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名词性从句与副词性从句的区别与应用名词性从句和副词性从句都属于从属从句的一种，在句子中充当不同的语法角色。
两者在功能和结构上存在一些明显的区别，本文将就名词性从句和副词性从句的区别以及它们的应用进行探讨。
一、名词性从句名词性从句是在复合句中充当名词成分的从句，可以作主语、宾语、表语、同位语等。
名词性从句的引导词有：1. 连接代词：如what, which, who, whom, whose, whoever, whomever 等。
2. 连接副词：如when, where, why, how等。
名词性从句的应用：1. 作主语：名词性从句可以作为主语，引导词可以是连接代词或连接副词。
例如：What she said is true.Why he left early remains a mystery.2. 作宾语：名词性从句可以作为及物动词或介词的宾语。
例如：I don't know what he is doing now.He is unsure of whether he can attend the meeting.3. 作表语：名词性从句可以作为系动词的表语。
例如：The question is whether we should support the proposal.4. 作同位语：名词性从句可以作为名词的同位语。
例如：The fact that he passed the exam surprised everyone.二、副词性从句副词性从句是在复合句中充当副词成分的从句，可以修饰动词、形容词、副词或整个句子。
副词性从句的引导词包括：1. 连接词：如 that, if, whether, when, where, why, how等。
2. 连接副词：如how, when, where, why等。
3. 连接介词短语：如in order that, so that等。
副词性从句的应用：1. 时间状语从句：副词性从句可以表示时间状语，修饰动词或整个句子。
名词性从句知识点总结一、名词性从句作主语名词性从句可以作为主语，通常由关系代词引导，包括 that, who, whom, whose, which 等。
例如：1. What he said is true.（他说的是真的。
）2. Whoever comes late will be punished.（谁迟到谁受惩罚。
）二、名词性从句作宾语名词性从句可以作及物动词的宾语，常由连接词 that, if, whether 等引导。
例如：1. He said that he would come.（他说他会来。
）2. I don’t know whether she is coming.（我不知道她是否会来。
）三、名词性从句作表语名词性从句可以作表语，通常由连接词 that, whether, who 等引导。
例如：1. The problem is whether we should go.（问题是我们是否要去。
）2. My hope is that you can help me.（我的希望是你能帮助我。
）四、名词性从句作定语名词性从句可以作定语，通常由关系代词引导，包括 that, who, whom, whose, which 等。
例如：1. The book that I bought yesterday is very interesting.（我昨天买的书非常有趣。
）2. The girl who is standing there is my sister.（站在那里的女孩是我的妹妹。
）五、名词性从句作同位语名词性从句可以作同位语，通常由连接词 that 引导。
例如：1. The news that she has passed the exam is exciting.（她通过考试的消息让人兴奋。
）2. The fact that he is leaving surprises me.（他要走的事实让我感到惊讶。
名词性从句的用法解析名词性从句是英语语法中的一种特殊结构，它在句子中扮演名词的角色。
名词性从句可以作主语、宾语、表语和补语，它的引导词通常包括“that”、“whether/if”、“wh-”疑问词以及“whoever”、“whatever”、“whichever”等。
1. 名词性从句作主语名词性从句可以作整个句子的主语，常见的引导词是“that”和“whether/if”：例句1：That he is late again is a disappointment to me.例句2：Whether/if she will attend the meeting is still uncertain.2. 名词性从句作宾语名词性从句可以作及物动词或介词的宾语，常见的引导词有“that”、“whether/if”以及wh-疑问词：例句1：He doesn't know whether/if he should accept the job offer.例句2：I doubt that they will arrive on time.例句3：She is worried about what will happen tomorrow.3. 名词性从句作表语名词性从句可以作句子中的表语，常见的引导词有“that”、“whether/if”以及wh-疑问词：例句1：His main concern is that he won't have enough time to finishthe project.例句2：The question is whether/if she can handle the responsibility.4. 名词性从句作补语名词性从句可以作某些动词的表语补语，通常以“that”引导：例句1：She considered it necessary that he should apologize.例句2：He made it clear that he didn't want to participate in the discussion.需要注意的是，在名词性从句中，有时候可以省略连词或引导词，尤其是在口语中。
名词性从句作主语的用法名词性从句是指在句子中充当名词的地位，可以作主语、宾语、表语等。
其中，名词性从句作主语的用法是常见且重要的一种。
本文将介绍名词性从句作主语的用法，并举例说明其在实际语境中的运用。
名词性从句作主语可以用来引导句子，起到起到句子总控制和主要论述的作用。
它可以由疑问词引导，如what, where, when, why, how等，也可以由连接代词that引导。
下面将详细介绍名词性从句作主语的几种用法。
1. 名词性从句作主语表达事实或真理名词性从句作主语可以用来表达事实、真理或普遍规律。
例如：- What he said is true.（他说的是真的。
）- It is well-known that exercise is good for health.（众所周知，锻炼有益于健康。
）2. 名词性从句作主语表示个人观点或主张名词性从句作主语可以表达个人的观点、看法或主张。
例如：- Whether we should legalize same-sex marriage is still a controversial issue.（我们是否应该合法化同性婚姻仍是一个有争议的问题。
）- It is my belief that everyone should be treated equally.（我相信每个人都应该受到平等对待。
）3. 名词性从句作主语引导疑问句名词性从句作主语有时用来引导疑问句，表达对某事物的疑问或探讨。
例如：- What he did remains a mystery.（他所做的仍然是个谜。
）- Why they left early is still unknown.（他们为什么提前离开仍然不得而知。
）4. 名词性从句作主语表示意愿或决心名词性从句作主语有时可以表示某人的意愿、愿望或决心。
例如：- My dream is that one day all children will have access to education.（我的梦想是有一天所有的孩子都能接受教育。
名词性从句用作主语、宾语和表语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、表语以及同位语。
因此，根据它在句中不同的语法功能，名词性从句分为主语从句、宾语从句、表语从句以及同位语从句。
引导名词性从句的连接词可以分为三类：①连接词：that, whether, if (不充当从句的任何成分)；②连接代词：what, whatever, who, whoever, whom, whose, which (在从句中担任主语，宾语或定语)；③连接副词：when, where, how, why (在从句中担任状语，表示时间、地点、方式或原因)。
Ⅰ. 名词性从句的分类：1.主语从句主语从句是在复合句中担任主语的句子；通常位于句末，句首则采用it 作形式主语。
注意，what 引导的主语从句一般不用it 作形式主语。
1）常以it 作形式主语的句型有：①It is + 形容词+ that…It is certain that she will do well in her exam. 毫无疑问她考试成绩会很好。
②It is + 名词词组（no wonder, an honor, a good thing, a pity, no surprise, commonknowledge, a surprise, a fact, etc.）+ that…It is a pity that we can’t go. 很遗憾我们不能去。
③It is + 过去分词（said, reported, thought, expected, decided, announced, arranged, etc.）+ that…It has been suggested that much should be done to prevent the river from being polluted.有人建议应做更多的工作阻止河流遭受污染。
名词性从句的语法解析名词性从句是指在句中充当名词的成分的从句，可以作主语、宾语、表语、同位语等。
名词性从句的引导词有“从属连词”和“连接代词”两种。
一、主语从句主语从句在句中充当主语，常引导主语从句的连接词有“that”和“whether/if”。
其中，“that”在口语中常省略，而“whether/if”则一般用于句中有“or not”时。
例如：1. That he passed the exam is good news.（非正式：He passed the exam is good news.）2. Whether he will come to the party is still uncertain.（非正式：If he will come to the party is still uncertain.）二、宾语从句宾语从句在句中充当宾语，常引导宾语从句的连接词有“that”、“whether/if”、“what”和“who/whom”。
其中，“that”在口语中常省略。
例如：1. She said that she would go shopping later.（非正式：She said she would go shopping later.）2. I don't know whether/if he is coming to the party.（非正式：I don't know if he is coming to the party.）3. She asked me what I wanted for dinner.4. He asked who/whom I was talking to on the phone.三、表语从句表语从句在句中充当表语，常引导表语从句的连接词有“that”、“whether/if”和“what”。
例如：1. The important thing is that we are safe.（非正式：The important thing is we are safe.）2. The question is whether/if he will pass the exam.3. The problem is what we should do next.四、同位语从句同位语从句通常用来进一步解释说明某个名词或代词指代的内容，引导同位语从句的连接词有“that”、“whether/if”、“what”、“who/whom”等。
名词性从句的用法名词性从句是从句的一种形式，可以在句中担任名词的角色。
在句子中，名词性从句可以充当主语、宾语、表语或补语。
掌握名词性从句的用法，对于提高文章的表达和理解能力非常重要。
本文将详细介绍名词性从句的不同用法及其相关例子。
一、名词性从句作主语1. 名词性从句作主语可以起到引出全文主题的作用。
例子:- What she said is absolutely right.（她说的是完全正确的。
）- Whether we should go camping this weekend remains undecided. （我们是否应该在这个周末去野营还没有决定。
）2. 名词性从句作主语可以代替一个复杂的句子。
例子:- How he managed to finish the project on time is still a mystery.（他如何在时间之内完成这个项目仍然是个谜。
）- What you do in your spare time is your own business.（你在业余时间做什么是你自己的事情。
）二、名词性从句作宾语1. 名词性从句作及物动词的宾语，说明动作的对象。
- I believe that love can change the world.（我相信爱可以改变世界。
）- She doesn't know where she left her keys.（她不知道她把钥匙放在哪里了。
）2. 名词性从句作介词的宾语，说明介词所表示的关系。
例子:- The teacher is proud of what his students have achieved.（老师为他的学生所取得的成绩感到骄傲。
）- I'm interested in how they managed to win the competition.（我对他们是如何赢得这个比赛感兴趣。
名词性从句的引导词与用法名词性从句是指在句子中承担名词功能的从句，可以作主语、宾语、表语、同位语等，起着连接主句与从句的桥梁作用。
在构建名词性从句时，引导词的选择十分重要，不同的引导词会带来不同的语法功能和意义。
本文将介绍常见的名词性从句引导词及其用法。
一、连词“that”1. 引导主语从句：- That she arrived late yesterday is a known fact. (主语从句作主语)- It is known that she arrived late yesterday. (主语从句作it的补语)2. 引导表语从句：- The truth is that I failed the exam. (表语从句作表语)3. 引导宾语从句：- I believe that he is telling the truth. (宾语从句作宾语)4. 引导同位语从句：- The fact that she lied shocked everyone. (同位语从句作同位语)二、连词“whether/if”1. 引导宾语从句：- I don't know whether/if he will come. (宾语从句作宾语)2. 引导主语从句：- Whether/If she will attend the meeting is uncertain. (主语从句作主语)3. 引导表语从句：- The question is whether/if we should reschedule the meeting. (表语从句作表语)三、特殊疑问词引导的名词性从句1. 引导宾语从句：- I asked him what he wanted for dinner. (宾语从句作宾语)2. 引导主语从句：- What he said is true. (主语从句作主语)3. 引导表语从句：- The problem is how we can solve it. (表语从句作表语)4. 引导同位语从句：- The question of whether they will attend remains unanswered. (同位语从句作同位语)四、连词“that”与特殊疑问词“whether/if”的区别1. 当宾语从句是陈述句时，可以使用“that”或“whether/if”引导，两者可互换：- I know that/whether/if he is busy. (宾语从句作宾语)2. 当宾语从句是疑问句时，只能使用“whether/if”引导：- I don't know whether/if he is busy or not. (宾语从句作宾语)五、连词“who/whom/whose/which/that”引导的名词性从句1. 引导宾语从句：- I saw a man who/whom/that can play the piano very well. (宾语从句作宾语)2. 引导主语从句：- Who/That stole my wallet remains a mystery. (主语从句作主语)3. 引导表语从句：- The winner can be anyone who/that deserves it. (表语从句作表语)4. 引导同位语从句：- This is the book whose author won the Nobel Prize. (同位语从句作同位语)总结：名词性从句可以由连词“that/whether/if”以及特殊疑问词“who/whom/whose/which/what”引导，不同的引导词决定了从句在句子中的语法功能和意义。
语法中的名词性从句的引导词和用法总结引言语法中的名词性从句是句子中扮演名词角色的从句，在英语中起到非常重要的作用。
名词性从句的引导词多种多样，每个引导词都有其独特的用法和语境。
本文将对名词性从句的引导词和用法进行总结和归纳，帮助读者更好地理解和运用。
一、引导名词性从句的主要词语1. that2. whether/if3. wh-疑问词（what, when, where, who, which, why, how等）4. 连接副词（where, when, why等）二、that引导的名词性从句1. 作主语例句：That she is successful makes me happy.2. 作宾语例句：I believe that he is telling the truth.3. 作表语/同位语例句：The fact that he won the competition surprised everyone.三、whether/if引导的名词性从句1. 作主语例句：Whether the weather will be fine tomorrow is still uncertain.2. 作宾语例句：She hasn't decided whether she will go to the party or not. 3. 作表语例句：The question is whether we should support this project.四、wh-疑问词引导的名词性从句1. whata) 作主语例句：What he said is worth considering.b) 作宾语例句：I don't know what she wants.c) 作表语例句：His suggestion is what I agree with.2. whena) 作主语例句：When we will meet again is still uncertain.例句：I can't remember exactly when she arrived.c) 作表语例句：The important thing is when we can finish this project.3. wherea) 作主语例句：Where we will go for the summer vacation hasn't been decided yet.b) 作宾语例句：She can't remember where she left her keys.c) 作表语例句：The key to success lies in where you choose to invest your time and efforts.4. whoa) 作主语例句：Who will win the game is still unknown.b) 作宾语例句：I don't know who she is talking to.例句：The question is who should be responsible for this problem.5. whicha) 作主语例句：Which one of the books is worth reading?b) 作宾语例句：I can't decide which dress I should wear to the party.c) 作表语例句：The difficulty lies in which method we should choose.6. whya) 作主语例句：Why he did that remains a mystery.b) 作宾语例句：I don't understand why he refused the offer.c) 作表语例句：The reason why she quit her job is still unclear.7. howa) 作主语例句：How we will solve this problem is yet to be determined.b) 作宾语例句：I'm not sure how she managed to finish the task so quickly.c) 作表语例句：The key to success lies in how you adapt to changes.五、连接副词引导的名词性从句1. wherea) 作主语例句：Where we will go for dinner tonight is still undecided.b) 作宾语例句：I can't remember where she placed the documents.c) 作表语例句：The question is where we can find the best coffee in town.2. whena) 作主语例句：When we will have a meeting depends on everyone's availability.b) 作宾语例句：I can't remember when we last met.c) 作表语例句：The important thing is when we can start the project.结论通过对名词性从句的引导词和用法进行总结，我们可以清楚地了解不同引导词在不同句子中的作用和意义。
高中语法解析名词性从句的语序名词性从句是一个句子中充当名词成分的从句。
它可以作主语、宾语、表语和同位语等，而名词性从句的语序则根据其在句中的功能和句子的语序规则有所不同。
下面将对名词性从句的语序进行详细解析。
1. 名词性从句作主语：名词性从句作主语时，其语序通常为陈述语序，即主语在前，谓语在后。
例如：What she said made me happy.（她所说的让我很开心。
）2. 名词性从句作宾语：名词性从句作宾语时，其语序与陈述句的语序相同，即主语在前，谓语在后。
例如：I know what he wants.（我知道他想要什么。
）3. 名词性从句作表语：名词性从句作表语时，其语序与陈述句的语序一致，即主语在前，谓语在后。
例如：Her biggest wish is that she can travel around the world.（她最大的愿望是能够环游世界。
）4. 名词性从句作同位语：名词性从句作同位语时，其语序与陈述句的语序相同，即主语在前，谓语在后。
例如：The fact that he failed the exam surprised everyone.（他考试失败的事实让每个人都感到惊讶。
）需要注意的是，由于名词性从句在句中充当名词成分，因此在句子结构中往往会与其他成分相互关联，形成复杂的句子结构。
在处理这种复杂的句子结构时，我们需要注意句子的整体结构和语序的逻辑性。
总之，名词性从句的语序主要取决于其在句子中的功能，通常遵循陈述句的语序规则。
通过掌握名词性从句的语序，我们能够更好地理解和运用名词性从句，从而提高我们的语法水平。
名词性从句作主语、宾语、表语考点点击考点一：主语从句用it作形式主语有时主语从句太长，为了避免头重脚轻，保持句子平衡。
常用it作形式主语，主语从句放在句末；这时要分析从句的具体语境和结构来选择恰当的引导词。
1. （2011 江苏高考）It was never clear _______ the man hadn’t reported the accident sooner.A. thatB. howC. whenD. why考查名词性从句。
句子的意思：那位男士为什么没有及时举报事故尚不清楚。
分析句子成分可知，此处是一个主语从句，再结合句子的意思可知应用why引导。
2. (2011 重庆高考)It is still under discussion _______ the old bus station should be replaced with a modern hotel or not.A. whetherB. whenC. whichD. where考查主语从句的引导词。
句子的意思：这个旧汽车站是否应该被一个现代化的旅馆取代还在讨论之中。
本句中的it用形式主语，真正的主语是长句“whether the old bus station should be replaced with a modern hotel or not. Whether在句子中引导主语从句。
3. (2011 湖南高考)Before a problem can be solved, it must be obvious ________ the problem itself is.A. whatB. thatC. whichD. why考查名词性从句。
主语从句缺少表语，所以用what.句子的意思是：在解决问题之前，一定要弄清楚问题是什么。
注意：主语从句用it作形式主语有时主语从句太长，为了避免头重脚轻，保持句子平衡。
常用it作形式主语，主语从句放在句末It is true that he has made a very important discovery in chemistry.考点二：what引导主语从句。
连接代词what可引导主语从句，它在从句中充当主语、宾语等成分。
4. （2011 北京高考）_________ Barbara Jones offers to her fans is honesty and happiness.A. WhichB. WhatC. ThatD. Whom考查名词性从句。
由句子中的is可知空格处为主语从句的引导词，且该引导词在从句中作offer的宾语。
所以可以排除C项。
which是“哪一个”，whom“谁”。
故只有B项正确。
5. （2010 北京高考）______ some people regard as a drawback is seen as a plus by many others.A. WhetherB. WhatC. ThatD. How考查名词性从句。
句子的意思：被一些人所认为是不利/足的（东西），被其他一些人认为是有利益的。
Drawback不利；缺点；plus附加的优点。
What引导主语从句，又在从句中充当宾语。
6. （2011 上海）_______ comes will be welcomed to the open-air concert.A. WhateverB. WhoeverC. No matter whatD. No matter who无论谁“whoever”whoever/wherever/whichever/whomever/whatever等可引导名词性从句。
意思是“无论……”Whoever tells the truth will be respected.No matter who/ Whoever asks you to give your personal information, don’t believe it.考点三：what 引导宾语从句。
what 引导宾语从句时候，它在宾语从句中充当主语或宾语。
7. （2011 安徽高考）His writing is so confusing that it is difficult to make out ________ he is trying to express.A. thatB. howC. whoD. what考查句子结构。
句子的意思：他的书写如此令人困惑，以至于难以辨认他在试图表达什么。
分析句子结构可以知道，宾语从句he is trying to express缺少宾语，因此用what.8. (2010 天津高考)As a new graduate, he doesn’t know ________ it takes to start a business here.A. howB. whatC. whenD. which考查连接词的用法。
分析宾语从句的结构可以知道，从句中缺少宾语，应用连接代词，可排除A、C两项；由于没有限定范围，应用what引导的宾语从句。
故选B项。
which是指“哪一个，哪些”，用于有限定范围的情况。
9. Our teachers always tell us to believe in _____ we do and who we are if we want to succeed.A. whyB. howC. whatD. which宾语从句缺少宾语可知选what10. It is not always easy for the public to see ______ use a new invention can be of to human life.A. whoseB. whatC. whichD. thatWhat use作be of 的宾语。
11. We have offered her the job, but I don’t know ______ she will accept it.A. whereB. whatC. whetherD. whichWhether引导宾语从句表示“是否”的意思。
注意：1)宾语从句可以作：动词的宾语Do you know who will take over the company after Mr. Smith retires?介词的宾语Every day he goes to the library by bike except when it rains.形容词后作宾语He was afraid that the other kid would laugh at him.2) 宾语从句后有宾补时，需要用it作形式宾语，而将宾语从句后置。
The man has made it clear that he will never change his mind.3) 出现了or not/不定式,只能用whetherTell me whether or not you are interested.We are still discussing whether to stay or leave.考点四：连接代词和连接副词引导表语从句。
连接代词what/which/who/whom/whose引导表语从句时，其在从句中可充当主语、宾语、表语。
定语；连接副词when/where/how/why引导表语从句时，其在从句中冲当时间、地点、方式或原因状语。
11. （2011 山东高考）I am afraid he is more of a talker than a doer, which is ______ he never finishes anything.A. thatB. whenC. whereD. why考查表语从句。
很显然，前文所说的（他是一个空谈家而不是一个实干家）是下文（他一事无成）的原因，由此可知应该选why.12. (2011 陕西高考)I’d like to start my own bu siness——that is ______ I’d do if had the money.A. whyB. whenC. whichD. what考查表语从句。
句子的意思：那是如果我有钱就会做的事情。
从句中的do是及物动词，缺少宾语。
所以A、B都排除。
这两个选项在从句中常常作状语。
Which引导宾语从句是指“哪一个，哪些”，用于有限定范围的情况。
13. Part of the reason Charles Dickens loved his own novel, David Copperfield, was ______ it was rather closely modeled on his own life.A. whatB. thatC. whyD. whetherThat引导表语从句。
不在从句中作任何成分。
只起连接作用，没有含义。
注意：除系动词外，look/remain/seem/appear/sound/feel等后也可接宾语从句。
It seemed that he knew nothing about our plan.用whether/if/whoever/that/why/what填空。
1. _______ Caroline will come or not is still uncertain.2. Michelle doesn’t care ___________ it rains.3. ________ comes to the party will receive a present.4. It doesn’t matter _________ or not Lydia will come.5. The reason why Alan was late was __________ he missed the early bus.6. We think it necessary ________ we should practice spoken English every day.7. _________ we can’t get seems better than what we have.8. _______ Simon has lost his job is not true.9. The club will give ________ wins the competition a prize.10. Clark is not sure _________ Sharon refused his invitation.完成句子：1. ___________________(有可能), in many schools, the students are going to spend less time in doing homework than they used to. (likely)2. He does need to take responsibility and apologize for ______________________________(他所做的事情). (do)3. ____________________________________________(任何计划好了的事情) is sure to change as one puts it into practice. (whatever)4. Mr. Johnson insisted that the problem worthy of attention _______________________(讨论) at the meeting. (discuss)5. ___________________________(要求) that students in this school should wear their uniform on weekdays. (make)6. He ____________________________(清楚地表明) at the meeting that he wouldn’t agree to the plan. (make)7. They are reliable. You may _______________________________(放心) that they will be there in time. (depend)8. Six weeks is ________________________(所需要的时间) to learn how to better manage you household finances. (what)9. It troubles me so much _______________________________(我不能够) to pass the driving test up to now. (able)10. ___________________________________________(令球迷欣喜的) was that the young player performed extremely well in the table tennis tournament.11. He told us he has just finished his homework and ______________________________(他正要) to go to bed when the telephone rang. (about)12. __________________________(我没想到) that Tom should be elected as chairman of the association. (occur)13. I find it unbelievable __________________________(他当选) President of Wuhan University last month. (elect)14. _________________________(已经得到证实) recently that the man has been involved in the case and is being questioned. (confirm)15. _________________________________________(令我惊讶的) was that they had trouble distinguishing me from my brother. (surprise)16. he had hoped to get the product at a lower price. That was _________________________(他上当的缘故). (take)17. For many years I have been curious about _______________________________(他们会是什么样子) when the aliens from the Mars appear in front of us. (what)18. _________________________ that such a naughty boy should become a minister later. (occur)我从来没想过一个如此调皮的男孩子后来竟然成为一名牧师。
