高中英语从句之主语从句讲解(特殊句式系列)

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。