(共14张PPT)
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 之
主语从句
Lead-in:
找出每个句子中的主语
1. Mark is good at playing the piano.
2. He went out with his friends.
3. To see is believe.
4. Smoking is bad for health.
5. What he said is true.
主语从句引导词
1. 连接词
2. 连接代词
3. 连接副词
that whether / if
what (ever) who (ever) whom (ever) which (ever) whose
when (ever) where ( ever) why how ( ever )
Eg:
he will come to our village tomorrow surprises us all.
it will do good to us remains to be seen.
the accident happened is still unknown.
won the game hasn’t been announced yet.
That
Whether
How
Who
1. you can succeed or not depends on how hard you work at it. t
2. It is unknown he has agreed on my plan.
3. the earth moves around the sun is known to all.
4. he said just now is true.
5. comes late will be punished by the teacher.
Whether
whether / if
That
What
Whoever
Doing exercise:
1. Yuan Longping really cared about was not money.
2. class will win is not clear.
3. the meeting will start has not been decided yet.
4. Li Bai was born is known to the public.
5. should do the work requires consideration.
What
Which
When
Where
Who
Doing exercise:
目的:避免主语过长,导致整个句子头重脚轻.
特别注意1: It=形式主语
1. That he will come to our village tomorrow surprises us all.
It surprises us all that he will come to our village tomorrow.
特别注意: It=形式主语
2. Whether it will do good to us remains to be seen.
It remains to be seen whether ( if ) it will do good to us.
3. How the accident happened is still unknown.
It is still unknown remains how the accident happened.
几乎所有的主语从句都可以改成it形式主语
But!
以what / whatever 引导的
主语从句不可以改为it形
式主语的结构。
It is +形容词 / 名词 / 名词短语等 + that 引导主语从句
特别注意2:
important、necessary、a necessity
that 从句中的谓语动词一般要采用“ should + do” 的虚拟
语气形式,should经常省略
特别注意2:
It is necessary that we ( should ) learn English well.
It is highly important that we ( should ) fasten the belt
while driving the car.
It is ( was ) + 被强调部分 + who ( that ) +其他
特别注意3: 强调句
He met Li Ping yesterday.
It was yesterday that he met Li Ping.
I met Li Ming at the railway station yesterday.
It was I who met Li Ming at the railway station yesterday.
It is important that we eat well
It was last week that he finished his woek.