高中主语从句
【高中英语】高中英语知识点:主语从句

【高中英语】高中英语知识点:主语从句主语从句的概念:如果一个句子在复句中充当主语,那么这个句子就是主语从句。
主语从句通常由下列连词引导:which、if和连接代词what、who、who、who和how、when、where、why和其他副词。
在句子中没有词义,只起到连接作用。
主语从句用法:1.主语从句的引导词:主语从句通常由连词that和whether、连接代词或连接副词以及关系代词型what引导:他还活着真是个奇迹。
whenwearrivedoesn'tmatter.什么时候到没有关系。
什么是钱。
我们需要钱。
whatiwanttoknowisthis.我想知道的就是这一点。
他们是否支持是个问题。
他们是否会支持我们仍然是个问题。
2、主语从句与形式主语it:有时为了考虑句子的平衡,我们通常在主语从句中使用正式主语,把真正主语从句移到句子的末尾。
有三种情况:(1)对于以连词that引导的主语从句,通常用形式主语代主语从句:(2)对于连接代词(副词)引导的主语从句,可以用形式主语代替主语从句,也可以在句首直接使用主语从句:如:whethertheywouldsupportuswasaproblem.他们是否会支持我们还是一个问题。
他们是否支持我们是个问题。
他们是否会支持我们仍然是个问题。
(3)对关系代词型what引导的主语从句,通常不用形式主语,总是主语从句放在句首:我们需要的是钱。
whatiwanttoknowisthis.我想知道的就是这一点。
(4)如果句子是疑问句,则必须使用带有正式主语的结构:如:isittruethatheisthegirl'sfather?他是那女孩的父亲,是真的吗?你怎么又迟到了?你为什么又迟到了?3、连词that的省略问题:有时引导主语从句的连词可以省略,有时不能省略。
原则是:若that引导的主语从句直接位于句首,则that不能省略;如果受其引导的主语从句位于句末,而正式主语则用在句首,则可以省略:如:thatyoudidn'tgotothetalkwasapity.很遗憾你没去听报告。
高中英语知识点归纳主语从句与宾语从句

高中英语知识点归纳主语从句与宾语从句主语从句是指在复合句中作主语的从句,而宾语从句则是在复合句中充当宾语的从句。
它们是高中英语中比较重要的知识点,下面将对主语从句与宾语从句进行归纳。
1.主语从句(Subject Clauses)主语从句在句子中充当主语,常用连词有:that, whether, who, whom, whose, which等。
例子:- That he is a good student is known to all.(大家都知道他是一个好学生)- Whether he will come is uncertain.(他是否会来是不确定的)- Who will win the game remains unknown.(谁将会赢得比赛仍是未知的)在主语从句中,应注意以下几点:- 当主语从句要表达的是一种客观事实时,常用that作为引导词。
如:That he is a good student is known to all.- 当主语从句表达的是一种疑问或选择时,常用whether作为引导词。
如:Whether he will come is uncertain.用which做引导词。
如:Who will win the game remains unknown.- 在口语中,常常省略引导词that,直接使用主语从句作为主语。
如:It is important to learn English well.2.宾语从句(Object Clauses)宾语从句在复合句中充当宾语的角色,常用连词有:that, whether, if, what, who, whom, whose, which等。
例子:- She asked me where I was going.(她问我去哪儿)- He doesn't know if/whether he can pass the exam.(他不知道自己是否能通过考试)- Can you tell me what time it is now?(你能告诉我现在几点了吗)在宾语从句中,应注意以下几点:- 宾语从句通常放在及物动词和介词后面。
高中英语主语从句讲析课件可修改全文

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.
It’s likely/possible/important/necessary/clear that 很可能/重要的是…/必要的是…/很清楚… It+ be +名词+ that 从句 It’s no wonder that…并不奇怪/无疑
It’s a pity/a fact /a common knowledge (众所周知) / a common saying(俗话说)that It+ be + 不及物动词+ that从句 It seems/appears/happens that…显然、明显、碰巧
matter much.
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. TWhhaatt the professor said is of great importance.
that引导主语从句时无词义。What the professor said表示“教授所说的”。
6. It happened that they didn’t know my address.
请你归纳 ?
T——h—a—t —a—s—t—o—r—m——is——c—o—m—i—n—g
is well reported
2023年高中英语语法精讲,主语从句详细讲解

2023年高中英语语法精讲—主语从句详细讲解主语从句结构及用法在句子中担当主语的从句就叫做主语从句,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。
通常结构为“引导词 + 主语 + 谓语 + 其他成分"。
一. 概念:在句子中担当主语的从句就叫做主语从句,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。
主语从句使用陈述语序,其通常结构为“引导词 + 主语 + 谓语 + 其他成分", 但当连接代词同时充当从句主语时,其结构为“连接代词 + 谓语 + 其他成分”。
二. 引导词:1. that引导eg. That you are coming to London is the best news I have heard this long time.2. whether引导eg. Whether they would come to conference was a question.3. 连接代词引导: who,whom, whose, what, which, whoever, whomever, whichever, whatevereg. Whoever is top from wins the game when two matched players meet.4. 连接副词引导: therefore, besides, otherwise, however, moreover, still, thus, meanwhileeg. How this happended is not clear to anyone.5. 关系代词型what引导三. 形式主语it:1. 对关系代词型what引导的主语从句,可以使用形式主语。
eg. It is clear enough what he meant.2. 如果句子是疑问句,则必须用带形式主语it的结构.eg. Is it true that all of us need to to conference?如果一个句子在复合句中充当一个主语,那么这个句子就是主语从句。
高中英语主语从句

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。
高中语法指南主语从句的运用

高中语法指南主语从句的运用高中语法指南:主语从句的运用一、主语从句的定义和特点主语从句是指在一个句子中充当主语的从句,其作用类似于一个名词性的成分。
主语从句一般由连接代词或连接副词引导,例如:that, whether, who, what, when, where, why等。
主语从句的特点有以下几点:1. 位置灵活:主语从句可以出现在句首、句中或句尾的位置,根据需要可以进行调整;2. 句子要素:主语从句在句子中充当主语,具有名词性的特点,可以接受名词性的修饰;3. 引导词多样:主语从句的引导词有多种多样的选择,根据具体语境进行选择。
二、主语从句的引导词及使用场景1. that引导的主语从句:a. 用于陈述句或讲述事实的句子中,表达一般真理或客观事实;b. 用于名词性从句,可以替代某个名词作为主语;c. 例如:That she is talented is beyond doubt.(她很有天赋是毋庸置疑的。
)2. whether引导的主语从句:a. 用于表示两种可能性的选择时,引导主语从句表示“是否”;b. 通常与or not连用;c. 例如:Whether we can go camping depends on the weather.(我们是否能去露营取决于天气。
)3. who、whom引导的主语从句:a. 引导人称主语从句,通常用于陈述句、命令句、问句等;b. who用于作主语代词,whom用于作宾语代词;c. 例如:Who will be responsible for the project remains uncertain.(谁将对这个项目负责尚未确定。
)4. what引导的主语从句:a. 用于陈述句中,表示“某事是什么”或“某物是什么”的意思;b. 可以作为名词性从句的主语,引导的是一个不定名词性内容;c. 例如:What he said is hard to believe.(他所说的话难以置信。
高中主语从句用法归纳

高中主语从句用法归纳高中阶段的英语学习中,主语从句可是个让人又爱又恨的“小家伙”。
咱们今天就来好好归纳一下它的用法,让它变得乖乖听话!先来说说啥是主语从句。
简单来讲,就是在一个句子里,充当主语的是一个从句。
比如说,“What he said is true”在这个句子里,“What he said”就是主语从句,整个句子意思是“他说的是真的”。
主语从句的引导词那可是有不少,像 that、whether、who、what、which、when、where、why、how 等等。
咱一个个来瞧瞧。
先说that 引导的主语从句。
that 在从句中不作成分,没有实际意义,就只是起个引导作用。
比如“ That he will come is certain ”(他会来是肯定的)。
但要注意哦,that 引导的主语从句,经常会用 it 作形式主语,把真正的主语从句放在后面,像“ It is certain that he will come ”这样,是不是让句子看起来更舒服些?接着是 whether 引导的主语从句,whether 表示“是否”。
“Whetherwe will go for an out ing tomorrow remains unknown ”(我们明天是否去郊游还不知道呢)。
再来说说 who 引导的主语从句,who 指人,在从句中作主语。
像“Who will be our monitor hasn't been decided yet ”(谁将成为我们的班长还没决定)。
what 引导的主语从句呢,what 在从句中作主语、宾语或表语。
比如说“ What she lacks is experience ”(她缺少的是经验),这里 what 作宾语。
which 引导的主语从句,which 表示在一定范围内的“哪一个”。
“Which book is the best one is still a question ”(哪一本书是最好的还是个问题)when、where、why、how 引导的主语从句,分别表示时间、地点、原因、方式。
高中英语知识点归纳主语从句与宾语从句的引导词与结构

高中英语知识点归纳主语从句与宾语从句的引导词与结构高中英语知识点归纳:主语从句与宾语从句的引导词与结构主语从句(Subject Clauses)和宾语从句(Object Clauses)是英语语法中两个重要的从句类型。
它们在复杂句中充当主语或宾语成分,承担着关键的语义和句法功能。
本文将对主语从句和宾语从句的引导词与结构进行归纳总结。
一、主语从句的引导词与结构主语从句是复杂句中作主语的从句,它引导主语从句的常见词包括:引导词常常是连接代词,例如"what", "who", "which"等,有时也可以是连接副词,例如"when","where","how"等。
1. 引导主语从句的连接代词:a) "what"在主语从句中作主语时,代替前面整个主句的内容。
例如:What he said is true.(他说的是真的。
)b) "who"在主语从句中代表人。
例如:Who will go with us remains to be decided.(谁将和我们一起去还有待决定。
)c) "which"在主语从句中代表事物。
例如:Which team will win is uncertain.(哪一支队将获胜是不确定的。
)2. 引导主语从句的连接副词:a) "when"在主语从句中代表时间。
例如:When we can meet again is still unknown.(我们何时能够再次见面仍然未知。
)b) "where"在主语从句中代表地点。
例如:Where we will go for vacation hasn't been decided yet.(我们去哪里度假尚未决定。
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升高二英语名词性从句之主语从句姓名:年级:教师:刘琳学习过程一、主语从句的概念与类型主语从句在复合句中作主句的主语,引导主语从句的词有从属连词that, whether以及连接代词who, what, which, whoever, whatever, whichever和连接副词when, where, why, how等.一、从属连词:that, whether等.that 引导主语从句只起引导作用,本身无实际意义,在主语从句中不充当任何成分,但不能省略。
That he will win is certain.他肯定会赢。
Whether he’ll come here isn’t clear. 他是否会来这里还不清楚。
注意: 由that 引导的主语从句有时为了使句子结构平衡, 避免“头重脚轻”, 常用 it 作形式主语, 而把从句放在后面。
例如:1. That he will refuse this piece of advice is impossible.2.That they should like each other is natural.这样就构成了下面一些常用句型:1) It is + n. +从句It is a pity/shame that... 遗憾的是……It is a surprise that…令人惊奇的是…It is a fact that… …是事实It is common knowledge that… …是常识______________(很遗憾)we lost the match._____________(这是事实)he cheated in the exam.2) It is + adj. +从句It’s certain that… 肯定…It is possible that... 很可能……It is unlikely that... 不可能……It is obvious that… 很明显…It is necessary \important \natural\... that…+(should) do________________(很可能)she will come back tomorrow.*_________________(很明显)this measure is effective.3) It +不及物动词+从句It happened that... 碰巧……It occurred to me that…我突然想起…_______________(刚好)I came into the office at that time.*____________________(我突然想起)I forget to sent the letter.4) It + be +过去分词+从句It is said that... 据说……It is known to all that... 众所周知……It is reported that... 据报道……It is believed that..人们相信……It is suggested that + (should)do... 建议……It must be admitted that…必须承认……It cannot be denied that… 不可否认……It must be pointed out that…需指出的是……__________________(据报道)20 people were killed in the accident.*_______________(建议)we should eat more vegetable and do more exercise.二、.连接代词who ,what ,which, whatever, whichever, whoever(Who, whom, which, what可以和ever构成合成词,和what一样引导从句,ever起到强调作用。
它们在句子中担任主干成分,并用陈述句形式)What many scientists believe is that the earth is round …Who will take part in the meeting has not been decided.Whoever breaks the law will be punished.Whatever was said here must be kept secret.三、.连接副词when,where, how, why等。
Why they suddenly disappeared still remains a mystery.When they will leave is not decided.How we will paint the house has not been decided.注意:1)主语从句在句首时,必须由连接词引导,不能省略这些连接词误:They should like each other is natural.正:That they should like each other is natural2)whether引导主语从句,if不可误:If Mary really heard him is really doubtful.正: Whether Mary really heard him is really doubtful.Complete the sentences using what, whether, where, when, who, why, how or that.1.(_____ is needed for success) is your hard work.2.(______ they will arrive )has been told to the teacher.2.(_____ we wil l go tomorrow )hasn’t been decided yet.3.(______ can join in the sport meet) is decided by the teacher.4.(________ it will rain or not) is not clear.Conclusion:主语从句作主语时,谓语动词一般用单数形式。
四、主语从句的规律:找出下列句子中的错误,并总结规律例规律一、主语从句一律用陈述语序,即主语在前,谓语在后。
1.When will he come is not known..正:When he will come is not known.规律二、连词that 在从句中无实际意义,但不能省略。
例2. He will not come to the meeting this evening is true.正:That he will not come to the meeting this evening is true.规律三、whether 可以引导主语从句,放在句首,但if不能例3. If the meeting will be put off has not been decided yet.正: Whether the meeting will be put off has not been decided yet.规律四、主语从句中的连词不能重叠使用。
例4. That whether he will help others is a fact.正:That he will help others is a fact.规律五、含主语从句的主句谓语动词多用单数第三人称形式。
例5. When he will come are a puzzle.正:When he will come is a puzzle.规律六、what 引导的主语从句,可根据表语决定主句动词的单复数形式。
1. What he needs is that book.2. What he needs are some books.规律七、主语从句为了避免头重脚轻现象,用it 做形式主语,而把从句放在后面。
That the earth turns around the sun is known to all.It is known to all that the earth turns around the sun.找出错误,并给出理由:1.Where shall we spend the holiday isn’t decided.2.You have made a mistake is a fact.3. If the policeman will come is not certain.4. That is certain that we can win.5.It is ordered we should leave at once.6.Where he comes from are a mystery.7.What whether he likes the job is not clear.8.Who he is and where he is from is important.9.What he saw is the stars in the sky.1.___ he made an important speech atthe meeting was true.A. ThatB. WhyC. WhatD. How2. ___we’ll go camping tomorrow depends on the weather .A IfB WhetherC ThatD Where3. It worried her a bit ___ her hair was turning gray.A.whetherB. thatC. whatD. when4.What I say and think ___ none of your business.A. isB. areC. has D have请用恰当的主语从句连词填空: What ,it ,that , whether, whoever1. _____ you don’t like him is none of my business.2. _____ he said at the meeting astonished everybody present3. ________ the 2000 Olympic Games will be held in Beijing is not known yet.4. ________ we’ll go camping tomorrow depends on the weather.5. ________ leaves the room last ought to turn off the lights.用whether\if填空1.The question is ________ the film is interesting.2.________ we shall attend the meeting hasn't been decided yet.Correct or not?If we will have a meeting hasn’t been decided yet.Whether we will have a meeting hasn’t been decided yet.Pay attention:放在名词性从句句首,表示“是否”,只能用whether, 不能用ifThat she wants to know is when the party will be held .What she wants to know is when the party will be held .Pay attention:此主语从句缺少成分-宾语,故用作成分的what来引导,而不用thatHe will give up his job surprises all of us.That he will give up his job surprises all of us.Pay attention:由that引导的主语从句放在句首,that 不能省略。