初二英语知识点归纳：动词不定式

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初二英语不定式用法梳理

初二英语不定式用法梳理不定式用法口诀动词不定式基本结构：to+ do否定：not + to do作用：它具有名词、形容词和副词三大特点。

不做谓语。

1 不定式作宾语：决定（decide）同意（agree）计划（plan），主动提供（offer）希望（hope、wish），努力（try）想要愿意（wish, want, would like / love）。

★动词feel, find, make, think等后面，可以用it作形式宾语代替真正的宾语——动词不定式，句子结构是...feel / find / make / ... it+adj. / n.+to do...。

如：I find it difficult to remember everything. (p.98)2，不定式作宾语补足语：give、bring、lend，pass、show、send， leave、sell、tell， teach, 要用to另有buy、make，read和cook，要用for.3 特殊宾补：七个感官三使役，宾补要把to甩去；省“to”的不定式作宾语补足语：一感，二听，三让，四看，半帮助【诠释】一感：feel；二听：hear，listen to；三让：make，let，have；四看：see，notice，watch，observe 再加一个look at；半帮助：help。

4 主语it来帮忙，自己后面把身藏；不定式，作主语，行为多是指"具体"。

结构常用"主系表"，谓语用单则就好。

To learn English well is not easy.To say something is one thing，to do it is another．不定式，作主语，若太长，往后移；形式主语（it）去代替，免去头重无根底。

It's good for you to do some running in the morning．It's very nice of you to invite me．It cost me twenty yuan to buy the dictionary．5 疑问词后接上它，简化宾从人人夸（why后面的不定式不带to）；6 不定式做表语，跟在系动词后面。

初中英语知识点归纳动词不定式的基本用法

初中英语知识点归纳动词不定式的基本用法动词不定式是英语中的一种非谓语动词形式，通常由动词原形加上to 构成。

它具有名词、形容词和副词的性质，可以在句子中充当主语、宾语、表语和补语等成分。

本文将对动词不定式的基本用法进行归纳总结。

一、动词不定式作主语动词不定式作主语时，常常位于句首，具有强调的作用。

常见的句型有：1. To learn English well is my goal.学好英语是我的目标。

2. To drink eight glasses of water a day is beneficial to our health.每天喝八杯水对我们的健康有益。

二、动词不定式作宾语动词不定式可以作及物动词的宾语，常常跟在动词后面。

常见的动词有：1. want, hope, expect, plan, decide, promise, agree 等。

例如：I want to go to the park this weekend.我想这个周末去公园。

2. advise, encourage, allow, enable, force, teach 等。

例如：His teacher encourages him to learn new words every day.他的老师鼓励他每天学习新单词。

三、动词不定式作表语动词不定式可以作表语，说明主语的身份、职业、愿望等。

常见的句型有：1. His dream is to become a doctor.他的梦想是成为一名医生。

2. Our aim is to win the game.我们的目标是赢得比赛。

四、动词不定式作补语动词不定式可以作及物动词的宾语补语和形容词的补足语。

常见的动词有：1. make, let, see, hear, watch, feel, notice, observe 等。

例如：She made her son do his homework.她让她的儿子做作业。

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.

八年级英语动词不定式用法梳理

八年级英语动词不定式用法梳理动词不定式是由“不定式符号to+动词原形”构成的一种非谓语动词结构;有些动词不定式不带to,动词不定式可以作句子的主语、表语、宾语、定语、补语、状语或单独使用;不定式保留动词的某些特性,可以有自己的宾语、状语等;动词不定式和它后面的宾语、状语等一起构成短语,叫作不定式短语;一、用作主语多数情况用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;疑问词+不定式短语作主语可置于句首,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. head teacher said it was necessary to talk with his mother. to learn English well is important.see is to believe.眼见为实；百闻不如一见二、用作表语动词不定式作表语,常说明主语的内容、性质、特征;如： best way is to join an English club.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：1We decided to talk to some students about why they go there. 2He prefers to eat white bread and rice.3Id 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;如：1Could you please tell me where to park my car2It gives advice on what to do in lots of different situations.3.动词feel, find, make, think等后面,可以用it作形式宾语代替真正的宾语——动词不定式,句子结构是...feel / find / make / ... it+adj. / n.+to do...;如：4. 感知动词like, love, know等一般不用进行时态;5.后接动词不定式或ving形式作宾语,意思差别较大的动词有forget, remember等;后接不定式作宾语,表动作尚未发生；后接ving形式作宾语,表动作已经发生;stop to do停下来做另外一件事,to do是目的状语；stop doing停止做、不做当前这件事,doing 是宾语;try to do尽力做,try doing试试看；go on to do接着做另外的事,go on doing继续做原来的事;如：1When I left home, I forgot to bring it with me.2I stopped using them last year.四、用作定语1.句子的主语或宾语是动词不定式的逻辑主语,不定式与其所修饰的名词、代词等存在逻辑的动宾关系.1I have so many clothes to wash today.2I can’t think of any good advice to give her.3We have no houses to live in.2.动词不定式所修饰的名词是place, time, way等时,不定式与这些名词呈现出动状关系或同位关系;如：1He needs time to do homework.2 He wants to know the best way to travel around the city.3.在“there be...”句型里,句子的主语是动词不定式动作的对象：1There’s just so much to see and do here.2... but there are still many things to do the五、用作宾语补足语1.带to的动词不定式作宾语补足语的动词主要有：要求允许提议ask, allow, , advise,期望邀请鼓励expect, , invite, encourage,教导告诉想要teach, tell, want,等待希望愿意wait for, wish, would like / love;如：1Id invite her to have dinner at my house.2 We should allow the children to choose their own clothes.2.动词不定式作补语,在主动语态句里不带to,被动语态句里带to时多数动词是感官动词和使役动词,包括四“看”：look at, observe, see, watch,三“让”：have, let, make,二“听”：hear, listen to,一“感觉”：feel,一“注意”：notice;如：1This picture makes me feel excited2We saw Liu Yu play baseball last week.后接动词不定式作补语,to可带可不带;1 they can help you to learn English.2Using email English helps you write quickly.六、用作状语1.目的状语,置于句首或句末,置于句首时常表示强调;如：1In order to catch the early bus, she got up very early.2A group of young people got together to discuss this question.3She came to this city to visit her daughter.2.原因状语,多见于“sb.+be+adj.+to do...”结构句中;如：1 I feel very lucky to have him.2 he ran out of money to buy old bikes.3.结果状语,多见于“too...to”,“enough to...”结构句中;如：1 I’m too tired to do it well.2The room is big enough for three people to live in.七、动词不定式的复合结构动词不定式的复合结构是“for / of sb. to do sth.”,for / of引出不定式动作的逻辑主语;这种结构在句子中可以作主语、宾语、表语、定语、状语等;不定式复合结构的介词用for还是of,主要决定于前面形容词的性质;一般说来,of前面的形容词是careful, clever, foolish, good, kind, nice, wise等,既说明人的特性,又说明不定式动作的特性;for前面的形容词是dangerous, difficult, easy, hard, heavy, important, interesting, necessary等,一般说明不定式动作的特性,前面如果是名词用for;如：’s a good idea for parents to allow children to study in groups during the evening.’s wise of him to do it well.3Is it interesting for the baby to play with a pet dog 八、带疑问词的不定式短语动词不定式前面可以带疑问代词what, which, who或疑问副词how, when, where, why等;这种结构起名词的作用,在句子里用作宾语、主语、表语等,或者单独使用;要注意的是,why后面的不定式不带to;如：1.用作句子的成分;1I don’t know what to try next. 作宾语2Where to go is not decided yet.作主语2.单独使用时相当于一个特殊疑问句;1What to do next=What will we / you do next2Why go there=Why do we / you go there九、动词不定式的否定式不定式的否定式是not / never to do...,不带to的不定式的否定式是not / never do...如：decide not to talk to each other.parents tell him never to play soccer in the street.随堂练习一动词填空;’m going to l isten to the radio. Please ____not talkany more. 2. The students ____dotheir homework from four to five this afternoon.3. The students ____bebusy now. They ____havean English exam next Monday.4. Mary must ____lookafter her little sister because she is too young.5. ____heyou waiting for a bus now6. This coat is very cheap. I ____takeit now.7. I’ll tell him about it when he ____comeback.8. Could you tell me ____can getto No 3 Middle school.9. He ____ said that the new teacher ____givethe students an English lesson now.10. I ____milka cow three times.11. Edison’s mother ____teachhim herself.12. He ____watchTV once a week.13. Don’t speak loudly. The baby ____sleep.14. I won’t go out ____finishmy homework.15. Could you tell me when the train ____arrive.16. I often hear the sound of children ____readEnglish in the room.asked me ____helphim with his English this evening.18. Their work is ____cleanthe streets.19. Did he enjoy ____workin China.20. We will stay at home if it _____raintomorrow.21. Be quiet The boy ____singan English song.22. _____ you _____ your homework yetstart23. Who ____teachthem English last term.24. There _____bea telephone call for you just now.25. Please keep everything ____clean.26. Peter won’t have a rest until he ____finishhis work.27. I watched TV, so I ____forget_____domy homework.28. When I ____walkalong the river ,I met my friend,Tom.29. When Mother came ,the little girl ____playwith a cat.30. When I was five,I _ __ _getto know the earth ____movearound the sun.31. They _____seea boy _____fallinto the river while they ____passit yesterday.32. _____studyhard at your lessons andnot talkin class.33. You _____havebetter _____not eatthe bad food.34. While I ___do my homework,my parents __watchTV.35. He ____ not finish____readthe book.36. I ____getup very early this morning. I ____readEnglish now.37. He ____hurryto school every morning.38. Our teacher ____not stop____workuntil eleven o’clock last night.39. If he ____knowit ,he ____bevery happy.40. It ____takeus half an hour ____readEnglish every day.41. The children ____runin the street now.42. There ____betwo meetings tomorrow morning.43. My father ____sleepwhen I ____getup this morning.44. When I ____goto see Tom, he ____not writeanything.45. Sorry, when you ____callme, I ____thinkand ____not hearyou.46. Mr. Green ____leavehis notebook at home yesterday.47. I ____wantto buy a new coat next Sunday.48. His father ____readnewspaper when I got there.49. It ____befive years since he ____buythe motorbike.50. We found it was very difficult ____geta car.are so glad ________ hear the news.saw him ________ cross the road safely and ________ run away. can’t make him ________ do what you want.don’t know where ________ meet him.makes you ________ think I’m a farmeryou see him ________ go upstairsis better ________ put your money in a bank.is difficult for the boy ________ swim across the river.let him ________ go early as he wanted ________ meet his uncle at the station.you help me ________ move the bedhe doesn’t know, how ________ use the recorder, you’d better ________ show him.is the last one ________ leave the office every day.’s bad manners ________ shout in public.boy is old enough ________ dress himself.is too ill ________ go to school.二选择题1. Tell him ___ the window.A. to close notB. not to closeC. to not closeD. not close2. Paul doesn't have to be made ___. He always works hard.A. learnB. to learnC. learnedD. learning3. You'd better _______the story in Japanese.A. sayB. speakC. tellD. talk4. The patient was warned ___ oily food after the operation.A. to eat notB. eating notC. not to eatD. not eating5. ---- I usually go there by train.---- Why not ___ by boat for a changeA. to try goingB. trying to goC. to try and goD. try going6. There are some books on the floor, would you like ________A. to pick them upB. to pick up themC. pick it upD. pick up it7. She is very ill, let's _______a doctor at once.A. to wake upB. send forC. to pay forD. pay for8. I want ________a teacher when I grow up.A. to beB. toC. beD. being9. It's cold here. You'd better ______ your coat.A. not take outB. not to take downC. not take offD. not to take away10. My mother told me ________more water.A. drinkingB. drankC. to drinkD. drink。

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。

初二不定式知识点归纳总结

初二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，由to + 动词原形构成。

在句中可以作主语、宾语、表语、定语、状语等成分，是英语语法中重要的一部分。

在初二阶段，学生需要掌握不定式的基本用法和常见结构。

本文将对初二学习不定式的知识点进行归纳总结。

一、不定式作主语不定式作主语时，常用句型为：It + be + 形容词 + 不定式。

例如：1. It is important to learn English well. 学好英语很重要。

2. It is necessary to finish the homework on time. 及时完成作业是必要的。

二、不定式作宾语不定式可以作为动词的宾语。

常见的动词有：hope, want, like, love, need, plan等。

例如：1. I want to go shopping with my friends. 我想和朋友们去购物。

2. She needs to study hard for the exam. 她需要为考试努力学习。

三、不定式作表语不定式作表语时，常用句型为：主语 + be + 不定式。

例如：1. His dream is to become a doctor. 他的梦想是成为一名医生。

2. The goal of our project is to promote environmental protection. 我们项目的目标是促进环境保护。

四、不定式作定语不定式可以修饰名词或代词，起到定语的作用。

例如：1. I have a lot of books to read. 我有很多书要读。

2. She is a girl to trust. 她是一个值得信任的女孩。

五、不定式作状语不定式可以作为动词的状语，表示目的、结果、原因等。

例如：1. She went to the library to borrow some books. 她去图书馆借书。

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。

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。

初二英语动词不定式讲解包含口诀

初二英语动词不定式讲解动词不定式的基本形式是“to+动词原形“, 有时可以不带to.动词不定式没有人称和数的变化, 在句子中不能作谓语。

在句中可以作主语、表语、宾语、宾语补足语、定语和状语。

一、作主语，可以用it代替，it叫形式主语，动词不定式放在后面叫真正主语1．To learn a foreign language is not easy. It is not easy to learn a foreign language.2. It’s dangerous to drive very fast.二、如果宾语太长，可用it作形式宾语，构成“主语+ 谓语+ it + 宾语不足语(名词或形容词) + to do sth”结构，谓语动词常为find、think、feel等。

I found it difficult to stop him. 我发现拦截他很困难。

三、常可接动词不定式作宾语的动词有：agree(同意), hope(希望), decide(决定), need(需要), mean(打算), wish(希望), fail(失败),want(想要), begin(开始), would like(想要等。

Ask(请求）, beg（乞求), leave, like, love, hate(讨厌）, prefer（宁愿）, order（命令）, teach, （教）tell,（告诉）believe（相信）, find,（找出）know,（知道）want,（想要）think,（认为）understand,（明白）后面跟动词不定式的动词口诀有：三个希望两答应（wish hope want promis agree)两个要求莫拒绝（ask beg refuse )想要明白跟知道（would like understand know )教会告诉要相信（teach tell believe )找出爱恨区别点（find love hate )He has decided to go to the countryside. 他已决心去乡下。

初二英语知识点归纳动词不定式

初二英语知识点归纳：动词不定式初二英语知识点归纳：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。

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。

动词不定式知识点详解(初中英语专项复习)5

动词不定式知识点详解（初中英语专项复习）考向一动词不定式的结构和句法功能动词不定式的结构动词不定时的构成：不定式的基本形式为：to+动词原形，有时可以不用to，这里的to 是不定式符号，本身无词义，动词不定式的否定形式是not+（to+）动词原形。

肯定式：to + 动词原形It’s nice to meet you.(2)否定式：not to + 动词原形He told me not to leave this room(to是不定式符号，无意义，有时可以不带)动词不定式的句法功能不定式作主语动词不定式作主语时，常用it作形式主语，而将真正的主语放在句末其结构为：①It is +adj.+for/of sb.+(not)to do sth.意为＂做某事对某人来说是……＂。

①It takes sb.+some time+to do sth.意为＂做某事花费某人多长时间＂如：To learn English well is useful.→ It is useful to learn English well.It’s important for us to protect the environment.注意：在kind，good，nice，clever等表示人的品质的形容词后，不用for而用of。

如：It's very kind of you to help me. 你帮助我真是太好啦。

不定式作宾语有些谓语动词后只能用不定式作宾语，常见的这类词是表示命令、打算或希望的，如：would like, like, want, wish, hope, decide, plan, expect等。

如：Would you like to see a film this evening? 你今晚想去看电影吗？①在find, think后跟不定式作宾语时，常用it代替，而将真正的宾语放在后面。

如：I find it easy to read English every day.3.不定式作宾语补足语tell, ask, want, allow, warn, advise, invite, get, encourage后常跟动词不定式作宾语补足语。

八年级上专题复习—动词不定式

动词不定式及重点短语和句型一、常使用动词不定式的短语表1).带"to" 的有1..can’t wait to do sth.迫不及待要做某事2. need to do sth 需要去做某事（注意与need当情态动词用时的区别）3.agree to do sth/with Sb/Sth 同意干/某人/某事4.ask (tell ) sb. (not ) to do sth. 要求/告诉某人(不)做某事5.allow sb. to do sth. 允许某人做某事6.Would like /want (sb.) to do sth. 想要做某事7.Have sth/nothing to do 有…时要做/与…无关8.find it+adj+ to do sth. 发觉做某事…9.Prefer to do sth. rather than do sth.=prefer +V-ing ..to + V -ing 宁愿做某事, 而不愿做某事10.It’s time to do sth.\ It’s time for sth该做某事的时候了11.It’s +adj. for sb. to do sth.12.It’s +adj. of sb. to do sth.做某事对某人来说是…(假如Sb be adj 通顺就用of )13.It’s better /best to do sth.最好做某事14.It takes sb some time to do sth. 某人花时间做某事ed to do sth. 过去常常干....16.do /try one 's best to do Sth 尽力干某事17.change one 's mind to do S th 改变某人的主意干...18.be afraid /terrfied to + V 害怕...干...19.be proud/ the pride to +v=take pride in +V -ing 以...而骄傲/自豪20.be excited to + V /about + n /Pron 对干.、、、感到兴奋21.be surprised to +V /with +n /pron 对干...感到惊奇2).注意以下句型的互换:1. too…to do st h. 太…而不能…2. so +adj. /adv + that(从句) 如此…以致…3.such +（a/an +adj.）+n.+ that(从句) 如此…以致…4.(not) enough (for sb.) to do sth. (对某人来说)做某事(不)够Eg A. The boy is too young to go to school.B. The boy is so young that he can’t go to scho ol.C. He is such a young boy that he can’t go to school.D. The boy is not old enough to go to school. 他太年轻而不能去上学.另外对比介词一起记忆,以下不同的是+名词/代词.1.say "hello to Sb "/"Goodbye " to Sb 向...问好/说再见2.take ... to .... 把..拿...地方去3.bring .... to 把..从..地方带来4.show ..Sth to S b 把...给..看5.send ..Sth to Sw .发射...到/派遣... 去....6.get/be married to+ Sb 与结婚7.lend Sth to Sb 把....借给.... (borrow ..S th .. from Sb从....借进.... )假如把两个宾语位置对调,则上省略"to " 。

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。

八年级语法：动词不定式

八年级语法：动词不定式动词不定式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。

初中英语知识归纳动词的不定式和动名词

初中英语知识归纳动词的不定式和动名词动词的不定式和动名词是英语语法中的两个重要概念。

它们在句子中可以充当主语、宾语、表语、定语等成分，具有多种用法和结构。

本文将系统归纳动词的不定式和动名词的基本用法，并探讨它们在句子中的常见应用。

一、不定式的基本结构不定式是动词的一种形式，包括to + 动词原形，如to eat, to sleep等。

不定式具有以下基本结构：1. 动词不定式作主语：- To learn English is important.- Swimming is my favorite sport.2. 动词不定式作宾语：- I want to visit Paris.- She loves to read books.3. 动词不定式作表语：- My dream is to become a doctor.- The most important thing is to be yourself.4. 动词不定式作定语：- I have a book to read.- We need a place to live.二、动词不定式的常见用法1. 表示目的和意图：- I study hard to pass the exam.- He exercises regularly to stay healthy.2. 接在情态动词后，表示推测、推理：- He must be asleep.- They may have left already.3. 与一些动词连用，构成特定短语或习惯搭配：- Try to do something.- Want to do something.- Need to do something.4. 与某些动词连用，构成复合宾语：- I saw him leave the room.- She heard the baby cry.三、动名词的基本结构动名词是动词的一种形式，在句中作名词用。