Noun Clauses
名词性从句(Noun Clauses)
名词性从句(Noun Clauses）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。
一、引导名词性从句的连接词分类引导名词性从句的连接词可分为三类：连词（5个）：that（宾语从句或表语从句中that有时可以省略）whether,if（均表示“是否”表明从句内容的不确定性）as if ,as though（均表示“好像”，“似乎”）以上在从句中均不充当任何成分连接代词（9个）：what, whatever, who, whoever, whom, whomever, whose, which, whichever连接副词（7个）：when, where, how, why, whenever, wherever, however 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，只可用whether：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"5. 引导同位语从句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.二. 主语从句作句子主语的从句叫主语从句。
英语从句知识点总结
英语从句知识点总结英语从句是指在一个句子中包含有其他从句的句子结构。
英语从句有很多种类型，包括名词性从句、定语从句和状语从句等。
以下是对这些英语从句的知识点总结：1. 名词性从句 (Noun Clauses)：名词性从句可以在句子中充当名词的角色，可以作主语、宾语、表语、同位语等。
常见的名词性从句的引导词有：that, whether, if, who, whom, which, what, whose, when, where, why等。
2. 定语从句 (Adjective Clauses)：定语从句用来修饰一个名词或代词，从而起到修饰的作用。
常见的定语从句的引导词有：that, which, who, whom, whose, when, where, why等。
3. 状语从句 (Adverbial Clauses)：状语从句用来修饰一个动词、形容词或副词，并对句子中的时间、地点、原因、结果、条件等进行说明。
常见的状语从句的引导词有：when, before, after, while, since, until, because, as, if, unless, although, though, whether等。
4. 引导从句的连接词：引导从句的连接词根据从句的类型而有所不同。
常见的引导从句的连接词有：that, whether, if, who, whom, which, what, whose, when, where, why, how等。
5. 从句的位置：从句可以出现在主句前面、中间或后面，具体的位置取决于从句的类型和句子的结构。
6. 省略从句的连接词：在某些情况下，从句的连接词可以省略，只保留从句的其他成分，例如主语、谓语等。
7. 从句的语序：从句的语序与主句的语序有所不同。
在陈述语序中，从句的语序和主句的语序一致；而在疑问语序中，从句的语序要倒装。
以上是英语从句的一些基本知识点总结。
noun clauses
What I want to say is that we must start now. I don’t know whether he will come here. I told her the truth that he had gone abroad.
主语从句--主语从句--在句中做主语的句子， 在句中做主语的句子，处于从属 的位置， 的位置，这样的句子叫主语从句
The idea that he gave surprises many people． ． The idea that computers can recognize human voices surprises many people.
The news that Tom would go abroad is told by him. The news that he told me is that Tom would go abroad next year.
同位语从句--同位语从句
常跟在抽象名词后，说明其内容： 常跟在抽象名词后，说明其内容： idea news fact promise answer belief condition doubt fear hope problem proof question reply report suggestion thought truth
名词性从句--名词性从句--在句子中起名词作用的句子叫 名词从句 (Noun Clauses）。 名词 ）。 从句的功能相当于名词词组, 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、 复合句中能担任主语、宾语、表语、 同位语、介词宾语等， 同位语、介词宾语等，因此根据它 在句中不同的语法功能， 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、 又可分别称为主语从句、宾语从句、 表语从句和同位语从句。 表语从句和同位语从句。
高三一轮复习名词性从句
宾语从句
1.They know _th_a_t__ the habit will kill
them.
2.I don’t know _w_h_a_t ___ they are
talking about.
3.It all depends on __w_h_e_th_e_r they
1. I don’t think __(_th_a_t_)_ she is coming. 2. It is a pity __t_h_a_t__ he has made such a mistake. 3. The reason is ___th_a_t__ he is careless. 4. The news __t_h_a_t__ our team won the match inspired us. 5. I don’t think it necessary _t_h_a_t_ you should read English aloud. 6. He told me _(_th_a_t_)_ his father had died and _t_h_a_t_ he had to make a living alone.
1. I have no idea _w__h_e_re__ he comes from. 2. He can’t answer the question _h_o_w__ he got the money. 3. He gave us many suggestions __th_a_t___ we should get up earlier and take more exercise. 4. I have no doubt __th_a_t__ he will win. 5. I have some doubt _w_h__et_h_e_r_ he will win.
noun clauses
None Clauses在句子中起名词作用的句子叫名词从句(Noun Clauses）。
名词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，名词从句又可分引导名词性从句的连接词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一主语从句Subject clause主语从句在句中作主语，它的位置与陈述句基本结构中的主语相同，引导主语从句的词有：1）连词that (无词义)，whether (是否)例如：Whether the 11th sports meeting will be held in our city has not been decided. Tips:已经确定的事情that引导，没有确定的whether引导2）连接代词：what; who; which; whose;whoever; whatever; whicheverE.g. What he is has nothing to do with you 谁去参加这次能源大会并不重要Who will go to the energy conference is not importantWhatever she wants is fine with me3）连接副词when, where, wherever, why, how, 以及与how 组成的短语how long,how often, how soon, how far, howmany, how much等How we can protect the grain from damp needs to be discussed.他去哪都与我无关Wherever he goes has nothing to do with me.Attention:1)很多主语从句都可以用在it作形式主语的句子中It is not important who will go.It is still unknown which team will win the match.用it作形式主语的that-从句有以下四种不同的搭It is necessary that…有必要……It is important that…重要的是……It is obvious that…很明显……b. It + be + -ed 分词+ that-从句It is believed that…人们相信……It is known to all that…众所周知……It has been decided that…已决定……c. It + be +名词+ that-从句It is common knowledge that………是常识It is a surprise that…令人惊奇的是……It is a fact that…事实是……d. It +不及物动词+ that-分句It appears t hat…似乎……It happens that…碰巧……It occurred to me that…我突然想起……2)连接代词和连接副词引导的主语从句是由特殊疑问句转化而来的，要用陈述语序E.g. What the weather will be like for the next three days is of great importance. How much we can spend must be agreed on.whether 引导主语从句时，不能用if 替换宾语从句的位置与陈述句基本结构中的宾语相同，宾语从句可以作为谓语动词的宾语，也可作为介词和非限定动词（动词不定式，动名词，分词）和某些形容词的宾语。
Unit 3 Noun Clauses名词性从句
Noun Clauses名词性从句在句中起名词作用的从句称为名词性从句。
名词性从句可以像名词一样在句中主语、宾语、表语、介词宾语或同位语等。
1.由that引导的名词性从句：That she doesn’t understand spoken English is obvious.I think (that) he is a good actor.The truth is that he is only eighteen.The fact that Ann was late didn’t surprise me.I’ve found it important that a new regulation be set up to ban it.注意：That引导名词性从句时，在句中不作任何语法成分，只起连接作用。
That从句除个别情况外，一般不能作介词的宾语。
如：1)误: Are you sure of that he will not come.正: Are you sure that he won’t come.2）That引导主语从句时，通常采取It is..... that-clause结构。
如：It is obvious that she doesn’t understand spoken English.2.由wh-words引导的名词性从句：What he was talking about was interesting.Why they left the country is a secret.Where she went is none of your business.Whoever wants to come is welcome,There is something in what he said.He always says whatever comes into his mind,They can watch whichever program they prefer.I don’t know who is coming to the party.Let’s ask him which one he wants.Could you tell me how old she is.How this happened is not clear to anyone.I don’t know how many English words he has learned these two years.注意：Wh-words引导名词性从句时，在句中担任语法成分，而且常保留其本身的含义，因此翻译时一般要译出来。
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。
假设去掉则没有了主语，而宾语从句的that可省。
主语从句：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。
什么是名词性从句
什么是名词性从句？名词性从句（Noun Clauses）是一个在句子中充当名词的从句。
它可以在句子中担任主语、宾语、表语或补语的角色。
名词性从句通常由连词引导，例如that, whether, if, who, whom, whose, what, which, when, where, why等。
以下是名词性从句在不同角色中的示例：1. 主语（Subject）：- What she said surprised me.（她所说的让我感到惊讶。
）- Whether we go or not is up to you.（我们去与否由你决定。
）2. 宾语（Object）：- I know that he is coming.（我知道他要来。
）- She asked me where I was going.（她问我要去哪里。
）3. 表语（Predicate）：- The problem is how to solve it.（问题是如何解决它。
）- His wish is that everyone gets along.（他的愿望是每个人和睦相处。
）4. 补语（Complement）：- The important thing is what you do next.（重要的是你接下来要做什么。
）- His goal is to become a doctor.（他的目标是成为一名医生。
）名词性从句的使用可以使句子更加丰富和灵活，它可以替代一个独立的名词，并在句子中承担相应的语法角色。
名词性从句可以用于各种不同的语境，包括陈述句、疑问句和感叹句等。
需要注意的是，名词性从句的引导词可以根据从句的具体内容和功能而有所不同。
因此，在使用名词性从句时，我们需要根据语境和句子的需要选择适当的引导词。
了解和掌握名词性从句的概念和用法，可以帮助我们在英语表达中更加灵活和准确地使用不同类型的从句。