英语动词不定式
高中英语动词不定式(共26张PPT)

Because of the recent accident, our parents forbid my brother and me from swimming in the river unless someone agrees to watch over us.
Her husband can do everything except cook.
He wanted nothing but to stay there. 注意:如果but 或except 之前有实义动词do 的限定性
是或非限定形式,其宾语为不带to的不定式,否则为 带to的不定式。 Lots of empty bottles were found under the old man’s bed. He must have done nothing but ____ (drink) I thought you had planned to pradcrtiincekpiano today. “I did nothing but___ letters all day.”
careless,,clever,good,foolish,honest,kind,lazy,nice,right,silly, stupid,wise,等表示赞扬或批评的形容词,不定式前的 sb.可作其逻辑主语。
It is better to die on one’s feet than ____
A. to write B. write C. writing D. wrote
5、不定式(短语)做宾语补足语
在复合宾语中,动词不定式可充当宾语补 足语,如下动词常跟这种复合宾语:want, wish, ask, tell, order, beg, permit, help, advise, expect, encourage, persuade, allow, prepare, cause, force, call on, wait for, invite.,observe, intend, press, remind warn, lead, command 等, 如:
高中英语动词不定式

动词不定式不定式知识点综述不定式知识点综述1.不定式的基本形式 1. 不定式词作主语句型 1. 省略 to 的不定式作宾to do, to be done 2. 识记用不定式作宾语语补足语动词“五看to be doing; to have done, 的动词三使两听一感”to have been done 3. 跟动名词作宾语差别 2. 不定式作目的、结果2. 否认式组成状语2、不定式重难点解说重难点 1:动词不定式的时态语态动词不定式 (infinitive) 两种形式:一种是“to + 动词原形”组成( to- infinitive );另一种是不带 to 的不定式 ,即动词原形 (bare- infinitive) 。
动词不定式有一般式、进行式、达成式、完成进行式四种时态变化形式,一般式和达成式有被动语态变化形式。
主动语态被动语态一般式to do to be done进行式to be doing达成式to have done to have been done达成进行式to have been writinga. 不定式的时态是以句中谓语动词的时间为依照的:(1)一般式表示的动作或状态往常发生在谓语动词以后或同时发生。
例:They made plans to live in Paris.他们计划住在巴黎。
(to live发生在made plans以后)( 2)进行式表示其动作正在进行,与谓语动词发生的动作同时进行。
例: He pretended to be listening to me carefully.他假装仔细地听我讲。
(3)不定式的达成式所表示的动作或状态发生在谓语动词所表示的动作以前。
例: I am sorry to have kept you waiting.对不起,让你久等了。
(to have kept 发生在 I am sorry 所表示的时间以前)(4)不定式的达成进行式表示动作在谓语动词以前发生,并且向来进行着。
高中英语动词不定式的基本用法

高中英语动词不定式的基本用法1. 什么是动词不定式?动词不定式是动词的一种形式,在句中充当名词、形容词或副词。
它通常由“to”加上动词原形构成。
例如:to eat、to sleep、to study。
2. 动词不定式作名词动词不定式作名词时,可以做主语、宾语、表语或宾补。
- 作主语:To travel is my dream.- 作宾语:I want to learn English.- 作宾补:She asked me to help her.3. 动词不定式作形容词动词不定式作形容词时,通常修饰名词或代词。
- 修饰名词:I have a book to read.- 修饰代词:There is nothing to worry about.4. 动词不定式作副词动词不定式作副词时,通常修饰动词、形容词或副词。
- 修饰动词:She went to the park to play.- 修饰形容词:He is too tired to continue.- 修饰副词:She runs fast to catch the bus.5. 动词不定式与其他句型的搭配动词不定式与其他句型可以有不同的搭配方式。
- 动词不定式与情态动词搭配:I can't wait to see you.- 动词不定式与感官动词搭配:I heard him sing.- 动词不定式与使役动词搭配:She made me clean the room.6. 动词不定式的否定形式动词不定式的否定形式是在“to”前加“not”,构成“not to + 动词原形”。
- I decided not to go to the party.7. 动词不定式的完成式动词不定式的完成式是在“to”前加“have”,再加动词的过去分词形式。
- I'm glad to have met you.以上就是关于高中英语动词不定式的基本用法的完整版,希望能对您有所帮助。
高中英语动词不定式

动词不定式动词不定式是动词的一种非谓语形式,在句中不能单独作谓语。
动词不定式具有动词的性质,它能够有自己的宾语和状语,从而构成动词不定式短语。
它还能够有形式的变化,即一般式、实行式、完成式和被动式。
同时,动词不定式也具有非动词的性质,相当于一个名词、形容词或副词,能够在句中担任主语、宾语、宾语补足语、表语、定语和状语。
一、动词不定式的特征和种类动词不定式是由不定式符号to+动词原形构成,在某些情况下to也可省略。
A.不定式的一般式不定式的一般式表示的动作通常与主要谓语的动作同时或几乎同时发生,或是在它之后发生。
He appears to be very happy. 他看起来好像很高兴。
(同时发生)To catch the train, we'd better hurry to the station by taxi. 为了赶上火车,我们最好赶紧乘出租车去车站。
(to catch the train发生在hurry to the station之后)B.不定式的实行式不定式的实行式表示正在实行的或与谓语动词同时发生的动作。
It happened to be raining when I got there. 我到达那里的时候,天碰巧在下雨。
I'm glad to be traveling with you. 我很高兴和你一起旅游。
C.不定式的完成式不定式的完成式表示的动作在谓语表示的动作之前发生。
I'm sorry to have lost your key. 我很抱歉把你的钥匙弄丢了。
I meant to have finished my work last night, but I didn't feel very well. 我本来想昨晚完成工作的,但是我感觉身体不舒服。
It has been an honor for me to have been invited to your country. 对我来说,被邀请来你们国家是一件很荣幸的事情。
英语语法总结--动词不定式

Wedidn'texpecttheretobesomanypeoplethere.我们没料到会有那么多人在哪里。注意:有些动词需用as短语做补语,如regard,thinkbelieve,take,consider. WeregardTomasourbestteacher. 我们认为汤姆是我们最好的老师。 Marytookhimasherfather. 玛丽把他当作自己的父亲。
9省to的动词不定式
1)情态动词(除ought外,oughtto):2)使役动词let,have,make:3)感官动词see,watch,lookat,notice,observe,hear,listento,smell,feel,find等后作宾补,省略to。 注意:在被动语态中则to不能省掉。 Isawhimdance. =Hewasseentodance. Thebossmadethemworkthewholenight. =Theyweremadetoworkthewholenight.4)wouldrather,hadbetter:5)Why…/whynot…:6)help可带to,也可不带to,helpsb(to)dosth:7)but和except:but前是动词do时,后面出现的动词用不带to的动词不定式。8)由and,or和than连接的两个不定式,第二个to可以省去:9)通常在discover,imagine,suppose,think,understand等词后,可以省去tobe: Heissupposed(tobe)nice. 他应该是个好人。举例: HewantstomovetoFranceandmarrythegirl.Hewantstodonothingbutgoout.比较: Hewantstodonothingbutgoout. Hewantstobelieveanythingbuttotakethemedicine.典型例题1)----Iusuallygotherebytrain. ----Whynot___byboatforachange? A.totrygoing B. tryingtogo C. totryandgo D. trygoing 答案:D.whynot后面接不带to的不定式,因此选D。2)Pauldoesn'thavetobemade___.Healwaysworkshard. A.learn B.tolearn C.learned D.learning 答案:B.make后接不带to的动词不定式,当其用于被动时,to不可省略。
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。
新概念英语第2册动词不定式

Eg : He required us to keep it a secret. The doctor ordered him to stay in bed for a few days. I warn you not to do that again.
2 不定式即可作动词的宾语也可作介词的宾语. 不定式作介词的宾语时,介词之后一般不直接接不定式, 一般都是:疑问词+不定式作宾语. 这种不定式结构接近一个名词从句
动词+疑问词+不定式
Eg : I’m worrying about what to do next. Marx gave some advice on how to learn a foreign language.
4 在某些句型中,当主语部分有动作动词do时,作 表语的不定式可以省略符号 “to”,例如:
All you have to do is (to )press the button. The only thing I can do is (to) give you as much help as I can.
Eg : She has no choice but to wait for the news.
He could do nothing but wait. .
He will do anything for you except lend you money
注3 有些动词既可跟不定式作宾语,也可跟动名词作
继续做另一件事 继续做原来在做的事
Eg : I remember seeing you somewhere before.
动词不定式的形式初中英语语法资料

动词不定式的形式初中英语语法资料
1.动词不定式的一般形式:
不定式的一般形式是"to + 动词原形",如:to eat, to read, to dance等。
2.动词不定式的否定形式:
不定式的否定形式是在"to"之前加上"not",构成"not + to + 动词
原形",如:not to eat, not to read, not to dance等。
3.动词不定式的一般疑问形式:
不定式的一般疑问形式是将"to"放在动词原形之前,构成"to + 动词
原形 + ?",如:to eat? to read? to dance?等。
4.动词不定式的完成形式:
不定式的完成形式是在"to"后面加上have,再加上动词的过去分词
形式,构成"to have + 过去分词",如:to have eaten, to have read, to have danced等。
5.动词不定式的被动形式:
不定式的被动形式是在"to"后面加上be,再加上动词的过去分词形式,构成"to be + 过去分词",如:to be eaten, to be read, to be danced等。
需要注意的是,动词不定式在句子中充当动词,可以用作主语、宾语、表语、定语、状语等,具体用法要根据句子的结构和语境进行判断。
在一
些特殊情况下,动词不定式可能省略"to",例如:let me go, make him stop等。
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英语动词不定式对于英语来说接不定式的单词多为“打算”“计划”“希望”等表示未来的动词。
同样与不定时表示不同的动词不定式表示正在进行,一般性或经常发生性的行为。
定义(语态)动词和参与此动作的主语之间关系的一个术语。
当主语是动作的发起者(或之一)时,称为主动语态;如果动词不定式的逻辑主语是这个不定式所表示的动作的承受者,不定式一般要用被动语态形式。
如:It's a great honour to be invited to Mary's birthday party.(不定式作主语是被动语态to be invited是被邀请)It was impossible for lost time to be made up.(不定式作主语)I wish to be sent to work in the country.(不定式作宾语)Can you tell me which is the car to be repaired?(不定式作定语)He went to the hospital to be examined.(不定式作状语)My work is to clean the room every day.(不定式作表语)在There be结构中,修饰主语的不定式可用被动,也可用主动。
如:There are still many things to take care of (to be taken care of).但有时两种形式表达的意思不同,如:There is nothing to do now.( We have nothing to do now.) There is nothing to be done now.(We can do nothing now.)形式1) 现在式:一般现在时表示的动词,有时与谓语动词表示的动作同时发生,有时发生在谓语动词的动作之后。
一般为:动词+ to do sthHe seems to know this.I hope to see you again. = I hope that I'll see you again.我希望再见到你。
2) 完成式:表示的动作发生在谓语动词表示的动作之前。
I'm sorry to have given you so much trouble.He seems to have caught a cold.3)进行式:表示动作正在进行,与谓语动词表示的动作同时发生。
He seems to be eating something.4)完成进行式:She is known to have been wreaking on the problem for many years.一般在表示情绪的动词后加to do也表将来疑问词疑问词who,what,which,when,where,whether,how后可接不定式构成不定式短语,在句中作主语、宾语、表语等。
如:①When to leave for London has not been decided yet. (不定式在句子中做主语)②Mr. Smith didn't know whether to leave or stay there. (不定式在句子中做宾语)③I asked Professor Xu how to learn English well. (不定式在句子中做直接宾语)④The question was where to get the medicine needed. (不定式在句子中表语)以上例句中疑问词+不定式部分,均可转换为相应的从句形式。
如:①When we shall leave…③…how Icould learn……经常在这种结构中使用的动词有:consider,decide,discover,explain,findout,forget,hear,know,lea rn,observe,understand,wonder等。
作主语动词不定式作主语时,句子的谓语动词常用单数,其位置有以下两种:(1)把不定式置于句首。
如:To get there by bike will take us half an hour.骑自行车到那儿将花费我们半个小时。
To make up for lost time is not possible.要弥补失去的时光是不可能的。
To lean out of the window is dangerous.身子探出窗外很危险。
To save money now seems impossible.现在好像不可能存钱。
(2)用it作形式主语,把真正的主语不定式置于句后,常用于下列句式中。
如:①It+be+名词+to doIt's our duty to take good care of the old.照顾老人是我们的责任。
It is an offence to drop litter in the street.在马路上乱丢废物是违章的。
②It takes sb+some time+to doHow long did it take you to finish the work?你花了多少时间来完成这项工作?③It+be+形容词+for sb+to doIt is difficult for us to finish writing the composition in a quarter of an hour.我们难以在四分之一小时内完成这篇作文。
It is stupid of you to write down everything (that) the teacher says.你把老师说的所有东西都记下来的行为是很愚蠢的。
④It seems(appears)+形容词+to doIt seemed impossible to save money.在句型③中,常用表示客观情况的形容词,如:difficult,easy,hard,important,impossible,necessary 等;在句型④中,常用careless,clever,good,foolish,honest,kind,lazy,nice,right,silly,stupid,wise等表示赞扬或批评的词。
在不定式前的sb,可看作其逻辑主语。
这一句式有时相当于Sb is+形容词+to do 句式,如:It's kind of you to help me with my English.=You are kind to help me with my English.⑤It + 不定式结构可位于believe/consider/discover/expect/find/think和wonder之后He thought it would be safer to go by train.他认为乘火车比较安全。
He will find it is hard to make friends.他会感觉到交朋友困难。
⑥不定式的完成式也可作句子的主语To have made the same mistake twice was unforgivable.两次犯同样的错误是不可原谅的。
It is better to have loved and lost than never to have loved at all.爱过而后失去了爱,比从未爱过要好。
(3)举例(1)It's easy (for me) to do that.我做这事太容易了easy,difficult,hard,important,possible,impossible,comfortable, necessary,better;the first,the next,the last,the best,too much,too little,not enoughIt's so nice to hear your voice.听到你的声音真高兴。
It's necessary for you to lock the car when you do not use it.当你不用车的时候,锁车是有必要的。
(2)It's very kind of him to help us.他帮助我们,他真好。
Kind,nice,stupid,rude,clever,foolish,thoughtful,thoughtless,brave, considerate(考虑周到的),silly,selfish(自私的)例句:It was silly of us to believe him.我们真愚蠢,竟然相信了他。
It seemed selfish of him not to give them anything.他不给他们任何东西,这显得太自私了。
注意:(1)其他系动词如,look,appear等也可用于此句型(2)不定式作为句子成分时,动词用单数形式。
(3)当不定式作主语的句子中又有一个不定式作表语时,不能用It is… to…的句型(对)To see is to believe.眼见为实。
(错)It is to believe to see.作宾语1) 以下动词后,只能跟不定式作宾语afford(付得起),agree(同意),aim(力求做到),appear(显得),arrange(安排),ask(要求),attempt (试图),care(想要),choose(决定),claim(声称),condescend(屈尊),consent(准许),decide(决定),demand(要求),determine (决心),endeavor(竭力),expect(期待),fail(未履行),help(帮助),hesitate (犹豫),hope(希望),learn(学会),manage(设法),neglect(疏忽),offer(主动提出),plan(计划),prepare(准备),pretend(假装),proceed(接着做),promise (答应),prove(证明),refuse(拒绝),resolve(解决),seem(觉得好像),swear (发誓),tend(往往会),threaten(预示),undertake(承诺),volunteer(自愿做),vow(发誓),want(想要),wish(希望)举例:The driver failed to see the other car in time.司机没能及时看见另一辆车。