本文目录
主语从句例句
1、That he finished writing the composition in such a short time surprised us all.
他在如此短的时间内写完作文使我们十分惊讶。
2、Whether we will go for an outing tomorrow remains unknown.
我们明天是否会去郊游仍旧未知。
3、Who will be our monitor hasn't been decided yet.
现在还没有决定谁会成为我们的班长。
4、Whom we must study for is a question of great importance.
“我们为谁而学习”是个很重要的问题。
5、What caused the accident remains unknown.
事故的起因是未知的。
扩展资料：
用it 作形式主语的结构
(1) It is +名词+that从句
It is a fact that … 事实是……
It is an honor that …非常荣幸
It is common knowledge that …是常识
(2) it is +形容词+that从句
It is natural that… 很自然……
It is strange that… 奇怪的是……
(3) it +不及物动词+that从句
It seems that… 似乎……
It happened that… 碰巧……
(4) it is+过去分词+that从句
It is reported that… 据报道……
It has been proved that… 已证实……
参考资料来源：百度百科-主语从句
主语从句后面是完整的句子吗
主语从句的时态：不受主句的时态影响和限制。
（1）That
he
finished
writing
the
composition
in
such
a
short
time
surprised
us
all.
（2）Whether
we
will
go
for
an
outing
tomorrow
remains
unknown.
（3）Who
will
be
our
monitor
hasn't
been
decided
yet.
（4）
Whom
we
must
study
for
is
a
question
of
great
importance.
（5）What
caused
the
accident
remains
unknown.
（6）Whatever
you
did
is
right.
（7）Whose
watch
was
lost
is
unknown.
（8）What
we
need
is
time.
（9）What
we
need
are
good
doctors.
为了防止句子头重脚轻，通常把形式主语it放在主语位置，真正主语搁置于句末
（1）It
is
certain
that
he
will
win
the
match.
（2）It
is
true
that
he
has
made
a
very
important
discovery
in
chemistry.
（3）It
is
very
likely
that
they
will
hold
a
meeting.
（4）It
is
strange
that
he
should
do
that.
（5）It
is
important
that
we
all
should
attend
the
meeting.
（6）It
is
strange
that
the
man
should
have
stuck
to
his
silly
ideas.
（7）It
is
a
pity
that
we
won't
be
able
to
go
to
the
south
to
spend
our
summer
vacation.
（8）It
is
still
a
mystery
what
caused
the
accident.
（9）It
is
said
that
he
has
gone
to
shanghai.(=He
is
said
to
have
gone
to
shanghai)
（10）It
is
known
to
all
that
the
gun
powder
was
first
invented
by
the
Chinese.
（11）It
is
suggested
that
the
work
should
be
done
with
great
care.
（12）It
seems
that
he
has
seen
the
film.(=He
seems
to
have
seen
the
film)
（13）It
happened
that
the
two
cheats
were
there.
(=The
two
cheats
happened
to
be
there)
如何搭建雅思写作中的高级句型英语
这里，推荐三个意义重大的公式。用这三个公式，可以瞬间使得文章在句型方面升级。
公式一： 主语从句
公式：It is ……that +原本已经写好的句子
具体内容：
It is undeniable that +原本句子 无可否认的是
It is fair to say that +原本句子 很合理的是
It is no exaggeration to say that+原本句子 毫不夸张的说
It is worth mentioning that+原本句子 值得提到的是
It must be stressed out that +原本句子 必须着重指出是
It must be admitted that +原本句子 应该承认的是
用法： 就放在原本写好的简单句前面就可以了。
情景：发现构思出的句子又短又没有亮点，果断变成主语从句，在原本简单句前面加上It…that结构就可以了。这些句型如此万能，以至于可以添加在文章中60%的句子前面，因为只要是作者写出的句子内容，基本上都可以说是“值得提到的”“得承认的”“毫不夸张的”。
公式二： 状语前置句
公式：状语前置+逗号+原本句子
具体内容：
More importantly, 句子 (更重要的是)
To be more specific, 句子 (更具体来说)
In this sense, 句子 (从这个意义来说)
Accordingly, 句子 (因此)
Admittedly, 句子 (得承认的是)
用法：把原本写好的句子前面加上以上的状语成分，再打一个逗号即可。
情景：其中表达2，3，5均是万能表达，可以加在文章中超过60%的句子前面，因为写作的基本规律就是一句解释一句，进行具体化处理，同时从内容上，都是“得承认的”。表达1是替代Further
more的绝妙表达，可以表示递进。表达5是极好的替代“so”的引出结果的表达。
公式三： 被动句
公式：原本宾语+be+过去分词形式+(by+原本主语)
用法：原本句子中的主语和宾语位置调换，动词变成be+过去分词形式，原本主语前面加上by即可。
情景：这是最简单的一个公式，但也是最容易被忽略的一种技巧。英文习惯用被动语态，中文更喜用主动语态。被动句是通向英文地道性的极好表达。改变思维定式，由“我们应该采取有效的行动”转换为“有效的行动应该被我们所采取“语言的地道性就会瞬间提升。
主语从句例句
一、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。
二、主语从句例句：
1. What surprised me most was that the little girl could play the violin so well.
2. Who will go to the concert is not known.
3. That she was chosen made us very happy.
4. Whether she will come or not is still a question.
5. Which book they will choose is still unknown.
6. When we shall hold our sports meet is not decided.
7. It’s strange that he knows nothing about it.
8. It is a pity that she has made such a mistake.
9. It is said that President Jingo will visit our school next week.
三、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。
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 is top from wins the game when two matched players meet. 两强相争勇者胜。
Whichever (of you) comes in first will receive a prize. 无论(你们)谁先到都可以得奖。
Whichever you want is yours. 你要哪个哪个就是你的。
4. 连接副词引导
When we arrive doesn’t matter. 什么时候到没有关系。
How it was done was a mystery. 这是怎样做的是一个谜。
How this happended is not clear to anyone. 这件事怎样发生的，谁也不清楚。
How many people we are to invite is still a question. 邀请多少人还是一个问题。
Where I spend my summer is no business of yours. 我在哪里过暑假不关你的事。
5. 关系代词型what引导
What we need is money. 我们需要的是钱。
What I want to know is this. 我想知道的就是这一点。
What’s done is done. 事已成定局。
What he says is not important. 他说的话并不重要。
What I am telling you is mere impressions. 我和你说的都不过是一些印象而已。
What make the river more beautiful are the lotus plants growing in the water. 为河水增色的是水里的荷花。
What you need is a good-sized canvas bag. 你需要的是一个比较大的帆布袋。
What I am afraid of is their taking him to Portugal. 我担心的是他们把他带到葡萄牙去。
What struck me was that they have all suffered a lot. 给我很深印象的是他们都受过很多苦。
四、主语从句与形式主语it
有时为了考虑句子平衡，通常在主语从句处使用形式主语it，而将真正的主语从句移至句末。这分三种情况：
(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：
It’s a pity that he didn’t come. 很遗憾他没来。
It is important that he should know about this. 他必须知道此事。
It’s vital that we be present. 我们出席是至关重要的。
It was intended that you be the candidate. 大家的意图是让你当候选人。
It is important that this mission not fail. 这项使命不失败至关重要。
It is essential that a meeting be convened this week. 本周开一次会非常重要。
It is appropriate that this tax be abolished. 废除这个税是恰当的。
It’s unfair that so many people should lose their jobs. 竟有这么多人失业这是不公平的。
It’s amazing that she should have said nothing about it. 她竟未谈及此事令人惊讶。
It’s unthinkable that they should deny my request. 他们竟然拒绝我的请求，这是不可思议的。
That they should refuse to sign the petition required great courage. 他们拒绝在请愿书上签字这是需要很大勇气的。
(2) 对于以连接代词(副词)引导的主语从句，可以使用形式主语代主语从句，也可直接在句首使用主语从句：
Whether they would support us was a problem. 他们是否会支持我们还是一个问题。
It was a problem whether they would support us. 他们是否会支持我们还是一个问题。
It remains to be seen whether it will do us harm or good. 它对我们是利是害，还得看看再说。
(3) 对关系代词型what引导的主语从句，通常直接将主语从句放在句首。如：
What we need is money. 我们需要的是钱。
What I want to know is this. 我想知道的就是这一点。
有时也可将助用形式主语。如：
It is clear enough what he meant. 他是什么意思很清楚。
(4) 如果句子是疑问句，则必须用带形式主语it的结构：
Is it true that he is the girl’s father? 他是那女孩的父亲，是真的吗？
How is it that you are late again? 你怎么又迟到了？
五、连词that的省略问题
引导主语从句的连词that 有时可省，有时不能省，其原则是：若that引导的主语从句直接位于句首，则that不能省略；若that引导的主语从句位于句末，而在句首使用了形式主语it，则that可以省略：
That you didn’t go to the talk was a pity. 很遗憾你没去听报告。(that不可省)
It was a pity (that) you didn’t go to the talk. 很遗憾你没去听报告。(that可省)
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