初中英语动词不定式用法梳理
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。
动词不定式的用法总结
动词不定式的⽤法总结动词不定式是⾮谓语动词的⼀种形式。
其结构是“to+动词原形”,否定形式为“not+to+动词原形”。
动词不定式在句中不充当谓语,不受主语的限制,但有时态和语态的变化。
⽤法总结⼀、动词不定式做主语1.动词不定式直接做主语。
2.下列特殊句型中的动词不定式做真实主语。
“It is+形容词+for sb.to do sth.”意为“做某事对某⼈来说是……的”。
其中句中的形容词多为描述性的词语,不对⼈或物的品格进⾏评价,如difficult,easy,hard,important,dangerous,impossible等。
“It is+形容词+of sb.to do sth.”意为“做某事对某⼈来说是……的”。
其中句中的形容词⽤于描述⼈的性格、品质,如kind,good,nice,right,wrong,clever,careless,polite,foolish等。
3.“It’s a/one’s+n.(task/duty/job)...+to do sth.”意为“做某事是……的任务/职责/⼯作”。
⼆、动词不定式做表语动词不定式做表语,⼀般⽤于be动词或seem等系表动词后⾯。
主语通常是wish,idea,works,task,job,aim等词。
三、动词不定式做宾语1.⼀些动词必须接动词不定式做宾语,这类动词有want(想要),decide(决定),ask(问、寻求),learn(学习),tell(告诉),teach(教、讲授),hope(希望),plan(计划),refuse(拒绝),expect(期待、期望),afford(负担得起),warn(警告),invite(邀请)等。
2.think,find,feel,make,believe等动词可⽤于“动词+it+形容词+to do sth.”结构。
在此句型中,it做形式宾语,⽽真正的宾语是后⾯的动词不定式。
四、动词不定式做宾语补⾜语1.后接带to的不定式做宾语补⾜语的动词有ask,want,tell,wish,wouldlike,teach,invite,advise,allow,order,encourage,warn等。
初中英语知识点归纳不定式的用法
初中英语知识点归纳不定式的用法不定式是英语中的一种动词形式,由"to"加上动词原形构成。
在句子中,不定式可以作为动词、名词或形容词的补语,具有多种用法。
本文将归纳初中英语中不定式的用法。
一、不定式作动词的宾语不定式可以作为动词的宾语,表示动作或状态的延续。
例如:1. I want to go shopping.(我想去购物。
)2. She likes to sing.(她喜欢唱歌。
)3. They plan to visit Beijing.(他们计划去北京旅游。
)二、不定式作主语不定式可以作为句子的主语,通常用于表示抽象概念或一般情况。
例如:1. To learn a foreign language is important.(学习一门外语很重要。
)2. To eat healthily is good for us.(健康饮食对我们有益。
)3. To be honest is necessary.(诚实是必要的。
)三、不定式作目的状语(表示目的或原因)不定式可以表示某种动作或状态的目标或目的。
例如:1. I bought a new dictionary to improve my English.(我买了一本新字典来提高我的英语水平。
)2. We need to work hard in order to achieve our goals.(我们需要努力工作以实现我们的目标。
)3. He goes to the gym every day to keep fit.(他每天去健身房保持健康。
)四、不定式作结果状语(表示结果)不定式可以表示某种动作或状态的结果。
例如:1. The weather was so bad as to cancel the flight.(天气太糟糕导致航班取消。
)2. He was too tired to continue working.(他太累了不能继续工作。
初中阶段动词不定式用法总结
初中阶段动词不定式用法总结1.作主语:- To swim is my favorite sport. 游泳是我最喜欢的运动。
- To learn English well is important for me. 学好英语对我来说很重要。
2.作宾语:- I want to go to the movies. 我想去看电影。
- She loves to read books. 她喜欢读书。
3.作宾补:- My mother asked me to do the chores. 我妈妈叫我做家务。
4.作目的状语:- I studied hard to pass the exam. 我努力学习为了通过考试。
- They went to the supermarket to buy some groceries. 他们去超市买些杂货。
5.作结果状语:- He ran so fast as to win the race. 他跑得非常快以至于赢得了比赛。
- She studied so hard as to get the highest grade. 她学得非常努力以至于获得了最高分。
6.作方式状语:- I go to school by bike. 我骑自行车上学。
7.作定语:- I have a friend to help me. 我有一个朋友来帮助我。
- This is a place to relax. 这是一个放松的地方。
总之,动词不定式在句子中可以作多种语法成分,如主语、宾语、宾补、状语和定语等。
掌握不定式的用法有助于丰富句子的表达方式。
不定式用法初中不定式的常见用法总结
不定式用法初中不定式的常见用法总结不定式是英语语法中的一种形式,它由“to”加上动词原形构成。
在初中英语学习中,我们经常遇到不定式的用法。
本文将对初中阶段常见的不定式用法进行总结,以帮助同学们更好地理解和运用不定式。
1. 作主语不定式可以作为句子的主语,表达一个抽象的概念或一种动作。
例句:- To learn a new language requires patience and dedication.(学习一门新语言需要耐心和专注。
)- To travel is to broaden one's horizons.(旅行就是拓宽视野。
)2. 作宾语不定式可以作为动词的宾语,常见的动词有:hope, want, plan, decide, expect等。
例句:- She hopes to become a doctor in the future.(她希望将来成为一名医生。
)- We decided to go hiking this weekend.(我们决定这个周末去远足。
)3. 作补语不定式可以作为某些动词的补语,用于补充说明主语的身份、性质、状态等。
例句:- Her dream is to become a famous singer.(她的梦想是成为一位著名的歌手。
)- I am happy to help you with your homework.(我很高兴帮你做功课。
)4. 作定语不定式可以修饰名词,用于进一步说明名词的用途、目的等。
例句:- I need a book to study for the exam.(我需要一本书来复习考试。
)- Do you have a pen to borrow?(你有一支能借给我用的笔吗?)5. 作状语不定式可以作为状语,用于修饰动词、形容词等,表达动作的目的、结果、原因等。
例句:- He ran to catch the bus.(他跑去赶公交车。
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。
初中英语动词不定式用法梳理
1.My job is to teach English. His hobby is to play basketball.三、用作定语⒈不定式作定语时,要置于被修饰的名词之后,作后置定语。
1.目的状语,置于句首或句末,置于句首时常表示强调意思是1)In order to catch the early bus, she got up very early.2)A group of young people got together to discuss this question.3)She 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 is happy to meet you .3.结果状语,多见于“too...to”,“enough to...”结构句中。
如:1) Tom is too excited to say anything.汤姆激动的说不出话来。
2)The room is big enough for three people to live in.五(1)疑问词+不定式结构非常6+1 1 what to do/ v原(干什么)2.how to do it/that/sth (如何做)3.Who/whom to believe/trust( 相信谁) + why + do sth (为什么干某事)4.when to leave/V原(什么时候离开/做某事)why not do sth(为什么不干某事)5.where to go(去哪儿) = Why don’t you do sth 为什么不6.which to choose(选择哪一个)1.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)。
初中动词不定式用法归纳
1)Could you please tell me where to park my car? 2)It gives advice on what to do in lots of different situations. 3)We have decided where to go. 4)I don’t know what to do.
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——to do,句子结 构是:主+feel / find / make / + it+adj. / n.+to do...。如: 1)I find it difficult to remember everything. 2)He thinks it important to be honest.
6.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:
2. The boy wanted to ride his bicycle in the
street, but his mother told him __A____.
动词不定式的用法总结
动词不定式的用法总结动词不定式是英语中一种常见的非谓语动词形式,由动词原形加上“to”构成。
它具有多种用法和功能,在句子中可以扮演多种角色。
下面将对动词不定式的用法进行总结和分析。
一、作主语动词不定式可以作为句子的主语,通常位于句首,帮助构成句子的基本结构。
例如:- To learn is to grow. - To study is important for success.二、作宾语动词不定式可以作为动词的宾语,跟在及物动词之后。
例如:- She wants to dance all night. - They decided to go on a trip.三、作介词宾语动词不定式还可以作为介词的宾语,通常介词后面要跟动词的-ing形式,但在某些情况下,使用动词不定式更为恰当。
例如:- She is afraid to speak in public. (介词“in”后接动词不定式) - He is capable of solving difficult problems. (介词“of”后接动词不定式)四、作定语动词不定式可以作为名词的定语,修饰名词。
例如:- I have some books to read. - This is a place to visit.五、作表语动词不定式有时也可以作为句子的表语,描述主语的身份或状态。
例如:- His goal is to become a doctor. - The key is to be patient.六、作宾补动词不定式可以作为宾语的补语,表示对宾语的补充说明。
例如:- She considers him to be her best friend. - They found the task to be challenging.七、作状语动词不定式还可以作为状语,修饰动词或整个句子,表示目的、原因、结果等。
例如:- She works hard to achieve her goals. (目的) - He left early to catch the train. (目的) - He stayed up late to finish his project. (目的) - He left the room, only to return a few moments later. (结果)动词不定式的用法多样灵活,在句子中起着重要的作用。
初中英语动词不定式的基本用法
初中英语动词不定式的基本用法动词不定式(the infinitive)的基本用法动词不定式1.基本构成:to+动词原形,其否定形式是“not/never to do/not do”.2.基本用法:不定式可以带宾语或状语构成不定式短语,没有人称和数的变化。
一、不定式的句法功能1.作主语eg: It’s very common to raise money in Canadian and American school.不定式做主语时,常用代词it来代替不定式结构,这时it被称为形式主语,而作为句子真正主语的不定式则被后置,往往放v.和adj.之后。
e.g. To learn English well is not easy.=It’s not easyto learn English well.★不定式的逻辑主语有时用“of/for+名词或代词宾格”构成,即:It’s+ adj. + for / of sb. + to do sth.跟踪操演1. It’s very nice of them ________ (send) me the flowers.2. _________ (become) a teacher is my dream.3. It’s very important to learn English well.(同义句转换)________ ________ English well ______ very important.4.It’s important _______ Chinese well.A. to learnB. learnC. learningD. learns2.作表语eg:The best way to raise money is to sell newspapers.表语是用来透露表现主语的身份、状况和特性等,可与系动词组成系表布局。
eg:Her wish is to study in Ji Yan Middle school.My job is to clean the streets.跟踪操演1. My work is __________ (clean) the room every day.2. His dream is _________ (be) a doctor.3.作宾语eg:The driver offered to help the patient.有些动词后只能用不定式作宾语,表示命令、打算或希望等。
初中英语知识点归纳动词的不定式与动名词的用法
初中英语知识点归纳动词的不定式与动名词的用法动词的不定式与动名词是英语中常见的两种动词形式,它们在句子中有各自独特的用法。
本文将对初中英语中动词的不定式与动名词的用法进行归纳总结。
一、动词的不定式的用法1. 不定式作为主语不定式可以作为句子的主语,常用的句型有:- To study English is important.- To succeed needs hard work.- To learn a foreign language is challenging.2. 不定式作为宾语不定式可以作为及物动词的宾语,常用的动词有:- want, hope, plan, decide等。
例如:- She wants to go shopping.- They hope to win the game.- I plan to visit my grandparents next week.3. 不定式作为表语不定式也可以作为句子的表语,常用的句型有:- The best way to learn is to practice.- His dream is to become a doctor.- My goal is to travel around the world.4. 不定式作为状语不定式可以作为状语修饰动词、形容词或副词。
常用的句型有:- I woke up early to catch the train.- She was too tired to continue working.- He spoke slowly to make sure everyone understood.二、动名词的用法1. 动名词作为主语动名词可以作为句子的主语,常用的句型有:- Swimming is my favorite sport.- Reading books is a good way to relax.- Playing basketball requires teamwork.2. 动名词作为宾语动名词可以作为及物动词的宾语,常用的动词有:- enjoy, like, love, hate等。
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。
初中英语动词不定式的用法小结
初中英语动词不定式的用法小结一、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、作表语My idea is to ring him up at once.我的想法是马上给他打电话。
如果主语部分含实义动词do,且作表语的动词又是“do”的内容,这时表语不定式的“to”可以省略。
如:All I did was wait here.我能做的就是在这里等。
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。
He has decided to go to the countryside.他已决心去乡下。
四、“疑问词+动词不定式”结构可以作动词know、think、find out等的宾语。
I don’t know who to ask.我真不知道该问谁。
5、“疑问词+动词不定式”能够作动词show、teach、ask等背面的间接宾语。
She told me where to find the earphone.她通知我甚么中央能够找到耳机。
六、假如宾语太长,可用it作形式宾语,组成“主语+谓语+ it +宾语缺乏语(名词或描述词) + to do sth”布局,谓语动词常为find、think、feel等。
I found it difficult to stop him.我发现拦截他很艰巨。
七、动词不定式可以作介词的宾语。
XXX is about to start.秋收即将开始。
初中英语不定式用法总结
初中英语不定式用法总结1.不定式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”。
2.不定式的功能(1)不定式作主语动词不定式作主语时,常用it作形式主语,而将真正的主语后置。
如:To learn English well is useful.=It is useful to learn English well.It's important for us to protect the environment.(2)不定式作宾语①不定式用在及物动词后作宾语,常见的及物动同有:begin,choose,continue,decide,expect,fail,forget,hate,help,hope,learn,manage,mean,need,offer,plan,prefer,pretend,promise,refuse,try,want,wish,determine,afford,agree,start,likeShe promised to come at nine o'clock. 她答应九点来的。
I have decided to study English.我已决定学英语了②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 very easy to read English every day.我认为每天读英语很简单。
③常见的一些接不带to的动词不定式的结构Why not do...,Why don't you do...,had better ( not) do...Would rather do,Could/Would/Will you please ( not) do...如:I would rather stay in the room.我宁愿待在房间里。
动词不定式6种用法总结
动词不定式6种用法总结动词不定式(infinitive)有以下六种基本用法:1. 作为动词的宾语:动词不定式可以作为另一个动词的宾语,例如:- I want to learn Chinese.(我想学中文。
)- She loves to dance.(她喜欢跳舞。
)2. 作为主语:动词不定式可以作为句子的主语,通常用于表达一般的动作、状态、观点等,例如:- To travel is my dream.(旅行是我的梦想。
)- To wait is boring.(等待很无聊。
)3. 作为表语:动词不定式可以作为动词 "be" 的表语,常用于表达目的、原因、结果等,例如:- The purpose of this meeting is to discuss the new project.(这次会议的目的是讨论新项目。
)- Her suggestion is to study harder.(她的建议是更加努力学习。
)4. 作为定语:动词不定式可以修饰名词或代词,通常用来表示目的、结果、用途等,例如:- The best way to learn a language is to practice speaking.(学习一门语言的最佳方法是练习口语。
)- He needs a pen to write with.(他需要一支可以写字的笔。
)5. 作为状语:动词不定式可以作为句子的状语,表示目的、结果、方式、条件等,常常与动词 "to be" 连用,例如:- She went to the supermarket to buy some groceries.(她去超市买些食品杂货。
)- He ran fast to catch the bus.(他跑得很快,以便赶上公交车。
)6. 作为补语:动词不定式可以作为某些动词的宾语补足语,常用于表示目的、愿望、需求等,例如:- They made her promise to come back.(他们让她答应会回来。
动词不定式的用法总结
动词不定式的用法总结动词不定式(to do)是初中英语课的一个重点,也是中考要考查的一个项目。
接下来,小编给大家准备了动词不定式的用法总结,欢迎大家参考与借鉴。
动词不定式的用法总结动词不定式属于非谓语动词的一种形式,很多同学经常把它和谓语动词混在一起,掌握起来有困难。
下面我们对动词不定式的用法做简单归纳,帮助同学们记忆:一、动词不定式在句子中不能充当谓语,没有人称和数的变化。
二、动词不定式是由“to+动词原形”构成(有时可以不带to)。
动词不定式的否定形式是“not+动词不定式”(not不与助动词连用)。
三、动词不定式短语具有名词、形容词和副词等的功能,可在句中用做多种句子成分。
1、主语:常置于句末,而用it代替其做形式主语。
例:To go in for sports helps youstay fit.(book4,L28)It helps you stay fit to go in for sports. It is dangerous to swim in the deep sea on your own.注:此句式中不定式逻辑上的主语可由for或of引出,逻辑主语由of引出时,表语的形容词为kind,nice,good,polite,clever,foolish,right,wrong等表示评价的形容词。
例:It's right of him to refuse the invitation1.(him为逻辑主语)2、表语:Our duty is to protect the enviroment.3、动词宾语:此种情况可按固定搭配或句式去记。
例:would you like to see my photos?Kevin planned to visit his uncle.(book4,L11)和plan用法一样的词还有:start,want,agree,hope,begin,decide等。
初中英语知识点归纳动词的不定式和动名词用法
初中英语知识点归纳动词的不定式和动名词用法动词的不定式和动名词是初中英语学习中重要的语法知识点。
本文将对不定式和动名词的用法进行归纳总结,并给出相关例句,以帮助初中生更好地掌握这些知识。
一、不定式的用法不定式是动词的一种形式,在句中可以作主语、宾语、表语、定语、状语等。
以下是不定式在不同功能中的具体用法。
1. 不定式作主语不定式作主语时,常使用以下形式:to + 动词原形。
例如:- To read books is beneficial for students.阅读书籍对学生有益。
2. 不定式作宾语不定式作宾语时,常跟在某些动词后面,如:want, like, love, hate, hope, plan等。
例如:- I want to learn how to swim.我想学游泳。
3. 不定式作表语不定式作表语时,常用于以下句型:主语 + be + 不定式。
例如:- His dream is to become a doctor.他的梦想是成为一名医生。
4. 不定式作定语不定式可以作为名词的定语,放在名词前面修饰名词。
例如:- She has a book to read.她有一本可供阅读的书。
5. 不定式作状语不定式可以作时间、目的、原因、结果、伴随等状语。
例如:- She went to the store to buy some groceries.她去商店购买一些食品杂货。
二、动名词的用法动名词是将动词变为名词形式,以-ing结尾。
动名词可以作主语、宾语、表语、定语和状语等。
以下是动名词在不同功能中的具体用法。
1. 动名词作主语动名词作主语时,可以使用以下句型:动名词 + 动词。
例如:- Swimming is my favorite sport.游泳是我最喜欢的运动。
2. 动名词作宾语动名词可以作动词后面的宾语,也可以作介词后面的宾语。
例如:- I enjoy playing soccer.我喜欢踢足球。
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初中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。
现对九年级动词不定式的用法作一次简要梳理动词不一,定式作主语
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。
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)
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)
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。
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...。
4.既可接动词不定式又可接ving形式作宾语,意思差别不太大的动词有begin, start, like, love 等。
一般说来,动词不定式表一次、数次的具体动作、将来动作或动作的全过程,ving形式表习惯性的连续动作。
但是这种区别并不很严格,特别是美国英语,即使
习惯性的动作也可以用动词不定式
begin用了进行时态,后面只接不定式作宾语,表示事情刚开始,还要继续下去。
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
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时,用动词不定式的主动式。
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。
3.在“there be...”句型里,句子的主语是动词不定式动作的对象,常用主动式
五、用作补语
动词不定式作补语时,在主动语态句里补宾语,在被动语态句里补主语,句子的宾语或主语是不定式动作的逻辑执行者。
如果不定式是to be done,句子的宾语或主语就是逻辑承受者。
1.在主、被动语态句里用带to的动词不定式作补语的动词主要有:要求允许提议(ask, allow, permit, advise),期望邀请鼓励(expect, suppose, invite, encourage),教导告诉想要(teach,
tell, want),等待希望愿意(wait for, wish, would like / love)。
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。
3.help后接动词不定式作补语,to可带可不带。
一般说来,带to表间接帮助,不带to 表直接帮助。
在被动语态句里,或者用不定式的否定式作补语时要带to。
如:
4.be said, be sure, happen, seem等后面可以接带to的动词不定式作主语的补语。
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。
to do / in order to do / so as to do用作目的状语,置句末时都可以用,置句首时只用to do / in order to do。
so as to do一般不置于句首,可以引导结果状语从句,in order to do 不引导结果状语从句。
2.原因状语,多见于“sb.+be+adj.+to do...”结构句中。
3.结果状语,多见于“too...to”,“enough to...”结构句中
4.有些动词不定式作状语,常说明前面形容词的性质和特性。
动词不定式与句子的主语有逻辑的动宾关系。
动词不定式前面的形容词一般是:cheap, dangerous, difficult, easy, fun, hard, interesting, necessary。
不定式常用主动式表被动意义。
.
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,不说明人的特性。
前面如果是名词用for。
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
1.用作句子的成分。
2.单独使用时相当于一个特殊疑问句。
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。