask, choose, agree)，期望决定学习(expect, hope, decide, learn) ，宁可假装知道(prefer, pretend, know) ，希望想要愿意(wish, want, would like / love)。

如：1)We decided to talk to some students about why they go there.2)He prefers to eat white bread and rice.3)Id love to visit Mexico.2. 动词decide, know, learn, show, teach, tell...，介词结构on...可用疑问词带to 的不定式短语作宾语，但why 后面的不定式不带to 。

九年义务初中英语动词不定式基础知识点归纳总结

1. 动词不定式的构成：动词原形前加to。

例如：to study（学习）、to eat（吃）。

2. 作为动词的宾语：动词不定式可以作为一些动词的宾语，例如：want（想要）、like（喜欢）、need（需要）。

例如：I want to go shopping（我想去购物）。

3. 作为名词的补语：动词不定式可以作为名词的补语，常见于以下几种结构：it is + adj. + to + 不定式；it is + 名词 + to + 不定式；it is + 不定式 + to + 名词。

例如：It is important to learn English well（学好英语很重要）。

4. 作为形容词的补语：动词不定式可以作为一些形容词的补语，用来修饰主语。

例如：I am happy to see you（见到你我很高兴）。

5. 作为状语：动词不定式可以作为状语来修饰动词、形容词或副词。

例如：She went to the park to play basketball（她去公园打篮球）。

7. 作为条件状语从句的谓语：动词不定式可以作为条件状语从句的谓语。

例如：If you want to succeed, you must work hard（如果你想成功，你必须努力工作）。

8. 作为双宾语：动词不定式可以作为一些动词的双宾语。

例如：He gave me a present（他给了我一份礼物）。

9. 作为目的状语从句的谓语：动词不定式可以作为目的状语从句的谓语。

例如：She went to the supermarket to buy some groceries（她去超市买些杂货）。

10. 不定式的否定形式：把not放在to之前构成否定形式。

例如：I decided not to go（我决定不去）。

以上是九年义务初中英语动词不定式基础知识点的归纳总结。

需要注意的是，在不同的语境中，动词不定式的用法和意义可能会有所变化。

初中英语语法：动词不定式详细讲解

初中英语语法：动词不定式详细讲解动词不定式1、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T o 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2、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。