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高中英语从句总结1) 主语从句1. 定义：用作主语的从句叫做主语从句。
2. 构成：关联词+简单句3. 引导主语从句的关联词有三类：(1)从属连词that.如：That they were in truth sisters was clear from the facial resemblanee between them.很明显，她们确是亲姐妹，她们的脸型很相似。
(2)从属连词whether如:Whether he' II come here isn' t clear.他是否会来这里还不清楚。
(3)连接代词who，whom，whose，what，which，whoever，whatever，whichever连接副词where，when，how，why. 如：What she did is n ot yet known她干了什么尚不清楚。
How this happe ned is not clear to an yo n这事怎样发生的，谁也不清楚。
Whoever comes is welcome不论谁来都欢迎。
Wherever you are is my home ----- my only home.你所在的任何地方就是我的家----我唯一的家。
解释：1•主语从句能用it作形式上的主语。
常以it作形式主语的句型有：A. lt+be+ 形容词(obvious，true，natural, surprising, good, wonderful，funny，possible，likely，certain, probable, etc.) +that 从句。
如：It is certai n that she will do well in her exa m 毫无疑问她考试成绩会很好。
It is probable that he told her everythi ng很可能他把一切都告诉她了。
主语从句（一）主语从句的标记主语从句通常由连词that和whether (if)、连接代词或连接副词以及关系代词型what引导。
1. that引导That he is still alive is a wonder. 他还活着，真是奇迹。
That we shall be late is certain. 我们要晚了，这是确定无疑的。
That he should have ignored the working class was natural. 他忽视工人阶级是很自然的。
That she is still alive is a consolation. 她还活着是使人感到宽慰的。
That she became an artist may have been due to her father’s influence. 她成为画家可能是受她父亲的影响。
That you are coming to London is the best news I have heard this long time. 你将来伦敦是好久以来我听到的最好消息。
That she was chosen made a tremendous stir in her village. 她被挑选上，在她村子里引起很大轰动。
2. whether引导Whether it will do us harm remains to be seen. 是否对我们有害还要看一看。
Whether they would support us was a problem. 他们是否会支持我们还是一个问题。
3. 连接代词引导Whoever (=anyone who) fails to see this will make a big blunder. Whatever(=anything that) she did was reasonable. 无论什么Anything that she did was reasonable.Whichever (of you) comes in first will receive a prize. 无论(你们)谁先到都可以得奖。
高中英语从句总结1）主语从句1.定义：用作主语的从句叫做主语从句。
2.组成：关系词 +简单句3.指引主语从句的关系词有三类：（1）附属连词 that. 如： That they were in truth sisters was clear from the facial resemblance between them.很显然，她们确是亲姐妹，她们的脸型很相像。
（2）附属连词 whether. 如：Whether he’ ll come here isn’t clear.他能否会来这里还不清楚。
（3）连结代词 who，whom ，whose，what ，which ，whoever，whatever ，whichever连结副词 where， when，how，why.如：What she did is not yet known.她干了什么尚不清楚。
How this happened is not clear to anyone这.事如何发生的，谁也不清楚。
Whoever comes is welcome不.论谁来都欢迎。
Wherever you are is my home —— my only home.你所在的任何地方就是我的家——我独一的家。
解说：1.主语从句能用 it 作形式上的主语。
常以it 作形式主语的句型有：A.It+be+形容词（obvious，true ，natural，surprising，good，wonderful ，funny ，possible，likely，certain，probable， etc.） +that 从句。
如：It is certain that she will do well in her exam.毫无疑问她考试成绩会很好。
It is probable that he told her everything. 很可能他把全部都告诉她了。
B.It+be+名词词组（ no wonder ，an honor，a good thing，a pity，no surprise， etc.）+that 从句。
主语从句一、概述：在句子中起名词作用的各种从句统称为名词性从句。
根据它们在句中的语法作用，这类从句又可分为主语从句、同位语从句、表语从句和宾语从句。
二.主语从句主要有四类：（1）由连词that引导的主语从句:引导词that无含义/在句中不做成分/不可以省。
例如：That you will win the medal seems unlikely.That you are so indifferent bothers me.That she survived the accident is a miracle.（2）用连词whether 引导的主语从句: whether有含义(是否)/在句中不做成分/不可以省。
注意：引导主语从句，不能用if，只能用whether。
例如：Whether we will hold a party in the open air tomorrow depends on the weather.Whether she is coming or not doesn’t matter too much.（3）用连接代词引导的主语从句在由连接代词who, whose, whom, which, what, whoever, whomever, whichever, whatever引导的名词性从句中，其连接代词在句中起名词性作用，担当一定成分.例如：What you need is more practice.What I want to know is this.Whatever we do is to serve the people.注：whatever / whoever的功用whatever, whoever在主语从句中不含疑问意义。
它引导主语从句，并在从句中作主语、宾语、表语等。
whatever = anything that; whoever = anyone who。
高中英语知识点归纳从句的分类与用法从句是英语中十分重要的语法结构之一。
它可以在句子中充当名词、形容词或副词的作用。
了解从句的分类和用法对于理解和运用英语非常有帮助。
本文将对高中英语中的从句分类和用法进行归纳总结。
一、名词性从句名词性从句可以在句子中作主语、宾语、表语或同位语等，常见的名词性从句有以下几种：1. 主语从句主语从句在句子中作主语，常以连接词that或whether引导。
例如：- That he has passed the exam is good news.- Whether she will come to the party is still uncertain.2. 宾语从句宾语从句在句子中作宾语，常以连接词that或wh-引导。
例如：- She said that she would be there on time.- I don't know what his name is.3. 表语从句表语从句在句子中作表语，常以连接词that或wh-引导。
例如：- My biggest hope is that we can achieve success together.- The question is whether she will accept the job offer.同位语从句用来对某个名词或代词进行解释或说明，常以连接词that引导。
例如：- The fact that he broke his promise disappointed me.- Her announcement that she was going to retire surprised everyone.二、形容词从句形容词从句用来修饰名词或代词，常以连接词that, which, who, whom, whose, when, where, why等引导。
例如：- The book that I borrowed from the library is very interesting.- I know a girl whose father is a famous actor.三、副词从句副词从句用来修饰动词、形容词或副词，常以连接词that, if, whether, because, although, when, where, how等引导。
高中英语语法总结句式归纳高中阶段是学习英语语法的重要时期，掌握各种语法句式对于提高英语写作和口语表达能力至关重要。
本文将总结和归纳高中英语常用的语法句式，以帮助同学们更好地掌握英语语法知识。
一、名词性从句名词性从句在句子中起着名词的作用，可以作主语、宾语、表语或补语。
常见的名词性从句有以下几种句式：1. 主语从句主语从句常用来引导主句的主语，一般用以下几个连接词引导：that, whether, if。
例如：- That he is a brilliant student is undeniable.（他是一个优秀的学生是不可否认的。
）- Whether she will come to the party is still uncertain.（她是否会来参加派对还不确定。
）2. 宾语从句宾语从句常用来作主句的宾语，一般用以下几个连接词引导：that, whether, if。
例如：- I don't know if she can finish the task in time.（我不知道她是否能按时完成任务。
）- He asked me whether I had seen the movie.（他问我是否看过那部电影。
）3. 表语从句表语从句常用来作主句的表语，一般用以下几个连接词引导：that, whether。
例如：- My biggest concern is that we won't have enough time.（我最担心的是我们没有足够的时间。
）- The question is whether they will come to the meeting.（问题是他们是否会来开会。
）4. 同位语从句同位语从句用来解释或说明名词的内容，常用连接词that。
例如：- The fact that he won the competition surprised everyone.（他赢得比赛的事实让大家都感到惊讶。
高中英语主语从句主语从句，在英语语法中，是一个句子作为主语，它可以是陈述句、疑问句或者是特殊疑问句。
这种从句在高考英语中占据了重要的地位，因此，理解和掌握主语从句的用法对于高中生来说至关重要。
我们要理解什么是主语从句。
主语从句就是一个句子在复合句中充当主语，例如：What he said is not true.在这个句子中，“What he said”就是一个主语从句。
主语从句有三种类型：陈述句、疑问句和特殊疑问句。
陈述句作为主语从句时，通常以that引导，例如：That he will come to the party is certain.疑问句作为主语从句时，通常以whether或what引导，例如：Whether he can come is still a question.特殊疑问句作为主语从句时，通常以who、what、which等引导，例如：Who will come is not clear.在理解了主语从句的基本概念和类型之后，我们还需要掌握如何正确使用主语从句。
使用主语从句时，需要注意以下几点：主语从句的引导词要使用正确；主语从句的时态要和主句保持一致；主语从句的语序要使用陈述句语序。
除了正确使用主语从句，我们还需要理解主语从句的省略情况。
在某些情况下，主语从句可以省略掉that，例如：It is certn (that) he will come.这种情况下，it是形式主语，真正的主语是that he will come。
高中英语主语从句是一个重要的语法知识点，需要我们熟练掌握并正确运用。
只有通过不断的练习和学习，我们才能在高考中取得优异的成绩。
（2）主语从句一般用什么引导词？引导词在从句中担任什么成分？（3）主语从句的时态有什么特殊之处？请举例说明。
（4）主语从句与宾语从句、表语从句有什么异同点？通过预习题，我们对主语从句有了初步的了解。
接下来，我们将深入学习主语从句的构成、用法以及与其他从句的区别。
主语从句1）主语从句定义：在句子中担当主语的是一个从句，这个从句就叫做主语从句。
主语从句是在复合句中充当主语的从句，通常放在主句谓语动词之前或由形式主语it代替，而本身放在句子末尾。
主语从句主要有三类：（1）由连词that引导的主语从句:引导词that无含义,在句中不做成分,不可以省。
例如：That you will win the medal seems unlikely.你想获得奖牌看起来是不可能的。
That you are so indifferent bothers me.你如此冷淡使我很烦恼。
That she survived the accident is a miracle.她在事故中幸免于难简直是奇迹。
（2）用连词whether 引导的主语从句:whether有含义(是否),在句中不做成分,不可以省。
例如：Whether she is coming or not doesn’t matter too much.她来不来都无关紧要。
（3）用连接代词引导的主语从句(在由连接代词who, whose, whom, which, what, whoever, whomev er, whichever, whatever引导的名词性从句中，其连接代词在句中起名词性作用，担当一定成分).例如：What you need is more practice.你所需要的是更多的训练。
What I want to know is this. 我想知道的就是这事。
Whatever we do is to serve the people.我们无论做什么都是为人民服务。
（4）用连接副词when, where, why, how引导的名词性从句(其连接副词有含义,在句中作状语。
)eg:Where we should leave it is a problem.When they will come hasn’t been made pubic.他们什么时候来还不知道。
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 hi m is none of my business.你不喜欢她不管我的事。
What he said is true. 他说的是真的。
Do you remember how he arrived almost at the end of the party?你记得他几乎是在宴会快结束时才到的吗？This party's really where it's at, man! 啊，这个晚会真棒！Tell us how you fulfilled the heavy task ahead of schedule.告诉我们,你们是怎样提前完成这一艰巨任务的。
We have reason to believe that the fighting on the border may develop into a full-blown war. (喻)我们有理由相信边境上的冲突可能发展成一场全面战争。
He said that he would come. 他说他要来。
Whether the football game will be played depends on the weather.足球比赛是否举行将视天气而定。
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。
主语从句用法小结
请观察下列句子, 注意主语从句的特点。
1. That the earth travels round the sun is a well-known fact.
2. Whether the artist can do it or not is uncertain.
3. Who will act the lead in the play has not been decided yet.
4. Where the young man has gone is not known.
5. When and where the test will be given is not yet decided.
【归纳总结】主语从句必须有引导词；主语从句用陈述句语气。
1. 引导主语从句的词有：
连词: that, whether；
连接代词: who, whose, whom, whoever, what, which等；
连接副词where, when, whenever, wherever, how, why等。
主语从句引导词的选择：
1).连接词: that, whether
(1) That he will win is certain.
(2)It has been reported that sales of beef in China will increase.
(3) Whether we shall raise ducks or geese remains to be decided.
(4) Whether he ’ll join us in the discussion is of great importance.
2) 连接代词: who, whom, whose, what, which, whoever, whatever, whichever等。
(1)It is clear who is afraid of having a change in land ownership.
(2)Whose bag it is cannot be told.
(3) What India needs is a law to make land ownership fairer.
(4)It is not yet decided which cash crop will be produced next year.
(5)Whatever he said was right.
(6)Whoever go there must get ready by 6 o’clock.
3) 连接副词: when, where, why, how, how many, how much ,how long, how
soon,how often等。
(1)When we’ll start tomorrow will be told soon.
(2)Where we can buy oxen is something we need to find out.
(3) How/ When he came here is not known.
(4) Howwe can protect the grain needs to be discussed.
(5) How many people died from starvation that year will never be known.
(6) How often he’ll go to see his grandmother depends on the time he can spare.
归纳总结：
主语从句引导词的选择主要是根据从句的结构和意义来选择。
1.如果从句的意义和结构完整，则用that。
2.如果从句的意义和结构不完整，则根据从句的意义和结构选择相应的引导词。
比较that / what
1. What he wants is a book.
2. That he wants to go there is obvious.
3. What happened is not clear.
4. This is the best TV that is made in China. 定语从句
5. The first museum that he visited in China was the History Museum. 定语从句
that 和what 的选用：that 和 what 都可引导主语从句。但是，what除起连接
作用外，还在主语从句中充当成分，可做从句的主语、宾语、或表语。而that
在主语从句中不充当任何成分，只起连接作用。
翻译和分析下列句子：
1. It is well reported that a storm is coming.
2. It is true that the earth moves around the sun.
3. It is a pity that I missed the train.
4. It doesn’t matter whether he will come or not.
5. It seems that it is going to rain.
6. It happened that they didn’t know my address.
归纳：为了使句子保持平衡，常用it来代替主语从句，而把主语从句放到后面，
尤其是连词that引导的主语从句常用于此种句式中。
常用句型如下：
It+ be +名词+ that 从句
It+ be + 形容词+ that从句
It+ be + 动词的过去分词+ that从句
It+ be + 不及物动词+ that从句
1. It’s likely/possible/important/necessary/clear that…
很可能/重要的是… /必要的是……/很清楚…
2. It’s known/reported/ thought/said that… 据说/据报道…
3. It seems/appears/happens that… 显然、明显、碰巧.…
4. It’s been announced/declared that… 已经通知/宣布…
5. It’s no wonder that…并不奇怪/无疑…
6. It’s a pity/a fact /a common knowledge (众所周知） / a common saying（俗话说）
that…
主语从句常见错误：
下列各句均有一处错误，请改正并分析原因。
1. Light travels faster than sound is common knowledge.
改：在is后加that。that虽无词义但引导主语从句位于句首时不能省略。
2. If she’s coming or not doesn’t matter much.
改：将If变为Whether。if, whether都可表示“是否”, 但if不能引导位于主句之
前的主语从句，它可以引导位于主句之后带有形式主语it的主语从句。
3. That the professor said is of great importance.
改：将That改为What。that引导主语从句时无词义，只起一个连接的作用。What
the professor said表示“教授所说的”，said后面还需要一个宾语，就只能用what。
4. Where will the trees be planted has not been decided.
改：将will置于trees之后。主语从句要用陈述句语序。
5. No matter who breaks the rule will be punished.
改：将No matter who变为whoever。引导让步状语从句时二者可互换，但引导
名词性从句时只能用whoever。
6. When and where the meeting will be held still remain a question.
改：将remain变为remains。主语从句表示单一概念时，谓语要用单数形式。
