初中不定式todo的用法
总结todo的用法(精选4篇)

总结todo的用法第1篇不定式在句中做定语通常做后置定语,即放在被修饰名词或代词后。
它通常有以下几种用法:(一)不定式常可用来修饰物,表示要做某事。
如:1、The next train to arrive was from NewYork.下一列到站的火车是从纽约开来的`。
2、I have nothing to say on this question.在这个问题上,我没有什么话要说。
3、We are looking for somewhere to live.我们正在找一个地方住。
(二)不定式还可用来修饰人。
如:1、He was the first guest to arrive.他是第一个到达的客人。
2、Miss Brown was the next person to rise to speak.布朗小姐是下一个起来发言的人。
3、He was a brave man to do what he did.他是个勇者才有这样的行为。
(三)很多特定的名词后也可用不定式做定语,这样的名词常用的有:way,time,reaso n,chance,opportunity,need,wish,effort,right,ambition等。
如:1、It's time for you to get up and go to school.你该起床去上学了。
2、There is no reason to doubt his word.没有理由怀疑他的话。
3、They have now an opportunity to go abroad to studyfurther.他们现在有机会出国深造。
(四)某些动词或形容词后可接不定式时,它相应的同根名词也常用不定式做定语。
如:1、He made an attempt to learn English well.他试图学好英语。
(attempt to do sth) 2、His ability to get on with people is his chiefadvantage.他能和人相处是他的主要优势。
非谓语动词之动词不定式(to do)的用法

非谓语动词之动词不定式(to do)的用法非谓语动词是指在句子中不是谓语的动词,主要形式有:不定式、动名词和分词(现在分词和过去分词)。
1.“to do”动词不定式的变形2.动词不定式的用法(1)充当主语(一般会用it 当形式主语)To swim here is dangerous. =It is dangerous to swim here.To pass this English exam is unlikely. =(2)充当表语(多数情况下,可以转换成动词不定式做主语)My job is to help with your English learning.To help with your English learning is my job.(3)充当宾语(只能做某些动词的宾语,一般不做介词的宾语;有时用“it”做形式宾语)I decided to attend this meeting last night.I find it necessary to learn a foreign language.注意:当以下动词欲接动词作宾语时,只能跟不定式作宾语。
decide, determine, learn, wish, hopeagree, plan, pretend, dare, refuse, failprepare, try, manage, help, promiseoffer, beg, demand, afford, arrange, be supposed(4)充当宾语补足语I persuaded him to make a speech in public.注意:在感官动词/使役动词/help后(see, hear, watch, notice, make,have, let后不定式做宾补时,可省略“to”)I saw them have a disagreement on who should sweep the floor. (我看到了他们争论的整个过程)但,感官动词后面也可接Ving形式,表示正在进行。
动词不定式to do用法

动词不定式to do用法
1. 嘿,你知道吗?动词不定式 to do 可以用来表示目的呢!比如说,“I went to the store to buy some food.”(我去商店是为了买些食物。
)这不就是很明确地说出了行动的目的嘛!咱要是不想清楚目的,那做事不就没头绪啦?
2. 哇塞,动词不定式 to do 还能在某些动词后作宾语呢!像“I want to learn English.”(我想要学英语。
)这里的 to learn 不就是跟着 want 这
个动词的嘛,很神奇吧?
3. 嘿呀,想想看,动词不定式 to do 在一些形容词后也有用哦!好比“She is happy to see you.”(她见到你很高兴。
)to see 就很好地补充说明了
那种高兴的原因呀,是不是挺有意思?
4. 哎呀呀,动词不定式 to do 还能用来作主语呢!“To err is human.”(犯错是人之长情。
)这不就是把 to err 放在前面当主语了嘛,没想到吧!
5. 哇哦,它还可以表示结果呢!“He worked hard only to fail.”(他努
力工作结果却失败了。
)这就有种意外的感觉,是不是很形象?
6. 嘻嘻,动词不定式 to do 也能表示未来的动作哦!“She is to marry next month.”(她下个月就要结婚了。
)是不是感觉一下就看到了未来要发生的事情呀!我觉得啊,动词不定式 to do 真的太好用啦,让我们的表达丰富又准确呢!。
to do不定式作表语

to do不定式作表语
to do不定式作表语时,表示主语的行为、动作或是状态。
它可以跟在系动词(如be, seem, appear)、感官动词(如hear, see, watch)或是使役动词(如make, let)后面。
以下是一些例句:
1. My dream is to travel around the world.
(我的梦想是环游世界。
)
2. Her goal is to become a successful lawyer.
(她的目标是成为一名成功的律师。
)
3. The best way to learn a language is to practice speaking it every day.
(学习一门语言的最佳方法是每天练习口语。
)
4. He seems to know a lot about art.
(他似乎对艺术很有了解。
)
5. I heard him say that he wants to quit his job.
(我听他说他想辞职。
)
6. They let their children play in the park.
(他们让他们的孩子在公园玩。
)。
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)。
todo不定式用法

todo不定式用法"to do" 不定式是英语中的一种不定式结构,通常以"to" 开头,后面紧跟动词原形。
在这个结构中,"to" 被称为不定式符号,而不定式本身则可以用作名词、形容词或副词。
以下是"to do" 不定式的常见用法:1. 作为动词的不定式(动词不定式):•作为动词,"to do" 表示一个动作或状态的概念。
•例如:•I want to do my homework.(我想做我的家庭作业。
)•She needs to finish the project.(她需要完成这个项目。
)2. 作为名词的不定式(不定式名词):•"to do" 不定式可以作为名词使用,表示一个抽象的动作或概念。
•例如:•To swim is my favorite activity.(游泳是我最喜欢的活动。
)•She enjoys reading books. To read is her hobby.(她喜欢读书。
阅读是她的爱好。
)3. 作为形容词的不定式(不定式形容词):•"to do" 不定式可以用作形容词,修饰一个名词。
•例如:•This is the best book to read.(这是最好的一本书,适合阅读。
)4. 作为副词的不定式(不定式副词):•"to do" 不定式可以用作副词,修饰动词、形容词或副词。
•例如:•She works hard to succeed.(她努力工作以取得成功。
)•The water is too hot to drink.(水太烫,不能喝。
)需要注意的是,有一些常见的动词后面直接接不定式,而无需"to"。
这些动词包括"make," "let," "help," "watch," 等。
to do不定式用法总结

to do不定式用法总结不定式to do是英语中常见的一种形式,它由动词原形前加上to构成。
不定式的用法有以下几种:1. 作为动词的宾语:常见的动词后使用不定式作宾语,例如:want to do、like to do、hope to do等。
Example:- I want to go shopping tomorrow.(明天我想去购物。
)- She hopes to become a doctor in the future.(她希望将来成为一名医生。
)2. 作为形容词的补语:有些动词后可以接不定式作为补语,表示主语的性质、特征等。
Example:- We are happy to help you.(我们很乐意帮助你。
)- He is eager to learn English.(他渴望学习英语。
)3. 作为副词的修饰语:不定式可以修饰动词、形容词或副词,表示目的、原因、结果等。
Example:- He ran fast to catch the bus.(他跑得很快以赶上公共汽车。
)- She is too tired to continue working.(她太累了,不能继续工作。
)4. 作为主语:不定式可以单独作为句子的主语。
Example:- To travel around the world is my dream.(环游世界是我的梦想。
)需要注意的是,不定式在句中的位置可灵活变动,通常放在动词后面,也可以放在句首或句尾。
不定式也可以带有助动词来表达不同的态度、情感或意愿。
总结起来,不定式to do的用法有:作为动词的宾语、形容词的补语、副词的修饰语以及作为主语。
初中英语动词不定式to do用法图示及举例说明(考试必备宝典).doc

初中英语动词不定式to do用法图示及举例说明(考试必备宝典)1、不定式的形式以动词do为例式|语态主动语态被动语态一般式to do (主动, 未发生) to be done (被动, 未发生)完成式to have done (主动, 已完成) to have been done (被动, 已完成)进行式to be doing (主动, 正在进行)完成进行式to have been doing (主动, 完成进行)不定式的形式2、不定式的句法功能(1)不定式作主语To hear from you is good. 收到你的来信很好To be a good student is not easy. 做一个好学生不容易不定式作主语时,为了保持句子的平衡,往往以it作形式主语,不定式作为真正主语置于谓语动词后。
如:It’s good to hear from you.It’s not easy to be a good student.(2)不定式作宾语通常用于want, hope, wish, like, need, hate, begin, start, remember, agree, learn, refuse, manage, help等词后。
如:I forgot to close the door. 我忘记关门了Please remember to write to me. 请记得给我写信(3)不定式作表语My job is to pick up litters. 我的工作是捡起那些乱丢的垃圾He seemed to have heard something. 他看起来似乎听说了一些事(4)不定式作定语不定式作定语时,须放在它所修饰的名词或代词后。
如:I have a lot of letters to write. 我有很多信要写I have a lot of homework to do. 我有很多作业要做(5)不定式作宾补通常用于want, wish, ask, order, tell, know, help, advise, allow, cause, force等词后。
- 1、下载文档前请自行甄别文档内容的完整性,平台不提供额外的编辑、内容补充、找答案等附加服务。
- 2、"仅部分预览"的文档,不可在线预览部分如存在完整性等问题,可反馈申请退款(可完整预览的文档不适用该条件!)。
- 3、如文档侵犯您的权益,请联系客服反馈,我们会尽快为您处理(人工客服工作时间:9:00-18:30)。
初中不定式todo的用法1. 不定式的用法------1.1 不定式作主语不定式作主语,往往用it作形式主语,真正的主语不定式放至句子的后面。
例如:It'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. 不用车的时候,锁车是有必要的。
It's very kind of you to help us. 他帮助我们,他真好。
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。
但是,用不定式作主语的句子中还有一个不定式作表语时,不能用It is… to…的句型。
另外,这样的句子,不能用动名词作表语。
例如:(对)To teach is to learn.(错)It is to learn to teach.(错)To teach is learning.(错)Teaching is to learn.典型例题The chair looks rather hard, but in fact it is very comfortable to ___.A. sitB. sit onC. be seatD. be sat on答案:B. 如果不定式为不及物动词,其后应有必要的介词。
当动词与介词连用时,常位于"形容词+动词不定式"结构的末尾。
1.1.1 不定式做主语It's for sb/It's of sb to do sth这样的句子中,由于表语形容词性质的不同,导致了不定式逻辑主语标志用for或of 的区别。
1)for sb.句型中的形容词一般为表示事物的特征特点,表示客观形式的形容词,如easy, hard, difficult, interesting, impossible等:例如:It's very hard for him to study two languages. 对他来说学两门外语是很难的。
2)of sb句型中的形容词一般为表示性格,品德,心智能力,表示主观感情或态度的形容词,如good, kind, nice, clever, foolish, right。
例如:It's very nice of you to help me. 你来帮助我,你真是太好了。
1.2 不定式作宾语有些及物动词用不定式作宾语,结构为动词+不定式。
例如:afford aim agree arrange ask decidebother care choose demand desire determineelect endeavor hope fail help learnlong 渴望mean manage offer plan pretendrefuse tend undertake expect hate intend例如:The driver failed to see the other car in time. 司机没能及时看见另一辆车。
He offered to help me. 他表示愿意帮助我。
2)有些动词除了可以用不定式作宾语,还用不定式作补语,即有动词+宾语+不定式的结构。
例如:ask choose expect help beg intendlike/love need prefer prepare want wish例如:I like to keep everything tidy. 我喜欢每件东西都保持整洁。
I like you to keep everything tidy. 我喜欢你使每件东西都保持整洁。
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。
3)有些动词或动词词组可以用动词+疑问词+不定式的结构作宾语。
例如:decide know consider forget learn remembershow,wonder find out tell inquire explain例如:Please show us how to do that. 请演示给我们如何去做。
There are so many kinds of tape-recorders on sale thatI don't know which to buy.有这么多的录音机,我都拿不定主意买哪一种。
1.3 不定式作表语不定式可放在be动词后面,形成表语。
例如:My work is to clean the room every day. 我的工作是每天清扫房间。
His dream is to be a doctor. 他的梦想是成为一名医生。
1.4 不定式作定语不定式做定语通常要放在被修饰的词后,往往表示未发生的动作。
例如:I have a lot of work to do. 我有许多事要做。
There was nothing to bring home that morning. 那天早上(他回家时)两手空空。
1.5 不定式作状语1)目的状语常用结构为to do , only to do(仅仅为了), in order to do, so as to do, so(such)… as to…(如此…以便…)。
例如:He ran so fast as to catch the first bus. 他飞快地跑以便赶上第一班车。
I come here only to say good-bye to you. 我来仅仅是向你告别。
2)作结果状语,可以表示没有预料到的或事与愿违的结果,不定式要放在句子后面。
I awoke to find my truck gone. 我醒来发现箱子不见了。
He searched the room only to find nothing. 他搜索了房间,没发现什么。
3)表原因I'm glad to see you. 见到你很高兴。
She wept to see the sight. 她一看到这情形就哭了。
4)表示理由和条件He must be a fool to say so.You will do well to speak more carefully.1.6 不定式作补语1)有些有动词+宾语+不定式的结构。
例如:动词宾语不定式He reminded me to buy some eggs.THAT-从句He reminded me that I had to buy some eggs.advise allow cause challenge command compeldrive 驱使enable encourage forbid force impelinduce instruct invite like/love order permitmake let have want get warnpersuade request send tell train urge例如;Father will not allow us to play on the street. 父亲不让我们在街上玩耍。
The officer ordered his men to fire. 长官命令士兵开火。
注意:有些动词如make,have,get,want等可用不定式作做宾补,也可用分词作宾补。
现在分词表达主动,也表达正在进行,过去分词表达被动。
2)有些有动词+宾语+不定式的结构,不定式的动词往往是be,不定式一般可以省去。
例如:appoint consider find believe think declare(声称)guess judge imagine knowguess fancy(设想)例如:We believe him to be guilty. 我们相信他是有罪的。
We know him to be a fool. 我们知道他是个笨蛋。
(to be 不能省去)典型例题Charles Babbage is generally considered ___ the first computer.A. to inventB. inventingC. to have inventedD. having invented答案:C. 一般没有consider+宾语+be以外不定式的结构,也没有consider+宾语+doing的结构,排除A、B、D。
consider用动词be以外的不定式作宾补时,一般要求用不定式的完成式,故选C。
3)有些动词可以跟there +to be的结构。
例如:believe expect intend like love meanprefer want wish understand例如:We didn't expect there to be so many people there. 我们没料到会有那么多人在那里。
You wouldn’t want there to be another war. 你不至于想让另外一场战争发生吧。
1.7 动词不定式的否定式在不定式标志to前加上not。
例如:Tell him not to shut the window。
让他别关窗。
She pretended not to see me when I passed by. 我走过的时候,她假装没看见。
典型例题1)Mrs. Smith warned her daughter ___ after drinking.A. never to driveB. to never driverC. never drivingD. never drive答案:A warn sb to do sth.的否定形式为warn sb not to do sth.此处用的是否定词never.2)The boy wanted to ride his bicycle in the street,but his mother told him ____.A. not toB. not to doC. not do itD. do not to答案:A not to 为not to do it 的省略形式。
可以只用to这个词,而不必重复整个不定式词组。
及物动词do后应有宾语,因此也B,D不对。
2. 省略不定式符号“to”的情况1)情态动词(除ought外)后。