(完整版)英语名词性从句知识归纳
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。
名词性从句完整版经典实用
(2)It +be+形容词 (necessary/natural/wonderful/likely/strange/important/certain等 )＋that从句
eg.It is wonderful that all of you have passed the difficult exam.
•名词性从句完整版
•13
误：If Mary really heard him is really doubtful. 正：Whether Mary really heard him is really doubtful. 正：It was doubtful if /whether Mary really heard him.
•名词性从句完整版
⒈连词：引导从句但不作任何成分。
⑴that—没有意义，引导主/宾/表/同位语从句。 ①It is said that there will be a party tonight. ②They say (that) there will be a party tonight. ③Why he failed was that he made a vital mistake. ④The key that he succeeded lied in his hard work. ⑵if—是否，引导宾语从句，主语从句。
2 It was a pity that you failed in the exam.
•名词性从句完整版
用it 作形式主语的结构
• It＋be＋名词(短语)(a pity/a shame/a surprise/no wonder等)＋ that从句
ห้องสมุดไป่ตู้
eg. It is a pity that you have missed the wonderful lecture.
(完整版)名词性从句知识点总结
(完整版)名词性从句知识点总结名词性从句知识点总结名词性从句是指在复合句中充当名词的从句。
它可以在句子中充当主语、宾语、表语或同位语。
以下是名词性从句的几个重要知识点：主语从句主语从句在句子中充当主语的角色。
它引导的从句通常由关联词that引导，但有时可以省略。
例如：- That he stole the money is a fact.宾语从句宾语从句在句子中充当宾语的角色。
它通常由关联词that引导，但也可以由其他关联词如whether, if, who, whom等引导。
例如：- She asked me if I had finished my homework.if I had finished my homework.- I wonder whether he will pass the exam.whether he will pass the exam.表语从句表语从句在句子中充当表语的角色。
表语从句通常由关联词that引导，但有时也可以由其他关联词如whether, if, what等引导。
例如：- His biggest concern is that he might lose his job.that he might lose his job.- The question is what we should do next.what we should do next.同位语从句同位语从句在句子中充当同位语的角色，用来解释或说明名词的具体内容。
同位语从句通常由关联词that引导，但也可以由其他关联词如whether, if等引导。
例如：- The fact that he lied to us is very disappointing.that he lied to us is very disappointing.- My hope is that we can find a solution to the problem.that we can find a solution to the problem.以上是名词性从句的一些常见知识点总结。
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。
高中英语高考名词性从句专项复习(知识点+易错点+练习题)
高考英语名词性从句知识点一、that 从句1、主语从句（1）that 从句作主语时，常用it 作形式主语，常见的句型有：It+be+形容词（obvious, true, natural, surprising, good, wonderful, funny, possible, likely, certain, probable, etc.）+ that从句It+be+名词词组（no wonder, an honor, a good thing, a pity, no surprise, etc.）+ that 从句It+be+过去分词（said, reported, thought, expected, decided, announced, arranged, etc.）+ that 从句（2）that可以省略，但 that 从句位于句首时，that不能省略。
2、宾语从句（1）常见的可以接 that 从句作宾语的动词有see, say, know, imagine, discover, believe, tell, show, think, consider, be sure, be afraid等。
在可以接复合宾语的动词之后，如 think, make, consider等，可以用 it 作形式宾语。
（2）That 从句一般不能充当介词宾语，偶尔可作except, in 的宾语。
3、表语从句（that不可省略）4、同位语从句连词that引导同位语从句时，应在某些抽象名词之后，如：fact, hope, desire, thought, suggestion, idea, news, problem, possibility 等，对前面的名词起补充说明的作用，that在从句中不担当任何成分，不能省略。
二、whether/if从句1、在表语从句和同位语从句中，只能用 whether 不能用 if；当主语从句放于句首时，只能用 whether 不用 if；当 it 作形式主语，主语从句放在句末时用 whether或if均可；discuss 后引导宾语从句时，必须用whether。
【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。
名词性从句英语语法知识点汇总
名词性从句英语语法知识点汇总名词性从句是在句子中起名词作用的句子。
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。
下面就是小编给大家带来的名词性从句英语语法知识点汇总，希望大家喜欢！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.比较：whether 与 if 均为"是否"的意思。
但在下列情况下，whether 不能被 if 取代：1. whether 引导主语从句并在句首2. 引导表语从句3. whether 从句作介词宾语4. 从句后有"or not"Whether he will come is not clear.大部分连接词引导的主语从句都可以置于句末，用 it 充当形式主语。
It is not important who will go.It is still unknown which team will win the match.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。
英语名词性从句讲解【完整版】
2、I asked him if he could do me a favor .
If与whether的区别：
1、If不能引导放于句首的主语从句，而whether可以。 2、引导表语从句用whether，不用if。 3、引导同位语从句用whether，不用if。 4、whether可以引导从句作介词的宾语，不用if 。 5、whether or not 连在一起可以，但if不可以。而 “whether-----or not = if -----or not”
同位语从句：
定义：在复合句中充当同位语的句子。 同位语从句用来对其前面的抽象名词进行解释说明，被解释说明的词和 同位语在逻辑上是主表关系。 同位语常见名词：fact, suggestion, advice, idea, decision, news, thought, hope, belief, truth, doubt, promise, possibility, truth, warning, message, reason, report, question，explanation, wish, problem等。 常见的连接词：that, whether, what, who, how, when, where等。 用法： The thought that I want to buy my mother a birthday gift makes me excited.that 引导的同位语从句，解释说明 thought，从句不缺成 分 There is some doubt whether he will come. whether 引导同位语从句，if 不能引导同位语从句 we haven’t made the decision where we are going to spend our vacation. 有时同位语从句可以不紧跟解释说明的名词后面。 The news is surprising that he won the match.
- 1、下载文档前请自行甄别文档内容的完整性，平台不提供额外的编辑、内容补充、找答案等附加服务。
- 2、"仅部分预览"的文档,不可在线预览部分如存在完整性等问题,可反馈申请退款(可完整预览的文档不适用该条件!)。
- 3、如文档侵犯您的权益，请联系客服反馈,我们会尽快为您处理(人工客服工作时间：9:00-18:30)。
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。
e.g. 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e.g. I want to know whether he will see the film or not.(2) 介词宾语从句要用whether e.g. 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e.g.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。
e.g. I don’t suppose (that) it is his fault, is it?4.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。
e.g. 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?e.g. Where do you guess our art festival is to be held?Who 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e.g. 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……）e.g. 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)e.g. It is likely that there will be a snowstorm tomorrow.(3) It is well-know n/ reported/ recorded/ estimated/ said/ believed that…众所周知（据报道，据记载，据估计，据说，据人们相信)…e.g. 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……）e.g. 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e.g. 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）e.g. 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）e.g. 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：e.g. 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…e.g. 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）】e.g. 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。