主语从句精讲精练

That you
2. 用适当的连接词填空，使句子意思完整： Why he didn't attend the meeting yesterday 1. ____ wasn't quite clear. Which team will win the match is still 2. _________ unknown. Whoever comes to the party will receive a 3. __________ present. How 4. _________ he solved the problem successfully interested all of us. that 5. It's reported ____________ three people were killed in the accident.
should
2. If he can finish his task on time is of great importance. Whether
3. That she wants to know is when the party will be held. What
4. When the meeting will be held haven't been known yet. hasn't 5. You have made a mistake is a fact.
1. ______ he talked about in his article was unknown to the readers. 2. _________ I go to work after graduating depends on some specific situations. 3. ________ can be the last winner is still a mystery. 4. _________we will go to Qinghai Lake is up to you. 5. _________ the earth turns around the sun is known to all. 6. _________ breaks the window will be punished.
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识别名词性从句和说出每种从句的判断方法； 归纳总结主语从句的常考点； 区分定语从句和同位语从句； 准确使用名词性从句的引导词并可以用名词性 从句翻译句子。
主语从句 subject clause 宾语从句 object clause 表语从句 predicative clause 同位语从句 appositive clause
2.What you said is of great importance.
I have no idea when he will come back. 可以跟同位语从句的名词主要是抽象名词， 通常有：
news，idea，fact，promise，question，doubt，
thought，hope，message，suggestion，word
1. 及物动词之后. The teacher said that light travels much faster than sound. 2. 介词之后. I worry about whether I hurt her feelings. 3. 系表之后. I am sure that he can help me. 4. 句末，前有it 作形式宾语. We consider it possible that he is ill.
*it为形式主语
这样就构成了下面一些常用句型: 1) It is + n. +从句 It is a pity/a wonder/a question/no wonder that… It is a pity that *_______________( 很遗憾)we lost the match. It is a fact that *______________(这是事实)he cheated in the exam.
系动词之后
The truth is that I have never been there. It looks as if it is going to rain. 常跟表语从句的系动词： be, seem, appear, look, sound, remain…
1.句首，谓语动词之前。 What we need is your help. Whoever break the rule will be punished. 2.句末，前有it 做形式主语。 It is obvious that I am happy.
定语
4.Who will take part in the meeting has not been decided.
主语
5. Whoever makes mistakes must correct them.
主语
6. What many scientists believe is that the earth is 宾语 round. 7.Whatever was said here must be kept secret.
2) It is + adj. +从句 It is true/clear/well-known/likely/obvious/ impossible/possible that …
It is possible that *_________________(很可能)she will come back tomorrow. It is obvious that 很明显)this measure is *_________________( effective.
但what引导的主语从句谓语动词用单数还是复数，， 要视句子的意义而定。 What I need _____money. What I need _______ books.
1.连接词 ：that、if、 whether
不作成分
“是否”if不 无意义 用句首 2. 连接代词 ：who、 whom 、whose、 what、 which 、 whoever、 whichever、whatever、whomever 作成分(主，宾，表， 定） 有意义
（消息）, possibility等。
The news that he told me is true. 定语从句
The news that our team has won is true.
同位语从句
判断下列各句是同位语从句还是定语从句
1. They expressed the hope that they would come to visit China again. 同位语从句
When will he come is not known.
×
When he will come is not known. 主语从句一律用陈述语序！！
考点二、 主语从句的主谓一致
主语从句作主语，谓语一般用单数
Whoever says this is wrong．
When and where we’ll hold the meeting _____ not been decided yet.
2. The hope that she expressed is that they would come to visit China again.
定语从句
3. The fact that she works hard is well known to us all. 同位语从句
下列各句中均有一处错误，请改正： 1. It is important that we will finish the work on time.
4) It +不及物动词+从句 It happened that... 碰巧…… It occurred to me that…我突然想起…
It happened that 刚好)I came into the office *________________( at that time.
*____________________( It occurred to me that 我突然想起)I forget to sent the letter.
名词性从句类型 Noun clauses
高考命题规律 纵观近几年的高考，对名词性从句的考 查主要集中在以下题型：
1.完形填空 2.语法填空 3.短文改错 4.写作运用（高级句型）
（2014全国高考 ）
It is by no means clear 24 the president can do to end the strike. ( what)
3. 连接副词： when、 where、why、how
作状语 有意义
1. That they are badly in need of help is quite clear.
连接作用 是否
2. Whether it is true remains a problem.
3. Which student will win is uncertain.
主语从句需注意的问题
注 意：
1.“if” 不能在句首引导主语从句，应有 “whether”引导。
2.主语从句中用陈述语序
3.主语从句的 “that” 一般不能省。 4.“what”引导主语从句时，谓语动词：
wk.baidu.com
常与其后的名词作表语一致
1.What you left are only several old books.
主语
8.Where we live doesn’t matter.
状语
9. How the pyramids were built was still a mystery.
状语
Note: 连接词that 与 what 的区别
What he said makes me happy.
That a new teacher will come is true . 请你归纳
名词之后，解释说明名词的内容
We all know the truth that the earth goes round the sun. I have no idea when she will be back.
★考点一、 主语从句的语序
★考点二、 主语从句的主谓一致
★考点三、 主语从句的引导词 ★考点四、 it 作形式主语
3) It + be +过去分词+从句
It is said/reported/believed/expected/thought/ hoped that…
It is reported that 据报道)20 people were *___________________( killed in the accident. It is suggested that 建议)we should eat *______________________( more vegetable and do more exercise.
突破方法
做题三步曲：
步骤一：首先分清主句和从句。 步骤二：分析从句缺何种成分。 步骤三：根据分析，选择恰当的连接词
考点四、 it 作形式主语
1. That he will refuse this piece of advice is impossible. It is impossible that he will refuse this piece _______________________________________ of advice. _______________________________________ 2.That they should like each other is natural. It is natural that they should like each other. _____________________________________