疑问词+不定式 讲解及各题型练习
高中英语每日一题(第01周)疑问词%2b不定式试题(含解析)新人教版必修2(new)
疑问词+不定式重要程度：★★☆☆☆难易程度:★★★★☆__________________ is a question。
该怎样做是一个问题。
【参考答案】How to do it【拓展延伸】＂疑问词＋不定式＂结构的用法:1。
功能:作主语、宾语、表语2。
疑问词:who，what，when，where,how等3. 作主语时,谓语动词常用单数形式4。
该结构常用在tell,show，understand，explain,teach，learn，advise，discuss，find out 等词后作宾语1。
I could not decide which dictionary I should buy. (用＂疑问词+不定式＂改写句子)→I could not decide _____________________.2。
Jack did not know where he could find such a good teacher。
(用＂疑问词+不定式＂改写句子）→Jack did not know _____________________such a good teacher。
3. I really don’t know _____________________.我实在不知道该写些什么。
1. which dictionary to buy2。
where to find3。
what to write about你知道怎样使用“疑问词＋不定式”吗?_________________________________________________________________________________ __________________________________________________________________________________________ __________________________________________________________________________________________ __________________________________________________________________________________________ __________________________________________________________________________________________ __________________________________________________________________________________________ __________________________________________________________________________________________ __________________________________________________________________________________________ __________________________________________________________________________________________ __________________________________________________________________________________________ _________尊敬的读者：本文由我和我的同事在百忙中收集整编出来，本文档在发布之前我们对内容进行仔细校对，但是难免会有不尽如人意之处，如有疏漏之处请指正，希望本文能为您解开疑惑,引发思考。
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
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。
高考英语不定式语法复习(真题+讲解)
高考英语不定式语法复习（真题+讲解）(WORD版本试题+名师解析答案，建议下载练习)1.（真题陕西高考）After receiving the Oscar for Best Supporting Actress, Anne Benedict went on _________all the people who had helped in her career.A. to thankB. thankingC. having thankedD. to have thanked2. （真题湖南高考）Sometimes I act as listening ear for fellow students _______ what is bothering themA. to talk overB. talked overC. talk overD. having talked over3. （真题福建高考）________ more about Chinese culture, Jack has decided to take Chinese folk music as an elective course.A. LearnB. LearnedC. To learnD. To be learning4. （真题北京高考）_____the early flight，we ordered a taxi in advance and got up very early.A. CatchingB. CaughtC. To catchD. CatchA. operatingB. to be operatingC. operatedD. to operate6. Tom took a taxi to the airport, only ____ his plane high up in the sky.A. findingB. to findC. being foundD. to have found7. If he takes on this work, he will have no choice but ______ an even greater challenge.A. meetsB. meetingC. meetD. to meet8. Birds’ singing is sometimes a warning to other birds ________ away.A. to stayB. stayingC. stayedD. stay9. George returned after the war, only _______ that his wife had left him.A. to be toldB. tellingC. being toldD. told10.No matter how bright a talker you are, there are times when it's betterA. remainB. be remainingC. having remainedD. to remainA. lockingB. to lockC. having lockedD. to have locked答案与解析1. A。
(最新整理)初二英语语法不定式详解及习题
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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。
“疑问词＋不定式”的用法
“疑问词＋不定式”的用法(一)先看下面一道高考题：(NMET2002)It is said in Australia there is more land than the government knows ________.A. it what to do withB. what to do it withC. what to do with itD. to do what with it考点："疑问词＋不定式"的用法；简析：动词know 后可接"疑问词＋不定式"构成的短语作宾语，在这一结构中，疑问词要放在不定式的前面。
就本考题而言，疑问词what作不定式to do的宾语；it 作介词with 的宾语，故选 C。
疑问词后面可接带 to 的动词不定式构成特殊的不定式短语，这一结构在句中可作主语、表语、动词宾语、双重宾语、介词宾语等成分。
能够接不定式的疑问词常用的有who, which, what, when, where, how等，此外，whether 后面也可接带 to 的动词不定式。
一、"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 makefire. 他得学会收集淡水、寻找食物，生火什么的。
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。
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。
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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。