名词性从句讲解及解题技巧分析
名词性从句讲解
在复合句中起名词作用的从句叫做名词性从句。它包括主语从句、宾语从句、表语从句和同位语从句。名词性从句是中学阶段的一个重要语法项目，在历年的高考中几乎都涉及到，并且每年的命题各有变化。分析历届高考试题名词性从句考查的焦点主要有以下六个方面
1. 考查名词性从句的语序问题
2. 考查引导词that与what的区别
3. 考查it在名词性从句中作形式主语或形式宾语的用法
4. 考查whether与if的区别
5. 考查名词性从句中的疑问词+ever引导的名词性从句与no matter+疑问词引导的状语从句的区别
6. 考查名词性从句的虚拟语气问题
（一）语法要点剖析
一、名词性从句
主语从句、表语从句、宾语从句、同位语从句，在整个句子中所起的作用，相当于一个名词。因此，这四种从句通称为名词性从句。
引导名词性从句的连接词可分为三类：
连接词：that, whether, if （不充当从句的任何成分）
连接代词：what, whatever, who, whoever, whom, whose, which.
连接副词：when, where, how, why
1. 主语从句
作句子主语的从句叫主语从句。主语从句通常由从属连词that，whether，if和连接代词what，who，which，whatever，whoever以及连接副词how，when，where，why等词引导。that在句中无词义，只起连接作用；连接代词和连接副词在句中既保留自己的疑问含义、又起连接作用，在从句中充当从句的成分。例如：
What he wants to tell us is not clear. 他要跟我们说什么，还不清楚。
It is known to us how he became a writer. 我们都知道他是如何成为一名作家的。Where the English evening will be held has not yet been announced.
英语晚会将在哪里举行，还没有宣布。
有时为避免句子头重脚轻，常用形式主语it代替主语从句作形式主语放于句首，而把主语从句置于句末。主语从句后的谓语动词一般用单数形式。常用句型如下：
（1）It + be + 名词+ that从句（2）It + be + 形容词+ that从句
（3）It + be + 动词的过去分词+ that从句（4）It + 不及物动词+ that 从句另注意在主语从句中用来表示惊奇、不相信、惋惜、理应如此等语气时，谓语动词要用虚拟语气“(should) +do”，常用的句型有：
It is necessary (important, natural, strange, etc.) that …
It is a pity (a shame, no wonder, etc.) that…
It is suggested (requested, proposed, desired, etc.) that…
2. 宾语从句
名词句用作宾语的从句叫宾语从句。引导宾语从句的关联词与引导主语从句表语从句的关联词大致一样，在句中可以作谓语动词或介词及非谓语动词的宾语。
1）. 由连接词that引导的宾语从句
由连接词that引导宾语从句时，that在句中不担任任何成分，在口语或非正式的文体中常被省去，但如从句是并列句时,第二个分句前的that不可省。例如：
He has told me that he will go to Shanghai tomorrow. 他已经告诉我他明天要去上海。
We must never think (that) we are good in everything while others are good in nothing.
我们决不能认为自己什么都好，别人什么都不好。
注意：在demand、order、suggest、decide、insist, desire, demand, request, command等表示要求、命令、建议、决定等意义的动词后，宾语从句常用“（should）+ 动词原形”。例如：I insist that she (should) do her work alone. 我坚持要她自己工作。
The commander ordered that troops (should) set off at once. 司令员命令部队马上出发。2）. 用who，whom, which, whose, what, when, where, why, how, whoever, whatever, whichever等关联词引导的宾语从句相当于特殊疑问句，应注意句子语序要用陈述语序。
例如：I want to know what he has told you. 我想知道他告诉了你什么。
She always thinks of how she can work well. 她总是在想怎样能把工作做好。
She will give whoever needs help a warm support. 凡需要帮助的人，她都会给予热情的支持。3）. 用whether或if引导的宾语从句，其主语和谓语的顺序也不能颠倒，仍保持陈述句语序。此外，whether与if 在作“是否”的意思讲时在下列情况下一般只能用whether，不用if：
a. 引导主语从句并在句首时；
b. 引导表语从句时；c . 引导从句作介词宾语时；d. 从句后有“or not”时；e. 后接动词不定式时。
例如：Whether there is life on the moon is an interesting question.
月球上有没有生命是个有趣的问题。
Everything depends on whether we have enough money. 一切要看我们是否有足够的钱。4）. 注意宾语从句中的时态呼应，当主句动词是现在时，从句根据自身的句子情况，而使用
不同时态。
例如：he studies English every day. （从句用一般现在时）
he studied English last term. （从句用一般过去时）
I know (that) he will study English next year. （从句用一般将来时）
he has studied English since 1998. （从句用现在完成时）
当主句动词是过去时态（could, would除外），从句则要用相应的过去时态，如一般过去时，过去进行时，过去将来时等；当从句表示的是客观真理，科学原理，自然现象，则从句仍用现在时态。
例如：The teacher told us that Tom had left us for America．
5）. think, believe, imagine, suppose等等动词引起的否定性宾语从句中，要把上述主句中的动词变为否定式。即将从句中的否定形式移到主句中。
例如：We don’t think you are here. 我们认为你不在这。
I don’t believe he will do so. 我相信他不会这样做。
3. 表语从句
在句中作表语的从句叫表语从句。引导表语从句的关联词与引导主语从句的关联词大致一样，表语从句位于连系动词后，有时用as if引导。其基本结构为：主语+ 系动词+ that 从句。例如：
The fact is that we have lost the game. 事实是我们已经输了这场比赛。
That is why he didn’t come to the meeting. 那就是他为什么不到会的原因。
It looks as if it is going to rain. 看上去天要下雨了。
需要注意的，当主语是reason时，表语从句要用that引导而不是because。例如：
The reason why he was late was that he missed the train by one minute this morning
4. 同位语从句
同位语从句说明其前面的名词的具体内容。同位语从句通常由that引导，可用于同位语从句的名词有advice、demand、doubt、fact、hope、idea、information、message、news、order、problem、promise、question、request、suggestion、truth、wish、word等。例如：
The news that we won the game is exciting.我们赢得这场比赛的消息令人激动。
I have no idea when he will come back home. 我不知道他什么时候回来。
The thought came to him that Mary had probably fallen ill. 他想到可能玛丽生病了。
同位语从句和定语从句的区别：
that作为关系代词，可以引导定语从句，充当句子成分，在从句中作宾语时可以省略；that引导同位语从句时，起连词的作用，没有实际意义，不充当句子成分，一般不能省略。试比较下面两个例句:
I had no idea that you were here．（that引导同位语从句，不能省略）
Have you got the idea（that）this book gives you of life in ancient Greece？（that引导定语从句，作宾语，可以省略）
( 二) 名词性从句的连词
引导名词性从句的连接词；引导名词性从句的连接词可分为三类：
连接词：that, whether ,if （不充当从句的任何成分）
连接代词：what, whatever, who, whoever, whom, whose, which
连接副词：when, where, how, why
I.名词性that-从句
1）由从属连词that引导的从句叫做名词性that-从句。That只起连接主句和从句的作用，在从句中不担任任何成分，本身也没有词义。名词性that-从句在句中能充当主语、宾语、表语、同位语和形容词宾语。例如：
主语：That he is still alive is sheer luck.他还活着全靠运气。
宾语：John said that he was leaving for London on Wednesday.
约翰说他星期三要到伦敦去。
表语：The fact is that he has not been seen recently.
事实是近来谁也没有见过他。
同位语：The fact that he has not been seen recently disturbs everyone in his office.
近来谁也没有见过他，这一情况令办公室所有的人不安。
形容词宾语：I am glad that you are satisfied with your job.
你对工作满意我感到很高兴。
2）That-从句作主语通常用it作先行词，而将that-从句置于句末。例如：
It is quite clear that the whole project is doomed to failure.
很清楚，整个计划注定要失败。
It's a pity that you should have to leave.
你非走不可真是件憾事。
用it作形式主语的that-从句有以下四种不同的搭配关系：
a. It + be +形容词+ that-从句
It is necessary that…
It is important that…
It is obvious that…
b. It + be + -ed 分词+ that-从句
It is believed that…
It is known to all that…
It has been decided that…
c. It + be +名词+ that-从句
It is common knowledge that…
It is a surprise that…
It is a fact that…
d. It +不及物动词+ that-分句
It appears that…
It happens that…
It occurred to me that…
II.if, whether引导的名词从句
从属连词if, whether引导的名词从句是由一般疑问句或选择疑问转化而来的，因此也分别被称为yes-no型疑问句从句和选择型疑问从句，其功能和wh-从句的功能相同。
例如：
主语：Whether the plan is feasible remains to be proved.
这一计划是否可行还有等证实。
宾语：Let us know whether / if you can finish the article before Friday.
请让我们知道你是否能在星期五以前把文章写完。
表语：The point is whether we should lend him the money.
问题在于我们是否应该借钱给他。
同位语：They are investigating the question whether the man is trustworthy.
他们调查他是否值得信赖。
形容词宾语：She's doubtful whether we shall be able to come.
她怀疑我们是否能够前来。
介词宾语：I worry about whether he can pass through the crisis of his illness.
我担心他是否能度过疾病的危险期。
III. 名词性wh-从句
由wh-词引导的名词从句叫做名词性wh-从句。Wh-词包括what, who, whom,. whose, whoever, whatever, which, whichever等连接代词和where, when, how, why等连接副词。
1. what用法
１）what是连词，what 在从句中充当主语，如：what is needed，从句可充当：
主语What is needed is time. 需要的东西就是时间。
表语This is what is needed. 这就是需要的东西
宾语I don’t know what is needed我不知道需要什么。
２）what是连词，what 在从句中充当宾语，如：what he did，从句可充当：
主语What he did surprised all of us. 他做的事情使所有的人都惊奇。
表语This is what he did. 这就是他做的事情。
宾语I don’t know what he did.我不知道他做的事情。
３）what 是连词，what在从句中充当表语，如：what water is，从句可充当：
主语What water is is known to us all. 水是什么是大家都知道的。
表语What the little boy want to know is what water is.
小男孩想知道的是水是什么。
宾语Everybody knows what water is. 人人都知道水是什么。
2. who用法
１）who是连词，在从句中充当主语，如：who broke the window ，从句可充当：主语Who broke the window is not known yet. 谁打碎了窗户该不知道呢。
表语The problem is who broke the window. 问题是谁打碎了窗户。
宾语I don’t know who broke the window.我不知道谁打碎了窗户。
２）who是连词，在从句中充当表语，如who he is，从句可充当：
主语Who he is is being looked into. 他是谁正在被调查着。
表语The problem is who he is. 问题是他是谁。
宾语I don’t know who he is.我不知道他是谁。
３）who (whom) 是连词，在从句中充当宾语，如：who (whom) I know 从句可充当：主语Who I know has nothing to do with you. 我认识谁与你无关。
表语What she wants to know is who(m) I know. 他想知道我认识谁。
宾语She doesn’t want to know w ho(m) I know. 她不想知道我认识谁。3. whose用法whose是连词，在从句中充当定语，如whose pronunciation is the best，从句可充当：
主语Whose pronunciation is the best is a open. Secret.
谁的语音最好是个公开的秘密。
表语The problem is whose pronunciation is the best.
问题是谁的语音最好。
宾语I don’t know whose pronunciation is the best.
我不知道谁的语音最好。
4. where用法where是连词，where在从句中充当地点状语，如where he worked 从句可充当：
主语Where he worked is not far from here. 他曾经工作的地方离这儿不远。
表语This is where he worked. 这就是他曾经工作的地方。
宾语I know where he worked. 我知道他曾经在哪儿工作。5. when 用法when是连词，when在从句中充当时间状语，如when he came here 从句可充当：
主语When he came is not known to us all. 他什么时间来的我们都不知道。
表语The problem is when he came here. 问题是他什么时间来的。
宾语I know when he came here. 我知道他他什么时间来的。
名词性从句
1. It depends on ________ we have enough money.
A. if
B. whether
C. if or not
D. what
答：B。在主语从句、表语从句、同位语从句、让步状语从句、不定式前或介词后一般用whether，不用if。
2. We discussed ________we should make him monitor.
A. if
B. whether
C. that
D. what
答：B。在discuss动词后一般用whether，不用it。
3. Seeing me so pale, he asked me ________.
A. what was the matter
B. what the matter was
C. what the matter is
D. what is the matter
答：A。由asked判断从句应用过去式，whst做句中的主语，词序不变。
4. The reason ____he was late was _____ he had taken a wrong bus.
A. that, why
B. why, that
C. why, because
D. why, because of
答：B。当reason做主语时，表浯从句用that引导，不用why或because。
5. Can you tell me________ the railway station?
A. how I can get to
B. how can I get to
C. where I can get to
D. where can I get to
答：A。宾语从句应用陈述语序。根据the railway station这一信息排除C项。
6. ________ he said at the meeting astonished everybody present.
A. What
B. That
C. The face
D. The matter
答：A。what意为“所……的”。
7. Go and get your coat. It’s _____ you left it.
A. there
B. where
C. there where
D. where there
答：B。there为副词，不能做先行词，故不能看作定语从句，此题where引导的是表浯从句。
8. No one can be sure ______ in a million years.
A. what man will look like
B. what will man look like
C. man will look like what
D. what look will man like
答：A。宾语从句应用陈述语序。
9. ________ we’ll go camping tomorrow depends on the weather.
A. If
B. Whether
C. That
D. Where
答：B。引导主语从句应用whether，不能用正在下列情况下只能用whcther不能用if如：
①Whether he’ll come or not doesn’t matter much. 主语从句
②The problem is whether you have time. 表语从句
③I have no idea whether we’ll go to the Great Wall. 同位语从句
④Whether you agree or not, we’ll go there. 让步状语从句
⑤I don’t know whether to go or not. 不定式前
⑥I’m not quite sure about whether he can help us. 介词后
⑦We are now discussing whether we’ll put off the meeting, discuss之后
10. _____the boy didn’t study hard made his mother angry.
A. Which
B. What
C. That
D. It
答：C。that引导的名词性从句，that只是一个引导词，本身没有实际意义，也不充当任何句子成分，在主语从句、表语从句及同位语从句中that都不能省。但在宾语从句中that可以省略。
11. The truth is______he doesn’t work hard enough.
A. why
B. what
C. that
D. which
答：C。that引导的是表语从句，指明确具体的一件事。
12. These wild flowers are very rare. 1 will do ________ I can to save them.
A. whatever
B. that
C. which
D. whichever
答：A。whatever表示“所……的一切，凡是”。
13. I remember _______ this used to be a quiet village.
A. when
B. how
C. where
D. what
答：A。when从句在此题中为宾语从句。
14. We were all very much worried over the fact ________ you were ill.
A. that
B. what
C. which
D. about which
答：A。that引导的是同位语从句。
15. China isn’t______she used to be.
A. what
B. that
C. which
D. /
答：A。what从句在此题中为表语从句。
16. ______ there is life on the moon is impossible.
A. Whether
B. If
C. That
D. What
答：C。根据impossible这一信息词可排除A项。
17. There is no doubt_______ he’ll succeed in the future.
A. what
B. that
C. whether
D. if
答：B。一般情况下表示怀疑的、不确信的事常用whether，表示不怀疑、确信的事常用that。如：doubt
don’t know
I wonder whether ...
am not sure
question
am sure
I don’t doubt that ...
don’t question
18. It is generally considered unwise to give child________he or she wants.
A. however
B. whatever
C. whichever
D. whenever
答：B。whatever 凡是，所……的一切
19. It’s uncertain__________.
A. why did he do it
B. why does he do it
C. when did he do it
D. whether he did it or not
答：D。uncertam不确信
20. It is true________ he said surprised us all.
A. what
B. that
C. that what
D. what that
答：C。it为形式主语，真实主语为that从句，whath he said为从句中的主语。
21. _______can be done has been done.
A. Which
B. When
C. What
D. That
答：C。本句童为“能做的事都做了”。
22. I’ll do________ I can to help you.
A. what
B. that
C. which
D. all what
答：A。car后省去了do，意为〃我将傲我所能做的事去帮助你们”。what=all that
23. One of the two men held the view________ the book said was right.
A. that what
B. what that
C. that
D. whether
答：A。that为引导词，引导同位语从句，做view的同位语。
24. _____ you do should be good for the people.
A. No matter what
B. Whatever
C. No matter how
D. However
答：B。whatever在意思上相当于no matter what,但含有no matter的从句一般不做主语或宾语。
25. _____ leaves last ought to turn off the lights.
A. Who
B. Anyone
C. Whoever
D. The person
答：C。whoever=anyone who
26. It worried her a bit________ her hair was turning grey.
A. while
B. that
C. if
D. for
答：B。It为形式主语，that引导的从句为真正主语。
27. When do you think ________?
A. will he come
B. he will come
C. is he coming
D. did he come
答：B。do you think为插入语，含有插入语的特殊疑问句用陈述语序。
28. Can you make sure________ the gold ring?
A. where Alice had put
B. where had Alice put
C. where Alice has put
D. where has Alice put
答：C。宾语从句应用陈述语序，应用现在完成耐。
29. A computer can only do ________ you have instructed it to do.
A. how
B. after
C. what
D. when
答：C。本句童为“电脑只能做你要求它傲的事。”
30. —I think it’s going to be a big problem.
—________Yes, it could be.
—I wonder_______ we can do about it.
A. if
B. how
C. what
D. that
答：C。第三句童为“我不知道对此我们能做些什么。”
31. I wonder________ I can do more for our country.
A. what
B. how
C. whatever
D. however
答：B。more做do的宾语。意为“我不知道如何能为国家多做些贡献。”
32. There is a feeling in me _____ we’ll never know what a UFO is.
A. that
B. which
C. of which
D. what
答：A。that在主句中做feeling的同位语。
33. —I drove to Zhuhai for the air show last week.
—Is that ________ you had a few days off?
A. why
B. when
C. what
D. where
答：A。第二句意为“那就是你休几天假的原因吗?”why引导的是表语从句。
34. ______ you don’t like him is none of my business.
A. What
B. Who
C. That
D. Whether
答：C。that引导的从句表示明确的一件事。意为“你不喜欢他不关我的事。”
35. You can’t imagine________ when they received these nice Christmas presents.
A. how they were excited
B. how excited they were
C. how excited were they
D. they were how excited
答：B。应用陈述语序。
36. I’ll make friends with________ shares my interests.
A. whomever
B. whoever
C. whatever
D. whichever
答：B。whoever为宾语从句的主语，故应是主格形式。
37. _____ will go there has not been decided yet.
A. Who
B. That
C. What
D. Those
答：A。本句意为“谁将去那还没有决定下来。”
38. When and where we’ll hold the meeting ________.
A. has not decided yet
B. have not decided yet
C. has not been decided yet
D. have not been decided yet
答：C。指开会这一件事，谓语用单数，应用被动语态。
39. What he does and what he says ________ different.
A. is
B. are
C. be
D. to be
答：B。说和做是两回事。
40. What we need _______two English teachers.
A. is
B. are
C. be
D. to be
答：B。一般情况下从句做主语时，谓语用单数，但当what从句做主语时，谓语根据其含义而定。
名词性从句超详细讲解]
名词性从句超详细讲解] 【文字｜双语| 教程】▼引导名词性从句的连接词可分为三类：连词（5个）：that （本身无意义。引导单一的宾语从句时that常可省略，但引导主语从句、表语从句、同位语从句时that通常不被省略）whether,if （均表示“是否”表明从句内容的不确定性）as if ,as though （[1] 均表示“好像”，“似乎”）以上在从句中均不充当任何成分连接代词（10个）：what/ whatever, who/ whoever, whom/ whomever, whose/whosever, which/ whichever连接副词（7个）：when/ whenever, where/ wherever, how/ however, why不可省略的连词：1. 介词后的连词。2. 引导主语从句和同位语从句的连词不可省略。That she was chosen made us very happy.We heard the news that our team had won.3. 在从句中做成分的连词.比较whether与if 均为"是否"的意思。但在下列情况下，只可用whether：1. whether引导主语从句并在句首。 eg:Whether he can come to the party on time depends on the traffic.2. 引导表语从句。eg:The question is whether we can get in touch with her.3.whether从句作介词宾语。eg:I am thinking about whether I should quit my present job.4.if与whether都可以与or not 连用，但后面紧跟or not 时只能用whether。We didn't know whether or not she was ready.（此时只能用
名词性从句的解题技巧
名词性从句的解题技巧-标准化文件发布号：（9556-EUATWK-MWUB-WUNN-INNUL-DDQTY-KII
名词性从句解题方法 <方法>——先大类后口诀法 第一步：先分析出大的类别——定从/名从/状从 即分析所缺部分在主句中的成分从而确定从句大的类别第二步：口诀逐一解决： (I)名词性从句。——口诀——先成分后含义 (II)定语从句。——口诀——先成分后先行词 (III)状语从句。——口诀：翻译即可 例如：名词性从句的口诀执行方法是： 分析引导词在从句中的成分 A 做名词性成分——what/which/who/as(+W-ever型) B 做非名词性成分 a 不做成分：that/if/whether(whether霸王原则) b 做状语成分：when/where/why/how 一旦分出AB两类，剩余的靠含义直接翻译即可解决。
例如A computer can only do _________ you have instructed it to do. (01年31题) A. how B. after C. what D. when 解：第一步：先分析出大的类别 A computer can only do中的do是及物动词，后面缺少do的对象，所以考察名词性从句问题 第二步：口诀——先成分后含义 从句you have instructed it to do中的do是及物动词，后面缺少do的对象，所以前面的空在后面的从句内充当名词性成分，所以可以选择的引导词就可以排除AD(因为这两个引导词在从句中是充当状语的)，而选项B是名词性从句中不存在的引导词，所以B也不对，最后就剩下一个正确选项C 如此这样一步一步下来，逐一进行排除和选择，最终总是可以直接定位到正确的答案。而这个过程应该是完全被熟化在脑中的一个过程，按部就班的操作直至正确答案自然而然的浮出水面。 其他类别的题目也应该仿照此类，依次完成。 2、建立良好的做题习惯，沉稳面对每一个考验。
名词性从句讲解与辨析
英语语法：名词性从句语法讲解 时间：2016-10-08作者：来源：精品学习网 笔者在此就名词性从句中的几大易错点进行分析，希望对同学们有所帮助。 [关系代词和关系副词的误用] 例1 （2016·全国卷Ⅰ） My uncle is the owner of a restaurant close to that I live. 解析 that→where。本题考查宾语从句，引导词在从句中充当地点状语，所以将that改为where。 例2 （2015·全国卷Ⅱ） As natural architects， the Pueblo Indians figured out exactly thick the adobe walls needed to be to make the cycle work on most days. 解析 how。根据语境和空后的形容词thick可知应用how引导宾语从句，此处表示要弄清楚到底土坯房的墙需要“多”厚。故答案为how。 点拨若从句缺少主语、宾语、表语或定语，则考虑用关系代词；若从句缺少时间、地点、原因、方式等状语成分，则使用关系副词 （when/where/why/how）。 [if和whether的误用] 例3 He asked her the question if they can be friends. 解析 if→whether。question后为同位语从句，只能用whether来引导，故而将if改为whether。 例4 It doesn’t matter so much you will come or not. 解析考查主语从句。句意：你来还是不来，这不怎么重要。代词it作形式主语，真正的主语是whether引导的主语从句。 点拨在表达“是否”这一意思时，我们经常会用到whether和if，但以下几种情况只用whether不用if： 1. 在表语从句、主语从句、同位语从句中； 2. 在介词后的宾语从句中。如：It all depends on whether they will
名词性从句用法详细讲解文档
高一语法专题：名词性从句 在句子中起名词作用的从句叫名词性从句。名词性从句的功能相当于名词词组，它在 复合句中能担任主语、宾语、表语、同位语，因此根据它在句中不同的语法功能，名词性 从句又可分为主语从句、宾语从句、表语从句、同位语从句。 引导名词性从句的词叫做连接词，包括：1. 连词（在名词性从句中只起连接作用，不 作成分） 2. 连接代词（在名词性从句中作主语、宾语 或表语） 3. 连接副词（在名词性从句中作状语） I 主语从句：是在主句中作主语的从句。它由连接词引导，通常位于谓语动词之前。 连接词： 1. 连词：在从句中不充当任何成分，常见的引导主语从句的连词有that, whether。 That he got the first prize excited him much. 他获得一等奖一事使他非常兴奋。 It is doubtful whether we can get there on time. 我们能否按时到达那儿还不确定。 1）that引导的主语从句：在从句中不作任何成分，也没有实际意义。一般情况 下that不可省略。 That light travels in straight lines is known to all. 众所周知，光沿直线传播。 That you don't like him is none of my business. 你不喜欢他不关我的事。 2 Whether he can finish his task on time is of great importance. 他是否能按时完成任务非常重要。 Whether you can succeed or not depends on how hard you work at it. 你能否成功取决于你努力的程度。 2.连接代词：在从句中起名词或代词的作用，常作从句的主语、宾语、表语或定语，有具 体意义且不能省略。常见的连接代词有who, whom, whose, what, which, whoever, whomever, whatever, whichever。 What we should do with the problem is undecided. 我们如何处理这个问题还未作出决定。（what引导主语从句，不表疑问意义） Whom the letter was from is still unknown. 这封信是谁邮寄的还不清楚。 3.连接副词：在从句中起副词的作用，常作从句的状语，表示时间、地点、原因、方式等。 常见的连接副词有when, where, how, why, whenever, wherever, however等。 Why he did that wasn't quite clear.
【英语】英语名词性从句解题技巧讲解及练习题(含答案)
【英语】英语名词性从句解题技巧讲解及练习题(含答案) 一、初中英语名词性从句 1．_______ makes me feel worried is _______ singing stars are centered on by masses of teenagers today. A. What; what B. That; that C. What; that D. That; what 【答案】 C 【解析】【分析】句意：让我感到担忧的是，今天的歌星是以青少年为中心的。分析句子可知，主语从句中的谓语动词makes 缺少主语，主语从句中缺少宾语一般用what，因此选择 what 来引导主语从句；系动词 is 后面的表语从句句意完整，不缺少成分，因此选择 that 引导表语从句。分析选项可知C项符合题意，故选C。 【点评】考查名词性从句，本题涉及what引导的主语从句和that引导的表语从句的应用。 2．________ is known to us all that the old scientist, for ________ life was hard in the past, still works hard in his eighties. A. As; whose B. It; whose C. As; whom D. It; whom 【答案】 D 【解析】【分析】句意：我们都知道，那位老科学家，过去生活很艰苦，到了八十多岁还在努力工作。第一空it is known to us all that…是个固定句型，意为“众所周知…”；第二空为介词+关系代词引导的定语从句，先行词the old scientist指人，作介词for的宾语，只能用whom，故选D。 【点评】考查名词性从句和定语从句，本题涉及固定句式it is known to us all that…和whom引导的限制性定语从句。 3．Some people believe _______ has happened before or is happening now will repeat itself in the future. A. whatever B. whenever C. wherever D. no matter what 【答案】 A 【解析】【分析】句意：一些人认为之前发生的或现在正在发生的任何事情在将来都会重复发生。Whatever has happened before or is happening now是一个主语从句，whatever既引导起这个主语从句，也在句中做主语。BC项都属于副词的性质，都不能做主语，通常只能做状语；no matter what只能用来引导状语从句，故选A。 【点评】考查名词性从句，本题涉及"特殊疑问词+ever"引导的主语从句。 4． is even more important is the earth cooled down, water began to appear on its surface.
名词性从句讲解与练习答案解析版
名词性从句
在句子中起名词作用的从句叫名词性从句。名词性从句的功能相当于名词词组，它在复合句中能担任主语、宾语、表语、同位语，因此根据它在句中不同的语法功能，名词性从句又可分为主语从句、宾语从句、表语从句、同位语从句。 引导名词性从句的词叫做连接词，包括： 1. 连词（在名词性从句中只起连接作用，不作成分） 2. 连接代词（在名词性从句中作主语、宾语或表语） 3. 连接副词（在名词性从句中作状语） 所有的名词性从句的语序都是陈述句语序。 主语从句：是在主句中作主语的从句。它由连接词引导，通常位于谓语动词之前。连接词： 1. 连词：在从句中不充当任何成分，常见的引导主语从句的连词有that, whether。That he got the first prize excited him much. 他获得一等奖一事使他非常兴奋。 It is doubtful whether we can get there on time. 我们能否按时到达那儿还不确定。 1）that引导的主语从句：在从句中不作任何成分，也没有实际意义。一般情况 下that不可省略。 That light travels in straight lines is known to all. 众所周知，光沿直线传播。 That you don't like him is none of my business. 你不喜欢他不关我的事。 2）whether引导的主语从句：常置于句首，表示“是否”之意； if一般不引导主语从句。 Whether he can finish his task on time is of great importance. 他是否能按时完成任务非常重要。 Whether you can succeed or not depends on how hard you work at it. 你能否成功取决于你努力的程度。 连接代词：在从句中起名词或代词的作用，常作从句的主语、宾语、表语或定语，有具体意义且不能省略。常见的连接代词有who, whom, whose, what, which, whoever, whomever, whatever, whichever。 What we should do with the problem is undecided. 我们如何处理这个问题还未作出决定。（what引导主语从句，不表疑问意义）Whom the letter was from is still unknown. 这封信是谁邮寄的还不清楚。 连接副词：在从句中起副词的作用，常作从句的状语，表示时间、地点、原因、方式等。常见的连接副词有when, where, how, why, whenever, wherever, however等。Why he did that wasn't quite clear. 他为什么做那件事还不十分清楚。 Where we can look up his address is still a problem. 我们在哪儿可以查他的地址还是个难题。 注意：it代替主语从句作形式主语
名词性从句的解题技巧(二)
名词性从句的解题技巧（二） 安徽省蚌埠二中----朱正军 B）名词性从句缺表语： 从句缺表语比上述情况复杂一些，根据句意分析，如果需要使用连接代词的话，判断选择的 方法与上述方法相同，而表达“谁的？”这一所属关系时则用whose (如：I don’t know whose this book is.)。如： 15. I read about it in some book or other. Does it matter ____ it was? 【北京卷2006】 A. were B. what C. how D. which 16. ----Can you do me a favor? ----It depends on ____ it is. 【北京卷2006】 A. which B. whichever C. what D. whatever 17. I want to be liked and loved for _____ I am inside. 【北京卷2010】 A. who B. where C. what D. how 18. Engines are to machines ____ hearts are to animals. 【山东卷2006】 A. as B. that C. what D. which 【这是一个较为特殊的句式结构，从句是第一个are的表语。句意为“发动机对于机器而言就 如同动物的心脏。”】 答案：15. D 16. C 17. C 18. C。选择方法上文已经讲过，在此不再赘述。 如果不能使用连接代词，则根据语义选择适当的连接副词，如Please tell me who/what/where/how he is一句中的几个连接词都是正确的，具体用哪一个要看上下文。 C）名词性从句缺定语： 名词性从句缺定语如果指“谁的？”则用whose，如：I don’t know whose book this is. 如果指“什么的？”则用what或whatever，如：I don’t care what person you’d like to make friends with.或You can make friends with whatever person you like. 再如： 19. It is uncertain_____ side effect the medicine will bring about although about two thousand patients have taken it. 【浙江卷2010】 A. that B. what C. how D. whether 该题表达的是“什么样的”，所以答案为B。 如果指“哪一个？”则用which或whichever。如： 20. ____ team wins on Saturday will go through to the national championships. 【山东卷2006】 A. No matter what B. No matter which C. whatever D. whichever 【谈及星期六的比赛，当然就有了范围的限制，所以要用which或whichever，意为“哪个队”，分析一下句型结构不难看出连接词既是team的定语，whichever team又是will go through的 主语，即“一身兼两职”。同时，No matter wh+只能引导让步状语从句。】 答案：20. D。which与whichever之间语法上的区别和who与whoever whom与whomever相同，whichever可解释为any person who/any thing which。 二）如果名词性从句中不缺少上述成分，则根据句意有无疑问将连接词的选择分成两种情况：A）从句语义是确定无疑的： a) 从句表达的是“一种事实”则用that。 1. It never occurred to me ____ you could succeed in persuading him to change. 【陕西卷2010】 A. which B. what C. that D. if
高中名词性从句讲解
名词性从句 名词性从句是由if, whether, that 和各种疑问词充当连接词所引导的从句，其功同名词一样。 一．主语从句 主语从句是在复合句中充当主语的从句，通常放在主句谓语动词之前或由形式主语it代替，而本身放在句子末尾。 1. It 作形式主语和it引导强调句的比较 It 作形式主语代替主语从句，主要是为了平衡句子结构，主语从句的连接词没有变化。而it引导的强调句则是对句子某一部分进行强调，无论强调的是什么成分，都可用连词that。被强调部分指人是也可用who/whom。例如：
It is a pity that you didn't go to see the film. It doesn't interest me whether you succeed or not. It is in the morning that the murder took place. It is John that broke the window. 2. 用it 作形式主语的结构 (1) It is ＋名词＋从句 It is a fact that … 事实是… It is an honor that …非常荣幸 It is common knowledge that …是常识 (2) it is ＋形容词＋从句 It is natural that… 很自然… It is strange that… 奇怪的是… (3) it is ＋不及物动词＋从句
It seems that… 似乎… It happened that… 碰巧… (4) it ＋过去分词＋从句 It is reported that… 据报道… It has been proved that… 已证实… 3. 主语从句不可位于句首的五种情况 (1) if 引导的主语从句不可居于复合句句首。 (2) It is said , (reported) …结构中的主语从句不可提前。例如： It is said that President Jingo will visit our school next week. (right) That President Jiang will visit our school next week is said. (wrong)
英语复合句的用法及解题技巧
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名词性从句的解题技巧
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名词性从句讲解及解题技巧分析
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名词性从句详细讲解及练习题
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(英语)英语名词性从句解题技巧及练习题
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