《不定式的基本概念》练习
不定式分解讲义及相关习题
不定式分解讲义及相关习题不定式作名词非谓语：三种形式1.不定式2.动名词3.分词不定式中的to与介词to区别开来，叫它小品词，它只是一个符号，没有词性，但动词不定式有时也不带to.不定式的否定式注意不定式与原形和现在式的区别（以be, have, go为例）六种用法：动词不定式是非谓语动词中使用最广泛的一种，在句子中，它除了不能作谓语外，可以担当其它任何成分：主语、宾语、表语、状语、定语和宾语补足语。
在句子中起名词、形容词和副词的作用。
不定式作主语的三种情况1.不定式作主语：To see is to believe. 百闻不如一见。
To obey the laws is important. 遵守法律是非常重要的。
To finish so much homework in a day is impossible. 在一天之内完成这么多家庭作业时不可能的。
当作主语的不定式短语（即不定式带有自己的宾语、状语或逻辑上的主语）较长时，常用it 作形式主语而将真正的主语（不定式短语）放在谓语之后，例如：To obey the laws is important.→ It is important to obey the laws.To finish so much homework in a day is impossible.→ It is impossible to finish so much homework in a day.注意：当不定式作主语的句子中又再有一个不定式作表语时，不能用It is…to…的句型。
To see is to believe. 不能改成It is to believe to see. (X)常见带形式主语it 的句型归纳：句型一：It is easy (difficult, hard, important, right, wrong, possible, impossible, necessary, unnecessary, foolish, wise, kind, cruel, nice…) to do…句型二：It is a pleasure (pity, pleasant thing, crime, an honour…) to do sth.句型三：It takes (sb.) some time to do sth. 花了某人一些时间去做某事在句型一中我们常用for sb. 或of sb. 来作不定式的逻辑上的主语。
(完整版)初二英语语法不定式详解及习题
初二英法：不定式解及一..不定式的构成： to+ 原形二不定式的特点：不定式不能够独作，没有人称和数的化，不定式具有名，形容，和副的特点，能够在句子中作主，表，。
足，定，和状。
将用法以下。
〔一〕、不定式作主不定式作主，能够直接放在前面的主地址，也能够用先行it 作形式主，而将真正的主 (不定式 )置于后边。
常的句式有：(1)It is +形容 (of sb)to do sth.(2)It is +名 (for sb)to do sth(3)It takes sb some time to do sth(4)It is +形容 (for sb)to do sth. 句式注意：当不定式作主的句子中又有一个不定式作表，不能够用It is⋯ to ⋯的句型( )To see is to believe.百不如一。
( )It is to believe to see.It's for sb. 和 It's of sb.1) for sb. 常用于表示事物的特点特点，表示客形式的形容，如impossible 等：It's very hard for him to study two languages.他来学两外是很的。
2) of sb 的句型一般用表示人物的性格，道德，表示主感情或度的形容，right 。
easy, hard, d ifficult,interesting,如 good, kind, nice, clever, foolish,It's very nice of you to help me.你来帮助我，你真是太好了。
〔二〕、不定式作1.He wants to buy some vegetables.2.Don't forget to bringyour homework with you when you come to school.3.He found it very difficult ______.常接不定式作的;want ， like， agree， hope ， wish ， learn ， begin ， start ， seem， decide ，hate， choose， forget ， remember等后边，能够接不定式作。
动词不定式习题及答案
动词不定式习题及答案动词不定式习题及答案动词不定式是英语语法中的一个重要概念。
在句子中，动词不定式通常作为动词的补语、宾语或状语。
掌握动词不定式的用法和构造对于学习英语语法和提高语言表达能力至关重要。
下面将为大家提供一些动词不定式的习题及答案，希望能够帮助大家更好地理解和运用动词不定式。
习题一：根据句子意思，填入适当的动词不定式形式。
1. I hope _______ (find) a good job after graduation.2. She decided _______ (travel) around the world next year.3. They want _______ (learn) how to play the piano.4. He needs _______ (study) harder to pass the exam.5. We plan _______ (have) a party on Saturday.答案：1. to find2. to travel3. to learn4. to study5. to have习题二：改写下列句子，使用动词不定式作为宾语。
1. I want to eat pizza for dinner.2. She likes to play basketball in her free time.3. They need to buy some groceries at the supermarket.4. He loves to watch movies on weekends.5. We enjoy swimming in the ocean during summer vacation.答案：1. I want to have pizza for dinner.2. She likes playing basketball in her free time.3. They need to go to the supermarket to buy some groceries.4. He loves watching movies on weekends.5. We enjoy swimming in the ocean during summer vacation.习题三：根据句子意思，选择适当的动词不定式形式。
初中不定式练习题
初中不定式练习题初中不定式练习题初中阶段是学生打下语言基础的重要时期，而不定式作为英语语法中的一部分，也是初中英语学习中的重点内容之一。
通过练习不定式，学生可以提高对语法的理解和运用能力，为日后的英语学习打下坚实的基础。
一、不定式的基本形式不定式是动词的一种形式，通常由“to”加上动词原形构成。
例如，“to go”、“to eat”等。
不定式在句子中可以作为主语、宾语、表语、定语等。
练习题1：将下列句子中的动词改写成不定式形式。
1. She wants to buy a new dress.2. They need to finish their homework.3. He likes to play basketball.4. I hope to see you soon.5. We plan to visit the museum tomorrow.二、不定式作主语不定式作主语时，常常用于表达一种普遍的真理、习惯或者目标。
练习题2：将下列句子中的划线部分改写成不定式作主语的形式。
1. It is important to exercise regularly.2. To learn a foreign language requires time and effort.3. To save money is a good habit.4. It is necessary to study hard for the exam.5. To be healthy is everyone's wish.三、不定式作宾语不定式作宾语时，常常用于表示意愿、打算、能力、喜好等。
练习题3：将下列句子中的划线部分改写成不定式作宾语的形式。
1. She wants to become a doctor in the future.2. They decided to go on a trip during the summer vacation.3. I can't wait to meet my friends at the party.4. He hopes to pass the driving test next month.5. We would like to visit the famous tourist attractions.四、不定式作表语不定式作表语时，常常用于表示主语的特点、能力、目标等。
动词不定式用法全解(含测试题及答案)
动词不定式用法全解英语动词的非谓语形式为三种：动词不定式、动名词和分词。
非谓语动词没有人称和数的变化。
动词不定式是一种非谓语动词形式，其结构为“to＋动词原形”，其中to不是介词，而是动词不定式的符号，称为小品词，动词不定式没有人称和数的变化。
动词不定式和其后面的名词等构成不定式短语，在句子中可以用作主语、表语、宾语、补足语、定语、状语等。
动词不定式的形式：第一部分动词不定式的时态一、动词不定式的时态：动词不定式不能在句中作谓语，尽管它本身有时态的变化，但是却不能靠自身的变化形式表示动作发生的具体时间。
动词不定式发生的时间，一般只能根据谓语动词的时间，产生相对的先后时间关系。
1．不定式的一般式，表示不定式的动作与谓语动词动作几乎同时发生，或在谓语动作之后发生，或者不强调不定式动作的时间性。
但不定式表原因时，往往先于谓语动作之前发生。
如：The news will not fail to surprise him.这个消息将不会不使他大吃一惊的。
（不定式动作在将来和谓语动作同时发生）I helped to repair the car.我帮助修理汽车。
（不定式动作在过去与谓语动作同时发生）He didn't know where to go.他不知道该去哪儿。
（不定式稍晚于谓语动作）Tell your brother not to come tomorrow.告诉你哥哥明天不要来。
（不定式晚于谓语动作）判断：He decided to sell his car.I tried to go to school in time.I hope to see you soon不定式表示谓语动作的原因时，往往发生在谓语动作之前。
如：I am very happy to see you here.She seemed surprised to meet us.（先是遇见我们，她然后很吃惊）2．不定式的完成式，通常表示动作发生在谓语动词之前。
不定式的练习题
不定式的练习题不定式是英语中的一种非谓语动词形式，由"to"加上动词原形构成。
它可以用作名词、形容词或副词，并且在句子中有着重要的语法功能。
本文将提供一些不定式的练习题，旨在帮助读者加深对不定式的理解和运用。
练习题一：选择最佳答案请选择合适的不定式填入括号中。
1. She decided ________ her job and start her own business.a) quit b) quitting c) to quit d) quits2. I enjoy ________ books in my free time.a) read b) reading c) to read d) reads3. Please remember ________ the door when you leave.a) lock b) locking c) to lock d) locks4. He promised ________ me a birthday present.a) buy b) buying c) to buy d) buys5. My brother wants ________ in a foreign country after graduation.a) work b) working c) to work d) works练习题二：根据提示完成句子根据括号内的提示，使用不定式的适当形式完成句子。
1. I have some books ________ (return) to the library tomorrow.2. The children are too young ________ (go) to school.3. It's important for us ________ (save) water in our daily lives.4. She made a plan ________ (visit) her grandparents next month.5. I can't afford ________ (buy) a new car at the moment.练习题三：改写句子根据括号内的要求，改写下列句子，每空一词。
动词不定式和动名词讲解及实战练习(含答案)
动词不定式和动名词讲解及实战练习（含答案）一、动词不定式1、动词不定式的形式动词不定式一般由“不定式符号to+动词原形”构成，有的不定式可省略to。
不定式的否定形式是“not to （do）”He asked me to play chess with him。
他让我和他一起下国际象棋。
(带1o)1 saw a boy go across the road just now。
我看见有个男孩刚才过了马路。
(不带to)The teacher told me not to be late again. 老师告诉我不要再迟到。
(否定形式动词不定式的用法2、动词不定式的用法动词不定式在句子中不能作谓语，但可以用作主语、宾语、表语，定语、状语、宾语补足语和同位语。
虽不作谓语，但它可以有自己的宾语或状语。
(1)不定式作宾语①不定式作宾语的情况比较多，经常接不定式作宾语(即动词+ to do sth。
结构)的动词有：begin(开始)，care(愿意)，ask(要求)，hope(希望)，learn(学会)，expect(期望)，want(想要)，wish(希望)，forget(忘记)，like(喜欢)，decide(决定)，try(尝试)，continue(继续)，prefer(比较喜欢)，pretend(假装)等。
如I hope to see the famous scientist。
( to see作hope的宾语)我希望看见那位著名的科学家。
②不定式作某些形容词的宾语。
例：ready(准备好)，anxious(急于)，able(能够)，sure(一定)，glad(高兴)，sorry(难过)，afraid(害怕)，pleased(高兴)，willing(愿意)等。
如I’m glad to meet you。
( to meet作glad的宾语)见到你很高兴。
③不定式和疑问词连用作宾语。
如：when to do(什么时候做)；how to do(怎样做)；what to do(做什么)；why to do(为什么做)；which to do(做哪一个)等。
动词不定式练习题
动词不定式练习题动词不定式（infinitive）是一种非谓语动词形式，由“to + 动词原形”构成。
它可以在句子中充当名词、形容词或副词，并起到一系列重要的语法作用。
为了帮助大家更好地掌握动词不定式的用法，本文将提供一些练习题，帮助读者更好地掌握动词不定式的运用。
练习一：选择正确的动词不定式形式。
1. She asked me _________ her the book.a) to give b) give c) giving d) gave2. I hope _________ to the party tonight.a) to go b) go c) going d) went3. They decided _________ their holiday in Spain.a) to spend b) spend c) spending d) spent4. He wants _________ a new car.a) to buy b) buy c) buying d) bought5. We need _________ the project by tomorrow.a) to finish b) finish c) finishing d) finished练习二：使用适当的动词不定式形式，补全下列句子。
1. He promised ___________ his best to help us.2. It's time for us ___________ action.3. She can't afford ___________ a new phone right now.4. I enjoy ___________ books in my free time.5. He told me ___________ up early the next day.练习三：根据句意，选择适当的动词不定式形式。
中考英语动词不定式及其用法讲解+练习
中考英语动词不定式及其用法讲解+练习1.动词不定式的基本概念：动词不定式的基本形式是“to+动词原形”，有时可以不带to。
动词不定式没有人称和数的变化，在句中不能做谓语，但可以有自己的宾语和状语。
动词不定式跟它的宾语和状语构成了不定式短语，例如：to read the book, to speak at the meeting等。
2.动词不定式的用法：动词不定式具有名词，形容词和副词的特性，因此可在句中作主语，表语，宾语，宾语补足语，状语和定语。
句子用法：作主语：eg:1)To take part in sports is important.2)To see is to believe.动词不定式做主语时常常由it来代替它，做形式主语，而动词不定式放在句末。
eg: It’s great to see you again.It is important to learn English well.It was rewarding to take part in this exchange programmeIt will take us a month to go on study trip to New York.It is necessary for governments to control the population growth.做表语：eg：The best way is to pratice.My dream is either to be a diplomat or to be a teacher of English .A popular use of the computer is to send a e-mail.Her wish is to become a famous star.The best way is to read the play before you see it.做宾语：eg: We are talking about how to solve the problem.I think it not difficult to keep reading English every morning.做宾补：eg: We all expect him to win the contest.Our teacher told us to listen carefully in class.注意：感官动词，或使役动词+宾语+无to的不定式Is Jack in the library ?Maybe I saw him go out with some books just now.Let those in need understand that we will go all out to help them.做定语：Liu Yang is the Chinese woman astronaut to enter the space.You are the last one to win the price.In the future , human will have less work to do.Why don’t you go out to play Rose?I’m afraid I can’t . I have a lot of homework to do.做状语：动词不定式做状语可以修饰动词，一般在句中做原因，目的和结果状语，动词不定式做状语可单独放在句首，句中或句末。
动词不定式讲义整理习题（附答案）
动词不定式一、定义：有时要省去。
动词不定式的形式是"to +动词原形",但to有时要省去。
不定式是一种非限定性动词。
不定式是一种非限定性动词。
非限定动词是指那些在句中不能单独充当谓语的动词，可分为不定式，动名词，分词。
非限定动词是指那些在句中不能单独充当谓语的动词，可分为不定式，动名词，分词。
不定式在句中不能作谓语。
它具有动词的性质，本身可以带宾语和状语。
不定式在句中不能作谓语。
它具有动词的性质，本身可以带宾语和状语。
动词不定式在句中可以作句子除谓语之外的任何句子成分。
动词不定式的被动形式除了一般形式外还有其完成式和进行式。
和进行式。
二、不定式的分类(一) 带to的不定式结构的不定式结构直接跟带to的不定式结构的动词主要有:want, ask, tell, hope, learn, try, decide, forget, remember, like ,love, stop, go, come等。
等。
动词不定式的否定形式是在不定式前直接加not,即not to do sth. (二) 不带to的不定式结构的不定式结构以下几种情况使用不带to的动词不定式: can‟‟t help but...（不1.下列词组后面的不定式不带to：would rather ...than（宁愿（宁愿……也不）, had better...（最好），can（不得不，必然），may/might as well...（不妨），let alone（更不用说）。
得不）, had rather...（宁愿），cannot but...（不得不，必然）e.g.Y ou’d better return the books to the library on time. Otherwise, you will be fined. 2.在let, make, see, feel, watch, hear等感官或使役动词后,要跟不带to的动词不定式作宾语补足语。
动词不定式的用法讲解及练习题北京四中（2）
动词不定式的⽤法讲解及练习题北京四中（2）北京四中撰稿⽼师：黄浩编审⽼师：蔡正礼责任编辑：丁华动词不定式的⽤法讲解及练习题不定式既具有动词的⼀些特征，⼜具有名词，形容词和副词的句法功能否定式：not +不定式不定式的时态⼀般说来，不定式⼀般式表⽰的动作有时与限定动词表⽰的动作同时发⽣，也有时发⽣在限定动词表⽰的动作之后。
如：Who heard him say that?He seems to know this.I hope to see you again.不定式进⾏式表⽰动作正在进⾏，通常与限定动词表⽰的动作同时发⽣，如：They are said to be building another bridge across the river.I happened to be going that way too.不定式完成式表⽰的动作发⽣在限定动词表⽰的动作之前，如：I am sorry to have given you so much trouble.I am glad to have seen your mother.不定式的句法功能：（1）作主语To talk with him is a great pleasure.不定式短语作主语时，为了保持句⼦的平衡，往往以it作形式主语，⽽把不定式短语置于谓语动词之后，如：It's nice to hear your voice.（2）作表语Her wish is to become an artist.（3）作宾语常⽤于及物动词: want , hope, wish, like, need, hate, offer, prefer, begin, start, attempt, decide, determine, expect, promise, pretend, refuse ,afford, manage, help等之后，如：You should continue to learn as long as you live.注1：如果作宾语的不定式⼜有⾃⼰的补语，则须⽤先⾏词it 作形式宾语，⽽将真正的宾语不定式后置，如：They found it impossible to get everything ready in time.注2：不定式⼀般不能作介词的宾语，只有在极少数介词如:but, except等后边才⾏。
不定式练习题
不定式练习题一、不定式基础知识不定式是英语中的一种非谓语形式，在句子中可以担任动词、形容词或名词的功能。
它的形式类似于动词原形，前面加上to，例如：to go，to play。
不定式有两种形式：带有to的一般式（to-infinitive）和不带to的不定式（bare infinitive）。
二、不定式作动词1. 主语 + 动词 + 宾语 + 不定式例：She wants to go shopping.（她想去购物。
）2. 动词 + 宾语 + 不定式例：I saw him play football yesterday.（昨天我看到他踢足球。
）3. 情态动词 + 动词 + 不定式例：He can swim.（他会游泳。
）4. 动词 + 不定式例：I hope to see you soon.（我希望很快见到你。
）5. “动词 + 不定式”还可用来表示目的、结果等。
例：I went to the supermarket to buy some groceries.（我去超市买些食品杂货。
）三、不定式作形容词1. 主语 + 系动词 + 形容词 + 不定式例：The book is easy to understand.（这本书很容易理解。
）2. 名词 + 形容词 + 不定式例：She is a difficult person to please.（她是个难以讨好的人。
）3. 不定式也可用来修饰名词。
例：I have a lot of work to do.（我有很多工作要做。
）四、不定式作名词1. 主语 + 动词 + 宾语 + 不定式例：His dream is to become a doctor.（他的梦想是成为一名医生。
）2. 动词 + 不定式例：I like to swim.（我喜欢游泳。
）3. 以wh-疑问词引导的不定式从句可以作为名词。
例：I don't know what to do.（我不知道该做什么。
高中英语语法精炼 第五章 动词不定式 试题
第五章动词不定式〔一〕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，它可以有自己的宾语和状语，从而构成动词不定式短语。
它还可以有形式的变化，即一般式、进展式、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、形容词或者副词，可以在句中担任主语、宾语、宾语补足语、表语、定语和状语。
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者几乎同时发生，或者是在它之后发生。
He appears to be very happy.他看起来好似很快乐。
〔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．不定式的进展式不定式的进展式表示正在进展的或者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.我很快乐和你一起旅游。
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适。
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。
动词不定式专项讲解及训练(有答案)
动词不定式专项训练A. to solveB. to be solveC. being solvedD. solvingA. for her to returnB. that she must returnC. her returningD. of him to returnA. costs... to getB. costs... gettingC. takes... to getD. takes... gettingA. to explainB. to have been explainedC. to be explainedD. to be explainingA. to learnB. to be learningC. to have learnedD. to have been learningKeys: 1-5 A A C C C专项练习1.The flu is believed_______ by viruses that like to reproduce in the cells inside the human nose and throat.A. causingB. being causedC. to be causedD. to have been caused2.There is a new problem involved in the popularity of private cars road conditions needA. that. .. to be improvedB. which ... to be improvedC. where. . . to be improvingD. when.. . improving3.Remember_________the magazine when you have finished reading it.A. putting backB. having put backC. to put backD. will put back4.—I'm sorry I forgot________ your dictionary.—Let's use Li Hua's.A. to takeB. takingC. to bringD. bringingA. to do whatB. what to doC. doing whatD. what doingA. writing... phoningB. to write. . . to phoneC. writing... to phoneD. to write. . . phoning7.Tom is always forgetting things he has done. Yesterday, he forgot and looked for it eve-rywhere.A. to post the letterB. to have the letter postedC. to having posted the letterD. having posted the letterA. to be notB. not to beC. not beingD. being not9.My brother regretted _______ a lecture given by Prof. Wang.A. missingB. to missC. missedD. being missing10.I regret _______ you that we are unable to offer you a job.A. informingB. having informedC. to informD. to informing11.He felt tired with typing the lecture. So he stopped_______ a short break.A. havingB. to haveC. takingD. to taking12.In order to gain a bigger share in the international market, many state-run companies arestriving their products more competitive.A. to makeB. makingC. to have madeD. having madeA. to sit... weptB. to sit. .. weepingC. sit... weptD. sat. . . weeping14.—You have come just in time tohelp us.—Fine. What needs________________________?A. I doB. doneC. to be doneD. to do15.That evening, he set about_________ t he report_______ the next morning.A. write... to hand inB. to write.. . handing inC. written... to hand inD. writing... to be handed in16.There seemed nothing ________ to do but ________ f or the doctor.A. leave... sendB. left... to sendC. left... sendD. leaving... send17.Do you think it difficult________ a dolphin ________ ?A. to train... jumpingB. training... for jumpingC. to train... jumpD. to train... to jump18.I prefer _______ rather than_______ .A. to do some reading... watching TVB. doing some reading... watching TVC. to do some reading... watch TVD. doing some reading... to watch TV19.The two boys pretended _________ v ery hard, though they did nothing.A. studyB. studyingC. to be studiedD. to be studying Keys: 1-5 CACCB6-10 CDBAC 11-15 BAB CD 16-19CDCD专项练习1.An army spokesman stressed that all the soldiers had been ordered clear warnings before firing any shots.A. to issueB. being issuedC. to have issuedD. to beissuedA. practise to singB. practise singingC. to practise to singD. to practise singing3.—What can we do to help Li Ming?A. making him to realizeB. making him realizeC. to make him realizeD. to make him to realizeA. disappearB. to disappearC. disappearingD. disappearedA. to writeB. writtenC. writeD. writingA. madeB. to makeC. makingD. to be makingA. saysB. sayingC. sayD. saidA. give upB. giving upC. to give upD. to giving upA. to commentB. commentC. to commentingD. being commentedA. reciteB. recitedC. recitingD. to reciteA. repeat the question againB. repeating the questionC. to repeating the questionD. to repeat the questionA. to be destroyedB. to have been destroyedC. to be destroyingD. to have been destroyingA. to go alongB. going alongC. went alongD. will goalongA. to get it to startB. get it startD. getting it startedC. to get it startedA. to sweepB. to be sweptC. should sweepD. being swept Keys:1-5 ADC AC6-10 CCCBA 11-15 DBACB1.—I'd like to buy a car made in Shanghai.—Okay, Sir. You have several models ________ .A. to chooseB. to be chosen fromC. to choose fromD. for choosing2.It's time________ rice.A. for transplantB. of transplantingC. to transplantD. to transplanting3.It is a very difficult problem. I need a few days_________ .A. of thinking over itB. to think it overC. of thinking it overD. to think over it4.People need homes _______ and food ________ .A. to live... to eatB. to live in... to eatC. live. . . to eatD. to live in... to eat for5.Columbus was the first _________ t he New Continent.A. to have discoveredB. to discoverC. discoveringD. having discovered Keys:1-5 CCBBB专项练习A. for the family to liveB. for the family to live inC. that the family can't live inD. that the family can't liveA. so everyone to understandB. for every one understoodC. for everyone to understandD. for understandingA. to get along withB. to get alongC. to be got along withD. to getting along withA. for us in followingB. for us to be followedC. to be followedD. for us to followA. to drink itB. to be drunkC. to drinkD. to be drinkingA. to seeB. for to seeC. for seeingD. seeing7. _______ , I don't want to argue with them about the matter.A. To tell you the truthB. Telling the truthC. Having told you the truthD. Out of the truthA. to not frightenB. so as not to frightenC. in order to not frightenD. for not frighteningA. showing me the wayB. as to show me the wayC. to show me the wayD. so you can show me the wayA. to leaveB. that he leavesC. as to leaveD. leavingKeys:1-5 BCADC6-10 AABCC专项练习vi. 不定式的时态与语态意义1. 不定式的时态意义1)一般式：不定式的动作与谓语动词的动作同时发生或是在其后发生。
不定式的练习题和不定式用法总结
不定式的练习题和不定式用法总结不定式是英语中的一种非谓语动词形式，由“to”加上动词原形构成，常用于句子中作为动词、名词、形容词或副词的补充部分。
在此篇文章中，将提供一些不定式的练习题，并对常见的不定式用法进行总结。
一、不定式作为动词的补充部分1. 完成下列句子，使用适当的不定式形式：a) She wants ________ (visit) her grandparents this weekend.b) I promise ________ (help) you with your homework.c) They decided ________ (go) on a trip to Europe next year.d) We need ________ (buy) some groceries at the supermarket.2. 用适当的不定式形式填空：a) I can't afford ________ (buy) a new car right now.b) He loves ________ (play) the guitar in his free time.c) It's important ________ (practice) your speaking skills every day.d) It's time ________ (leave) for the airport.二、不定式作为名词的补充部分1. 将下列句子中的划线部分改为合适的不定式形式：a) I have a lot of homework to do. → I have a lot of homework________.b) It's difficult to le arn a new language. → ________ ________ a new language is difficult.c) He has the ability to solve complex problems. → He has the ability ________ complex problems.d) I have a desire to travel the world. → I have a desire ________ the world.2. 利用适当的不定式填空：a) My goal is ________ (become) a doctor in the future.b) The best way ________ (learn) a new skill is to practice regularly.c) She has a dream ________ (become) a professional dancer.d) Do you have any plans ________ (decorate) your new apartment?三、不定式作为形容词的补充部分1. 完成下列句子，使用适当的不定式形式：a) That is a book ________ (read) in your free time.b) The question is easy ________ (answer).c) The concert was too loud ________ (enjoy).d) It's important to be kind ________ (others).2. 用适当的不定式形式填空：a) The cake smells delicious. It's ready ________ (eat).b) The car is too expensive. It's not affordable ________ (buy).c) The movie was boring. It's not worth ________ (watch).d) The room is messy. It needs ________ (clean).以上为不定式的一些练习题，接下来对不定式的用法进行总结。
不定式讲解及习题(1)
一、找出书本page 2含有不定式的句子。
二、基本概念不定式由“to + do (动词原形)”构成, 其否定形式是“not to do”, 不定式可以带宾语或状语构成不定式短语, 没有人称和数的变化, 但有时态和语态的变化。
三、不定式的作用1. 主语(subject)2. 表语(predicative3. 宾语(object)4. 宾补(object complement)5. 定语(attribute)6. 状语(adverbial)7. 独立结构(absolute construction)四、详细讲解1、不定式做主语To keep smiling is healthy for you.,谓语动词用单数。
It is easy to learn English., 往往用it作形式主语, 不定式后置。
区分：以下两种结构中介词的用法It is important for us to learn English.It is important of him to learn English well.2、不定式做表语My job is to protect the world. His dream is to be a doctor.be, seem, appear, get, remain等后作表语。
判断正误：Seeing is to believe.（）To see is believing.（）To see（）You are to succeed.3、不定式做宾语Lin Shuhao likes to play basketball.I find it hard for him to understand me.We think it important to keep the society steady.He offered to help me.He meant to get up early1)一些动词只能跟不定式做宾语，如句3口诀：决心学会想希望，拒绝设法愿假装，主动答应选计划，同意请求帮一帮decide /determine, learn, want, expect/hope/wish; refuse, manage,pretendoffer, promise, choose, plan; agree, ask /beg, help四个希望三答应，五个想要巧安排，设法学会做决定，企图假装要选择，提供要求莫拒绝，威胁准备不失败。
动词不定式 讲解、专项练习及答案
初中英语语法（动词不定式）1．不定式的基本形式与结构动词不定式指通常由to加上动词原形(如to write) 所构成的一种非限定性动词形式，但在有些情况下to可以省略。
动词不定式有进行体和完成体(如上to be writing，to have written)，也有被动态(如to be written)，所有的主动词，不论是及物动词还是不及物动词，也不论是动作动词还是状态动词，都有不定式形式。
助动词除be和have外，没有不定式形式。
动词不定式在语法功能上可作主语、宾语、表语、定语和状语。
2．不定式的用法1)不定式结构作主语1.Te get contact with his family in Taiwan made him extremely happy since they separated more than 40 years ago．2.To finish that task in such a short time is really a challenge．在上述情况下，如果不定式较长，显得头重脚轻，则可由代词让作形式主语(形式主语it不可由that或this等其他代词代替)，而将不定式放到后面。
如：1.It made him extremely happy to get contact with his family in Taiwan since they separated more than 40 years ago．2.John admitted that it is always difficult for him to be on time．不定式结构所表示的动作是谁做的，即不定式的逻辑主语，通常可以通过for sb. to do sth. 结构表达：1.It is quite important for us to read good books during a general review．2.It is not difficult fot those talented students to pass the exam.在某些形容词(如careless，clever，considerate，foolish，good，impolite，kind，naughty，nice，silly，stupid等)作表语时，不定式后可以加of来引导出其逻辑主语：1.It is very kind of you to tell me the truth．2.It is stupid of him to do such a silly thing．2)不定式作宾语不定式作宾语有两种：一种是及物动词后直接跟带to的不定式，另一种是“及物动词+疑问词+带to的不定式。
不定式拓展问题和练习题
建议学生建立自己的学习笔 记和错题集，及时总结和归 纳所学知识，发现自己的不
足之处并加以改进。
同时，鼓励学生积极参加各种 英语角、演讲比赛等活动，锻 炼自己的口语表达能力和语言
运用能力。
THANKS FOR WATCHING
感谢您的观看
针对这些问题，建议在今后的教学中加强对不定式的时态和语态的讲解和练习，同时结合更 多的实际例子和语境，帮助学生更好地理解和运用不定式。
此外，还可以通过增加一些互动性的教学活动，如小组讨论、角色扮演等，激发学生的学习 兴趣和积极性，提高他们的学习效果。
鼓励学生在今后学习中多加练习，巩固所学知识
鼓励学生利用课余时间多加练 习，通过大量的阅读和写作实 践，巩固和加深对不定式的理
判别式法适用于一些具有特定形式的 不定式问题，如分式型、根式型等。
03 典型案例分析
一元二次方程根的问题
01 02
判别式法
通过计算判别式$Delta = b^2 - 4ac$来判断一元二次方程的根的情况， 当$Delta > 0$时，方程有两个不相等的实根；当$Delta = 0$时，方 程有两个相等的实根；当$Delta < 0$时，方程无实根。
性质与特点
01
02
03
04
非限定性
不定式不受主语的限制，可以 表示任何人或事物的动作或状
态。
普遍性
不定式可以用于各种时态和语 态，具有普遍的适用性。
简洁性
不定式可以将复杂的从句简化 为一个简单的短语，使句子更
加简洁明了。
丰富性
不定式可以表达多种语义关系 ，如目的、结果、条件、让步 等，增加了句子的表达力。
配方法
将一元二次方程通过配方转化为完全平方的形式，从而求出方程的根。
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Module 5 Unit 1 Grammar第一讲不定式的概念与基本功能Learning goals:1. To get a general understanding of v-to do.2. To learn how to use v-to do in different situations.一、不定式的概念理解1.朗读下列句子，理解句中不定式的作用。
(1) To find a good friend is difficult.(2) I plan to play football tomorrow.(3) My teacher asks us to read English aloud every morning.(4) I have much homework to do for today, I decide not to play after class.(5) I am glad to meet you.2. 不定式是一种非谓语动词的形式；句中不能单独作谓语，但仍保留动词的特点，可以有自己的宾语和状语，不定式及其宾语或状语构成不定式短语。
二、不定式的基本功能不定式的作用相当于名词、形容词和副词。
不定式不能作谓语动词，在句中起名词、形容词和副词的作用。
可以充当主语、宾语、表语、定语、宾语补足语和状语。
(一) 在句子中充当主语．1.朗读下列句子，理解句中不定式的作用。
(1) To learn English well is important.(2) To study hard is our duty.2. 你能用另外一种形式来表达吗？3. 常见的用it作形式主语的句型你知道吗？(1) 句型1: It +be+adj.+ for sb. to doIt is important for us to learn English well.◆请模仿句型自己造句．◆通常使用表示客观情况的形容词：difficult, hard, important, (im)possible, interesting, (un) necessary, good等。
◆翻译下列句子。
①多做练习对我们很有帮助。
_____________________________________________________②完成这项任务对他来说有点难度。
___________________________________________________③参加明天的演讲对你来说非常有必要。
_______________________________________________(2) 句型2：It +be+adj.+ of sb. to do通常使用表示人的品行的形容词,如: kind, good, nice, wrong, careless ,wise(unwise), foolish, polite (impolite), clever, right, stupid, etc.请用该句型造句____________________________________________________________________ ◆翻译下列句子。
①他这样说是不礼貌的。
_____________________________________________________②你帮助我真是太好了。
_____________________________________________________(3) 句型3: It + be + n.( a pleasure, a pity, an honor…) + to do…It was a pleasure to work with you in the countryside.◆翻译下列句子。
①跟你聊天是件很快乐的事。
_____________________________________________________②能听你的课是我的荣幸。
_____________________________________________________③It is a pity to give up the competition. _____________________________________________④It is my duty to help you with your study. ___________________________________________(4) 句型4：it+ takes+ (sb.) +n.+to do①It takes me two hours to finish my homework.②It took courage to tell the truth.③It cost him 100 yuan to take the coat.（二）在句子中充当宾语．1. 用括号中动词的适当形式填空。
(1) We agreed ___________ (meet) here，but now she hasn’t come yet．(2) Nobody noticed the thief into the house because the lights happened ________(go out ).2. 翻译下列句子。
(1) 我期望明天能看到你。
_____________________________________________________(2) 她决定努力学习。
_________________________________________________________(3) 他拒绝参加这个晚会。
_____________________________________________________(4) 他假装不认识我。
_____________________________________________________◆总结常见的接不定式的动词：agree, choose, decide, fail, happen, hope, manage, offer, plan,pretend, refuse, afford, promise, expect , want, learn◆用形式宾语it 代替不定式的结构主语+v.+it+宾语补足语+to do （find, make, think believe, know, consider, regard, feel）I find it important to get along well with others.◆翻译下列句子。
(1) 我认为记住单词是很重要的。
____________________________________________________(2) 我发现在周一之前完成这项工作是不可能的。
_________________________________________________________________________________ (三) 在句子中充当作宾语补足语1．朗读下列句子，理解句中不定式的作用。
(1)The teacher advised us to learn through experiment.(2) Mr. John often encourages us to be confident.(3) He requires us to take notes in class.可接动词不定式做宾语的补足语常用动词有：advise, encourage, require, invite, expect, order, persuade, tell, want, wish, warn, force, forbid, allow, ask, get, intend, prefer, etc.2. 请你用上面的动词结构造句．(1) 他要求我们五点之前到达火车站。
_________________________________________________(2) 我希望你能帮助我学习英语。
____________________________________________________(3) 我爸爸建议我多参加体育锻炼。
___________________________________________________(4) 老师经常鼓励我们保持乐观,要看到事情好的一面。
_______________________________________________________________________________ 3. 理解不定式充当宾补的特殊结构。
(1) I saw Li Lei fall off his bike．(2) I heard her sing in the next room.(3) The boss made the workers work over ten hours a day in the past.◆常用的动词包括：feel, listen to, hear, make, let , have see, watch, look at ,observe, notice,用动词的适当形式填空(1) She is often heard _______________( sing) in the next room.(2) Li Lei was seen ________________(fall down )from his bike．(3) The workers were made _______________(work ) over ten hours a day in the past.(4) The boy was made __________________(clean ) the classroom for being late for class（四）在句子中充当作定语．1. 被修饰的名词或代词与作定语的不定式之间存在着逻辑上的主谓关系。
如：(1) He is not a man to give up before difficulties．(2) He was always the first to come and the last to leave the office.(3) She has a brother to help her.[ 即时练习] 用动词的适当形式填空．(1) The next train ________________(arrive) was from New York..(2) Do you know the teacher _______________(give) us a lecture tomorrow ?(3) Will you attend the singing competition _____________(hold) next month？(4) The meeting __________________(take place) here tomorrow is going to discuss the problem of pollution.2. 被修饰的名词或代词与作定语的不定式之间存在着逻辑上的动宾关系。