专题八 名词性从句
名词性从句讲解(最全版)
名词性从句讲解(最全版)名词性从句是一个从句，它在句子中充当名词的角色。
它可以作为主语、宾语、表语、同位语或介词宾语。
名词性从句通常由连接词引导，如that、whether、if、who、whom、whose、which、what等。
1. 作为主语：名词性从句可以作为主语，取代一个名词或名词短语，引导词通常为that或whether。
例如：- What you said is true.（你说的是真的。
）- Whether he will come is still uncertain.（他是否会来还不确定。
）2. 作为宾语：名词性从句可以作为及物动词或介词的宾语，引导词通常为that、whether、if、who、whom、whose、which、what等。
例如：- She asked me what I wanted.（她问我想要什么。
）- I don't know if/whether he will come.（我不知道他是否会来。
）3. 作为表语：名词性从句可以作为系动词的表语，引导词通常为that、whether、who、whom、whose、which、what等。
例如：- The problem is that she doesn't understand.（问题在于她不理解。
）- The question is who will take care of them.（问题是谁会照顾他们。
）4. 作为同位语：名词性从句可以作为同位语，解释或说明前面的名词或代词，引导词通常为that、whether、who、whom、whose、which、what等。
例如：- The fact that he lied surprised me.（他撒谎的事实让我感到惊讶。
）- His belief that she will succeed is unwavering.（他坚信她会成功。
高中英语名词性从句知识讲解以及练习题 附答案
高中英语名词性从句知识讲解以及练习题附答案一、名词性从句概述名词性从句是一种充当名词作用的从句，通常在主句中作主语、宾语、表语或同位语。
它通常由引导词（如that, whether, if, who, whom, whose, which, what等）引导，并且从句中含有一个主语和谓语。
名词性从句的种类有很多，包括主语从句、宾语从句、表语从句和同位语从句等。
下面我们将逐一介绍这些从句。
二、主语从句主语从句作为一个名词，通常位于句首，是一个句子，主要作用是作为主句的主语。
引导主语从句的词：What (什么)；Whether (是否)；If (是否)；That (那个)。
例句：What he said is true. (他说的是真的。
)Whether it will rain tomorrow is uncertain. (明天是否会下雨还不确定。
)If you go, I will go too. (如果你走，我也跟着走。
)That he is coming is good news. (他来的消息是好消息。
)注意：主语从句的谓语动词通常要用单数形式。
What引导的主语从句通常用来表示“事物”的概念。
三、宾语从句宾语从句是一个名词，通常位于主句的动词后面，作为主句的宾语。
它可以由常见的宾语从句引导词引导，例如whether, if, that, who, whom, whose, what, when, where, how等。
引导宾语从句的词：Whether (是否)；If (是否)；That (那个)；Who (谁)；Whom (谁)；Whose (谁的)；What (什么)；When (何时)；Where (何处)；How (如何)。
例句：I know that he is coming. (我知道他要来。
)I wonder if he is telling the truth. (我想知道他是否说了真话。
高考英语语法名词性从句讲解及练习
语法复习之名词性从句名词性从句相当于名词，可分别作主句的主语、表语、宾语和同位语。
因此，名词性从句厅分为主语从句、表语从句、宾语从句和同位从句。
（一）引导名词性从句的连接词1、连接代词：who, whose, whom, what, which。
有词义，在从句中担任成分，如主语、表语、宾语、或定语等。
2、连接副词：when, where, why, how。
有词义，在从句中担任成分，作状语。
3、连接词：that, whether, if, as if。
that 无词义，在从句中不担任成分，有时可省略；if (whether), as if虽有词义，但在从句中不担任成分。
注意：连接代词与连接副词在句中不再是疑问句，因而从句中谓语不用疑问式。
连接代词与连接副词在从句充当句子成分，连接词whether 和if（是否），as if（好象）在从句中不充当句子成分，只起连接作用。
根据句义，如果连接代词与连接副词，whether、if 和as if都用不上时，才用that作连接词（that本身无任何含义）。
（二）主语从句1、主语从句在复合句作主语。
e.g. Who will go is not important.2、用it作形式主语，主语从句放在句末。
e.g. It doesn’t matter so much whether you will come or not.3、that引导主语从句时，不能省略。
e.g. That he suddenly fell ill last week made us surprised.（三）表语从句1、表语从句在复合句中作表语，位于系动词之后。
e.g. The question was who could go there.2、引导表语从句的连接词that有时可省去。
e.g. My idea is (that) we can get more comrades to help in the work.（四）宾语从句1、宾语从句在复合句中作宾语。
名词性从句解析
名词性从句解析名词性从句是英语中一种重要的从句结构，它在句子中充当名词的成分。
名词性从句可以作为主语、宾语、表语和同位语，它的引导词包括连接代词和连接副词。
名词性从句可以帮助我们丰富句子结构，增强表达的准确性和多样性。
接下来，本文将对名词性从句进行详细解析，并给出一些例子来说明其用法。
一、名词性从句作主语名词性从句作主语时，常用的引导词有：that、whether、if、what、who、which等。
以下是几个例子：1. That he is innocent is beyond doubt.（他无辜是毫无疑问的。
）2. Whether he will come to the party is still uncertain.（他是否会来参加派对还不确定。
）3. If she can finish the work on time remains to be seen.（她能否按时完成工作还有待观察。
）4. What you said doesn't make any sense.（你说的话没有任何意义。
）5. Who will be the next president is under discussion.（谁将成为下一任总统正在讨论中。
）二、名词性从句作宾语名词性从句作宾语时，常用的引导词有：that、whether、if、what、who、which等。
以下是几个例子：1. He knows that I am telling the truth.（他知道我说的是真话。
）2. I'm not sure whether it will rain tomorrow.（我不确定明天是否会下雨。
）3. I wonder if he has received my email.（我想知道他是否收到了我的电子邮件。
）4. Please tell me what you want for dinner.（请告诉我你想要吃什么晚餐。
考点08 名词性从句(核心考点精讲精练)(解析版)
考点08名词性从句（核心考点精讲精练）【近年真题考点分布】【思维导图】【知识梳理】➢考点一：宾语从句1．宾语从句的引导词She asked me whether I had returned the books to the library，and I admitted that I hadn't.她问我是否把书还给图书馆了，我承认我还没有还。
Our teacher always tell us to believe in what we do and who we are if we want to succeed.我们的老师总是告诉我们，如果我们想成功的话，就要相信我们所做的事情以及我们自己。
宾语一般放在及物动词或介词之后，但是，在下列情况下，须用it作形式宾语，而将真正的宾语(常为不定式/从句)后置。
(1)动词find/feel/think/consider/make＋it＋宾补(形容词或名词)＋不定式/从句(2)动词hate/ like/ dislike/ appreciate/enjoy＋it＋从句(3)短语动词see to/ depend on/rely on＋it＋从句(4)固定搭配take it for granted that/owe it to sb.that＋从句No matter where he is，he makes it a rule to go for a walk before breakfast.无论他在哪里，他都定了一个规矩——早餐前散步。
I shall see to it that he is taken good care of when you are absent.你不在的时候，我负责把他照顾好。
I think it necessary that we take plenty of boiled water every day.我认为我们每天多喝白开水是有必要的。
专题八+定语从句和名词性从句
专题八定语从句和名词性从句定语从句A组2010年全国高考题组1. Children who are not active or ______ diet is high in fat will gain weight quickly.A. whatB. whoseC. whichD. that2. As a child, Jack studied in a village school, ______ is named after his grandfather.A. whichB. whereC. whatD. that3. I refuse to accept the blame for something ______ was someone else’s fault.A. whoB. thatC. asD. what4. That’s the new machine ______ parts are too small to be seen.A. thatB. whichC. whoseD. what5. Wind power is an ancient source of energy ______ we may return in the near future.A. on whichB. by whichC. to whichD. from which6. The old temple ______ roof was damaged in a storm is now under repair.A. whereB. whichC. itsD. whose7. Stephen Hawking believes that the earth is unlikely to be the only planet ______ life has developed gradually.A. thatB. whereC. whichD. whose8. The settlement is home to nearly 1,000 people, many of ______ left their village for a better life in the city.A. whomB. whichC. themD. those9. I’ve become good friends with several of the students in my school ______ I met in the English contest last year.A. whoB. whereC. whenD. which10. After graduating from college, I took some time off to go travelling, ______ turned out to be a wise decision.A. thatB. whichC. whenD. where11. In China, the number of cities is increasing ______ development is recognized across the world.A. whereB. whichC. whoseD. that12. –Can you believe I had to pay 30 dollars for a haircut?–You should try the barber’s ______ I go. It’s only 15.A. asB. whichC. whereD. that。
名词性从句详解及练习
各类从句详解英语从句可以分为名词性从句、定语从句和状语从句三大类：下面我们逐一进行说明：一、名词性从句（主语从句、表语从句、宾语从句、同位语从句）主语从句、表语从句、宾语从句和同位语从句在复合句中的充当的成分和其名称相同，分别作主句的主语、表语、宾语和同位语。
上述这四种从句均被称为名词性从句。
所有的名词性从句均不能用逗号分开，并且它们都用相同的关联词，关联词如下：①主从连词：that (无意义), whether (是否), if (是否)（在句子中不充当任何成分）②连接代词：who (谁), whom (谁), whose (谁的), what (什么), which (哪一个)③连接副词：when (什么时候), where (什么地方), how (怎样), why (为什么)主从连词只起连接作用，连接代词和连接副词除了起连接作用外，还充当从句某一个成分。
另外，可以用whatever, whichever, whoever, who(m)ever等连接代词引导名词性从句，来加强语气。
下面分别对各种名词性从句进行介绍（一）主语从句（subject clause）在主句中用作主语的主谓结构称之为主语从句。
例如：That he will come to the discussion is certain.他来参加讨论是确定的。
That the moon moves round the earth is well known to all of us.月球绕地球转动，这是我们大家都熟知的。
When the meeting is to be held has not yet been decide.会议什么时候召开还没有决定。
主语从句放在句首，句子常常显得比较笨重，因此通常可以把it放在句首，作形式主语，而将主语从句放在后面。
例如上面的句子可以分别改写为：It is certain that he will come to the discussion.It is well known to all of us that the moon moves round the earth.It has not yet been decide when the meeting is to be held.下面再举一些例句：What they are after is profit.他们追求的是利润。
初中英语语法专题—名词性从句讲解
初中英语语法专题—名词性从句讲解名词性从句是由连接词引导的从句，用作名词的成分，常常在句子中充当主语、宾语、表语、同位语等，起到连接主句与从句的作用。
下面就是名词性从句的不同类型及其用法：主语从句主语从句作为句子的主语部分，通常由连接词 "that" 或"whether" 引导。
例如：- That he is late is not surprising.（他迟到了并不令人惊讶。
）That he is late is not surprising.（他迟到了并不令人惊讶。
）- Whether we can win the game is uncertain.（我们是否能赢得比赛还不确定。
）Whether we can win the game is uncertain.（我们是否能赢得比赛还不确定。
）宾语从句宾语从句作为句子的宾语，通常由连接词 "that" 或 "whether"引导。
例如：- I wonder whether he has finished his homework.（我想知道他是否完成了他的作业。
）whether he has finished his homework.（我想知道他是否完成了他的作业。
）表语从句表语从句用来补充说明主语的性质或状态，通常由连接词"that" 或 "whether" 引导。
例如：- The truth is that he is a good student.（事实是他是个好学生。
）that he is a good student.（事实是他是个好学生。
）- My concern is whether he understands the instructions.（我关心的是他是否理解了这些指示。
）whether he understands the instructions.（我关心的是他是否理解了这些指示。
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专题八名词性从句that, whether 与if 引导名词性从句的区别——考题尝试(单句语法填空)1．(2016·北京高考改编)The most pleasant thing of the rainy season is that one can be entirely free from dust.2．(2013·全国卷Ⅰ改编)I am wondering whether you can pick him up at the airport. 3．(2015·北京高考改编)I truly believe that beauty comes from within. 4．(2012·浙江高考改编)I made a promise to myself that this year, my first year in high school, would be different.——规则点拨当名词性从句主干齐全，又不缺少状语时，用连接词引导。
连接词有that, whether 和if 。
1．that: that 连接名词性从句，只起连接作用，不在从句中作成分。
在宾语从句中可以省略。
The teacher informed us (that ) we would have a test the next day. 老师告知我们第二天进行测试。
2．if 和whether ：有“是否”的含义，表示一般疑问。
主语从句和表语从句中只能用whether 不能用if 。
if 和whether 也不在从句中作成分，只起连接作用。
The trouble is whether he can come on time. 麻烦是他是否能按时来。
[注意事项]1．在下列情况下一般只能用whether ，不用if ： (1)引导主语从句并在句首时； (2)引导表语从句时；(3)引导从句作介词宾语时； (4)从句后有“or not”时； (5)后接动词不定式时。
2．that 引导主语从句时，常用it 作形式主语，常见句型有：(1)it ＋be ＋形容词(如： obvious, true, natural, surprising, good, wonderful, funny, possible, likely, certain, probable, evident, clear, apparent 等)＋that 从句。
(2)it ＋be ＋名词(如： no wonder, an honour, a good thing, a pity, no surprise 等)＋that 从句。
(3)it ＋be ＋过去分词(如： said, reported, thought, estimated, expected, decided, announced, arranged, recognized 等)＋that 从句。
类似句型还有：It cannot be denied that ... /It must be admitted that ...(4)it ＋动词(如：seem, appear, happen, occur to sb., doesn 't matter, make no difference 等)＋that 从句。
——对点演练(单句语法填空)1．That he will come to the conference has excited every one of us. 2．It 's no wonder that you 've achieved so much success. 3．It happened to me that I had been away when he called. 4．I feel it a pity that I haven 't been to the get-together.5．We all find it important that we (should) make a quick decision about this matter. 6．I am not interested in whether they believe in me or not.——考题尝试(单句语法填空) 1．(2014·福建高考改编)Pick yourself up. Courage is doing what you 're afraid to do. 2．(2014·浙江高考改编)“Every time you eat a sweet, drink green tea.” This is what my mother used to tell me.3．(2013·北京高考改编)I took pride in what I had done in the absence of my father. 4．(2013·全国卷Ⅱ改编)By the way, do you know what they stand for? 5．(2013·福建高考改编)Personally speaking, I don 't think what these parents do is helpful to their children.——规则点拨连接代词who, whom, whose, what, which这几个连接词不但起连接作用，也在从句中作名词或代词所作的成分，如主语、表语、宾语、定语。
缺少连接代词，从句不完整。
What struck me most in the movie was the father 's deep love for his son. 影片中最打动我的是父亲对他儿子深深的爱。
What worries us most is who let out the secret. 最令我们担忧的是谁泄漏了秘密。
——对点演练(单句语法填空)1．It has not been decided yet who will preside over the meeting.2．I 'd like to start my own business — that 's what I 'd do if I had the money. 3．(2017·太原五中一模)Who will come to help with my English hasn 't been decided. 4. (2014·湖南高考改编)As John Lennon once said, life is what happens to you while you are busy making other plans.5．(2014·山东高考改编)It is difficult for us to imagine what life was like for slaves in the ancient world.——考题尝试(单句语法填空) 1．(2015·北京高考改编)How we understand things has a lot to do with what we feel. 2．(2015·福建高考改编)—I wonder how Mary has kept her figure after all these years. —By working out every day. 3．(2015·湖南高考改编)You have to know where you 're going if you are to plan the best way of getting there.4．(2015·重庆高考改编)We must find out when Karl is coming, so we can book a room for him. 5．(2014·广东高考改编)I didn 't understand why this would happen and ...2 / 4——规则点拨连接副词when, where, why, how这几个连接词不但起连接作用，也在从句中作状语，表示时间、地点、原因和方式。
He didn 't tell me when we would meet again. 他没告诉我什么时候我们再相见。
Go and get your coat. It 's where you left it. 去把大衣拿来。
就在你原来放的地方。
I have no idea how I can get to the railway station. 我不知道怎么能到火车站。
That 's why I want you to work there. 那就是我要你在那儿工作的原因。
——对点演练(单句语法填空) 1．(2017·大庆质量检测二)People who visited me used to ask me how I could sleep. “Doesn 't the sound of the traffic bother you? How can you get used to so much noise ？”2．The problem is how we can improve our reading skills in such a short time. 3．She asked a question why there was a delay. 4．(2017·湖南岳阳一中检测)Mr. White is opposed to repairing the old building, and that 's where Idon't agree.whatever, whoever, whichever, whenever, wherever, however ——考题尝试(单句语法填空)1．(2016·北京高考改编)Your support is important to our work. Whatever you can do helps. 2．(2013·江西高考改编)Whichever one of you breaks the window will have to pay for it. 3．(2014·北京高考改编)Some people believe whatever has happened before or is happening now will repeat itself in the future.——规则点拨它们的作用等同于who, what, which, where, when, how, 但语气加强了。