牛津译林版八年级英语上册动词不定式的用法
牛津译林版初中英语动词不定式专题
动词不定式专题一.概念：由to＋动词原形构成，有时to 可以省略。
不定式是一种非限定性动词。
而非限定动词是指那些在句中不能单独充当谓语的动词，可分为不定式，动名词，现在分词和过去分词。
动词不定式在句中可以作句子除谓语之外的任何句子成分。
批注：动词不定式是非谓语动词的一种，它没有人称和数的变化，在句子中不能独立作谓语，但它仍保持动词的特点，既可以有自己的宾语和状语。
二.结构：肯定：to + V.原或者(to)+ V.原否定：not/never + (to) + V.原eg.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.三.用法：动词不定式可以在句中充当的成分有：主语,宾语,补语,表语,定语,状语。
1.作主语To hear your voice is so nice. It is so nice to hear your voice.To study hard is very important. It is very important to study hard.注意：不定式作主语时，通常用it作形式主语，把真正的主语放在后面。
1）It +be + adj. +for/of sb. to do sth.for: adj.多为描述不定式行为的特征（important/ necessary / interesting 等.）of: adj. 多为描述人的品质特征（kind / nice / friendly / wise / foolish 等.）eg. It is easy for her to learn English well.It is clever of you to solve the problem.2) It takes sb. some time to do sth.It takes me three hours to finish the homework every day.我每天花去三个小时完成家庭作业。
U5情态动词may和不定式2022-2023学年牛津译林版八年级英语上册
8AU5语法情态动词may和不定式第一部分：情态动词may一、may的用法may是情态动词，因此具有情态动词的特点：第一，情态动词不随人称的改变而改变，没有三单形式；第二，情态动词后加动词原形。
二、may的句型肯定句：情态动词+动词原形He may be at home.They may be having a class now.（may be doing）否定句：情态动词的否定句直接在情态动词后加notHe may not be hungry.一般疑问句：情态动词的一般疑问句直接将情态动词提前。
May I borrow the bike?三、may的考点（1）may表示推测，意为可能，用于肯定句和否定句，例1. He may be at home.例2. The little girl may not be so careless.（2）may表示请求许可，意为可以，常用于疑问句，否定回答不用may not，用mustn’t例1.---May I help you?----Yes, please./No, thanks.例2. ---May I go out with my friends, mum? ----Yes, you can./No, you mustn’t.另外May I help you?可以用于售货员询问顾客的场景。
用”I would like”或”I need” 来回答。
例1.---May I help you，Mrs. Li?---I want to buy a dress for my daughter.四、拓展（1）May I help you?的同义句除了may之外，还可以用might，can和could。
例Can I help you?=May I help you?（2）maybe和may的转换例1.Maybe he is not interested in music. = He may be not interested in music.例2.Maybe he will come to the show.=He may come to the show.（3）may表示祝愿：例1.May the year ahead bring you good luck, fortune, success and lots of love.祝愿即将到来一年为你带来好运、财富、成功和许多的爱。
Unit6知识点讲义牛津译林版英语八年级上册
Unit 6Words1.yeah 是的近义：Yes 反义：No2.hen (n) 母鸡cock 公鸡chick 小鸡chicken 鸡肉3.yummy (adj) 美味的近义：delicious/nice4.feather (n) 羽毛（不可数）as light as a feather 轻如鸿毛5.wide和broad是同义词，在表示街道、河流多宽时，两个单词都可用。
如：They came to a wide river.(他们来到一条大河边)The river is 30 feet broad.(那条河有三十英尺宽)当谈到某样东西有多宽时要用wide。
如：The door is three feet wide.(门有三英尺宽)指胸部肩部宽时多用broad表示。
如：He was tall, broad-shouldered, very handsome.(他高个子，肩很宽，很英俊)6.type (n) 种类（v）打印a type of...一种... 近义：a kind of...7.nature (n) 大自然，自然界natural (adj) 自然界的naturally (adv) 天然地in nature 本质上8.provide (v) 提供provide sth with sb /provide sb for sth 给某人提供某物9.cover (n) 庇护所/遮盖物/封面（v）遮蔽cover...with 用...覆盖be covered with 被...覆盖10.round (adv) 周围；转过来（adj）圆形的（prep）环绕；围绕all year round=all the year round 全年around （adv）大约；到处；在附近（prep）在...周围11.while (conj) 然而/当...时候近义：however12.easily (adv) 容易地反义：hardeasy (adj) 容易的反义：difficult13.cent (n) 分；分币dollar 美元pound 英镑14.in order to 为了in order not to 以免15.space (n) 空间spaceman 宇航员make space for ...为...让出空间16.lead (v) 领导，带领leader (n) 领导人leading (adj) 主要的lead to 导致lead sb to do sth 带领某人去做某事17.fish (v) 捕鱼（n）鱼/鱼肉种类可数/鱼肉不可数鱼（条数）：单复数同型18. 阻止某人做某事：stop/prevent sb (from) doing sthkeep sb from doing sth19.society (n) 协会；社会social (adj) 社会的medical society 医学协会20.r ecord (v) 记录（n）记录/纪录21.c hange (n) 改变，变化/零钱（v）改变change ...into 改变成... change one’s mind 改变某人的想法22.t ourist (n) 旅行者，观光者近义：traveler/visitor23.c ount (v) 计算总数；数数countable (adj) 可数的count down 倒数24.describe (v) 描述description (n)describe sth to sb 向某人描述某物describe...as 把...描述成25.importance (n) 重要性important(adj) 重要的the importance of ... ...的重要性Welcome to the UnitP56-571.at the market 在市场上（传统摆摊那种）on the market 在市面上（等待出售）in the market 在综合市场/超市里面2.encourage (v) 鼓励，鼓舞反义：discourageencouraging (adj) 鼓励的encouraged (adj) 受鼓舞的encouragement (n) 鼓励encourage sb to do sth 鼓励某人去做某事3.broad wings 宽阔的翅膀wide和broad是同义词，在表示街道、河流多宽时，两个单词都可用。
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。
英语中不定式（todo）的6种成分和2种独立用法
英语中不定式（todo）的6种成分和2种独立用法非谓语是英语学习的重点也是难点，很多同学对这个语法知识一直是处于比较懵的状态。
其实只要掌握非谓语所充当成分的用法就可以运用自如了。
非谓语，顾名思义就是不做谓语的动词的变化形式，即to do ，doing，done。
除了谓语，句子成分中还有主语、宾语、表语、宾语补足语、定语和状语。
下面看看不定式(to do)充当这6种成分的用法：一、不定式作主语1.To see is to believe. （这种情况不常用）2. It is important to learn English well.It 是形式主语，真正的主语是 to learn English well. 这种用法是常用的而且是考点！考点！考点！二、不定式作表语:常说明主语的内容、性质和特征或表动作将要发生。
1. My job is to keep the children safe.2.My task is to type the article.三、不定式做宾语1.He prefers to eat white bread and rice.2.He wants to play football.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：I find it difficult to remember everything.常接动词不定式作宾语的动词有：（需要记住）agree, afford, appear, ask, attempt；care, choose, claim；dare,decide,demand,deserve,determine；expect, fail, get, guarantee；hate, hesitate, hope, hurry；intend, learn, manage, offer,plan, prepare, pretend, promise；refuse, seem, tend, threaten；want, wish 等四、不定式做宾语补足语1.I'd invite her to have dinner at my house.2 . We should allow the children to choose their own clothes.Note 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)。
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。
牛津译林版八年级上册 知识点+同步练习(带答案)
8.(not go) near the tigers!They may hurt you.o15daoM To
9.Would you please(protect) our forests by doing little things?
He doesn't know what to do next.他不知道下一步做什么。
1 .-Do you have any places for the coming vacation? Sure.We decideFrance in July.
A.visit B.visiting C.visited D.to visit
10.At the(begin) of the concert，Tan Dun played a piece of music with water.
三、单项选择。
( ) 1.一Daniel，do you know that bees never get lost?
一Yes.Bees always rememberthe same way as they went.
4.This book is much(厚) than that one.I'll take that one.
5.The(失去) of living areas makes tigers have nowhere to live.
6.People sometimes(猎杀) tigers for their fur.
No，you mustn't.不，你不可以。
1.一Will Anna go to the movies with us tonight?-Shego，but I'm not sure.
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。
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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。
e.g: ① I don’t know What to do next．②Can you tell me how to get to the hospital?EX: (2012) Lisa is a little poor at Chinese．I think she needs it every day．A. practise to speakB. to practise speaking C . practise speaking二，动词不定式作主语。
e.g: To help others is our duty．帮助他人是我们的责任。
【注意】不定式作主语时，在多数情况下，常用it作形式主语，而把不定式放在后面To 1earrl English well is very important for us=It is very important for us to leam English well.It is very difficult for me to work out the Maths problem.三，动词不定式作表语。
My wish is to be a basketball player．My sister’s dream is to be a nurse．四，动词不定式作定语。
I have two new books to read．Do you have anything to say for yourself?EX:动词填空1.Though(尽管)he worked hard, he failed (pass)the driving test again．2.It’s dangerous for kids (play)football in the street．3.Be careful (not hurt) yourself．4.Keep (try)．You are sure (get)a good result．5.I want (make)a fruit salad myself．6.As soon as(一…就)he saw me，he stopped (talk)to his friend and came over．7.Please remember (stick)the stamp on the envelop(信封)．lie is preparing (visit)the World Park this Sunday．9.As soon as he arrived home. he couldn’t wait (drink)a glass of water．10.Your mother and I are looking forward to (see)you．11.Jack decided (not order)the dishes in that restaurant．I2.These days I (save)money to buy a new computer．13.Where will you choose (sit) on the bus?14.Every student needs (get)to school before seven．15.Can you tell me where (buy)such a good hat?五，动词不定式表示目的【知识解析】在英语中表示做某事的目的，常用动词不定式和in order to结构，但in order to 表示目的比动词不定式更加的正式。
其固定结构为“to+动词原形”和“in order to +动词原形”。
to后面的成分是目的状语。
e.g.He came here to borrow my bike.The rich woman spent all her time and money in order to be well dressed.A. 用“in order to +动词原形”比“to+动词原形”作目的状语时语气较强而且文体较正式。
e.g. People there killed many lions in order to protect the deer.B.“in order to+动词原形”通常可以放在句首，使其表示的目的更加明显。
e.g.In order to improve my English, I stay up every day.EX:( )①The price are rising too high. So the government has to do something it.A. stopB. stoppedC. to stopD. stopping( )②energy ,turn off the hot water after you take a shower.A.SaveB. SavingC. SavedD. In order to save( )③Mum makes me eat an apple every day the doctor away.A.keepsB.is keptC.to keepD.kept（二）使用“动词+宾语+不定式”结构【知识解析】英语中可以把一些动词与宾语和动词不定式放在一起，不定式结构做宾补。
具体结构为“动词+宾语+to do sth.”，否定式在动词不定式的前面加not，即：“动词+宾语+not to do sth.”。
A.带to的不定式作宾补可以用带to的不定式作宾补的动词常有：ask, tell, order, invite, beg, get, allow, wish, want, encourage, advise, warn等。
e.g. The teacher asked us to finish our homework.She wanted him to sing for her friends.B.不带to的不定式作宾补动词不定式在使役动词(make, let , have)或感官动词(feel, listen to , hear, look at, see, watch, notice)之后作宾补时不定式需要省to。
为了便于记忆，我们可以这样记“一感”（feel）、“二听”（listen, hear）、“三让”（let, make, have）、“四看”（look at, see, watch, notice）。
e.g. I felt someone open my door.Please listen to me sing the song again.You must watch me carefully do everything.【提醒】感官动词后既可跟省略to的不定式作宾补，也可跟现在分词作宾补。
其区别是：前者强调动作的全过程或经常性；后者则强调动作在进行（片段）。
e.g.I heard her sing.I heard her singing.C.带to或不带to的不定式作宾补. 在动词help后可以跟带to的不定式作宾补，也可以跟不带to的不定式作宾补。
e.g.He often helps me (to) clean the room.EX:( )①Our teacher told us carefully in class.A.listenB.to listenC.listenedD.listens( )②Mr Li asks the students in the river,because it’s too dangerous.A.swimB.to swimC.not to swimD.to not swim( )③Colors can change our moods and make us happy or sad.A.feelB.to feelC.feltD.feeling( )④--Is Wei Fang good at singing?--Yes, she is. We often hear her in the next room.A.to singB. singsC.singD.singing。