英语to do 不定式
高考英语语法：动词不定式 to do的各种时态语态用法详解
1．概述动词不定式to do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、进行式、完成式和完成进行时，主动式和被动式。
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。
2. 动词不定式的构成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 也可省略。
主动形式被动形式否定式一般式to do/ to be done/ not to do/ not to be done进行式to be doing/ not to be doing完成式to have done/ to have been done/ not to have (been) done完成进行式to have been doing/ not to have been doing2.1不定式的一般式to do/ to be donenot to do/ not to be done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几乎同时发生，或是在它之后发生。
He appears to be very happy. 他看起来好像很高兴。
（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。
（赶火车发生在到站之后）2.2不定式的进行式to be doing/ not to be doing不定式的进行式表示正在进行的或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. 我很高兴和你一起旅游。
to do的三种用法
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。
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。
to do doing done 非谓语用法
to do doing done 非谓语用法
“To do, doing, done”是英语中一种非常常见的非谓语用法，是指以“to do”、“doing”和“done”开头的动词不定式、现在分词和过去分词形式。
在句子中，这个结构通常用于表示某个特定的动作或状态，而不涉及主谓关系。
下面我们来详细了解一下这三种非谓语用法的具体用法。
一、to do
“To do”是动词不定式，它的基本结构是“to + 动词原形”。
在句子中，“to do”通常用于表示将要发生的动作或未完成的动作。
具体用法如下：
1. 表示目的：例如：
- I went to the store to buy some groceries.（我去商店买食材。
）
- She went to the library to study. （她去图书馆学习。
）
- He called me to ask for some advice.（他打电话给我问建议。
）
二、doing
综上所述，“to do, doing, done”三种非谓语用法在英语中应用广泛，能够帮助我们表达各种场景下的动作或状态。
熟练掌握这三种非谓语用法，能够让我们的语言表达更加丰富和准确。
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。
高考英语语法：动词不定式 to do的各种时态语态用法详解
1．概述动词不定式to do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、进行式、完成式和完成进行时，主动式和被动式。
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。
2. 动词不定式的构成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 也可省略。
主动形式被动形式否定式一般式to do/ to be done/ not to do/ not to be done进行式to be doing/ not to be doing完成式to have done/ to have been done/ not to have (been) done完成进行式to have been doing/ not to have been doing2.1不定式的一般式to do/ to be donenot to do/ not to be done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几乎同时发生，或是在它之后发生。
He appears to be very happy. 他看起来好像很高兴。
（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。
（赶火车发生在到站之后）2.2不定式的进行式to be doing/ not to be doing不定式的进行式表示正在进行的或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. 我很高兴和你一起旅游。
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。
to do 不定式
To do 不定式不定式由“to do＋动词原形构成”其否定形式是“not to do”。
to do定式不能单独作谓语、不随主语的人称和数的变化而变化。
它有名词、形容词和副词的功能，但还保留动词的特征。
不定式可以带宾语或状语构成不定式短语，有时态和语态的变化。
不定式可作主语、宾语、状语、表语和定语。
不定式有时态和语态变化，具体结构如下表：1．不定式的用法1）作主语不定式短语作主语时，一般表示具体的、个别的、一次性的或具有将来意义的动作,谓语动词用单数。
To master a foreign Language requires painstaking effort (辛苦的努力).To combine theory with practice is a good way of learning.It＋动词＋宾语等＋ to do sthIt makes me sick to think about it.It does you a lot of good _____ _( swim) in the rivers.②It＋be＋表语＋ to do sthIt was rich to give up smoking.It was beyond me____ __( help)him.③It＋be＋表语＋ for sb. to do sth/for sth. to be done．It is important for you to attend that meeting.It is a good idea _ ___ the books ____ __ (give) to her.④It＋be＋表语＋of＋名词/代词＋to do sthIt is kind of you to offer me this lovely holiday.It was careless_ ___ you ___ ___( leave) your book on the bus.2）作表语：①动词不定式作表语，其主语常常是wish，idea，task，purpose，duty，job等表示意向、打算、计划的词。
非谓语动词to do不定式讲解
非谓语动词to do不定式讲解
非谓语动词中的to do不定式是英语语法中的一个重要部分，它表示动作尚未发生或即将发生，具有不确定性。
以下是关于to do不定式的详细讲解：
1. 用法：to do不定式在句子中可以作主语、宾语、表语、定语、状语等成分，用于表达各种不同的意义和语气。
2. 时态：to do不定式有多种时态形式，包括一般式（to do）、进行式（to be doing）、完成式（to have done）等，根据不同的语境选择不同的时态形式。
3. 语态：to do不定式有被动语态和主动语态两种形式。
被动语态用于表示主语是动作的接受者，主动语态表示主语是动作的执行者。
4. 否定形式：to do不定式的否定形式是在前面加上“not”或者“never”，例如“to not do”或者“never to do”。
5. 独立结构：在某些情况下，to do不定式可以作为独立结构出现，例如“To err is human.（人非圣贤，孰能无过。
）”。
6. 习惯搭配：to do不定式常常与一些固定搭配一起使用，例如“want to do”（想要做）、“plan to do”（计划做）等。
总之，to do不定式是一个非常灵活的非谓语动词形式，在不同的语境中有不同的用法和意义。
通过掌握其基本用法和规则，能够更好地理解和运用这种语言现象，提高英语表达能力。
英语todo不定式知识点总结
英语to do不定式知识点总结在语法中，动词不定式是指动词的一种不带词形变化从而不指示人称、数量、时态的形式。
接下来店铺为你整理了英语to do不定式知识点总结，一起来看看吧。
英语to do不定式知识点总结一、作宾语后面能接不定式作宾语的动词有：agree，ask，choose，decide， forget， hope， learn， want， wish， would like等。
例如：We hope to get there before dark. 我们希望天黑以前到那儿。
The girl decided to do it herself. 那个姑娘决定自己做那件事。
动词不定式作宾语的注意事项：1、有些动词既可跟不定式作宾语，也可跟动名词作宾语，但含义不同：remember to do 记住要做某事remember doing 记得曾经做过某事forget to do忘记要做某事forget doing 忘记曾经做过某事stop to do 停下来去做某事stop doing 停止做某事go on to do 继续做另一件事go on doing 继续做原来在做的事例如：I remember seeing you somewhere before.我记得以前在哪儿见过你。
Please remember to turn off the light when you leave.离开时请记得关好灯。
2、不定式作宾语时，如带有宾语补足语，则要把不定式放到后面，用it作形式宾语，构成“主语+动词+it+宾补(形容词、名词)+不定式”结构。
如：He found it very difficult to get to sleep.他发现很难入睡。
英语to do不定式知识点总结二、作宾语补足语1、后面能接to不定式作宾语补足语的动词有：ask，order，teach， tell， want， wish， help等。
高考英语语法：动词不定式 to do的各种时态语态用法详解
1．概述动词不定式to do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、进行式、完成式和完成进行时，主动式和被动式。
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。
2. 动词不定式的构成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 也可省略。
主动形式被动形式否定式一般式to do/ to be done/ not to do/ not to be done进行式to be doing/ not to be doing完成式to have done/ to have been done/ not to have (been) done完成进行式to have been doing/ not to have been doing2.1不定式的一般式to do/ to be donenot to do/ not to be done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几乎同时发生，或是在它之后发生。
He appears to be very happy. 他看起来好像很高兴。
（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。
（赶火车发生在到站之后）2.2不定式的进行式to be doing/ not to be doing不定式的进行式表示正在进行的或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. 我很高兴和你一起旅游。
to-do不定式-用法+练习题
语法一：to do不定式一. to do不定式及其考点1.形式_____________________________________________________ 2.表目的和结果1.He came ______ me his new science book.A.to showB. showC. showsD. Showed2.—Our English teacher has many ways ______ her class _______ .—You’re so lucky to have such a nice teacher!A. makes, interestB. making, interestingC. to make, interestingD. makes, interested3.The d octors are busy doing what they can________ the dying man.A. savingB. saveC. to saveD. saves3.搭配A.（动词搭配）1.I’ve d ecid ed ___ it myself.A. d oB. d oingC. didD. to d o2.The children d ecid e _____ their school yard this Friday afternoon.A. cl eanB. to cl eanC. cl eaningD. cl eaned3.Remember off the lights when you l eave the room, pl ease.A. to turnB. turningC. turn4.—I did n’t hear you come in just now.—That’s good. We tried ____any noise, for you were sleeping.A. not makeB. not to makeC. to makeD. making5. The teacher asked those boys _______too much noises in class.A. d o not makeB. not makeC. not makingD. not to make6.My mother always tells me________out alone at night.A. goB. not goC. not to goD. d on't go7.Our teacher always tell us ______ more English in and out of class.A. speakB. spokenC. to speakD. speakingB.（句型固定搭配）1. _______ is easy to work out the maths problem.A. ThisB. ThatC. ItD. Its2. ___is difficult to work on the Great Wall. (2002年甘肃省) A. This B. It C. That D. Its3.It' s a good habit ____ breakfast every day.A. hadB. haveC. hasD. to have4.It’s hard for us to find a house ________ this big city.A. to live inB. to live in inC. live inD. living in5.—My baby has a heart troubl e.—Did the d octor find it difficult _____?A. in treatingB. treatingC. for treatingD. to treatIt’s most foolish _____ so.A. for you to sayB. of you to sayC. with you sayingD. in your saying6.It takes me half an hour_________ the piano every day.A. playB. playingC. to play7. The lost chil d d esired nothing but _____ home.A. goB. to goC. goingD. Went4.特殊疑问词1.With all her friends and money gone, she really didn’t know _____.A. how to d oB. what to d oC. which to d oD. when to d o2.It is Master Wu who taught us _____ the machine.A. how to d o withB. ranC. how to runD. how coul d run5.易混点辨析1.We have worked for three hours. Now let's stop ________ a rest.A. hadB. haveC. to haveD. having2.—I’m sorry I my homework at home.—That’s all right. Don’t forget it to school tomorrow morning.A、forgot , to takeB、forgot , to bringC、l eft , to bringD、l eft , bringing1. The boy is often heard _______ in the music room. He sings very well.A. practise singingB. to practise singingC. practised singing2.The girl was heard______ the piano in the next room.A. playsB. to playC. playedD. play补充考点二：let 、make、have一、单项选择。
英语重点语法解析动词不定式to do
英语重点语法解析动词不定式to do（一）动词不定式to do和动名词doing在使用时的4个重要区别（1）动名词doing所表示的含义是一般的和抽空的一般的：指不限于指句子中某人或某物所发生的行为，可能是普遍存在的。
[例句] doing vs. to do①As a rule, he prefers walking in the evening. 他通常更喜欢晚上散步。
②She prefers to go this evening. 她更喜欢今晚走。
（表示一次动作）从以上两个例子可以看出，doing 可以表示一般性动作，而to do则表示一次特定的动作。
[例句]Our teachers always pay attention to combining theory with practice. 我们老师经常注意理论结合实际。
在这个句子中的to是作介词，pay attention to是固定搭配，表示“注意、注重...”。
在这个句子中使用的是动名词combining，表示“结合”，句子中在使用doing的形式时，表面上看是老师注意理论结合实际的授课方式，潜在也说明了老师也注意学生在理论结合实际过程中的实际情况。
这就是动名词的作用，表示一般性动作和抽象性动作。
所以有时候可以变为泛指，不仅限于句子中的人或物所发出的行为。
（2）动名词doing和动词不定式to do在有些动词后，表示的含义有所变化①forget（忘记）[例句]He forgot writing the letter. 他忘记了写过那封信。
He forgot to write the letter. 他忘记了（去）写那封信。
（实际上他还没写）②remember（记得）[例句]I remember going there two years ago. 我记得两年前去那边了。
I remember to go there。
我记得去那里。
（实际上他还没去）在这两个例句中明显体现出to do动词不定式表现出将要去做某事的含义。
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。
不定式to do的句型
不定式to do的句型不定式"to do"通常用于以下几种句型中：1. 作主语：- To do exercise regularly is beneficial to our health.- To learn a foreign language requires patience and perseverance. - To travel broadens our horizons.2. 作宾语：- I like to read books before going to bed.- She wants to become a doctor when she grows up.- They decided to visit their grandparents during the summer vacation.3. 作表语：- Her dream is to study abroad.- His goal in life is to make a positive impact on society.- Their aim is to win the championship.4. 作定语：- We need a guidebook to explore this city.- He bought a new phone to replace his old one.- She is looking for a book to improve her writing skills.5. 作状语：- She studies hard to pass the exam.- He exercises daily to stay fit.- They woke up early to catch the first train.6. 作宾补：- I want to learn to play the piano.- She needs to finish her homework before going out.- They decided to try to solve the problem on their own.7. 作介词宾语：- He is interested in learning to play chess.- They are excited about going to the party.- She is worried about finding a new job.8. 带有情态动词的结构：- You should try to eat healthier.- We must remember to lock the doors before leaving.- They can't afford to buy a new car right now.9. 倒装结构中的使用：- Never was I so thrilled to receive an award.- Little did she know that the surprise party was for her.- Rarely have I seen such a beautiful sunset.10. 同位语从句：- His hope is to make a difference in the world.- Our wish is for everyone to live in peace.- The goal of education is to cultivate critical thinking skills.以上是不定式"to do"的一些常见句型，可以根据需要进行具体的语境运用，以表达不同的意思和语义。
不定式to do作主语的结构
不定式to do作主语的结构不定式（to do）作主语的结构是一种常见的语法结构，在英语中经常被使用。
不定式作主语时通常出现在句子的开头，后面跟随一个及物动词的原形。
不定式作主语的结构可以用来表示一个行为、动作、想法或目标。
以下是一些例句，说明不定式作主语的结构的用法：1. To travel the world is my dream.（环游世界是我的梦想。
）2. To learn a new language takes time and effort.（学一门新语言需要时间和努力。
）3. To read books is a great way to expand knowledge.（阅读书籍是扩展知识的好方法。
）4. To help others is a noble thing to do.（帮助他人是一件崇高的事情。
）5. To succeed in life requires hard work and determination.（在生活中取得成功需要努力和决心。
）在这些例句中，不定式（to do）作为主语，表达了一个具体的动作、想法或目标。
这种结构常用于强调特定的动作或目的，使句子更加简洁明确。
需要注意的是，在一些情况下不定式作主语时，可能会有主谓倒装的现象。
例如：1. To swim across the river did he dare.（他敢于横渡这条河。
）2. To finish the project on time can they manage.（他们能够按时完成这个项目。
）在这些情况下，不定式与谓语动词之间交换了位置，形成了主谓倒装。
这种结构常用于强调或表达特定的意义。
总结起来，不定式作主语的结构在英语中经常被使用，能够清晰明确地表达特定的动作、想法或目标。
通过使用这种结构，我们可以使句子更加简洁明了，更具表达力。
to_do不定式
to be held 2. Mr. Smith is going to attend the meeting _ _____(hold) tomorrow. to have studied 3. Robert is said_______ (study) abroad, but I didn’t know what country he studied in. to be laughed (laugh) at. 4. He didn’t like _____________ 5. He claimed _____(badly treat )in the supper market when he was doing shopping yesterday.
In order to , so as to , enough to , only to , too….to., 常充当原因、结果、目的状语等，和独立结构。 I came here to see you. He got up early to catch the train.
Note:
I hurried to the station to see Tom off, only to find he had already left. 不定式：意想不到的结果
to be repaired at once/ immediately I want this bike ___________________________.
6 玛利仿佛已经告诉这件事了。
to have been told about it Mary seemed _____________________________.
7、独立结构
To tell the truth, I am not happy at the moment. •to be frank, •to be honest, •to tell the truth
非谓语to do不定式
Finish all of the Vocabulary and Grammar exercises on the workbook.
Infinitive
不定式属于一种非谓语形式。由
“to+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。
不定式可作主语(subject)、宾语 (object) 、状语 (adverbial) 、表语 (predicative)、定语(attribute)和补语 (complement)（宾补和主补），但不 能单独作谓语。
代词是不定式动作的地点工具等，不
定式后面须有相应的介词。
e.g. 他在找一个房间住。
He is looking for a room to live in．
无什么可担心的。
There is nothing to worry about.
请给我把刀子来切东西。
Please give me a knife to cut with．
(3) 作宾语补足语 He asked me to do the work with him． 他叫我跟他一起做这个工作。 注意： 1) 在feel, hear, listen to, look at, notice, observe, see, watch, have, 1et, make等词 后的补足语中，不定式不带to。
如何解决这个问题很重要。 How to solve the problem is very important ?（主语） 我的问题是什么时候开始。 My question is wh在与why连用时,只用于why或 why not开头的简短疑问句中,后 面紧跟的动词不定式不带to。 e.g. Why not have a rest?
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定语 8. I have a busy life with no time to sit around feeling sorry
He has a comfortable house to live in. Do you have anything to say?
六、不定式结构作状语 1．表示目的，也可用so as to 和 in order to… They ran over to welcome the delegates. He bought a bicycle to go to town more quickly. To draw maps properly, you need a special pen. 2. 表示结果：so/such …as to … enough to … too … to … only to He got to the station only to be told the train had gone. I shall be only too pleased to get home. The boy is old enough to go to school. Would you be so kind as to lend me your bicycle 3. 表原因 They were surprised to be informed of the news. 4. 用于 be + 性质形容词 + to do(用主动形式表被动) Easy, hard, difficult, pleasant, comfortable, dangerous, … This machine is very easy to operate. The box is not easy to carry.
动词不定式的语态
㈡.被动式( to be done / to have been done)
当不定式逻辑上的主语是不定式所表示 的动作的承受者时.
1. He didn’t like to be laughed at. 2. He claimed ____in the supper market when he was doing shopping yesterday.（上海98）
To do
1.句法功能
2.时态、语态
1. To look after my pets properly takes a lot of time. 2. It is difficult to know what the future holds. 3. His ambition is to become an actor. 表语
四、不定式结构作宾语补足语
1. Don’t force yourself to write when you have nothing to say. 2. He begged me not to tell his father about it. 3. The dentist advised me to have the bad tooth pulled out. 注：使用不定式作宾语补足语时，在有些动词后面，不 定式符号to 应当省略。 let, make, have, see, watch, notice, look at, observe, hear, listen to He observed someone open the door. I watched them get into the car. Did you notice him leave the room?
动词不定式的时态
㈢.完成式（to have done/ to 如果谓语表示 have been done) 的动作发生在
不定式之前。
1. I am sorry to have kept you waiting so long
2. You seemed to have read the novel written by Mr. Smith. 3. 2. He claimed ____in the supper market when he was doing shopping yesterday.（上海98） being badly treated B.treating badly C. to be treated badly D. to have been badly treated.
动词不定式的时态
㈠. 一般式( to do / to be done).
不定式的一般式所 表示的动作（状态） 同时（或几乎同时） 发生，或之后发生。
1. I opened the door to enter the room.
2. Mr. Smith is going to attend the meeting to be held tomorrow.
A. being badly treated
C. to be treated badly
B.treating badly
D. to have been badly treated.
五、不定式结构作定语 1. 经常放在抽象名词后作定语： ability, attempt , chance, desire, effort, plan, determination , decision ,way… Eg: 1. Do you have the ability to solve the difficulties on your own? 2. They will make another attempt to cross the river tonight. II. 如果名词前有 the first…/ the last…/ the best…/ 等修饰时， 其后用 不定式修饰。 1. He is always the first person to come to school. 2. He is the best man to do the job. III 不定式作定语时，如果其逻辑主语是句子的主语，不定式用主 动形式： 如果这个动词是不及物动词， 其后应加一介词。
9. He used dictation to give his answers into a special 状语 machine.
三、不定式结构作动词宾语 1 ．“动词 + 带 to 的不定式结构”。 ( ask, decide, desire, expect, …) I’ve arranged to meet him at ten o’clock. I didn’t think / expect to find you here. 2．“动词 + 疑问词 + 带 to 的不定式结构”。 I don’t know what to do / where to go / who(m) to ask / when to stop / how to get there. I haven’t decided whether to sell it or not. 3.如果作宾语的不定式结构有自己的补语，则应使用先行 it，把 不定式后置，例如： I find it difficult to understand him. They found it impossible to get everything ready in time. 4.不定式结构一般不可作介词宾语, 只用在except 或 but 结构中 He seldom comes except to look at my pictures. The child did nothing except weep. She can do anything but sing.
动词不定式的时态
㈡.进行式( to be doing)
如果谓语表示的动作 （情况）发生时，不 定式所表示的动作正 在进行。
1. I am very glad to be working with you.
2. He pretended to be listening attentively.
3. We didn’t expect you to be waiting for us here.
主语
4. I started to get weaker and weaker.
宾语
5. Does this disability make it difficult for them to do some things?
6. My disability has helped me grow stronger psychologically and become more independent. 宾补