疑问词+不定式 讲解及各题型练习复习进程

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(最新版)人教版初中英语不定式用法知识点总结归纳重难点汇总复习资料大全 (2)【精品推荐】

(最新版)人教版初中英语不定式用法知识点总结归纳重难点汇总复习资料大全 (2)【精品推荐】

疑问词how的用法how的用法较活,含义丰富。

现就how在句中的用法作一小结,以便同学们在学习中能更好地理解和掌握它。

1. 表示感叹。

如:How cold it is today!今天好冷啊!How hard they are working!他们在多么辛勤地劳动啊!How fast he runs!他跑得多快啊!2. 表示问候。

如:How do you do?你好!How are you?你(身体)好吗?3. 表示某种方式、手段或方法。

如:How do you spell it?你怎样拼写它?How did he go to school yesterday?他昨天是怎样去上学的?How do you know about it?你怎么知道这件事的?4. 表示爱好、程度、看法等。

如:How do you like the music?你觉得这首乐曲如何?How is your Chinese?你的汉语如何?How do you like China?你认为中国怎么样?5. 问天气。

如:How is the weather in Beijing?北京的天气怎么样?How is the weather in winter?冬天的气候怎样?6. 问路。

如:Excuse me,how can I get to the train station?请问去火车站的路怎么走?7. 问年龄。

如:How old are you?你多大了?8. 问数量。

如:How many players are there in a team?一个队有几名队员?How much bread is there on the table?桌子上有多少面包?9. 问价钱。

如:How much is this coat?这件外套多少钱?How much are these apples?这些苹果多少钱?10. 问高度。

如:How high is the mountain?这座山有多高?How tall is the girl?这女孩儿有多高?11. 问距离。

疑问词+不定式 讲解及各题型练习

疑问词+不定式 讲解及各题型练习

英语语法------ 疑问词+不定式一、基本用法说明疑问词what, which, who, when, where, how及连接副词whether与不定式连用而形成一个短语,这个短语相当于一个名词,可在句中做句子的主语、宾语或表语等。

如:1. 作主语。

如:What to do is not decided yet. 该做什么还没有确定。

How to begin is more difficult than where to stop. 如何开始比到哪里停止还困难。

2. 作宾语。

如:Do you know when to start? 你知道什么时候开始吗?I showed her which button to press. 我告诉她应该按哪一个按钮。

有时还可用于介词后作宾语。

如:I found a book on how to avoid having a heart attack.我找到一本书谈如何避免心脏病复发。

She was worried about how to fill her leisure time.她为如何打发她的闲暇时间而发愁。

3. 作表语。

如:The question is how to carry out the plan. 问题是怎样执行这个计划。

The difficulty was how to cross the river. 困难在于如何过河。

二、“疑问词+不定式(短语)”是一个很有用的结构,它的作用相当于一个名词性从句,通常在某些动词(如tell, know, imagine, learn, decided, forget, remember, consider, understa nd等)后面做宾语,有时也用作主语、表语、同位语等。

如:He didn’t know how to answer her. 他不知道该怎样回答她。

When to start has not been decided. 何时动身尚未决定。

(完整版)初二英语语法不定式详解及习题

(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。

(2021年整理)初二英语语法不定式详解及习题

(2021年整理)初二英语语法不定式详解及习题

初二英语语法不定式详解及习题编辑整理:尊敬的读者朋友们:这里是精品文档编辑中心,本文档内容是由我和我的同事精心编辑整理后发布的,发布之前我们对文中内容进行仔细校对,但是难免会有疏漏的地方,但是任然希望(初二英语语法不定式详解及习题)的内容能够给您的工作和学习带来便利。

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初二英语语法:动词不定式详解及习题一..不定式的构成:to+ 动词原形二不定式的特征:不定式不能单独作谓语,没有人称和数的变化,动词不定式具有名词,形容词,和副词的特征,可以在句子中作主语,表语,宾语。

宾语补足语,定语,和状语.现将用法归纳如下。

(一)、动词不定式作主语动词不定式作主语时,可以直接放在谓语动词前面的主语位置,也可以用先行词it作形式主语,而将真正的主语(不定式)置于后面。

常见的句式有:(1)It is +形容词(of sb)to do sth。

(2)It is +名词(for sb)to do sth(3)It takes sb some time to do sth(4)It is +形容词(for sb)to do sth。

句式注意: 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.It’s for sb.和 It’s of sb。

1) for sb. 常用于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:It's very hard for him to study two languages。

高中英语语法讲义:动词不定式考点详析与练习

高中英语语法讲义:动词不定式考点详析与练习
高中英语语法讲义:动词不定式考点详析与练习
动词不定式由“to + 动词原形”构成,可以在句子中充当除谓语之外的任何成分。动词 不定式具有动词的性质,可以带宾语和状语,且有完成式、完成进行式、进行式、被动式 和否定形式等变化。
考点详析 一、 不定式的基本形式 由“to + 动词原形”构成;其否定形式是“not to + 动词原形”,若加强语气可用“never to + 动词原形”。 She promised never to tell a lie again. 她承诺再也不撒谎了。 二、 不定式的时态和语态 不定式一般有时态和语态的变化,通常有下表中的几种形式(下面以 do 为例): 1. 不定式的时态 (1) 不定式所表达的动作与谓语动词同时发生或在谓语动词之后發生时,不定式用 一般式。 They planned to employ some skilled workers. 他们打算雇几个有技术的工人。 (2) 不定式所表达的动作与谓语动词同时发生,并强调动作正在进行或一直在持续, 不定式用进行式。 He pretended to be reading when I came in. 当我进来的时候,他假装在看书。 (3) 不定式的动作发生在谓语动词表示的动作之前,不定式用完成式。 The disabled man is said to have translated several novels into French. 据说这个残 疾人已将几本小说翻译成法语。 (4) 如果强调不定式所表示的动作从过去某一时刻起一直持续到某一时刻,不定式 用完成进行式,此时,强调动作的持续性,不强调结果。 She seems to have been reading the novel for three hours. 好像她已经看了 3 个小时 的小说了。 2. 不定式的语态

疑问词+不定式结构用法详解

疑问词+不定式结构用法详解

疑问词+不定式结构用法详解一、“疑问词+不定式”结构中的疑问词包括who, what, which(疑问代词)和how, when, where, why(疑问副词)等。

这些疑问词和不定式一起构成了不定式短语,在句中可以作主语、宾语、表语和宾语补足语等。

如:I really don”t know what to write about. 我实在不知道该写些什么。

The problem is where to put this computer.问题是该把这台计算机放在哪儿才好。

I asked him how to learn English well.我问他如何才能学好英语。

二、“疑问词+不定式”结构相当于一个名词性从句,所以常常可以用同等成分的从句来代替。

改写时只需在疑问词之后加上恰当的主语,并将不定式短语变成适当形式的谓语。

如上述句子可以分别改写为:I really don”t know what I should write about.The problem is where we should put this computer.I asked him how I could learn English well.三、“疑问词+不定式”结构经常放在tell, show, teach, learn, know, discuss, remember, forget, find out, wonder等动词的后面作宾语。

The teacher taught the students how to do the experiment.老师教学生们如何做这个实验。

The young woman doesn”t know what to do.那位年轻女子不知道怎么办才好。

The farmers showed us how to plant trees.农民们给我们示范怎样植树。

[注意]“疑问词+不定式”结构还可以用于独立问句。

【资格考试】2019最新整理--(备考辅导)英语讲义【42】“疑问词+不定式动词”结构

【资格考试】2019最新整理--(备考辅导)英语讲义【42】“疑问词+不定式动词”结构

——教学资料参考参考范本——【资格考试】2019最新整理--(备考辅导)英语讲义【42】“疑问词+不定式动词”结构______年______月______日____________________部门英语有个很有用的结构,就是:疑问词+不定式动词(question word + to-infinitive)。

疑问词是疑问代词“who, whom, what, which, whose”和疑问副词“when, where, how, why ”。

此外,连接词“whether”也适用。

“疑问词+不定式动词”结构有何功用呢?其主要功用有下列五种:⑴当主语,如:● When to hold the meeting has not yet been decided.● Where to live is a problem.● How to cope with the rising cost of living becomes a daily discussion topic.⑵当宾语,如:● We must know what to say at a meeting.● He could not tell whom to trust.● Do you know how to play bridge?⑶当补足语,如:● The problem is where to find the financial aid.● The question is who to elect.⑷当名词同位语,如:● Tom had no idea which book to read first.● Do you have a rough impression how to do it?⑸当宾语补足语,如:● Jim is not sure whose to choose.● Mary and John are not certain whether to get marriedor not.适用于“疑问词+不定式动词”的动词包括:“know, see, decide, tell, ask, consider, discover, explain, forget, guess, hear, imagine, inquire, learn, remember, think, wonder, understand”等。

疑问词+不定式的用法 Microsoft Word 文档

疑问词+不定式的用法 Microsoft Word 文档

疑问词+不定式的用法一、“疑问词+不定式”结构中的疑问词,包括疑问代词who,whom, what,which 和疑问副词how,when,where等。

这些疑问词和不定式一起构成了不定式短语,这种结构可在句子中作主语、宾语、表语等。

例如:1.How to do it is a question.该怎样做倒是一个问题。

(作主语)2.We must first solve the problem of whom to serve.我们必须首先解决为谁服务的问题。

(作介词宾语)3.The question is where to put it.问题是该把它放在哪儿才好。

(作表语)二、“疑问词+不定式”结构相当于一个名词性从句,常常可用同等成分的从句代替。

改写时只需在疑问词后加一适当主语,并将不定式改成适当形式的谓语。

上述例句可以分别改写成:1. How we should do it is a question.2.We must first solve the problem of whom we should serve.3.The question is where we should put it.三、“疑问词+不定式”结构经常放在tell,show,teach,learn,know,wonder,discuss,remember,forget,find out等动词(词组)之后作宾语。

例如:The teacher told the students how to do the experiment.老师教学生如何做实验。

(句中told含有taught的意思)The young woman doesn't know what to do.那位年轻女子不知道怎么办。

(句中what不能改换成how)He tells me how to answer all the questions in English.他告诉我怎样用英语回答所有的问题。

人教版九年级英语下册《不定式专题复习》学习任务单(公开课导学案)及练习题(含答案)

人教版九年级英语下册《不定式专题复习》学习任务单(公开课导学案)及练习题(含答案)

人教版九年级英语下册《不定式专题复习》学习任务单及练习题【学习目标】1.复习不定式的用法。

2.在练习中正确地使用不定式。

【学习准备】准备好课本、笔和笔记本,边学习边做记录。

【学习方式和环节】听课学习,按老师指令完成相应的课上练习。

学习环节主要有:1.观察句子,找出并改正运用不当的地方,总结不定式用作句子成分的种类。

2.了解不定式用作主语的用法并练习使用。

3.了解不定式用作表语的用法并练习使用。

4.了解不定式用作宾语的用法并练习使用。

5.了解不定式用作宾语补足语的用法并练习使用。

6.了解不定式用作定语的用法并练习使用。

7.了解不定式用作状语的用法并练习使用。

8.总结并布置作业。

【课堂学案】I. Look at the following sentences. Are they correct? Underline the ones with grammatical errors and correct them.1. To see is to believe.2. Watch TV is boring.3. I am surprised watch him eat so quickly.4. Edison’s mother taught him to read and write.5. Don’t forget to wear a mask when you go out if you have caught a flu.6. What I want is learn from others.7. I want something to drink.II. Complete the following sentences and describe the pictures.______________(do yoga 瑜伽) makes you heathier._____________ (be you mother) is the best thing I’ve done.III. Complete the following sentences and describe the pictures.The mission[ 使命]of the medical teams from other provinces is __________ (help) people in Wuhan fight against COVID- 19.The most important thing for a doctor is _________ (save) lives.IV. Choose the right answer.1. --- The light in the office is still on.--- Oh, I forgot _______.A. turning it offB. turn it offC. to turn it offD. having turned it off2. On my way home, I stopped _______ some food.A. buyB. to buyC. buyingD. boughtV. Choose the right answer.1. The teacher asked us ______ so much noise.A. don’t makeB. not makeC. not makingD. not to make2. The workers want us ________ together with them.A. workB. workingC. to workD. worked3. My teacher advises_____ a lot, and she advises us ______ at least twice a week.A. reading, readingB. to read, to readC. reading, to readD. to read, readingVI. Complete the following sentences and describe the pictures.The volunteer has a lot of vegetable packages __________ (deliver 派送).The volunteer has the whole street ___________ (clean) and sterilize [消毒].VII. Choose the right answer.1. The news reporters hurried to the airport, only ______ the film stars had left.A. to tellB. to be toldC. tellingD. told2. She made a candle ______ us light.A. giveB. gaveC. to giveD. given不定式练习题I. 单项选择。

“疑问词+不定式”的用法

“疑问词+不定式”的用法

“疑问词+不定式”的⽤法1. 基本⽤法不定式有时可以与what, which, who, how, when, where等疑问词连⽤,构成不定式短语,在句中主要⽤作宾语,也可⽤作主语、表语等:I don’t know what to do. 我不知道怎么办。

Tell me when to hold the meeting. 告诉我什么时候开会。

The question is how to use the machine. 问题是如何使⽤这台机器。

Where to get so much money is a question. 到哪⾥去弄这么多钱是个问题。

【注】疑问词why 后不能接不定式:误:I don’t know why to leave.正:I don’t know why I must leave. 我不知道我为什么必须离开。

但是,why后可接不带to的不定式(即动词原形):Why go with her? 为什么要与她⼀起去?Why not tell her the truth? 为什么不告诉她实情?2. 与相应从句的转换有时“疑问词+不定式”可以转换成相应的从句:Tell me when to leave. / Tell me when we shall leave. 告诉我什么时候离开。

I don’t know how to find him. / I don’t know how I can find him. 我不知道如何找到他。

Where to get the money is just our problem. / Where we can get the money is just our problem. 到哪⾥去弄这笔钱正是我们头痛的事。

疑问词+动词不定式复习过程

疑问词+动词不定式复习过程

疑问词+动词不定式精品文档"疑问词+不定式"的用法1. 作主语作主语时,谓语动词常用单数形式。

例如:Where to go tomorrow has not been decided. 明天到什么地方去尚未决定。

How to divide labor among the workers is still a question. 这些工人之间如何分工仍是个问题。

2. 作动词宾语能够接"疑问词+不定式"作宾语的动词常用的有advise, ask, consider, decide, discuss,explain, forget, know, learn, remember, show, teach, tell, wonder等。

例如:He has to learn how to collect water, hunt for food, and make fire. 他得学会收集淡水、寻找食物,生火什么的。

You should not go rafting unless you know how to swim, and you should always wear a life jacket. 如果不会游泳,就不要去做木筏漂流。

漂流必须始终穿上救生衣。

3. 作双重宾语某些动词后面可接"sb.+疑问词+不定式"构成的双重宾语,这类动词常用的有advise, ask, show, teach, tell等。

例如:He will advise you what to do. 他会建议你们做什么。

Will you show me how to use this machine? 你能示范教我如何使用这部机器吗?4. 作介词宾语某些介词后面可接"疑问词+不定式"作宾语,这类介词常用的有 about, as, from, in, of, on, with 等。

专题02疑问词不定式作宾语和情态动词musthaveto

专题02疑问词不定式作宾语和情态动词musthaveto

专题02 疑问词+不定式作宾语和情态动词must, have to(复习八下)目录考点聚焦:核心考点+中考考点,有的放矢重点速记:知识点和关键点梳理,查漏补缺难点强化:难点内容标注与讲解,能力提升学以致用:真题感知+提升专练,全面突破核心考点聚焦1、疑问词+不定式作宾语2、情态动词must, have to用法一、疑问词+不定式作宾语宾语从句与简单句的转换:当宾语从句的主语与主句的主语相同时,从句可以简化为“疑问词+不定式” 结构。

如:I don’t know what I should do next. =I don’t know what to do next. 我不知道接下来要做什么。

注意:疑问词what, which, who, when, where, how及连接副词whether与不定式(to do)连用而形成一个短语,这个短语相当于一个名词,可在句中做句子宾语。

Do you know when to start?你知道什么时候开始吗?I showed her which button to press.我告诉她应该按哪一个按钮。

有时还可用于介词后作宾语。

I found a book on how to avoid having a heart attack.我找到一本书谈如何避免心脏病复发。

She was worried about how to fill her leisure time.她为如何打发她的闲暇时间而发愁。

二、情态动词must, have to(1)must 表示主观看法,意为“必须、一定”。

如:You must stay here until I e back.在我回来之前你必须呆在这儿。

注意区分must 和have to 的区别:1. must 侧重说话者的主观看法,认为有必要有义务去做某事。

have to侧重于客观需要,含有“不得不,被迫”之意。

如:My bike was broken yesterday, so I had to walk to school. 昨天我的自行车坏了,所以我只能走路去学校。

知识点——“疑问词+动词不定式”结构

知识点——“疑问词+动词不定式”结构

“疑问词+动词不定式”结构
【知识点解析】
4. 作介词宾语:某些介词后面可接"疑问词+不定式"作宾语, 这类介词常用的有 about, as, from, in, of, on, with等。例如: You also need to learn the basic skills of rafting, such as how to handle the raft, how to paddle and how to get in and out of the raft. 你还需要学习基本划木筏的技巧,比如驾驭木筏的方法,划桨 方法,上下木筏的方法。 He has no idea of how to answer this question. 他不知道怎样回答这个问题。 Della had only $1.87 with which to buy Jim a present. 德拉仅有$1.87为来吉姆买一件礼物。(which是关系代词) You have a number of topics from which to choose. 你有很多题目可以选择。(which是关系代词)
“疑问词+动词不定式”结构
【知识点解析】
1. 作主语:作主语时,谓语动词常用单数形式。例如: Where to go tomorrow has not been decided. 明天到什么地方去尚未决定。 How to divide labor among the workers is still a question. 这些工人之间如何分工仍是个问题。
“疑问词+动词不定式”结构
【知识点解析】
5. 作表语 Perhaps the most difficult challenge is how to survive without friends. 也许最难熬的挑战,就是生活中孤独无友。 The question is which to choose. 问题是挑选哪一个。

初中英语动词不定式用法梳理及练习题含答案

初中英语动词不定式用法梳理及练习题含答案

初中英语动词不定式用法梳理及练习题含答案初中英语动词不定式用法动词不定式是由“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.T o 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.T he best way is to join an English club.2.T he 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.2.动词decide, know, learn, show, teach, tell...,介词结构on...可用疑问词带to 的不定式短语作宾语,但why 后面的不定式不带to。

人教版初三英语期末知识点复习:疑问词+不定式动词

人教版初三英语期末知识点复习:疑问词+不定式动词

人教版初三英语期末知识点复习:疑问词+不定式动词尽快地掌握科学知识,迅速提高学习能力,由为您提供的人教版初三英语期末知识点复习:疑问词+不定式动词,希望给您带来启发! 疑问词是疑问代词“who, whom, what, which, whose”和疑问副词“when, where, how, why ”。

此外,连接词“whether”也适用。

 “疑问词+不定式动词”结构有何功用呢?其主要功用有下列五种: ⑴当主语,如: ● When to hold the meeting has not yet been decided. ● Where to live is a problem. ● How to cope with the rising cost of living becomes a daily discussion topic. ⑵当宾语,如: ● We must know what to say at a meeting. ● He could not tell whom to trust. ● Do you know how to play bridge? ⑶当补足语,如: ● The problem is where to find the financial aid. ● The question is who to elect. ⑷当名词同位语,如: ● Tom had no idea which book to read first. ● Do you have a rough impression how to do it? ⑸当宾语补足语,如: ● Jim is not sure whose to choose.。

【推荐下载】中考英语语法:“疑问词+不定式”的结构

【推荐下载】中考英语语法:“疑问词+不定式”的结构
Whyarguewithher?为什么要跟她争论呢?
【注】这类结构通常只用于谈论现在和将来,不用于谈论过去:
误:Whynotcleantheroomyesterday?
正:Whydidntyoucleantheroomyesterday?你昨天为什么不打扫房间?
三、how用于该结构的注意点
2
[键入文字]
除用作宾语外,还可用作主语、表语等:
Whentoleavehasnotbeendecided.何时离开还没有决定。
1
[键入文字]
Thequestionishowtofindhim.问题是如何找到他。
二、why用于该结构的注意点
原则上说,why后不接不定式,不过若不定式不带to,则可用why:
Whynotgothereatonce?为什么不马上去那儿呢?
4
[键入文字]Leabharlann 中考英语语法:“疑问词+不定式”的结构
疑问词+不定式结构一、该结构的句法功能
wh-词+不定式主要用作宾语:
Wemustthinkwhattodo.我们必须考虑怎么办。
Icantdecidewhomtoinvite.我不能决定该邀请谁。
Hehadnoideaofhowtodoit.他不知道如何做此事。

中考英语 知识点精讲一 9“疑问词+不定式”结构课件

中考英语 知识点精讲一 9“疑问词+不定式”结构课件
Where to go tomorrow has not been decided. (主语) I don’t know how to increase my reading speed.(宾语) The question is which to choose.
(表语)
“疑问词+不定式”结构,构成不定式短语,在句 中可作主语、宾语、表语等等。
*注意:Why不用于此结构
知识讲解
“疑问词+不定式”后面是否接宾语?
1. I don’t know where to go. go (vi.不及物)
2. I know how to use the machine. use (vt.及物)
一般情况下,及物动词+宾语。
知识讲解
3. I don’t know what to do.
what为疑问代词,可作(vt.) do 的宾语
4. I know how to do it.
how为疑问副词,不可作宾 语, do后接宾语it。
典例精析
1. (福州中考)—So beautiful flowers! I can’t decide _____ for my mom.
—For Mother’s Day, it can’t be better to take some carnations(康乃馨).
知识讲解
疑问代词:who what which 疑问词 疑问副词: when how where
1. When to build the bridge is not decided. 2. I’m thinking about what to do next. 3. The question is where to go.

2022年特殊疑问词动词不定式的用法归纳

2022年特殊疑问词动词不定式的用法归纳

“特殊疑问词+动词不定式”旳用法归纳一.由两部分构成:疑问词和动词不定式(wh-+to do)。

疑问词部分涉及疑问代词who, whom, what, which和whose以及疑问副词when, where和how。

此外,连接词“whether”也合用.它重要具有如下几种功能:⑴当主语,如:● When to hold the meeting has not yet been decided.● Where to live is a problem.⑵当宾语,常接在forget, find out, discuss, decide, tell, teach, know, learn, wonder, remember等动词之后作宾语如:● We must know what to say at a meeting.● He could not tell whom to trust.● Do you know how to play bridge?⑶当表语,如:● The problem is where to find the financial aid.● The question is who to elect.⑷当名词同位语,如:● Tom had no idea which book to read first.● The question whether to confess troubled the girl.⑸用于宾语补足语,双重宾语。

某些动词后可接“sb.+ 疑问词+ 不定式”构成旳双重宾语,此类动词常用旳有advise, ask, show, teach, tell等如:● I can tell you where to get this book.● I ask her how to learn English.● He will advise you what to do.● Will you show me how to use the machine?(6) 作介词宾语:某些介词背面可接"疑问词+不定式"作宾语,此类介词常用旳有about, as, from, in, of, on, with等。

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英语语法------ 疑问词+不定式一、基本用法说明疑问词what, which, who, when, where, how及连接副词whether与不定式连用而形成一个短语,这个短语相当于一个名词,可在句中做句子的主语、宾语或表语等。

如:1. 作主语。

如:What to do is not decided yet. 该做什么还没有确定。

How to begin is more difficult than where to stop. 如何开始比到哪里停止还困难。

2. 作宾语。

如:Do you know when to start? 你知道什么时候开始吗?I showed her which button to press. 我告诉她应该按哪一个按钮。

有时还可用于介词后作宾语。

如:I found a book on how to avoid having a heart attack.我找到一本书谈如何避免心脏病复发。

She was worried about how to fill her leisure time.她为如何打发她的闲暇时间而发愁。

3. 作表语。

如:The question is how to carry out the plan. 问题是怎样执行这个计划。

The difficulty was how to cross the river. 困难在于如何过河。

二、“疑问词+不定式(短语)”是一个很有用的结构,它的作用相当于一个名词性从句,通常在某些动词(如tell, know, imagine, learn, decided, forget, remember, consider, understand等)后面做宾语,有时也用作主语、表语、同位语等。

如:He didn’t know how to answer her. 他不知道该怎样回答她。

When to start has not been decided. 何时动身尚未决定。

I don’t know who to ask advice from. 我不知道应向谁征求意见。

Would you please advise me which to buy? 你能否告诉我该买哪一个才好?Please explain (to me) where to begin and how to do it. 请(给我)解释该从哪里开始及该怎么做。

They exchanged views on the question of whom to elect. 他们就该选谁的问题交换了意见。

注意:按英语习惯,疑问词why后面通常不接不定式。

但在以why或why not 开头的省略型疑问句中,其后可跟不带to 的不定式。

如:Why get upset just because you got a bad mark? 何必因为没有考好就想不开呢?You’re looking tired. Why not take a holiday? 你一脸倦容,怎么不休假呢?三、五个易错点易错一:是否用于疑问词why之后按英语习惯,有一个疑问词不能用于“疑问词+不定式”结构,就是why。

如:我不明白为什么马上就走。

误:I don’t know why to leave at once.正:I don’t know why we must leave at once.why后面可以跟不带to的动词不定式(即动词原形),用以表示某动作是不必要的或无意义的。

如:Why pay more at other shops? We have the best value. 为什么花更多的钱到其他商店去买呢? 我们这里最物美价廉。

另,why后面不带to的动词不定式有时也可能是否定的,该结构主要用来提出建议。

如:You’re looking tired. Why not take a holiday? 你一脸倦容,怎么不休假呢?易错二:与动词think连用有何特别之处“疑问词+不定式”结构,通常不用于动词think的现在式和过去式之后,但可以用于think的其他形式之后(如进行式)。

如:I’m thinking what to do next. 我在想接下来要做什么。

另外,“疑问词+不定式”结构也通常用于还有助动词的think之后。

如:She couldn’t think what to say. 她想不出该说什么。

She couldn’t think what to give the c hildren for Christmas. 她想不出圣诞节该送孩子们什么礼物。

易错三:与动词know连用要注意什么当要表示知道如何做某事,know之后不能直接跟动词不定式作宾语,此时可改用know how to结构。

如:我会做西班牙式的摊鸡蛋。

误:I know to make Spanish omelettes.正:I know how to make Spanish omelettes.易错四:与某些只接动名词作宾语的动词连用有些动词可以接“疑问词+不定式”作宾语,但通常不直接跟不定式作宾语。

这类动词主要有consider (考虑), discover (发现), discuss (讨论), explain (说明), find (out) (查到),know (知道), observe (观察), suggest (提议), wonder (怀疑), understand (了解)等。

如:Have you considered how to get there? 你是否考虑过如何到那儿去?Our teacher explained how to use the machine. 老师向我们说明如何使用这台机器。

We discussed what to do and where we should go. 我们讨论了该怎么办及到哪里去。

你能说明一下蛋糕的做法吗?误:Can you explain to make a cake?正:Can you explain how to make a cake易错五:which to do 的两种用法要注意“which+不定式”结构,其中的which有时是疑问词。

如:I can’t decide which to choose. 我不能决定选哪个好。

Did you ask her which to buy? 你问没问她该买哪一个?有时可能是关系代词,相当于一个省略的定语从句,此时主要用于介词后作宾语。

如:She must have time in which to grow calm. 她必须有冷静下来的时间。

Allow me one minute in which to change my costumes. 给我一点时间来卸装。

这两句中的which to…也可改为定语从句:She must have time in which she can grow calm.Allow me one minute in which I can change my costumes.巩固练习一.选择1. Mr. Wu advised us _____to choose in this shop.A. whichB. from whichC. whatD. how2. The students do not know _______this math problem.A. how to deal withB. what to doC. how to do withD. what to deal with3. Xiao Ming has explained ____ late for class to his teacher.A. why to beB. why he wasC. that he wasD. why be4. Are you sure___?A. how to work it outB. how to work out itC. what to work out itD. what to work it out5. He didn’t think ____ was easy.A. who to chooseB. choosing a personC. chose a person6. He did not say ___ for help.A. whose to askB. whom to askC. which to askD. what to ask二、填空1. ___________ is a question.该怎样做倒是一个问题。

(作主语)2. I really don't know ____________________.我实在不知道该写些什么.(作动词宾语)3. We must first solve the problem of____________________.我们必须首先解决为谁服务的问题.(作介词宾语)4. The question is ____________________.问题是该把它放在哪儿才好.(作表语)5. I asked him________________________.我问他如何学习英语.(作宾语补足语)6. The teacher told the students _______________ the experiment.老师教学生如何做实验。

7. The young woman doesn't know____________________ .那位年轻女子不知道怎么办.8. He tells me______________________ all the questions in English.他告诉我怎样用英语回答所有的问题.9. ______________ is unknown.何时动身还不知道.10. I forgot ___________ .我忘了该怎么办.11. I can tell you __________________ .我可以告诉你哪里可以买到此书.Key:1. How to do it2. what to write about3. whom to serve4. where to put it5. how to learn English6. how to do7. what to do 8. how to answer 9. when to start10. what to do 11. Where to buy(get)this book三、句子改写,改成“疑问词+不定式”结构1. How we should do it is a question.2. I really don't know what I should write about.3. We must first solve the problem of whom we should serve.4. The question is where we should put it.5. I asked him how we should learn English.四、用“疑问词+不定式”完成下列句子.1. How we should do it was discussed last night.___________________ was discussed last night.2. I didn't know where I should go.I didn't know ____________________ .3. The difficulty was how we should cross the river.The difficulty was _____________________________ .Keys:1. How to do it 2. where to go 3. how to cross the river。

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