初中不定式todo的用法
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todosth和doingsth七年级下册"todosth" 和 "doingsth" 是英语中常用的动词时态,常用于描述动作或状态的变化。
这两种时态在七年级下册的英语教学中是非常重要的知识点。
1. "to do sth"(不定式)
用法:表示某个动作尚未发生,但即将发生。
通常用于描述未来的动作或计划。
结构:to + 动词原形 + 其他(例如:to play basketball、to go to the movies)。
例子:I want to go to the park this weekend.(这个周末我想去公园。
)
2. "doing sth"(现在分词)
用法:表示某个动作正在进行中,或者描述某个持续的状态。
结构:动词的 -ing 形式 + 其他(例如:playing basketball、going to the movies)。
例子:They are playing basketball in the gym.(他们正在体育馆里打篮球。
)
在七年级下册的英语教学中,学生需要掌握这两种时态的基本用法和结构,并能够在不同的语境中正确运用。
通过大量的练习和阅读,学生可以逐渐掌握这些时态,并提高自己的英语表达能力。
To Do的三种用法一、To Do的基本含义To Do 是英语中的一个短语,来自动词 to do 的不定式形式。
它有三种基本用法,包括作为动词、名词和形容词。
下面将详细介绍这三种用法。
二、作为动词的To Do作为动词,to do 表示“做,干,完成”等含义,常用于任务、计划或工作的完成。
to do 用于不同的时态和句型中,如下:1. 一般现在时•I always do my homework in the evening.•They do the laundry every Sunday.•He does the dishes after dinner.2. 一般过去时•We did a lot of sightseeing during our vacation.•She did an experiment in the chemistry lab yesterday.•They did their best to win the game.3. 现在进行时•I am doing my homework right now.•They are doing a group project at the moment.•She is doing research for her thesis.4. 过去进行时•I was doing my laundry when the power went out.•They were doing some renovations to their house last month.•She was doing yoga in the park when it started raining.5. 将来时•I will do the grocery shopping tomorrow.•They will do a presentation next week.•He will do some repairs on the car this weekend.6. 否定形式•I don’t do the dishes. My sister does.•They didn’t do their homework yesterday.•She doesn’t do any exercise.7. 疑问形式•Do you do yoga every day?•Did he do his chores?•Does she do her makeup before leaving the house?三、作为名词的To Do作为名词,to do 常用于表示待办事项、任务或计划。
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。
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!。
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"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。
动词不定式时态用法动词不定式是一种非谓语动词形式,具有丰富的时态变化。
理解和掌握动词不定式的时态用法对于准确、流利地使用英语至关重要。
一、一般式(to do)动词不定式的一般式(to do)表示的动作通常与谓语动词的动作同时发生或在其后发生。
例如:“I have a lot of work to do”(我有很多工作要做。
)这里“to do”表示的动作是在“have”这个动作之后发生的。
再比如:“He decided to go abroad”(他决定出国。
)“decided”和“to go”几乎是同时发生的动作。
一般式还用于表达将来的动作,这种将来的意味往往是基于当前的计划或安排。
比如:“We are going to build a new house next year The materials to be used have been prepared”(我们明年要建一座新房子。
要用的材料已经准备好了。
)这里“to be used”表示将来要被使用的材料。
二、进行式(to be doing)动词不定式的进行式(to be doing)表示的动作与谓语动词的动作同时进行。
例如:“He pretended to be reading when I came in”(我进来时,他假装在读书。
)“pretended”和“to be reading”是同时发生的。
这种时态用法强调的是动作正在进行的过程。
三、完成式(to have done)动词不定式的完成式(to have done)表示的动作发生在谓语动词的动作之前。
比如:“I'm sorry to have kept you waiting so long”(很抱歉让你等了这么久。
)“to have kept”发生在“am sorry”之前。
再看这个例子:“She is said to have studied abroad for two years”(据说她在国外学习了两年。
to do不定式用法总结及练习to do不定式的用法:当to do不定式作主语时,一般用it作形式主语,不定式后置;当to do不定式作宾语时,具体句型为谓语动词+动词不定式和系表结构+动词不定式;当to do不定式作宾语补足语时,具体结构为主语加谓语加宾语加动词不定式。
扩展资料一、当to do不定式作主语1、一般用it作形式主语,不定式后置,具体的.句型为It's adj/noun (for sb) to do。
例如:It's a pity for you to drop out of school.真遗憾,你竟然辍学了。
It's a good idea for you to eat less fried food你少吃点油炸食品是好想法。
二、当to do不定式作宾语1、谓语动词+动词不定式(多数动词属于此类动词)例如:Some students hate to study English.有些学生不喜欢研读英语。
He pretended to be a good man.他假装是好人。
2、系表结构+动词不定式例如:I am glad to see him.我很高兴看到他。
His health is likely to get worse.他的健康可能会恶化。
三、当to do不定式作宾语补足语1、具体结构为:主语+谓语+宾语+动词不定式例如:The teacher urged his students to prepare for the exam.老师劝他的学生准备考试。
Their help enabled me to finish the work with ease.他们帮助我,使我能够顺利地完成工作。
2、当动词不定式做make, have, let, hear, see, feel等动词宾语的补足语,要省略“to”例如:My father will probably have Tom paint the house green.我爸爸很可能叫汤姆把房子漆成绿色。
初中英语动词不定式todo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。
一、【常使用动词不定式(to do)的短语】1、It’s time to do sth. It’s time for sth 该作某事的时候了.It’s time for sth.是干某事的时间了。
It’s time (for sb) to do sth.该干某事了。
It’s time that sb did sth.该干某事了。
例如:(1) It’s time for the meeting.该开会了。
(2)It’s time for us to go to school.我们该上学了。
(3)It’s high time that you went to bed.你该上床休息了。
注意点:在句型(3)中,可以在time前加rush、high等修饰词,这个句型是虚拟语气的一种,含有“稍迟一点”的含义。
而(2)则是“正是干某事的时候”。
2、can’t wait to do sth. 迫不及待要作某事3、ask (tell sb. (not ) to do sth. 要求/告诉某人(不)作某事4、allow sb. to do sth. 允许某人作某事5、be supposed to do sth. 应该作某事6、Would like /want (sb.) to do sth. 想要作某事7、have sth/nothing to do 有…时要做/与…无关8、find it +adj. to do sth. 发觉作某事…9、prefer to do sth. rather than do sth. 宁愿作某事,而不愿作某事10、I t’s +adj. for sb. to do sth. 作某事对某人来说…11、It’s better /best to do sth. 最好做某事1 / 212、It takes sb. st. to do sth. 某人做某事用了一些时间友情提示:范文可能无法思考和涵盖全面,供参考!最好找专业人士起草或审核后使用,感谢您的下载!。
初中不定式t o d o的用法-CAL-FENGHAI-(2020YEAR-YICAI)_JINGBIAN1.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 that I 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。
She can't speak to you.He should give her some money.Shall I talk to him?Would you like a cup of coffee?I might stay another night in the hotel.They must leave before 10.00 a.m.2)使役动词let, have, make后,感官动词see, watch, look at, notice , observe, hear, listen to, smell, feel, find等后。
注意:被动语态中不能省去to。
例如:I saw him dance. 我看见他跳舞。
=He was seen to dance.The boss made them work the whole night. 老板让他们整夜干活。
=They were made to work the whole night.He saw her fall from the cliff.We heard them close the door.They saw us walk toward the lake.She felt the spider crawl up her leg.3) 使役动词let, have, make后Her parents let her stay out late.Let's go to the cinema tonight.You made me love you.Don't make me study that boring grammar book!4)would rather,had better句型后We had better take some warm clothing.She had better ask him not to come.You'd better not smile at a crocodile!We had better reserve a room in the hotel.You'd better give me your address.They had better work harder on their grammar!。