小学英语不定式用法总结
不定式知识点归纳总结
不定式知识点归纳总结一、不定式的构成不定式是动词的一种形式,由“to + 动词原形”构成。
例如:to be, to do, to go等。
二、不定式的用法1. 作主语例句:To study hard is important for students.翻译:努力学习对学生来说是很重要的。
2. 作宾语例句:I want to learn English.翻译:我想学英语。
3. 作宾语补足语例句:She asked me to help her.翻译:她要求我帮助她。
4. 作表语例句:Her dream is to become a doctor.翻译:她的梦想是成为一名医生。
5. 作定语例句:There is a lot of work to do.翻译:有很多工作要做。
6. 作状语例句:He came here to see you.翻译:他来这里是为了见你。
7. 用在and, but, or连接两个不定式例句:I want to learn English and to improve my speaking skills.翻译:我想学英语,还想提高口语能力。
8. 与形容词和副词连用例句:I'm happy to meet you.翻译:见到你我很高兴。
9. 用在名词前表示目的,结果等例句:He gave us some advice to help us study better. 翻译:他给了我们一些建议,帮助我们更好地学习。
三、不定式的特殊用法1. with + 宾语 + 不定式例句:He left me with nothing to say.翻译:他让我无话可说。
2. for + 宾语 + to 不定式例句:We have a lot of work for you to do.翻译:我们有很多工作需要你做。
3. 不定式的被动形式例句:The book is difficult to finish.翻译:这本书难以完成。
动词不定式用法小结
B.doing,working
C.todo,workingD.do,work
26.Pleasetellme________her.Ihavesomething_______her.
A.wheretofind,telling
A.wentB.goes
C.goingD.togo
13.Itistime________him________supper.
A.of,tohaveB.for,tohave
C.of,havingD.for,tohas
14.It’sverykind_______you______me.
A.of,tohelpB.for,tohelp
A.don’tdraw
B.tonotdraw
C.nottodraw
D.notdraw
3.Hewanted________acupoftea.
A
4.I’dlike________awordwithyou.
A.hadB.having
C.tohaveD.have
Ihavenochairtositon.
我没有椅子坐。
Hehasnohousetolivein.
他没有房子住。
六.动词不定式作目的状语:
动词不定式作目的状语常用在go,come,hurry等不及物动词后,表目的。
Hewenttoseehissisteryesterday.
他昨天去看妹妹了。
Theygotupearlytocatchtheearlybus.
她没有纸写字?
ThebestwaytolearnEnglishistouseit.
学英语最好的方法是使用它。
Whenisthebesttimetoplantvegetables?
小学英语动词不定式用法小结及练习
小学英语动词不定式用法小结及练习一、动词不定式的形式动词不定式是动词的一种形式,由“to+动词原形”构成。
例如:to study, to play, to eat等。
二、动词不定式的用法1. 用作动词的宾语:- I want to go to the park.(我想去公园。
)- She likes to play soccer.(她喜欢踢足球。
)2. 用作动词的主语:- To learn English is important.(研究英语很重要。
)- To eat fruits is good for your health.(吃水果对健康有益。
)3. 用作形容词的补语:- I am happy to help you.(我很高兴帮助你。
)- She is eager to learn new things.(她渴望研究新东西。
)4. 用作副词的补语:- He went to the zoo to see the animals.(他去动物园看动物。
)- She ran fast to catch the bus.(她跑得很快以赶上公交车。
)5. 用作名词的补语:6. 用作介词的宾语:- Are you ready to start the game?(你准备好开始比赛了吗?)- She is excited to go on a trip.(她很兴奋去旅行。
)练:1. 请将下列句子中的划线部分改为动词不定式形式:- I like swimming in the pool. → I like to swim in the pool.- They want playing soccer. → They want to play soccer.2. 请填入适当的动词不定式形式:- My dream __________ (be) a teacher.- He needs __________ (study) harder for the exam.3. 请根据句意选择动词不定式的正确形式填空:- She decided ______ (go) to the movie with her friends. 以上是动词不定式的用法小结及相关练。
最全面英语动词不定式的用法归纳整理总结
动词不定式的归纳总结动词不定式是由“to+动词原形”构成的,否定形式为“not to+动词原形”构成的,这里的to没有词义,只是为了构成不定式的一种符号,是非谓语动词形式的一种,动词不定式在句中不能独立作谓语,除了不能作谓语以外,其他成分都可以作,因此,在句中可以作主语、表语、宾语、定语、状语和补足语。
❶ 动词不定式做主语:这种情况一般要改成it作形式主语的形式,后接不定式,为了避免头重脚轻。
●“It is+形容词+for sb.+to do sth.”意为“做某事对某人来说是…的”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, inportant, dangerous, inpossible等。
eg To learn English is very important for me 对我来说学英语很重要。
=It is very important for me to learn English.For you to make more friends is a good plan. 广交朋友是个好办法。
= It's a good plan for you to make more friends.●“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。
eg It was stupid of him to press the emergency button. 他按了紧急按钮,这真愚蠢。
❷ 本单元我们主要学习动词不定式作宾语的用法:现就动词不定式作宾语的用法介绍如下:●谓语动词+动词不定式,此类动词很多,常见的有:want, like, wish, hate, prefer, hope, continue, manage, try, ask, offer(主动提出), start, forget, promise, mean, pretend(假装), intend(打算), begin, attempt(试图), decide, learn, desire (渴望), agree, care, choose, determine(查明), undertake(承担,承诺),expect 等eg Some students hate to study English. 有些学生不喜欢研读英语。
不定式的用法总结
3) feel, find, make, think, believe, consider 等动词后如果是 不定式做宾语,补语是形容词(或是名词),常用it作形式宾 语,把真正宾语置于补语之后,以免宾语太长使句子显得不 协调。把真正的宾语即不定式后移。
三. 不定式的时态: 1.一般时表示的动作, 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表示的 动作之后。 He seems to know this.他似乎知道这事。 I hope to see you again. 我希望再见到你。 2. 完成时表示的动作发生在谓语动词表示的 动作之前。 很抱歉给了你这么多麻烦。
The policeman saw a child play in the street. Don’t make the children do such heavy work. Shall I have him come here? 但是, 改为被动结构后, 应补出省略的to。
The policeman saw a child play in the street. A child was seen to play in the street by the policeman.
4. 作表语 不定式可用作表语,说明主语的具体内容(具体动作或将来动作); 动名词作表语表示抽象的一般行为。 他的梦想是成为一名医生。 His dream is to be a doctor. 我的工作是帮助病人。 My job is to help the patient
5. 作定语 不定式放在被修饰的名词、代词后面,往往 表示未发生的动作。 I have a lot of work to do. She is the first student to come to school. I have some books for you to read. She is looking for a room to live in. There is nothing to worry about.
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)。
英语不定式(短语)用法全解析
英语不定式(短语)用法全解析摘要本文介绍了英语不定式(短语)的定义、形式和用法,并重点分析了不定式(短语)在句中作主语、表语、宾语和补足语的功能和特点。
本文还提供了一些例句和练习题,帮助读者理解和掌握不定式(短语)的用法。
一、什么是不定式(短语)1.1 不定式的定义不定式是动词的一种非谓语形式,在句中不能单独作谓语。
不定式具有动词的性质,它可以有自己的宾语和状语,从而构成不定式短语。
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,可以在句中担任主语、宾语、宾语补足语、表语、定语和状语等成分。
1.2 不定式的形式不定式的基本形式是由不定式符号to+动词原形构成,在某些情况下to也可省略。
不定式还可以有形式的变化,即一般式、进行式、完成式和被动式。
形式结构意义一般式to do表示与谓语动作同时或几乎同时发生,或在谓语动作之后发生的动作进行式to be doing表示正在进行的或与谓语动作同时发生的动作完成式to have done表示在谓语动作之前发生的动作完成进行式to have been doing表示在谓语动作之前发生并且一直进行着的动作被动一般式to be done表示被动意义,即逻辑上的主语是这个不定式表示的动作的承受者被动完成式to have been done表示被动意义,且在谓语动作之前已经完成的动作否定形式not to do表示否定意义,即逻辑上的主语没有做或不会做这个不定式表示的动作二、不定式(短语)在句中的用法2.1 不定式(短语)作主语不定式(短语)具有名词的特征,可在句子中充当主语。
不定式(短语)在句首作主语To know oneself is difficult. 人贵有自知之明。
用it作形式主语在很多情况下,人们通常用it作为形式上的主语,而把不定式(短语)移到谓语之后,使句子结构显得平稳一些。
It's rude to turn your back to your teacher and refuse to answer. 背对着老师,拒绝回答问题是不礼貌的。
英语语法学习:动词不定式用法的9个知识要点集锦
英语语法学习:动词不定式用法的9个知识要点集锦
1. 不定式的形式:
基本形式:“to+动原”
否定形式:“to”前加“not”
疑问形式:“疑问词+to+动原”
被动形式:“to be +过去分词”
完成形式:“to have +过去分词”
关于以上形式的例句:
It began to rain.
Tell him not to come.
What to do is still unknow
I never expect my bike to be found.
Tom seems to have finished his work.
注意,不定式都有“将要做”的暗示,但是在不定式的完成式中,却是“已经做了”。
2. 不定式的功能:
动词不定式可以在句子中作主语、宾语、定语、状语、表语和宾语补足语。
但也有动词的特征,后面可以跟宾语、表语和状语。
不定式的功能:
To see is to believe. (作主语和表语)。
小学英语语法不定式
To’+infinitive(动词不定式) Teaching Points:1.Remember:Infinitives to express actions 用来表达动作动词原形:Subject+verb+‘to’+infinitive(+object)主语+动词+[to]+动词原形〔+宾语〕Examples:They want to drive that car.他们希望驾驶那辆汽车。
Anne likes to eat fruits.安妮喜欢吃水果。
I am learning to play piano.我正在学习弹钢琴。
2.Remember:Infinitives to express actions 用来表达动作动词原形:Subject+verb+object+’to’+infinitive主语+动词+宾语+[to]+动词原形〔+宾语〕Examples:He has a book to read.他有一本书供阅读。
Here is a cup of water to drink.这儿有一杯水供食用。
Exercise 1Underline the correct form of the words in the following sentences.1. Tom likes to (drink, drank) coke.2. Daisy does not like to (eat, ate) vegetables.3. She is learning to (play, played) tennis.4. We are going to (buy, bought) some fresh fruits.5. We want to (bake, baked) some cookies.6. They do not like to (draw, drew) cartoons.7. Brazil failed to (win, won) the World Cup in 1998.8. Are you planning to (wear, wore) that dress tonight Exercise 2Fill in the blanks with the correct words from the box.1. I love pop songs.2. I do not want homework every day.3. They hope French fries for lunch.4. She promised to us when she moves to Singapore.5. John helped his mother dinner.6. After dinner, Albert and Jenny want to a movie.7. He is pretending Superman.8. Her aunt is expecting her by six o ’clock.9. We decided for the next bus instead of taking a taxi.10. Thomas is delivering newspapers some pocket money.Exercise 3Look at the pictures and write the letters in the bubbles.a. Don ’t forget to check your homework before handing it in.b. Do you want to order the chocolate cake or the cheesecakec. Can you help me to buy some eggsd. I like to play badminton.e. Don ’t try to get out of here!f. Please try not to laugh.1. 2.3. 4. 5. 6.Exercise 4Fill in blanks with the correct form of the words in the brackets.1. Football is an interesting game (play).2.’Panda ’ is a good book (read)to do to be to go to sing to arrive to earn to wait to write to eat to cook3. ‘The Sound of Music’ is a good movie (see).4. She does not have a friend (play) with.5. He has got a lot of work (do).6. He does not have any water (drink).7. This is a wonderful place (visit).8. Here’s time-table (consult).ExerciseMake sentences. The first one has been done for you.1. (a lot of newspapers/read)He has a lot of newspapers to read.2. (a lot of fruits/eat)He3. (many dresses/wear)She4. (a towel/wash my face with)I5. (some milk/drink)The cat6. (many toys/play with)Exercise 5Look at the picture below and fill in the blanks with the correct words from the box.Lisa: I’ll blow enough balloons for our friends 3) with.Albert: I’ll get some good music 4) .Lisa: Don’t forget to include some music 5) .Albert: We have a lot of things 6) ! Let’s get going!。
小学-英语的不定式和动名词
不定式和动名词一、动词不定式:构成:to + 动词原形(to只是不定式符号,没有意义)1.. 常见的跟不定式作宾语的动词有:agree 同意, begin /start 开始, decide 决定, forget 忘记, hate 憎恨, hope 希望, learn 学会,like 喜欢,love 喜爱, need 必要, remember 记得, try 设法, want 想要, wish 希望, would like想要2. 下列动词跟动词不定式充当宾语补助语:want 想要, wish 希望, ask 问, tell 告诉, help 帮助, wait for 等待, invite 邀请She told me to buy a ticket.她让我去买张票3.动词不定式省to的情况A.一感feel ,二听hear, listen to ,三使have, let, make, 四看see, watch, look at, notice二、动名词(动词+ing)作用相当于名词1. Reading is an art. 读书是一种艺术。
a washing machine 洗衣机, a reading room 阅览室2. 下列动词只能接动名词(即动词+ing)enjoy doing sth, 喜欢做某事mind doing sth 介意做某事,practice doing sth 练习做某事finish doing sth 做完某事feel like doing sth 想要做某事keep doing sth 坚持做某事be used to doing sth 习惯做某事spend…(in) doing sth 花费时间做某事have fun doing sth 尽情做某事have a good time doing sth 做某事很快乐prefer doing sth to doing sth 与…相比更喜欢做某事can’t help doing sth 情不自禁做某事look forward to doing sth 盼望做某事pay attention to doing sth 注意做某事三、不定式与动名词的比较1.有些动词后面既可接不定式,也可接动名词,意义不变。
不定式用法小结
一、语法功能
(一)、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. (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 do It's our duty to take good care of the old. ②It takes sb+some time+to do How long did it take you to finish the work? ③It+be+形容词+for sb+to do It is difficult for us to finish writing the composition in a quarter of an hour. ④It+be+形容词+of sb+to do It is stupid of you to write down everything (that) the teacher says. ⑤It seems(appears)+形容词+to do It seemed impossible to save money.
英语语法:动词的不定式的用法记忆口诀
英语语法:动词的不定式的用法记忆口诀
英语语法顺口溜:动词的不定式的用法记忆口诀
动词的不定式:
①不定式有标记,to与动词连一起。
②没有人称数变化,动词特点它具备。
③主宾定状表补语,唯独作谓不能够。
④not 加上不定式,否定结构要牢记。
⑤疑问词与不定式,构成短语有意义。
⑥仔细推敲多思考,准确判断有依据。
解析:
①“to+动词原形”是它的基本构成形式,即不定式的标记。
②它没有人称和数的变化,不管主语是任何人称,单数还是复数,动词不定式都没有变化。
但它仍保留动词的特点,能够有自己的宾语
或状语。
③它具有名词、形容词和副词三大特点,所以,它在句中能够作
主语、宾语、定语、表语、状语和宾补。
④“not +动词不定式”是它的否定形式,不要受其他否定式的
影响,要记住规律。
⑤疑问代词what, who, whom, which和疑问副词where, when, why , how加上不定式在句中能够做主语,宾语、表语、状语。
⑥通过以上分析,只要仔细研究,把不定式的功能用法搞清楚,
在应用时就能作出准确的判断。
动词不定式的用法小结
动词不定式的用法小结动词不定式是英语语法中的一个重要部分,它具有多种用法,灵活多样。
接下来,让我们详细了解一下动词不定式的常见用法。
一、作主语动词不定式作主语时,通常表示具体的、一次性的或将来的动作。
例如:“To learn a foreign language well is not easy”(学好一门外语不容易。
)此时,为了避免句子头重脚轻,常用 it 作形式主语,而将真正的主语动词不定式后置,如:“It is not easy to learn a foreign language well”二、作宾语1、有些动词后只能接动词不定式作宾语,常见的这类动词有:agree(同意),decide(决定),hope(希望),manage(设法),pretend(假装),plan(计划),want(想要),wish(希望)等。
例如:“I decided to go shopping this afternoon”(我决定今天下午去购物。
)2、动词+疑问词+动词不定式。
常见的动词有:know(知道),learn(学习),show(展示),wonder(想知道),understand(理解)等。
例如:“I don't know what to do next”(我不知道接下来做什么。
)三、作宾语补足语1、一些动词如 ask(要求),tell(告诉),want(想要),wish (希望),teach(教),allow(允许)等后面常接带 to 的动词不定式作宾语补足语。
例如:“My mother asks me to clean my room every day”(我妈妈要求我每天打扫房间。
)2、使役动词 let(让),make(使),have(使,让)以及感官动词 see(看见),hear(听见),feel(感觉),watch(观看),notice (注意)等后面接不带 to 的动词不定式作宾语补足语。
最全面英语动词不定式的用法归纳整理总结
最全面英语动词不定式的用法归纳整理总结英语动词不定式的用法有以下几种:1.作为动词的宾语:- I want to go to the store.(不定式作为动词go的宾语)- He likes to play tennis.(不定式作为动词play的宾语)2.作为形容词的补语:- She is excited to see her friends.(不定式作为形容词excited的补语)- He seems to be a nice person.(不定式作为形容词nice的补语)3.作为介词的宾语:- She apologized for being late.(不定式作为介词for的宾语)- They are interested in learning Chinese.(不定式作为介词in的宾语)4.作为状语:- I work hard to improve my English.(不定式作为状语表目的)- They went to the park to play basketball.(不定式作为状语表目的)5.作为主语:- To study is important for success.(不定式作为主语)- To be or not to be, that is the question.(不定式作为主语)6.作为条件状语从句的口述形式:7.作为动词的补语:- They considered him to be the best candidate.(不定式作为动词consider的补语)- We elected her to be the team captain.(不定式作为动词elect的补语)8.作为状语从句的口述形式:- He woke up early in order to catch the train.(不定式作为状语从句的口述形式)9.作为表语:需要注意的是,不定式的肯定形式一般由to加动词原形构成,否定形式则在to后面加not构成。
小学英语教学-不定式
动词不定式肯定形式:to+动词原形;否定形式 not to do动词不定式的用法:一、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.(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 do It's our duty to take good care of the old.②It takes sb+some time+to do③It+be+形容词+for sb+to do④It+be+形容词+of sb+to do⑤It seems(appears)+形容词+to do注意:1)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。
2) 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.百闻不如一见。
(错)It is to believe to see.二、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), ask(要求)choose(决定),decide(决定),expect(期待),fail(未履行),help(帮助),hope(希望),learn(学会),manage(设法),offer(主动提出),plan(计划),prepare(准备),pretend(假装),prove(证明),refuse(拒绝),seem(觉得好像),want(想要),wish(希望)等举例:The driver failed to see the other car in time. 司机没能及时看见另一辆车。
不定式的用法总结
6. 作状语 目的状语: 常用的结构—to do; in order to do, so as to do, so/ such …as to do, etc.
I come here to say good-bye to you.
结果状语: 常与only , enough 或too连用。
He studied hard only to fail the exam.
tell, invite, cause, encourage, warn, advise,
persuade, force, order, remind, teach, 等.
在主动结构中, 下列动词后作宾补的动词不定式应 省略to: ―五看”(see, watch, notice, observe, look at) ―三使”(make, let, have) ―两听”(hear, listen to) ―一感觉”(feel)。 e.g. Who made him work all night long? The policeman saw a child play in the street. Don’t make the children do such heavy work. Shall I have him come here?
I want to go home. The workers demanded to get better pay. I found it necessary to talk to him again. think/consider/feel/find it + adj.+ to do
点击规律:在find \ feel \ think\ consider + it + adj.+ to do sth.句型中,it是形式宾语,
动词不定式要点归纳
动词不定式要点归纳一、不定式作主语1. 单个不定式以及两个或两个以上疑问词+不定式作主语,谓语动词都用单数。
When and where to build the new factory is not decided yet.2. 不定式作主语时,常用it 作形式主语,而将不定式后置。
Is it necessary to complete the design before National Day?3. 不定式的复合结构用for/of sb. to do sth. 表示。
这一句型中的介词用for 还是of ,取决于前面的形容词。
如形容词是表示容观情况的easy , difficult , hard , important , necessary 等时用for ;如形容词是表示人的特征、状态、或性质的foolish , silly ,stupid, clever , wise , kind , nice , lazy , polite ,impolite, careless , honest, brave, proud 等时用of 。
如:It is important for us to learn a foreign language.It was foolish of you to give up what you rightly owned.二、不定式作宾语1. agree, ask, beg, choose, decide, expect, fail, force, hope, learn, long, manage, offer, plan, prepare, pretend, promise, refuse, want, wish, would like, should love 等动词(短语)后只能跟不定式作宾语。
We agreed to meet here but so far she hasn't turned up yet.2. 以下动词(短语)既可跟不定式也可跟动名词作宾语,但含义不同。
不定式的用法
不定式的用法不定式是英语语法中的一种非限定性动词形式,其特点是前面有to,并且在句中可作主语、宾语、表语、定语或状语等。
本文将探讨不定式的各种用法以及相应的例子。
一、不定式作主语1. 不定式作主语常跟在it is +形容词/名词 + to do结构后面,表示抽象的、一般性的意义。
例如:- It is important to learn English well.(学好英语很重要。
)- It is my dream to travel around the world.(周游世界是我的梦想。
)2. 不定式作主语时,常有些动词后面可以直接接不定式作主语,如:afford, decide, hope, learn, need等。
例如:- To learn a foreign language is beneficial.(学一门外语是有益的。
)- To travel alone requires courage.(独自旅行需要勇气。
)二、不定式作宾语1. 很多动词后面可以接不定式作宾语,如:want, hope, plan, need, like, love等。
例如:- I want to go shopping this afternoon.(我想今天下午去购物。
)- She likes to read books in her free time.(她喜欢在空闲时间读书。
)- They need to finish the project before Friday.(他们需要在星期五之前完成这个项目。
)2. 动词后面若接不定式作宾语,可能会带有从句的结构,如:decide, believe, know, think, expect等。
例如:- He decided to go home after he finished work.(他决定下班后回家。
)- I believe the best way to learn English is to practice more.(我相信学习英语的最佳方式是多加练习。
不定式用法归纳全
to be lost. (强调物)(谁 lost time不明确)。
B ,There is nothing to do now. (=We have nothing to do now. ) 现在没事干(强调人)。
There is nothing to be done. (=We can do nothing now. ) 现在没办法了(强调物)。
(1)I have some work to do
I have a letter to be typed.
to do是前面一个名词(常是人)发出的动作;
to be done不是前面名词(人) 发出的动作,是句子外的 其他人发出的动作。
试比较: Have you anything to do this afternoon?
(2)能带宾补的动词还有 consider sth/sb to be(宾补), expect sb to do, tell sb to do, want sb to do, warn sb not to do, wish sb to do, invite sb to do等。
区别 I have some work to do(定语,后讲). (去掉不定式对句义影响不大) The manager get him to finish the task
不定式的时态语态?不定式都表发生在过去或现在的将来目的或结果有各种时态和语态?一般式todotobedone?完成式tohavedonetohavebeendone?进行式tobedoing?完成进行式tohavebeendoing?根据语境来判断该用何种时态和语态?一一般式表示动作通常与句子谓语所表示的动作或状态几乎同时发生或是在它之后发生
小学英语不定式用法总结
不定式作主语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 you 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. 百闻不如一见。
(错)It is to believe to see.不定式作状语1)目的状语To…only to (仅仅为了), in order to, so as to, so(such)…as to…(如此……以便……)He ran so fast as to catch the first bus. 他飞快地跑以便赶上第一班车。
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不定式作主语
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 enough
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.
当你不用车的时候,锁车是有必要的。
2) It's very kind of you 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. 百闻不如一见。
(错)It is to believe to see.
不定式作状语
1)目的状语
To… only to (仅仅为了), in order to, so as to, so(such)… as to… (如此……以便……)
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,表事先没有预料到的,要放在句子后面。
What have I said to make you angry.
He searched the room only to find nothing.
3) 表原因
I'm glad to see you.
典型例题
The chair looks rather hard, but in fact it is very comfortable to ___.
A. sit
B. sit on
C. be seat
D. 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。
不定式作补语
1) 动词+宾语+不定式(to do)
advise allow appoint believe cause challenge command compel consider declare drive enable encourage find
forbid force guess hire imagine impel induce
inform instruct invite judge know like order
permit persuade remind report request require select send state suppose tell think train trust understand urge warn
例句:
a. Father will not allow us to play on the street.
父亲不让我们在街上玩耍。
b. We believe him to be guilty.
我们相信他是有罪的。
Find 的特殊用法:
Find 后可用分词做宾补,或先加形式宾语,再加形容词,最后加带to 的动词不定式。
find后也可带一个从句。
此类动词还有get,have。
I found him lying on the ground.
I found it important to learn.
I found that to learn English is important.
典型例题:
The next morning she found the man ___ in bed,dead.
A. lying
B. lie
C. lay
D. laying
答案:A.find的宾语后面,用分词或分词短语,起宾语补足语作用。
现在分词表达主
动,也表达正在进行,过去分词表达被动。
2) to + be 的不定式结构,作补语的动词。