(完整版)初中英语动词不定式用法小结
初中英语动词不定式用法小结
动词不定式是动词的一种非谓语形式，又叫非谓语动词，它没有人称和数的变化，在句子中不能做谓语；它由“to+动词原形”构成，这里的to是动词不定式符号，本身没有词义，其否定形式常在to前加not；由于它仍保持动词的特点，可以有自己的宾语和状语，还可以带疑问词和由for引出其逻辑主语等形成动词不定式短语；不定式或不定式短语具有名词、形容词和副词的特征，在句子中可作主语、表语、宾语、宾语补足语、定语和状语等句子成分。为使同学们更好地掌握其用法，现总结如下：
一、动词不定式作主语
动词不定式作主语时，为避免句子的头重脚轻，常用it作为形式主语，而真正的主语动词不定式后置。如要说明动作的执行者，可在不定式前加for引导的短语；但如果表语是nice, kind, clever等描述动作执行者的性格、品质的形容词时，则应在不定式前加of引导的短语。常用句型:It+be+adj./n.+(for/of sb.) to do sth./It takes sb. some time to do sth.
二、动词不定式作宾语
一些动词，如want, decide, hope, ask, agree, choose, learn, plan, need, teach, prepare,等，常接动词不定式作宾语。当动词不定式作宾语时，如果后接宾语补足语，常用it作形式宾语，而把真正的宾语放在宾语补足语之后。应注意有些动词后面可接不定式作宾语，也可接动名词作宾语，但所表达的意义例外。多见的有：（1）stop to do sth.停止正在做的事，去做另一件事；stop doing sth. .停止正在做的事（2）go on to do sth.做完一件事后，继续做另一件事；go on doing sth.继续做同一件事（3）remember/forget to do sth.记住／忘记去做某事；remember/forget doing sth.记得／忘记做过某事
三、动词不定式作定语
动词不定式作后置定语时，与被修饰的名词逻辑上有动宾关系。如果动词不定式是不及物动词时，则要带上与之搭配的介词，构成及物动词短语。动词不定式作后置定语常用于“have/has＋某事＋to do”或“enough＋名词＋to do”“It’s time to do sth.”等结构中。
四、动词不定式作宾语补足语
有些动词，如tell, ask, want, invite, teach, like, call等可接带to的动词不定式作宾语补足语，构成tell/ask/want /call/invite sb. to do sth.结构。应注意动词不定式作使役动词和感官动词的宾语补足语时应省去to，在被动语态中应加上to。这些动词可归纳为“一感(feel)，二听(listen to, hear)，三让(let, make, have,，四看(look at, see, watch, notice)，半帮助(help)(即在动词help后面作宾语补足语时，to可有可无)”。另有口诀帮助记忆：“感使动词真奇怪，to在句中像妖怪，主动句中to离开，被动句中to回来。”(let不用于被动语态)
五、动词不定式作状语
动词不定式作状语主要用来修饰动词，表示目的，结果或原因。为了强调目的，有时可以把动词不定式放在句首，或在不定式前加in order或so as。常用结构有too + adj./adv. + to dosth.等。
六、不变句式中动词不定式的用法
在不变句式中对不定式的考察多见的有：had better (not) do sth./Would you like to do sth.?/Whynot do sth.?/Would you please (not) do sth.?等。
动词不定式专项训练题：
一、单项选择。
1. _______ is difficult to work out the maths problem.
A. This
B. That
C. It
D. Its
2. We decided _______ at the end of this month.
A. travel
B. not start out
C. to leave
D. going
3. They have no paper_______.
A. to write
B. to write with
C. write onD .to write on
4. Let him _______ a rest. I think he must be tired after the long walk.
A. has
B. have
C. to have
D. having
5. _______the computer is a problem.
A. How to use
B. What to use
C. Where to use
D. Which to use
6. The teacher told us _______in bed.
A. don’t read
B. read not
C. to not read
D. not to read
7. The old man was _______angry _______ say a word.
A. so, that
B. as, as
C. too, to
D. very, to
8. Why _______home tomorrow?
A. not go
B. not going
C. not to go
D. didn’t go
9. The TV set is too loud. Will you please _______?
A. turn down it
B. turn it down
C. to turn it down
D. to turn down it
10. It’s cold outside. You had better _______ your coat.
A. to put on
B. putting on
C. puts on
D. put on
二、用所给动词的正确形式填空。
1. It took half an hour _______(get) to the World Park from Kitty’s school.
2. It was interesting _______(see) so many places of interest from all over the world.
3. They want _______(save) time by using shorter words and phrases.
4. Kitty’s cl assmate Daniel taught himself how _______(make) a home page.
5. Things _______(do) in Beijing
6. He put his photos on it for everyone _______(look) at.
7. Help him _______(put) the photos in the correct order.
8. He made the girl _______(cry) yesterday.
9. It’s time for class. Please stop _______(talk).
10.I’d like _______(go) to the Temple of Heaven.参考答案：
一、1—5 CCDBA6—10 DCABD
二、1. to get2. to see3. to save4. to make5. to do
6. to look
7. (to)put
8. cry
9. talking10. to go
不定代词和动词不定式用法小结
不定代词的用法 1.代替或修饰不特指的人或事物的代词叫不定代词 2.some与any的区别 1）some多用于肯定句，表示“一些，几个”，可修饰不可数名词和可数名词的复数形式。any 多用于疑问句、条件句和否定句中，表示“一些”，可修饰不可数名词和可数名词的复数形式 2）在反问句、疑问句中，表示请求、建议和希望对方得到肯定回答时，多用some. Would you like some beer？你要不要来点啤酒吗？ Why didn’t you buy some sweets？你怎么没买点糖果？ 3）any 用于肯定句时,表示是“任何的” Come any day you like.你哪天来都行。 3）some还有表示“某个”的意思 I’ll catch up with you some day有一天我会赶上你的。 3.复合不定代词：something(某事), someone(某人), somebody(某人), anything(任何事), anyone(任何人), anybody(任何人), nothing(没事),nobody(没有人), no one(没有人), everything(一切), everyone(每个人), everybody(每个人). A：作主语时，谓语动词用单数。Is there anything wrong with your watch?”“No, nothing is wrong with it B：修饰复合不定代词的形容词或不定式一定要位于它们的后面。 This is something special. 这是种特别的东西。 Haven’t you got anything to do? 你无事可干吗？ C：一般来说，当主语是指人的复合代词，如everybody, nobody, anybody 等时，其反意疑问句后面的主语通常用代词they；当前面句子中的复合代词指物，如everything, something, anything, nothing 等时，其反意疑问句后面的主语通常用代词it。如：Everyone is here, aren’t they? 人都到了，是吗？ Everything is ready, isn’t it? 一切准备好了，是吗？ Somebody is waiting for me at the gate, aren’t they? 有人在门口等我，是吗？ 3.few, a few, little, a little在用法上的区别 1）few、little意思是“很少几个”、“几乎没有”,有否定的意思,a few、a little意思是“有几个”、“有些”,有肯定的意思；few、a few修饰可数名词或代替可数的事物, little、a little修饰不可数名词连用或代替不可数的事物。 He is very poor and he has little money. 他很穷,几乎没有什么钱 Don’t worry. There is st ill a little time left. 别着急,还有一点儿时间呢 In that polar region there live few people. 在那个极地地区几乎不住人 You can get a few sweets from him. 你可以从他那儿弄到一些糖果 2）a little和little也可以用作副词，a little表示“有点，稍微”，little表示“很少”。 I'm a little hungry. Let him sleep a little. 3）quite a few (相当多)only a few (只有几个，几乎没有) 4、all和both, either的用法 1）all 指三者或三者以上的人或物,用来代替或修饰可数名词或不可数名词。both指两个人或物,用来代替或修饰可数名词 All the food is delicious.所有的食物都很好吃。 Her parents are both doctors.她父母都是医生
初中动词不定式用法及练习
动词不定式用法及练习 动词不定动式是一种非谓语动词形式，它没有人称和数的变化，在句子中不能作谓语，但可以作除谓语之外的其它任何句子成分（主语、表语、宾语、宾语补足语、定语和状语）；动词不定式具有名词、形容词和副词的特征，同时还保持动词的某些特点，既可以有自己的宾语和状语，动词不定式和它的宾语和状语构成不定式短语。 构成：to do .否定式not to do 常见时态：一般时to do 进行时to be doing 完成式to have done 完成进行式to have been doing 三、动词不定式在句子中的成分 1、作句子的主语：现实中常用it作形式主语，而把真正的主语动词不定式（或短语）后置。 比较下列句子To learn from your friends is important.=It is important to learn from your friends . To leave without saying goodbye is impolite.= It is impolite to leave without saying goodbye. To chat with Miss White is a pleasant thing.=It is a pleasant thing to chat with Miss White. To walk to school takes me ten minutes.=It takes me ten minutes to walk to school. 句型总结 It is + adj. + of sb. to do…= sb. is\are +adj. +to do…在以某些表示人的品质、特征等的形容词（如kind、good、nice、wrong、clever、right等）作表语时，不定式之前常加一个引起的短语，说明不定式指的是谁的情况。（可以理解为某人的好，坏，聪明，愚蠢，对，错等等） It is very kind of you to help me. It’s not polite of him to speak to old people like that. It is + adj. + for sb. to do…≠ sb. is\are +adj. +to do…如果要说明不定式表示的动作是谁做的，则在不定式前加一个for引起的短语，即不定式的逻辑主语。 It is necessary for us to study hard. It is easy for him to speak English. 2、作句子的表语：不定式放在be 动词后面，用作表语如： Her dream is to be a policeman. My job is to help the patient. Your task is to clean the classroom. My dream is to own a robot. The doctor’s suggestion is to take more exercise. The best way is to talk to your parents. His plan is to travel to Beijing this summer. My purpose is to help you solve this problem. 3、作句子的宾语：不定式放在及物动词后，用作宾语。能跟不定式作宾语的动词（及物）很多，常见的有want, like, hate, wish, hope, prefer, try, ask, start, begin, decide, learn, choose, agree, expect, remember, forget, plan, decide, would like, need, choose, agree, promise, refuse, set out, manage, pretend, I want to go home. The workers demanded to get better pay. They began to read and write. She forgot to close the door. He wanted to borrow my CD player. I hope to speak English well. The workers demanded to get better pay. I hope to hear from you soon. John doesn’t want to be the host of the charity show. They are trying to solve the problem by himself. Millions of people have learned to use computers.
动词不定式用法归纳
动词不定式用法归纳 动词不定式没有人称和数的变化，在句中不能独立作谓语。但动词不定式具有名词、形容词和副词特征，在句中可以作主语、宾语、宾语补足语、定语、表语和状语等多种成分。另外，动词不定式具有动词特点，可以有自己的宾语和状语，组成动词不定式短语。动词不定式的肯定形式是to＋do；其否定形式是not to＋do。 1．作主语 可以直接作主语。如： To see is to believe． 但在英语中，常用it作形式主语，真正的主语即动词不定式放在后面。如： It's wrong to play tricks on other people． It's our duty to keep our environment clean and tidy．（Lesson 10）． 点击规律：动词不定式在句中作主语时，常放在It is ＋adj．（形容词）＋to do sth．或 It is ＋n．（名词）＋to do sth．句型中，it仅作形式主语。 2．作宾语 a.以下动词只能to do 作宾语。 attempt企图 enable能够 neglect忽视 afford负担得起 demand要求 long渴望 arrange 安排 mean意欲，打算 begin开始 expect期望 appear似乎，显得 determine决定 manage设法 cease停止 hate憎恨，厌恶 pretend假装 ask问 need需要 agree同意 desire愿望 love爱 swear宣誓 volunteer志愿 wish希望 bear承受 endeavor努力 offer提供 beg请求 fail不能 plan计划 bother扰乱；烦恼 forget忘记 prefer喜欢，宁愿 care关心，喜欢 happen碰巧 prepare准备 decide决定 learn学习 regret抱歉，遗憾 choose选择 hesitate犹豫 profess表明 claim要求 hope希望 promise承诺，允许 start 开始 undertake承接 want想要 intend想要 refuse拒绝 decide决定 learn学习 contrive设法，图谋 incline有…倾向 propose提议 seek找，寻觅 try试图 b．love，like ，begin，start，hate ，prefer等词后面可以接不定式。 点击规律：上述动词后面除接不定式外，还可以接动名词，意思无很大区别。 提示板：like doing指经常性动作，而like to do指一次性的动作。如： I like swimming，but I don't like to swim now．我喜欢游泳，但我现在不想游。 c．stop，forget，remember，go on ，try等词或短语后面可以接不定式。 点击规律：上述动词后面接不定式和接动名词意思大不相同。 1）stop to do sth．：停止一件事，去做另一件事。 stop doing sth．：停止正在做的事。 例句：When the teacher came in，the students stopped talking；when he came out，the students stopped to talk． 当老师走进来时，学生们停止说话；当老师走出去时，学生们又开始说话。 2）思考：forget，remember，go on，try等词或短语后面接不定式和动名词用法有何区别d．在find／feel＋it＋adj．＋to do sth．句型中，it是形式宾语，真正的宾语是后面的动词不定式。如： The man downstairs found it difficult to get to sleep． I feel it easy to recite the text． 点击规律：某些动词或短语后面既可以接动词不定式作宾语，又可接动名词作宾语，二者用法上的区别可以通过造句子加以区分，如上面stop例句。 3．作宾语补足语 a．下面的动词要求不定式做宾补：动词+宾语+动词不定式 ask要求，邀请 get请，得到 prompt促使 allow允许 forbid禁止 prefer喜欢，宁愿 announce
初中英语动词不定式用法梳理
八年级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。 一、用作主语 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。如： 1. I t is our duty to try our best to deal with these problems. 2.The head teacher said it was necessary to talk with his mother. 3.How to learn English well is important. 4.To see is to believe.(眼见为实；百闻不如一见) 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。如： 1.The best way is to join an English club. 2.The first thing is to listen to the teacher carefully. 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)。如： 1)We decided to talk to some students about why they go there. 2)He prefers to eat white bread and rice. 3)Id love to visit Mexico.
不定式的特殊用法小结
不定时的用法 to do 的其它用法： 1. 时态和语态形式to do/to be done/to be doing/to have done/to have been done/to have been doing (1) 一般式表动作通常与谓语动词所表动作同时或在其后发生; 进行式表动作与谓语动作同 时进行；完成式表动作发生在谓语动作之前; pretend / believe /say/seem/happen/prove/plan/hope/expect/should like/would like + to have done 表未曾实现的行为; 完成进行式表动作在谓语动作之前已开始并一直进行着，到说话时为止，该动作可能停止，也可能还在继续。 People began to wonder how long the disaster would last. The children pretended to be reading aloud when the teacher came in. I didn’t expect you to be waiting for me so long. The crowd cheered wildly at the sight of Liu Xiang, who was reported to have broken. the world record in the 110- metre hurdle race. He’s said to have written a new novel. I would like to have had your help. I hoped to have seen her . He planned to have gone abroad. He was said to have been living in New York for twenty years. (1)主动式表逻辑主语为不定式动作的执行者；被动式表逻辑主语是不定式动作的承受者。 I hope to finish reading the book tonight. We are invited to a party to be held in our club next Friday. 2.to do 的主动表被动 (1)to do 作定语与被修饰词构成动宾关系，同时又和句子主语构成主谓关系。 I have a lot of papers to deal with. (2) be + 性质adj. + to do . easy/hard/difficult/interesting/heave/pleasant/comfortable/safe/dangerous/impossible Tom is pleasant to work with. This book is difficult to understand. I like getting up very early in summer. The morning air is so good to breathe. (2)be + let /blame/ seek It seemed that water was to blame. The cause isn’t far to seek. The house is to let. (3)wh- + to do I had no idea who to turn to for help the time I lost. How to divide labor among them is still a question. (5) there be + 主语+ to do 中，当强调某人完成某事时用主动形式；当强调某事必须被完成用被动形式。 There’s many work to do. (sb. has to do the work. )/ to be done.(the work has to be done.) 3.to do 的逻辑主语是其所表动作的承受者时用被动。 It’ an honor for me to be invited to the party. The books and mag azines aren’t allowed to be taken out of the reading room. I wanted the letter to be typed at once She asked to be assigned to do a heavy job. 4.如果逻辑主语没出现，只要意义是被动的，to do仍用被动。 It’s great honor to be elected a delegate to the Party. To be attacke d by the enemy isn’t a bad thing but a good thing. 5.to do中动词的省略，只保留to . (1)to do作某些动词的宾语时：当作宾语的不定式再次出现时，为避免重复，只留to. afford/ agree/ expect/ forget/ hate/ hope/ intend/ mean/ plan/ prefer/ refuse/ try/ want/ wish/ would like/ love/ care
英语动词不定式的完成式用法小结
英语动词不定式完成式在使用语境中的学习与考查 江苏省沛县湖西中学鹿俊先221611 综观近年的英语高考试题，我们可以看到题目的设置往往强调语言知识在特定语境中的使用，把语言知识放在了语用层面上，即考察实际应用知识的能力。 英语动词不定式的完成式，即(to) have +动词的过去分词形式，是中学英语学习中的重点及难点知识之一，也是高考试题中频繁出现的形式。对于这一形式考查的题目设置通常围绕三类语境，即陈述已经发生过了的事实，推测可能已经发生过了的事实，表达与过去实际情况相反的事实。下面分别加以叙述，以便从语用角度掌握这一语言知识。 1.陈述已经发生过了的事实。 1.1.置于表示情感反应的动词、形容词、分词之后，作为引起该反应的刺激，表示情感反应之前完成的动作。例如： I'm sorry to have given you so much trouble. (=I'm sorry that I gave / have given you so much trouble.) It is good to have finished work for the day. (=I am pleased because I have finished.) She said she was sorry to have missed you. (=She said she was sorry that he had missed you.) There was a smile on the boy's face, which seemed to show that he was happy to have given his life to his country. (=…he was happy that he had given his life to his country.) 1.2.置于be said, be considered, be believed, seem, appear, happen, turn out,等之后表示这些动作之前完成的动作。例如： I don't know whether you happen to have heard, but I am going to study in the U.S.A. this September. Charles Babbage is generally considered to have invented the first computer. (=It is generally considered that Charles Babbage invented the first computer.) He is said to have studied abroad, but I don't know which country he studied in. (= It is said that he studied abroad, b ut….) I appear to have made a small mistake. (=It appears that I made / have made a small mistake.) He seems to have missed the train. (=It seems that he missed the train.) 1.3.置于should之后，表达说话人对已发生了的事实的情感的反应，如惊奇、遗憾、喜悦、不安、失望，等，should相当于汉语中的“竟然”，“居然”。例如：They were surprised (that) a child should have worked out the problem while they themselves couldn't. It is strange that she should have married such an old man. 2.推测可能已经发生过了的事实。 2.1.置于must, will, would, can't, couldn't 之后，表示很有把握的推论。例如： The city must have been prosperous, for it enjoyed a high level of civilization. An ambulance is waiting in the street. Somebody must have been hurt or killed. --I met her soon after the war.
初中英语语法精讲动词不定式用法(教案)
动词不定式用法 动词不定式没有人称和数的变化，在句中不能独立作谓语。但动词不定式具有名词、形容词和副词特征，在句中可以作主语、宾语、宾语补足语、定语、表语和状语等多种成分。另外，动词不定式具有动词特点，可以有自己的宾语和状语，组成动词不定式短语。动词不定式的肯定形式是to＋do；其否定形式是not to＋do。 下面以动词不定式在句中的作用来予以详细说明。 1．作主语 可以直接作主语。如：To see is to believe． 但在英语中，常用it作形式主语，真正的主语即动词不定式放在后面。如： It's wrong to play tricks on other people． It's our duty to keep our environment clean and tidy． 点击规律：动词不定式在句中作主语时，常放在It is ＋adj +(for sb.)＋(not)to do sth句型中，表示说话人对客观事件的决断，意为：做…..是……的，it仅作形式主语，真正的主语是to do sth It is very interesting to read.读书是有趣的 It is useful to read.看书是有用的 It is healthy to run every day.每天跑步是健康的 It is a little difficulty for me to work out this question.解出这道题对我来说有点难 It is bad not to finish homework.不完成作业是糟糕的 It is bad to be late for school.迟到是糟糕的 It is+adj+of sb +(not)to do sth该句型通常表示说话人对客观事件的惊讶、兴奋、懊悔、难过等感叹情绪，与It is ＋adj +(for sb.)＋(not)to do sth的意义不同。 It is very kind of you to tell me the truth．你能告诉我事实，真是太好了 It is stupid of him to do such a silly thing．他做那件傻事，真是太笨了 It is very clever of you to work out this question. 你能解出这道题目，真是太聪明了 It is very wise of you to read this novel. 你看这本小说，真是太明智了 这个句型中用介词of而不是for的原因是这里的形容词是用来形容人的品质性格的。 类似的词有：careless，careful，clever，considerate，foolish，good，impolite，kind，naughty，nice，silly，stupid，friendly 因此区分是用It is ＋adj +(for sb.)＋(not)to do sth还是It is+adj+of sb +(not)to do sth，要
初中英语动词用法总结
初中英语动词用法总结-CAL-FENGHAI.-(YICAI)-Company One1
初中英语高频动词用法汇总 2017-01-05 期末考试马上就到了，当同学们每次遇到选填 to do, doing 还是 do 形式的题目时，脑海中的反应大概都是“to do 好像通，不对，应该是 doing，还是填原形do 呢” 下面这些初中阶段高频出现的一些动词用法，让你从此告别看到 to do, doing, do 就一脸懵的囧状。 加 to do 的高频考察动词 1. afford to do 负担的起做某事 We can’t afford to make any mistakes.我们承担不起任何失误。 2. agree to do 同意做某事 Do you agree to have dinner today? 今天你同意一块吃饭吗？ 3. choose to do 选择做某事 Why do so many choose to leave their country? 为什么有这么多人要离开祖国 4. decide to do 决定做某事 She decided to accept the offer. 她决定接受这一提议。 5. expect to do 期待做某事 The shop expects to make more money this year. 这家店铺期望今年多赚点钱。 6. hope to do 希望做某事 I hope to see you again sometime next year. 我希望明年某一时候再见到你。 7. hurry to do 急忙做某事 We shall have to hurry to get there in time. 我们将不得不及时赶到那。 8. manage to do 设法做成某事 How do you manage to do such a thing? 你是怎么设法做这样的事 9. plan to do 打算做某事 Where do you plan to spend your holiday? 你打算去哪里度假？ 10. prefer to do 宁愿做某事 I prefer to travel in the front of the car. 我宁愿坐在汽车的前面。 11. refuse to do 拒绝做某事 I refuse to answer that question. 我不愿回答那个问题。
be+不定式的用法小结
be+不定式的用法小结 be＋不定式是英语中常见的一种结构，关于它的用法现在总结如下： 一、构成系表结构： 1、表示目的，例如： The prize was to honour him for his great discoveries. 这项奖励是为了对他的重大发现而表示的敬意。 2、对主语内容进行解释说明，例如： What you should do is (to) answer my questions. 你所应该做的就是回答我的问题。 二、表示将来： 1、表示按计划安排要发生的事情，例如： The president is to visit China next year. 总统将于明年访问中国。 If we are to be there in time, we'll have to hurry up. 如果我们想及时到达那里，就必须要赶快。 注：我们可以说：It's going to rain. 但不能说：It's to rain. 2、表示无法预见的结果或注定要发生的事情，例如： Better days are soon to follow. 好日子就要到了。 三、构成虚拟语气： 1、were to do 用于虚拟条件句中，表示对将来情况的虚拟。例如：What would you do if war were to break out? 假如战争爆发你会怎么做？
2、was/were+不定式的完成式（＝should+不定式的完成式）表示过去应该发生而未发生的动作，例如：We were to have been married last year。 我们本打算去年结婚的。 四、be 后的个别动词不定式的主动形式表示被动意义，例如： It's Jim who is to blame. 该怪的是吉姆。 This house is to let. 此房出租。 五、其他用法： 1、表示命令，指令。例如： You are not to bring any mobile communication means into the exam-room. 任何移动通讯工具都不得带入考场。 2、表示必须，必要。例如： This letter is to be handed to him in person. 这封信必须要面交他本人。 3、表示能够或可能发生的事情，例如： How are we to convince him? 我们怎么能够说服他呢？ 4、表示应该，例如： Such questions are to be avoided. 这样的问题应该避免。
动词不定式用法经典例句总结知识分享
动词不定式用法例句总结
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 exam in ed. （不定式作状语） My work is to clea n 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 noth ing to do now.（ We have nothi ng to do no w.） There is nothing to be done no w.（We can do nothing no w.） 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 sth He seems to know this. I hope to see you aga in. = I hope that r II see you aga in. 我希望再见至M尔。 2）完成式：表示的动作发生在谓语动词表示的动作之前。 rm sorry to have give n 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 eat ing someth ing. 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 语等。如： ①W hen to leave for London has not bee n decided yet. ② Mr. Smith did n't know whether to leave or stay there. ③ I asked Professor Xu how to lear n En glish well. ④The questi on was where to get the medici ne n eeded. 以上例句中疑问词+不定式部分，均可转换为相应的 could lear n ......... 后可接不定式构成不定式短语，在句中作主语、宾语、表 （不定式在句子中做主语） （不定式在句子中做宾语） （不定式在句子中做直接宾语） （不定式在句子中表语） 从句形式。如：①When we shall leave …③? -how I
初中不定式todo的用法
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. 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。 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。
初中英语动名词的用法.doc
初中英语动名词的用法 动名词，即“动词原形 +ing ”变成名词使用，具有双 重性，既有动词的某些特征，有动词的各种变化形式；又有名 词的某些性质，在句中充当主语、宾语、表语、定语。同时也 能被副词修饰或者支配宾语。 一、动名词的名词的性质 1.作主语 动名词作为主语有以下几种表现形式： 1）直接作为主语。 例如： Taking exercise everyday is a good habit. Finding work is difficult these days. Walking is a good form of exercise for both young and old. [ 句中 Walking （散步）作为句子主语，直接出现。句意：散 步对年轻人和老年人是一项很好的运动。] 2）用 it 作形式主语，真正的主语作为后置主语。 例如： It isn ’ t easy trying to climb the mountain. [ 句中 It 作为形式主语，动名词短语trying to do sth.才是真正的主语。] 能用于上述结构的形容词有：better， wonderful ，
enjoyable，interesting ，foolish ，difficult ，useless，senseless，worthwhile 等。但是 important ， essential，necessary等形容不能用于上述构。 用it 代替名作形式主的除了上述句型外，有一种句型： It is no use/ useless/ useful/ no good/ great fun/ a waste of time/ nice/ good+ v-ing 例如： It ’ s no use trying to argue with him. 3）“ There be”的构 种句型一般是否定形式，There 是引，作形式 主，名做真正主。意思是“不可能??”。 例如： There is no joking about such matters. 4）告示或略的警告用中，名在祈使句中作主 一般是否定的、省略的形式。 例如： No climbing.（No climbing is allowed.） 5）成复合构 名有自己的主，可在其前面加上所有格， 使之成复合构，可作句中主。 例如：
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 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。