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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。
高中名词性从句全面讲解及练习(含答案)High School English Lecture - Noun Clauses (Subject。
Predicate。
Object。
and Appositive Clauses)1.For a declarative sentence used as a noun clause。
use the n "that" + subject and verb。
"That" introduces the subordinate clause。
which is complete and not a part of the main clause。
The subject can be replaced by "it" as a formal subject。
and the first "that" in an object clause can be omitted。
For example。
"You study hard."Subject Clause: That you study hard is known to us。
= It is known to us that you study hard.Predicate Clause: XXX is that you study hard.Object Clause: I think (that) you study hard。
and that (cannot be omitted)。
Appositive Clause: XXX you study hard is known to us。
*Compare with the subject clause!If a XXX clarifies an abstract noun。
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。
名词性从句是一种具有名词功能的非独立分句。
具体用法见下表：主语从句大多数主语从句都可以用it作形式主语而把主语从句置于句尾。
(what引导的主语从句表示“……的东西”时，一般不用it作形式主语；whatever, whoever, whichever一般也不用it作形式主语。
)►It makes no difference where we shall have the meeting.我们在哪开会无所谓。
【注意】(1)常见的it替代that引导的主语从句的句式主要有以下几种：①It＋系动词＋形容词(necessary/right/likely/important/certain...)＋that从句②It＋be＋名词(短语)(a pity/a shame/good news/a fact/an honour...)＋that从句③It＋be＋过去分词(said/told/heard/reported/decided/suggested...)＋that从句④It＋特殊动词(seem/appear/happen/matter)＋that从句(2)在“It is necessary/important/natural...＋that从句”的结构中，从句谓语常用“(should ＋)动词原形”。
宾语从句1．动词find, feel, think, consider, make, believe等后有that引导的宾语从句作宾语补足语时，则常用it作形式宾语而将that宾语从句后置。
►I think it necessary that we take plenty of boiled water every day.我认为每天摄入足量的白开水很有必要。
2．有些动词(短语)不能直接跟宾语从句，需要借助形式宾语it。
常见的有hate, enjoy, like, dislike, love, appreciate, see to等。
高考英语语法复习名词性从句讲解练习名词性从句是指在复合句中起名词作用的句子，功能相当于名词词组。
名词性从句在复合句中能作主语、宾语、表语、同位语等，根据在句中的语法功能可分为主语从句、宾语从句、表语从句和同位语从句。
一、主语从句【定义】在复合句中，作主语的句子称为主语从句。
【常见的连接词】（连接词在句中不能省略）that, whether, who, what, whatever, whoever, where, when, why, how等。
【用法】连接词 that 引导That we should learn English well is very important.主语从句中 we should learn English well句子完整，不缺成分，用that引导，that 不能省连接词whether，if 引导whether 引导的主语从句可放句首，也可放句中，表“是否”if 引导的主语从句只能引导动词后的宾语Whether I will go or not depend on the weather.It remains to be seen whether / if they can finish the task in time.2.连接代词what, who, which, whose, whatever, whichever，whoever等引导What matters most is your attitude.3.连接副词when，where，why，how等引导How he made it is still unknown.4.it作形式主语为了避免句子头重脚轻，通常把形式主语it放在句首，真正的主语放在句子后面。
常见句型：(1) It is + n.+ that + 句子It is +（a pity / a shame / a fact …）+ that ...(2) It is + adj.+ that + 句子It is +（true / clear / important …）+ that ...(3) It is + 过去分词 + that + 句子It is+ said / announced / expected / believed / hoped… + that ...(4) It seems /appears / happens / turned out that + 句子(5) It hit sb./occurred to sb.that + 句子二、宾语从句【定义】在复合句中，作宾语的句子称为宾语从句。
名词性从句一、名词性从句的种类名词性从句一共有三种: that从句、whether(if)从句、疑问词所引导的从句；名词性从句具有名词的功能，可充当句子主语、宾语、表语、同位语，用名词性从句充当这几种成分，称为主语从句、宾语从句、表语从句、同位语从句。
二、that从句任何一个陈述句前面冠子that，即为that从句:He doesn't believe my words.(句子)→ that he doesn't believe my words.(名词性从句)He enjoys dancing.(句子)→ that he enjoys dancing(名词性从句)There is a lot of work to do.(句子)→ that there is a lot of work to do.(名词性从句)三、whether从句本从句系由一般疑问句演变而来。
1.问句有be动词时，主语与be动词还原，前面冠以whether(if):Is he happy?(句子)→ whether he is happy(名词性从句)(他是否快乐)2.问句有一般助动词(can、will、may、should、ought to、must、have)时主语与助动词还原，前面冠以whetherCan he do it?(句子)→ whether he can do it(名词性从句)(他是否能做这件事)Has he done it→ whether he has done it(他是否已做好此事)3.问句有do、does、did等助动词时主语与助动词还原，再将do、does、did去掉，后面的动词依人称和时态变化Did he come?(问句)→ whether he did come→ whether he came(名词性从句)(他是否来了) Does he like it?→→四、疑问词从句本从句系由疑问词( when what、how、where、why)等引导的特殊疑问句变化而成，这种由疑问词引导的问句称为特殊疑问句。
名词性从句用法解说与专项练习题及答案名词性从句包含主语从句、宾语从句、表语从句和同位语从句。
高考常从连结词的选择、语序、语气、时态等方面来考查。
名词性从句中的连结词有连词that / whether / as if，连结代词what / who/ which /whose / whatever / whoever / whomever / whichever，连结副词where /when /why / how / wherever / whenever。
第 1讲指引名词性从句的连结词考点 1. 指引名词性从句的连结词有哪些有学生以为，指引同位语从句只好用that,这句话对吗？先看下边几个句子。
①I have no question that he will come.②I have a question whether he will come③I have a question when he will come.我们能够看出：上边三个句子中question后边都是同位语从句，都是说明question的内容的。
在句①中，同位语从句的原句是陈说句，由that指引；在句②中，原句是一般疑问句，由whether 指引；在句③中，同位语从句的原句是特别疑问句，特别疑问词也起着连结作用。
其实，所出名词性从句的连结词都有上边的三种状况。
宾语从句：I don ’t know that he will come.I don ’t know whether/if he will come.I don ’t know when he will come.表语从句：What I don ’t know is that he will come.What I don ’t know is whether he will come.What I don ’t know is when he will come.主语从句That he will come is obvious.Whether he will come isn’t known yet.When he will come isn’t known yet.1.【 2010浙江】 It is uncertain______ side effect themedicine will bring about,although about two thousand patients have taken it.A. thatB. whatC. howD. whether2.【 2012全国新课标】 It is by no means clear______ thepresident can do to end the strike.A. howB. whichC. thatD. what3.【 2012 山东】It doesn’t matter ______ you pay by cashor credit card in this store.A. howB. whetherC. whatD. why4.【 2013 陕西】 It remains to be seen ______ the newlyformed committee ’s policy can be put into practice.A. thatB. whichC. whatD. whether5.【 2009 天津】It is obvious to the students______ theyshould get well prepared for their future.A. asB. whichC. whetherD. that6.【 2012 江西】 It suddenly occurred to him ______he had left his keys in the office.A. whetherB. whereC. whichD. that考点 2.指引词that的省略问题主语从句、表语从句、同位语从句中连词that不可以省略。
英语高中名词性从句练习题及讲解在一个阳光明媚的午后，小明坐在窗边，手里拿着一本英语书，眼睛却望着窗外的蓝天白云。
他心里想，要是能把英语学得像家乡的方言一样溜，那该多好啊！突然，他的脑海中浮现出了一个奇妙的想法：用家乡的俚语来练习英语名词性从句。
这样既能增加学习的趣味性，又能加深对英语的理解。
于是，他拿起笔，开始创作起来。
1. 定语从句：小明的狗，它的名字叫做“旺财”，是村里最聪明的。
- 翻译：The dog of Xiaoming, which is named "Wangcai", is the smartest in the village.2. 主语从句：谁都知道，小明的英语成绩是班上最好的。
- 翻译：It is known to all that Xiaoming's English gradeis the best in the class.3. 宾语从句：老师经常告诉我们，学习英语没有捷径。
- 翻译：The teacher often tells us that there is noshortcut in learning English.4. 同位语从句：小明的梦想，那就是成为一名英语老师。
- 翻译：Xiaoming's dream, that is to become an English teacher.5. 表语从句：事实就是这样，小明的英语水平已经很高了。
- 翻译：The fact is that Xiaoming's English level isalready very high.小明一边写，一边忍不住笑出声来。
他想象着同学们用家乡话读这些句子的样子，一定很有趣。
他决定把这些练习题带到课堂上，让大家一起分享这份快乐。
老师走进教室，看到小明的练习题，也被逗笑了。
他决定把这些练习题加入到课程中，让全班同学都来练习。
就这样，小明的创意不仅让自己的英语学习变得更加有趣，也让整个班级的学习氛围变得更加活跃。
高中英语名词性从句详细讲解与练习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语序。
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 oThat 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。
D 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引导的土语从句: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 greatimportance.他是否能按时完成任务非常重要。
Whether you can succeed or not depends on howhard 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。
一对一个性化学科优化学案鹰击长空—基础不丢一、概述在复合句中具有名词的性质的作主语、表语、同位语、宾语的从句叫名词性从句。
因此，我们把主语从句、表语从句、同位语从句和宾语从句这四种从句统称为名词性从句。
It is a fact that English is being accepted as an international language. (主语从句)The trouble is that she has lost his address.（表语从句）They have no idea at all where he has gone.（同位语从句）Do you remember how he came?（宾语从句）二、主语从句(subject clauses)1、概述在复合句中起主语作用的从句叫主语从句。
引导主语从句的词有从属连词、关系代词、连接副词等。
引导主语从句的关联词有从属连词that、whether，关系代词：who, what, which , whom, whose, whatever, whoever, whomever, whichever；关系副词：when, where, how, why, however, whenever, wherever等。
That you don’t like him is none of my business.What he said is true.Whether the football game will be played depends on the weather.2、从属连词that，whether引导的主语从句。
从属连词that，whether在主语从句中的作用只是引导主语从句，它们在从句中不担任成分，不能省略。
Whether she will come or not is still a question.That they will go is certain.Whether she's coming or not doesn't matter too much.3、it作形式主语引导主语从句。
如果主语从句太长，为避免句子结构头重脚轻，我们可用it作形式主语，而把主语从句放在主句谓语部分之后。
That引导的主语从句可用it代替，that 不可省略。
用作it作形式主语的结构：（1）It is/was +形容词+that 从句It’s natural that…很自然……It’s obvious that …显而易见……（2）It is/was +名词+that 从句It’s a pity that…遗憾的是……It’s a fact that …事实是……（3）It +不及物动词+that 从句It seems that…似乎……It turns out that…结果……（4）It is/was +过去分词+that 从句It’s reported that…据报道……It’s believed that…据认为……It is a pity that she has made such a mistake.It's strange that he didn't come yesterday.4、由关系代词引导的主语从句。
关系代词who, what, which, whom, whose, whatever, whoever, whomever, whichever等，引导主语从句时，它们分别在从句中担任主语、宾语或定语，不能省略。
Whoever leaves the room last ought to turn off the lights.What you have done might do harm to other people.What he said at the meeting astonished everybody present.Who made the long distance call is not important.5、关系副词引导的主语从句。
连接副词有when, where, why, how, however, whenever, wherever等引导主语从句时，它们在从句中担任状语，不能省略。
此类主语从句可以转换为以it作形式主语的句子。
Why he didn't come here is not clear to anyone.Where she has gone is not known yet.When they will start has not been decided yet.三、表语从句1、概述用作表语的从句叫作表语从句，它位于主句中的连系动词之后。
引导表语从句的词有从属连词that、whether、as though(if)；关系代词who, what, which, whom, whose, whatever, whoever, whomever, whichever等；关系副词when, where, why, how, however, whenever, wherever等。
可以接表语从句的连系动词有be, look, remain, seem等。
That引导表语从句时，在口语中可以省略。
The trouble is that we are short of money.That is why stone walls are used instead of fences around New England fields.At that time, it seemed as if I couldn't think of the right word anyhow.2、由从属连词that，whether引导的表语从句。
that在引导表语从句时无词义，而whether有词义，意为“是否”。
这时主句的主语常常是些抽象名词，如question(问题)，result(结果)，chance(可能性)，suggestion(建议)，idea(想法)，reason(理由)等。
表语从句对主句主语进行说明、解释，使主语的内容具体化。
The trouble is (that) she has lost his money.The question is whether we need more ice cream3、由关系代词引导的表语从句。
关系代词who, what, which, whom, whose, whatever, whoever, whomever, whichever等引导表语从句，在句中作主语、宾语、表语，关系代词不能省略。
The question is which of us should go.The problem was who could do the work.That's what he is worrying about.4、由关系副词引导的表语从句。
Go and get your coat. It's where you left it.That is how mice ruin many stores of grain every year.5、由连词because，as if/as though等引导的表语从句。
It looked as if it was going to snow.That's because we never thought of it.四、同位语从句1、概述用作同位语的从句叫同位语从句。
它一般跟在抽象名词fact，idea，news，belief，thought，truth，doubt，suggestion，instruction，reason，question等之后，对这些名词进行说明或解释。
引导同位语从句的词除连词that，whether外，还有关系代词what, which, who, 以及关系副词how，when，where，why等。
It is a fact that smoking is a danger to health.I have no idea what you mean.2、由从属连词that，whether引导的同位语从句。
Information has been put forward that more middle school graduates will be admitted into universities.I didn't receive the news that the meeting had been put off.我没有听到会议被推迟的消息。
3、由关系代词引导的同位语从句。
The question who should be the first has not been settled.You can have no idea what he said.4、由关系副词引导的同位语从句。
I have no idea when he will be back.They usually write exact instructions how the music is to be played.五、宾语从句(object clauses)1、概述用作宾语的从句叫做宾语从句。
宾语从句的位置与陈述句基本结构中的宾语相同。
宾语从句可以由从属连词that whether、if，关系代词what, who, whose, which和关系副词when、where、how、why等引导。
He said he wanted to go to town.I hope you'll be better soon.He asked me whether she was coming.2、作动词宾语（1）由从属连词that引导的宾语从句。
that引导宾语从句时，只起引导词作用，在句中不做成分，在口语和非正式文体中常省去。
I think (that) he'll be right in a few days.I wish （that）she would understand me.（2）由关系代词what, who, whose, which引导的宾语从句，在句中作成分，即主语、宾语、表语和定语，关系代词在句中不能省略。
A computer can only do what you have instructed it to do．Do you know whom they are waiting for?He asked whose dictionary it was.He can't tell which method they will use for the experiment.（3）关系副词when，where，how，why等引导宾语从句。
