高中英语从句之主语从句讲解(特殊句式系列)
主语从句(人教版高中英语必修三unit4)
主语从句后置!
为了避免主语冗长,句子头重脚轻,经常用it作 形式主语,主语从句放在后面作真正的主be late is certain. -- It’s certain that we shall be late.
1. That the earth is round is known to all.
Correct or not?
10
*That she wants to know is when the party
will be held .
×
What she wants to know is…….
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that。
It is a fact that……
事实是……
It + 不及物动词 ＋ that从句
It appears that…
似乎…
It happens that ….
碰巧…
It occurred to me that…… 我突然想起……
*__It_i_s_a__p_it_y_t_h_a_t__(很遗憾)we lost the match.
What seems easy to some people seems difficult to others. Which side will win is not clear.
3)连接副词when，where， how， why等
Why he did it remains a mystery. When they will start is not known yet. How he became a great scientist is known to us all.
名词性从句之主语从句课件高三英语一轮复习(4)
• What make the river more beautiful are the lotus plants growing in the water.
• What you need is a good-sized canvas bag.
• What I am afraid of is their taking him to Portugal.
“That he finished writing the composition in such a short time”便是该复合句的主语从句。
引导主语从句的连接词主要有：
• 从属连词：that whether • 连接代词：who whoever whom whose
what whatever which whichever • 连接副词：when where how why
Which car we should take is the most important thing. (你们)谁先到谁得奖。 Whichever (of you) comes in first will receive a prize.
练习：
你要哪个哪个就是你的。
Whichever you want is yours.
这件事怎样发生的，谁也不清楚。
How this happened is not clear to anyone.
我们要去哪里还没有定下来。 Where we will go haven’t been decided yet. 我在哪里过暑假不关你的事。 Where I spend my summer is none of your busiever horse comes in first wins.
高中英语主语从句讲解课件(36张ppt)
*_I_t_i_s_p_o_s_s_i_b_le__th__a_t _(很可能)she will come back tomorrow. *__It_i_s_o__b_v_io_u_s__th__a_t _(很明显)this measure is effective.
3) It + be +过去分词+从句
4.The reason why I study hard is that I want to go to a
key university. 表语从句
5.They believe in that she must still be single. 6.I know nothing about him except that he is living in
找出错误，并给出理由： 1.Where shall we spend the holiday isn’t
decided. we shall 2.You have made a mistake is a fact.
That you have 3. If the policeman will come is not certain.
Beijing 7. I don’t know whether he’s free or not. 8. Mary asked whether I was doing my homework or not. 9. I’m thinking of whether we should go fishing. 10. We are worried about whether it will rain tomorrow.
killed in the accident.
高中英语主语从句讲解课件(共36张PPT)
这样就构成了下面一些常用句型: 1) It is + n. +从句
(四). 判断以下句子是否正确： They should like each other is natural. 错误
That they like each other is natural. 正确
It is natural that they like each other. 正确
That引导的主语从句放句首，既不充当成分又无意义， 但that不能省去。
名词性从句包括： 宾语从句：介宾结构；动宾结构 表语从句：系表结构(系动词后面跟一个从句) 主语从句: 一个句子做主语 同位语从句：对名词进行解释说明
判断下列从句： 1.China is no longer what she used to be. 2.The question remains whether they will be able to help us. 3.It seemed as if I couldn't think of the right word.
When they will leave is not decided.
(4). 连接代词：who(谁，主格); whom(谁；宾格); whose(谁的); what(什么…事/话…); which(哪一个); whoever(无论谁), whatever(无论什么), whichever(无论哪一个) 在句子中担任主语， 宾语，表语或定语
第05讲 名词性从句之主语从句(解析版)【暑假自学课】2023年新高二英语
第05讲名词性从句之主语从句1．了解主语从句的概念和用法。
2．可以根据本节课的内容来完成一些习题。
关于各种从句，有一个浅显易懂的规律：它在句子里面是什么成分，就是什么从句。
比如：▼ 定语从句：作定语的从句I have a dog that is very cute. 我有一只可爱的狗主语谓语宾语定语从句（句中做定语，限定修饰前面的名词dog）▼ 宾语从句：作宾语的从句，放在动词或介词后面I think the dog is very cute.我觉得这个狗很可爱主语谓语宾语从句（句中做think的宾语）▼ 状语从句：作状语的从句I bought a dog because it’s very cute. 我买了一只狗，因为它很可爱主语谓语宾语状语语从句（句中做状语，表原因）那么，主语从句是？聪明的人都能看出来——作主语的呗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：引导主语从句的词有连词：that, whether, if；连接代词：what, whatever, who, whoever, whom, whomever, whose, which, whichever；连接副词：when, whenever, where, wherever, how, however, why。
答案第1页，共15页1. 连词that, whether, if引导的主语从句that在主语从句中不作成分，没有意思，不能省略；whether和if虽不作句子的成分，但有“是否”的意思，且if引导的主语从句不能位于句首。
(完整word版)主语从句讲解
主语从句1．定义：用作主语的从句叫做主语从句。
2．引导主语从句的关联词有三类：（1）从属连词that、whether。
如：如:That they were in truth sisters was clear from the facial resemblance between them。
很明显，她们确是亲姐妹，她们的脸型很相似.Whether he’ll come here isn’t clear。
他是否会来这里还不清楚。
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.由whether及其他连词引导的主语从句放在句首，句后都可. If只能放在句中.造句:1。
、很明显他是个好人.2。
、他通过了考试让妈妈很高兴。
3、天气是否会转晴还不确定。
(3）（特殊疑问词）连接代词who, whom， whose， what, which, whoever， whatever, whichever 如：__________watch was lost is unknown.__________she did is not yet known. 她干了什么尚不清楚.__________side will win is not clear。
__________comes is welcome。
不论谁来都欢迎。
__________ was said has left us much to think。
这里说的话都应当保密.造句：1. 我们需要的是时间。
2。
谁将成为我们的班长还没有决定。
3。
哪本书更好还不知道。
(4) （特殊疑问词）连接副词 where, when, how， why，wherever，whenever，however。
___________ he did it remains a mystery.When they will start is not known yet.How this happened is not clear to anyone。
高中名词性从句专项之主语从句(第二讲)
2. ______ Mary left is still a question.
3.____he solved the problem successfully interested all of us. 4. present. comes to the party will receive a
5. It’s reported ____ three people were killed in the accident.
II运用主语从句引导词填空:(why, which, how, that, whoever) 1. Which ____ team will win the match is still unknown.
Why Mary left is still a question. 2. ______
How 3.____he solved the problem successfully interested all of us. 4.Whoever comes to the party will receive a present.
Do exercises： I.选词填空：whoever， why ，which，if。 1. he was late is not clear. 2. kinds of books they will buy needs considering. 3.It is uncertain he can succeed. 4. finishes first will get the first prize. Tips:可根据句子意思和分析句子成分做出选择. II.英汉互译.(使用主语从句) 1.他成功了让我们很兴奋. 2. 你做的事真的伤了我.
Question & challenging time(提问与挑战时间) :
高中英语2024届高考名词性从句知识分类讲解(主语从句+宾语从句+表语从句+同位语从句)
高考英语名词性从句知识讲解名词性从句是指在复合句中起名词作用的句子，功能相当于名词词组。
名词性从句在复合句中能作主语、宾语、表语、同位语等，根据在句中的语法功能可分为主语从句、宾语从句、表语从句和同位语从句。
一、主语从句【定义】在复合句中，作主语的句子称为主语从句。
常见的连接词：（连接词在句中不能省略）that, whether, who, what, whatever, whoever, where, when, why, how等。
【用法】1.连接词 that 引导That we should learn English well is very important.主语从句中 we should learn English well句子完整，不缺成分，用that引导，that 不能省连接词whether，if 引导whether 引导的主语从句可放句首，也可放句中，表“是否”if 引导的主语从句只能引导动词后的宾语Whether I will go or not depend on the weather.It remains to be seen whether / if they can finish the task in time.2.连接代词what, who, which, whose, whatever, whichever，whoever等引导What matters most is your attitude.3.连接副词when，where，why，how等引导How he made it is still unknown.4.it作形式主语为了避免句子头重脚轻，通常把形式主语it放在句首，真正的主语放在句子后面。
常见句型：(1) It is + n.+ that + 句子It is +（a pity / a shame / a fact …）+ that ...(2) It is + adj.+ that + 句子It is +（true / clear / important …）+ that ...(3) It is + 过去分词 + that + 句子It is+ said / announced / expected / believed / hoped… + that ...(4) It seems /appears / happens / turned out that + 句子(5) It hit sb./occurred to sb.that + 句子二、宾语从句【定义】在复合句中，作宾语的句子称为宾语从句。
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高中英语从句之主语从句讲解
（特殊句式系列）
一，that引导但是补充当成分的主语从句
That the man can get it is known to all=It's known to all that the man can get it 这个男人能得到它是众所众知的。
1，It's important that you can learn English well
你能学好英语是很重要的
2，It's known that you are so strong
你很强壮是众所周知的。
二，if 和whether 做的连接词的主语从句
It is not sure whether he will come to your house or not 他是否来你家是不确定=Whether he will come to your house or not is not sure
It is not sure if he will come to your house
三，疑问代词引导的主语从句
What you can see is true 你所看到的都是真的
Whom you are talking with is my friend 你正在聊天的这个人是我的朋友
What I want are the bags on the desk 我所想要的是在桌子上的包。
What I want is a bag on the desk 我所有想要的是在桌子上的那个包。
It is true what you can see 你所看到的都是真的
It is a bag on the desk what I want
四，it 做形式主语的几种形式
1，常用形容词：
Certain 明确的，clear 清晰的，important重要的，natural自然的，necessary 必要的，obvious明显的，unbelievable 难以置信的，strange 奇怪的，unlikely不可能的，right 正确
It is unlikely that you can lift the big stone 你能举起这个大石头是不可能的。
2，常用名词：
A pity 遗憾，a shame 耻辱，good news 好消息，a fact 事实，a problem 问题，a wonder奇迹，an honor 荣耀，no wonder 难怪，a surprise 惊奇，a mystery 迷。
It is a mystery that you can fly in the sky 你能在天上飞是一个迷。
3，常用动词过分词汇
1，advised 建议，2，believed 据认为，3，decided做出决定，4，heard 有人听说，5，made clear 澄清，6，remembered 有人记得，7，suggested 有人建议，8，turned out 结果，9，announced 据宣布，10，considered 据认为，11，found out 据查明，12，hoped 有人希望，13，pointed out 有人指出，14，reported 据报道，15，said 据说，16，told 据告知，17，well known 很著名。
It is turned out that the man helped the woman before 这个男人帮助过这个女
人的事情已经有了结果。
4，特殊动词常用语主语从句：
1，seem 看上去，2，happen 碰巧，3，appear显得，4，matter 重要
It appears that he doesn't regret his decision 看起来好像他并不后悔他的决定。
5，主语从句的疑问形式
Is it true that he can lift the big stone？他能举起大石头是真的么？
Does it appear that he doesn't regret his decision 看起来好像并不后悔他的决定？
课后习题
1.________ makes mistakes must correct them.
A. What
B. That
C. Whoever
D. Whatever
2. It worried her a bit ____ her hair was turning grey.
A. while
B. that
C. if
D. for
3.When and why he came here ________ yet.
A. is not known
B. are not known
C. has not known
D. have not known
4. ________ is no reason for dismissing her.
A. Because she was a few minutes late
B. Owing to a few minutes late
C. The fact that she was a few minutes late
D. Being a few minutes late
5. ________ Tom liked to eat was different from ________.
A. That…that you had expected
B. What …that you had expected
C. That…what you had expected
D. What…what you had expected
6.________ we go swimming every day ________ us a lot of good.
A. If...do
B. That...do
C. If...does
D. That...does
7.It ________ Bob drives badly.
A. thinks that
B. is thought what
C. thought that
D. is thought that
8.It's uncertain ________ the experiment is worth doing.
A. if
B. that
C. whether
D. how
9.________ the boy didn't take medicine made his mother angry.
A. That
B. What
C. How
D. Which
10.____ we can't get seems better than ____ we have.
A. What, what
B. What, that
C. That, that
D. That, what
11.____ you don't like him is none of my business.
A. What
B. Who
C. That
D. Whether
12..____ we'll go camping tomorrow depends on the weather.
A. If
B. Whether
C. That
D. Where
13._________is going to do the job will be decided by the Party committee.
A. That
B. Why
C. How
D. Who
14._______we'll finish translating the book depends on the time.
A. When
B. Why
C. What
D. That
15.______he won't go there is clear to all of us.
A. How
B. What
C. Why
D. This
16.______the house will be built will be discussed at tomorrow's meeting.
A. If
B. Where
C. That
D. What
17. ._______you come or not is up to you.
A. What
B. If
C. Why
D. Whether
18.._______makes mistakes must correct them.
A. Who
B. Anyone
C. Whoever
D. Anybody
19.._______team will win the match is a matter of public concern.
A. Which
B. That
C. If
D. How
20..________leaves the room last ought to turn off the lights.
A. Anyone
B. The person
C. Whoever
D. Who
[参考答案] 1-10 CBACD DDCAA 11-20 CBDAC BDCAC。