名词性从句 课件

(共29张PPT)
高考语法专题讲解之
名词性从句
主语从句
宾语从句
表语从句
同位语从句
　名词性从句
名词性从句在功能上相当于名词
主语
{
His job is important.
What he does is important.
表语
This is his job.
This is what he does every day.
{
宾语
{
I don’t like his job.
I don’t like what he does every day.
同位语
{
I don’t know about the man, Mr. White.
I don’t know about the fact that he is a teacher.
什么叫名词性从句？
在句子中起名词作用的句子叫名词从句 (Noun Clauses)
名词从句的功能相当于名词词组, 它在复合句中能担任主语、宾语、表语、同位语等
因此根据它在句中不同的语法功能，名词性从句又可分别称为________、________、__________和__________。
名词性从句
noun clause
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
I don’t think (that) he is an honest boy.
我认为他不是一个诚实的男孩。
宾语从句
连接词
I want to know where I can get so much money.
我想知道我在哪里可以得到这么多钱。
宾语从句
连接词
What I want to do now is going shopping.
我现在想做的事情是购物。
主语从句
连接词
Whether he can score the goal is a question.
他是否会进球是一个问题。
主语从句
连接词
The fact is that he stole the car.
事实就是他偷了车。
表语从句
连接词
My question is who will marry such a man as me.
问题是谁会嫁给我这样的人。
表语从句
连接词
II. 名词性从句的连接词：
从属连词 ：that、if、whether
无意义
2. 连接代词 ：who(谁)、whom (谁 宾语)、what(什么)
which(哪个)、whose(谁的)、whoever、
whatever
3. 连接副词: when(什么时候)、where(在哪里)、
why(为什么)、how(怎样）
“是否”
不作成分
I don’t think (that) he is an honest boy.
Whether he can score the goal is a question.
作主/宾/表/定
What I want to do now is going shopping.
My question is who will marry such a man as me.
I want to know where I can get so much money.
作状语
I know who he is .
主语
谓语
宾 语 从 句
连接词
从句主语
从句谓语
主 句
宾语从句
在句子中起宾语作用的句子叫宾语从句，宾语从句
放在及物动词或介词之后作宾语。
宾语从句的结构：
主句 + 连接词 + 宾语从句
We all agree with what you said at the meeting.
在从句中做表语
介词后的宾语从句
在从句中做宾语
找出句子中的宾语从句
We think it our duty that we should help others.
I find it impossible that he should finish the work in two days.
形式宾语
形式宾语
常用it作形式宾语的句型：
sb. +think/find/feel/make/believe/consider + it +adj./n. +that从句
用适当的连接词填空
I wondered _______ you were so angry.
It all depends on _______ they will
support us .
I can’t imagine _______made him act like
that.
4. I find it necessary _______ we should do
the homework.
5. He said ____ beautiful those flowers were.
why
whether
what
that
how
宾语从句中的否定转移
我认为他不会来这里
I think he won’t come here. ( )
I don’t think he will come here. ( )
注意：如果主句的谓语动词是think, believe, imagine, suppose等词的时候，要将宾语从句中的否定形式转移到主句中去。
√
表语从句位于连系动词后,基本结构为:
主语 + 系动词 + 表语从句。
表语从句
The question is whether we can rely on him.
主语
系动词
表语从句
在从句中不作成分，“是否”
.
常用的系动词有：be, become, seem, look,
sound
用适当的连接词填空
事实是我们赢了比赛。
The fact is _____ we won the game.
2. 她看起来似乎要哭了。
It looked ______ she was going to cry.
3. 今早Tom睡过头了，那是他上班迟到的原因。
Tom overslept this morning. That was
_____ he was late for work.
4. Tom今早上班迟到了，那是因为他睡过头了。
Tom was late for work this morning. That was
_______ he overslept.
5. Tom迟到的原因是他睡过头了.
The reason _____ Tom was late for work was _____ he overslept.
.
that
as if
why
because
that
why
表语从句的一些固定句型：
It looks as if … 看起来…..
That is why … 那是……的原因
That is because … 那是因为……
The reason why… is that… ……的原因是……
主语从句是在复合句中充当主语的从句，通常放在主句谓语动词之前。
他星期三来这里是肯定的。
That he will come here on Wednesday is certain.
主语从句
主语从句
谓语
表语
在从句中不作成分，无意义
主语从句有时用“it”作形式主语，把真正的主语放在后面，以避免头重脚轻。
It is certain that he will come here on Wednesday.
It + be + 形容词 ＋ that从句
It is necessary that… 有必要…
It is important that …. 重要的是…
It is obvious that…… 很明显……
It + be + -ed分词 ＋ that从句
It is believed that… 人们相信…
It is known to all that …. 众所周知…
It has been decided that…… 已经决定……
用it形式主语的that从句有以下四种不同的搭配：
It is believed that there is life in outer space.
It + be + 名词 ＋ that从句
It is common knowledge that… …是常识
It is an honor that …. …是非常荣幸
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 is an honor that I have the chance to
answer your question.
It happened that he wasn’t at home.
用适当的词填空
1. ______ he will succeed is certain .
2. ______ he said is not true .
3. ______ we will stay tonight has not been decided.
3. _____ is important that we teens should learn English.
4. It is a good news ______ he will attend the meeting on
behalf of our school.
That
What
It
that
Where