英语名词性从句知识归纳
高中英语语法总结名词性从句
名词性从句在句子中起名词作用的句子叫名词性从句(Noun Clauses）。
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、介词宾语等，因此根据它在句中不同的语法功能，名词从句又可分别称为主语从句、宾语从句、表语从句和同位语从句。
第一节知识点讲解顾名思义，主语从句在句子中作主语。
有时本身出现在主语的位置上，也有时出于句子结构的考虑退到句子的尾部，前面用形式主语it代替。
从句作主语时，谓语动词一般为单数形式。
如: What I saw was beyond any verbal description.That his hair was turning grey worried him a bit.Why the company denied the contract is still unknown.When and where the government will build a city square is under discussion.It is pretty annoying that a small part of the machine is missing.It remains to be seen whether the new novel will be well received.Tips: 主语从句的that绝对不能省去。
因为句子是不能做主语的，故用that引导。
若去掉则没有了主语，而宾语从句的that可省。
：That he is right is known to all of us.宾语从句：We all know (that) he is right.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。
高中英语语法：名词性从句知识汇总
高中英语语法：名词性从句知识汇总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。
当名词性从句要采用陈述句语序。
由一个含疑问意义的连词引起时，必须将该连词放在名词性从句的开头，且该从句语序不能倒装。
一、引导名词性从句的关联词引导名词性从句的关联词大致相同，它们分别是：连词：that, whether, if；关系代词：who, what, which , whom, whose, whatever, whoever, whomever, whichever；关系副词：when, where, how, why, however, whenever, wherever。
引导从句时一般不用逗号和主句分开。
连词that在从句中不作成分，不含疑问意义；而wh-连词在从句中作成分，且含有疑问意义；或what/where从句相当于一个名词后加一个定语从句。
It worried her a bit that her hair was turning grey.她的头发在变白令她有点担忧。
（that在从句中只起引导词作用，不作成分）What caused the accident is still a complete mystery.事故发生的原因仍然是个不解之谜。
（What在从句中作主语）2、that与whether引导名词性从句的区别。
（1）动词doubt表示“怀疑、不知道”解时，肯定句接whether引导的宾语从句；否定句don’t doubt和疑问句Do you doubt要接that引导的从句。
I don’t doubt that he will come soon.我不怀疑他不久会来。
（此处不用whether）Can you doubt that he will win?你怀疑他会赢吗？（此处不用whether）比较：doubt表示“不信”解时，表示强烈的不相信时，在陈述句中可接that从句。
(完整版)英语名词性从句知识归纳
名词性从句知识归纳名词性从句是指在句子中相当于名词的从句，主要包括主语从句、宾语从句、表语从句和同位语从句。
名词性从句不是修饰性从句，而是复合句中的主干。
e.g. That the boy failed again in the exam disappointed his mother. （主语从句）I know that he is writing his composition in his room. （宾语从句）The question is how we can finish it on time. （表语从句）The fact that some Chinese are still poor is really a great problem. （同位语从句）一、宾语从句---及物动词、介词、部分形容词（certain, sure, glad, afraid, frightened, happy, pleased, sad, sorry, surprised, upset, satisfied等）后e.g. I believe (that) he is honest. (that不充当从句内的任何成分，一般情况可省略)I’m glad that you are satisfied with your job. (that不充当从句内的任何成分)He doesn’t care if/whether it isn’t a fine day. (if/whether不充当从句内的任何成分) Please tell me what you want. (what充当从句内的宾语)She always thinks of how she can work well.(how充当从句内的状语)I don’t believe whatever he said. (whatever充当从句内的宾语，意为“任何事”)I’ll take whoever wants to go. (whoever从当从句内的主语，意为“任何人”)【宾语从句要点拓展】1. that引导宾语从句时一般可以省略，若由and或or连接两个宾语从句时，第一个从句中的that可以省略，而第二个分句前的that不可省略。
名词性从句知识点
名词性从句知识点在英语语法中，名词性从句是一个重要且复杂的部分。
它在句子中起着名词的作用，包括主语从句、宾语从句、表语从句和同位语从句。
接下来，让我们逐一深入了解。
一、主语从句主语从句即在句子中充当主语的从句。
例如，“What he said is true”（他说的是真的。
）在这个句子中，“What he said”就是主语从句。
引导主语从句的连接词主要有三类：1、从属连词：that、whetherThat he will come is certain （他会来是肯定的。
）这里的“that”在从句中不充当成分，只起引导作用。
Whether she will go there is not decided （她是否会去那里还没决定。
）“whether”表示“是否”。
2、连接代词：what、who、which、whose、whatever、whichever、whoever 等What you need is more practice （你需要的是更多的练习。
）“what”在从句中充当宾语。
3、连接副词：when、where、why、how 等When the meeting will be held has not been announced （会议何时举行还未宣布。
）需要注意的是，主语从句后置时，常用 it 作形式主语，而将真正的主语从句放在后面。
例如：It is unknown whether he will come （他是否会来还不知道。
）二、宾语从句宾语从句在句中充当宾语。
比如，“I know that he is a student”（我知道他是个学生。
）“that he is a student”就是宾语从句。
引导宾语从句的连接词与主语从句类似：1、从属连词：that（在口语或非正式文体中常省略）、whether、ifHe said （that) he was busyI wonder if/whether he will come2、连接代词：what、who、which、whose、whatever、whichever、whoever 等She asked me what I was doing3、连接副词：when、where、why、how 等Could you tell me how I can get there?宾语从句的时态要根据主句的时态来变化。
【英语知识点】名词性从句语法总结归纳
【英语知识点】名词性从句语法总结归纳名词性从句是在句子中起名词作用的句子。
名词性从句又可分别称为主语从句、宾语从句、表语从句和同位语从句。
接下来分享名词性从句的语法，供参考。
1.主语从句通常由下列词引导：①从属连词that、whether等。
②连接代词what、who、which、whatever、whoever、whom、whichever等。
③连接副词how、when、where、why等。
that在句中无词义，只起连接作用;连接代词和连接副词都在句中既保留自己的疑问含义、又起连接作用，连接代词主要作主语，宾语，表语，定语等，连接副词在从句中作状语。
注：whom、who指人，what指物，whatever、whoever表示泛指意义。
2.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：It's a great pity that they didn't getmarried.他们没能结婚，真是令人惋惜。
(2)It be+形容词+that从句：It's splendid that you passed yourexam.你通过考试了，真棒。
(3)It be+动词的过去分词+主语从句：It's said that he has been there many times.据说他去过那儿很多次。
(4)It+不及物动词+that 从句：It is suggested (requested, proposed, desired, etc.) that…。
1.宾语从句，是名词性从句的一种。
在主从复合句中充当宾语，位于及物动词、介词或复合谓语之后的从句称为宾语从句。
宾语从句分为三类：动词的宾语从句，介词的宾语从句和形容词的宾语从句。
2.宾语从句的引导词有三种：(1)以that引导的宾语从句：that引导的宾语从句一般都是由陈述句充当，引导词that没有实际意义，不在从句中作任何成分，that可以省略，而且从句成分齐全，句意完整。
高中英语知识点归纳名词性从句
高中英语知识点归纳名词性从句名词性从句是英语中的一个重要语法知识点，它在句子中起着名词的作用。
名词性从句一般由连接词引导，可以作主语、表语、宾语、同位语等。
它的运用能够使句子更加丰富多样，增加表达的灵活性。
本文将对名词性从句的几种常见情况进行归纳总结。
一、名词性从句作主语名词性从句可以作为句子的主语，它承担了动词的逻辑主语的地位。
常用的连接词有：that, whether, if等。
1. 引导词为that的情况：例如：That he didn't come as he had promised was disappointing.翻译：他没有按照承诺的那样来，真令人失望。
2. 引导词为whether/if的情况：例如：Whether he will come or not remains unknown.翻译：他是否会来还是个未知数。
二、名词性从句作表语名词性从句可以作为句子的表语，表达主语的性质、特点、状态等。
常用的连接词有：that, whether, what等。
例如：It is unclear whether he is telling the truth or not.翻译：他是否在说真话还不清楚。
三、名词性从句作宾语名词性从句可以作为句子的宾语，接在及物动词、介词后面。
常用的连接词有：that, whether, if, what, who, whom, which, whose等。
1. 当宾语从句是及物动词的宾语时，常用连接词是that。
例如：He said that he would come tomorrow.翻译：他说他明天会来。
2. 当宾语从句是介词的宾语时，常用连接词是whether/if, 当介词为介词to时，连接词也可以用为不定式to。
例如：She is not sure about whether/if he will join us.翻译：她不确定他是否会加入我们。
高考英语名词性从句考点归纳
名词性从句名词性从句指在复合句中起名词作用的从句，它在句子中可作主语、宾语、表语或同位语。
名词性从句既是中学英语教学的重点，也是高考考查的热点。
一、名词性从句的分类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。
其连接词有that, if, whether；连接代词who, what, which；连接副词when,where, how, why等。
考查热点一：对主语从句的考查主语从句在复合句中充当主语，它可以放在主句谓语动词之前。
但为了保持句子平衡，多数情况下可用it 作形式主语，而把主语从句置于句尾。
考查热点二：对宾语从句的考查宾语从句在句子中作及物动词或介词的宾语。
如果主句的谓语动词是及物动make, find, see, think等，则把宾语从句置于宾语补足语之后，用 it 作形式宾语。
另外，某些作表语的形容词，如 sure, happy, glad, certain等之后也可以带宾语从句。
考查热点三：对表语从句的考查表语从句在句子中作表语，位于主句中的系动词之后。
一、什么是表语( predicative)在形式上，位于系动词后的就是表语。
从含义上讲，表语是回答主语“是什么”或“怎么样”的语法成分。
即是指“是”字句“是”字后面的成分。
表语就是起表述作用的句子成分。
它修饰的是主语。
表语是用来说明主语的身份、性质、品性、特征和状态的。
表语须和连系动词一起构成句子的复合谓语。
表语常由名词、形容词、副词、介词短语、不定式、动词的-ing、动词的-ed、从句来充当，它常位于连系动词( be, become,appear, seem等)之后。
Albert Einstein was a famous professor of physics.二、不定式、动名词与分词作表语的区别不定式和动名词作表语相当于一个名词作表语，含义是回答主语“是什么”；分词作表语相当于形容词作表语，含义是回答主语“怎么样”。
高中英语名词性从句详解
名词性从句—高中英语语法（1)表语从句ﻫ1. 定义：用作表语的从句叫做表语从句ﻫ2. 构成:关联词+简单句３．引导表语从句的关联词的种类：ﻫ（1）从属连词thaｔ。
如：ﻫThe ｔｒouble is thａt I haｖe loｓt hｉｓaddreｓs. 麻烦是我把他的地址丢了。
ﻫ(2）从属连词ｗhetheｒ, as, as if。
如:ﻫＨe ｌookｅd just as he had lookeｄｔen years befoｒe. 他看起来还与十年前一样。
ﻫＴhe questｉon is wheｔher thｅy wｉｌl ｂｅaｂle ｔｏhelｐｕs. 问题是他们是否能帮我们。
注:从属连词iｆ一般不用来引导表语从句，但as iｆ却可引导表语从句，如：All this waｓoveｒtｗenｔy yｅars ago, but it's aｓif it was onｌy ｙｅｓｔｅrdａｙ．ﻫ这都是２0多年前的事了，但宛如昨天一样。
ﻫ能跟表语从句的谓语动词一般为系动词ｂe, seeｍ，ｌook等。
如:Iｔlｏoｋed ａsｉf it ｗａs going to rain.看起来天要下雨了。
(3)连接代词who, ｗhoｍ, ｗhｏsｅ, what,which,whoｅｖer, wｈaｔeveｒ, ｗhichever连接副词where，ｗheｎ，how,ｗhy。
如：Ｔhｅprｏbｌeｍis who wｅcａn gｅt tｏｒepｌａce hｅr.问题是我们能找到谁去替换她呢。
Ｔhe quesｔion is hｏw hｅｄｉd it. 问题是他是如何做此事的。
ﻫThat wａｓwhat she dｉｄthis mornｉng on ｒeacｈinｇｔhe atｔic. 那就是她今晨上了阁楼干的。
解释:ﻫ１. 连词ｂecａuse可引导表语从句。
如:Ｉthiｎｋit is bｅcaｕｓe you arｅdoing too muｃh. 我想这是因为你做得太多。
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英语名词性从句知识归纳 Prepared on 22 November 2020名词性从句知识归纳名词性从句是指在句子中相当于名词的从句，主要包括主语从句、宾语从句、表语从句和同位语从句。
名词性从句不是修饰性从句，而是复合句中的主干。
. That the boy failed again in the exam disappointed his mother. （主语从句）I know that he is writing his composition in his room. （宾语从句）The question is how we can finish it on time. （表语从句）The fact that some Chinese are still poor is really a great problem. （同位语从句）一、宾语从句---及物动词、介词、部分形容词（certain, sure, glad, afraid, frightened, happy, pleased, sad, sorry, surprised, upset, satisfied等）后. I believe (that) he is honest. (that不充当从句内的任何成分，一般情况可省略)I’m glad that you are satisfied with your job. (that不充当从句内的任何成分)He doesn’t care if/whether it isn’t a fine day. (if/whether不充当从句内的任何成分)Please tell me what you want. (what充当从句内的宾语)She always thinks of how she can work well. (how充当从句内的状语)I don’t believe whatever he said. (whatever充当从句内的宾语，意为“任何事”)I’ll take whoever wants to go. (whoever从当从句内的主语，意为“任何人”)【宾语从句要点拓展】1. that引导宾语从句时一般可以省略，若由and或or 连接两个宾语从句时，第一个从句中的that可以省略，而第二个分句前的that 不可省略。
. He told me (that) they could not decide what to do and that they asked my advice.2. whether和if引导宾语从句一般可以互换使用，但以下情况只能使用whether(1) whether可与or not连用 . I want to know whether he will see the film or not.(2) 介词宾语从句要用whether . I don’t care about whether you have money or not.(3) that引导的宾语从句只能放于in, except, besides和but四个介词后.The Swede stood still, except that his lips moved slightly.3. 转移否定---当主句是I/ We think (believe, consider, expect, suppose, guess, imagine) 时，其后的宾语从句如果是否定形式，常把从句中的否定词not转移到主句中。
. I don’t suppose (that) it is his fault, is it4.时态问题---宾语从句的时态常受到主句时态影响，若主句是现在时或将来时，从句可用任何所需要的时态；若主句是过去时态，从句一般用过去的某种形式，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，则从句仍用一般现在时态。
. I know(that) he didn’t tell you what he would come then.We believed that he had earned enough money to build a house.The teacher told us that Tom had left us for America.The teacher told us that the sun rises in the east.5. 一种特殊类型的宾语从句---在这种句子里do you think等意为插入语，但实为主句，因此余下部分应用陈述语序余下部分. Where do you guess our art festival is to be heldWho do you think the public might choose as their favorite singer this year二、主语从句---位于句首，常用it做形式主语. That he will come and help you is certain. (that不充当从句内的任何成分，不可省略)Whether there is life on the moon is an interesting question. (whether 不充当从句内的任何成分，不能用if)What he wants to tell us is not clear. (what充当从句内的宾语)Who will win the match is still unknown. (who充当从句内的主语)Where the English evening will be held has not yet been announced. (where充当从句内的状语)Whatever he said was right. (whatever充当从句内的宾语)It is known to us how he became a writer. (it为形式主语，代替how引导的主语从句)【主语从句要点拓展】1. it做形式主语的结构(1) It’s a pity/ a shame/ an honor/ a fact/ no wonder/ common sense/ good news that… 遗憾的是（荣耀的是、事实是、难怪是、常识是，好消息是……）. It is a pity that you didn’t attend the lecture yesterday.(2) It’s clear/ right/ true/ certain/ necessary/ (un) likely/ important/ (im) possible/ obvious/ remarkable that… ……很清楚（正确，必要，重要，可能，值得注意等). It is likely that there will be a snowstorm tomorrow.(3) It is well-known/ reported/ recorded/ estimated/ said/ beli eved that…众所周知（据报道，据记载，据估计，据说，据人们相信)…. It is said that his father left him nothing.(4)It turns out/ seems/ appears/ happens/ matters…) that…结果是……（似乎是, 碰巧是, 重要的是……）. It happened (to me) that I had been away when he called.2. it做形式主语与it is(was)… that…强调句式的区分. It is a pity that you didn’t go to see the film.It is in the morning that the murder took place.解题方法：将it is/was… that 去掉，看余下部分是否完整，若完整即为强调句式；反之为it作形式主语。
三、表语从句---系动词后（常见系动词：be, look, remain, seem, appear 等）. The problem is that they can’t get here early enough.The question is whether we can reduce the cost of the product.It looks as if it’s going to rain.The question is who (which of you) will be the next speaker.What he wants to get is whatever you have.This is where our problem lies.That is why he didn’t come to the meeting.四、同位语从句---抽象名词后（从句对抽象名词进行补充说明或解释说明抽象名词的内容）. The news that he had landed on the moon spread all over the world.The thought came to him that Mary had probably fallen ill.He must answer the question whether he agrees to it or not.I have no idea when he will come back home.名词性从句高考趋势与考察重点一、语序问题---名词性从句内部一律使用陈述语序注意以下句子：. I don’t know what is the matter with him.I have no idea what was the matter with him.Could you tell us what was wrong/ the trouble with him yesterday二、从句中的虚拟语气问题1. 主语从句：(1) It is important/ natural/ necessary/ essential/ strange/ that …(should) do…(2) It is suggested/ advised/ deman ded/ ordered/ requested that …(should) do…. It is important that every student (should) learn a foreign language.It is suggested that students (should) check their answers before handing in the paper.2. 宾语从句：在表示“命令、要求、建议、决定”等意义的动词后的宾语从句常用“（should）+ do”【insist（坚持），order, urge, command（命令），require, request, demand（要求），advise, suggest, propose, recommend（建议）】. The commander ordered that troops (should) set off at once.The doctor suggested that he (should) give up smoking.3. 表语从句：当主句的主语为order, command, requirement, request, demand, advice, suggestion, proposal, recommendation等名词时，表语从句的谓语动词用“ (should) do”的形式。