(共36张PPT)
人教版-必修三-高一年级
Noun Clause as the Subject
主语从句
Music time
What I want is what I’ve got.
Learning Aims
Master the use of the subject clause
Do some exercises
Finish a short passage using the subject clause.
{
His job is important.
What he does is important.
主语从句的定义:
主语
在句中充当主语的从句叫做主语从句。
1.That he will come is certain.
2.Whether he will come is not clear.
3.What she said is not yet known.
4. Who will go has not been decided.
5. Which side will win is not clear.
6. Whatever I have is yours.
7. Whoever comes is welcome.
8. When they will set off is not decided.
10.Where she is from is unknown.
11.Why he did it remains a mystery.
12.How we will paint the house has not been decided.
Find the subject clauses in the following sentences, and think about what are the connectors (连接词)
引导词
连接代词:
What(ever), who(ever), which(ever),
连接副词:
when, where, why, how
不做成分的连接词:
that, whether, if
Error correcting
When will they set off is not decided.
Where is she from is unknown.
they will
she is
主语从句的语序为_________________.
陈述句语序
Conclusion1:
●1. That he will come is certain.
● 2. Whether he will come is not clear.
●3. It is not clear whether he will come.
1._____不做成分,无意义,不能省略。
2.引导主语从句在句首只能用_______,有it作形式主语的________或____都可以.
If
×
if
that
whether
if
Conclusion2:
whether
如果主语从句中缺少 主语, 宾语, 表语或定语, 用连接代词 “what (ever), who (ever), whom (ever) which (ever)”。
1. What she said is not yet known.
2. Who will go has not been decided.
3. Which side will win is not clear
4. Whatever I have is yours.
5. Whoever comes is welcome.
What
Who
Which
Whatever
Whoever
判断主语从句中连接代词所做成分
Conclusion3:
宾语
主语
定语
宾语
主语
用连接代词填空
______ we can learn from the film is love.
What
learn sth from sb/sth
__________________ 谁将会赢得一等奖is unknown.
Who will win the first prize
______ one attracts more people is uncertain.
Which
________impress us is their fantastic performance and talented skill.
What
___________ breaks the law will be punished.
Whoever
Conclusion4
When they will set off is not decided.
Where she is from is unknown.
Why he cries is not clear.
How we will paint the house has not been decided.
如缺:时间状语用_____; 地点状语用______; 原因状语用______; 方式状语用______;
主语从句的谓语动词多用______________。
when
where
why
how
单数第三人称形式
____/______/____ the plane will be found is still not clear.
When
Where
How
Why the plane disappeared still ________ (remain) a mystery.
remains
What can you see on the screen ?
What I can see on the screen is _________.
are _______
what 引导的主语从句,可根据表语决定主句动词的单复数形式。
Conclusion5
a cake/a pig
flowers
What he needs _____ that book.
2. What he needs _____ some books.
is
are
That he will win the match is certain.
It is certain that he will win the match.
一般来说主语从句都是放在 ,但有时为了使句子保持 ,避免”头重脚轻”,
常用 作 ,从而把主语从句放在 .
句首
平衡
it
形式主语
后面
conclusion6:
Useful sentence structure:
1) It is + n. +从句
It is a pity/shame that... 遗憾的是……
It is a surprise that…令人惊奇的是…
It is a fact that… …是事实
It is common knowledge that… …是常识
*______________(很遗憾)we lost the match.
*________________(这是事实)he cheated in the exam.
It is a pity that
It is a fact that
2) It is + adj. +从句
It’s certain that… 肯定…
It is possible that... 很可能……
It is unlikely that... 不可能……
It is obvious that… 很明显…
It is necessary/important/natural/.. that…
*________________(很可能)she will come back tomorrow.
*________________(很明显)this measure is effective.
+(should) +do…
It is possible that
It is obvious that
3) It +不及物动词+从句
It happened that... 碰巧……
It occurred to me that…我突然想起…
*________________(刚好)I came into the office at that time.
*____________________(我突然想起)I forget to send the letter.
It happened that
It occurred to me that
4) It + be +过去分词+从句
It is said that... 据说……
It is known to all that... 众所周知……
It is reported that... 据报道……
It is believed that...据信……;人们相信……
It is suggested that + (should)do... 建议……
*_______________(据报道) Michelle Obama and her family have gone back to America.
*___________________(建议)we should eat more vegetables and do more exercise.
It is reported that
It is suggested that
we should wear rain shoes on rainy days.
我们雨天应该穿雨鞋(rain shoes)是常识。
It is common knowledge that ___________________________
It is important that we (should) have enough sleep.
我们有足够的睡眠很重要。
It is said that the hairstyle is popular.
据说这个发型(hairstyle)很流行。
1.用 that / whether / if/ /where / how / when /why /
who(ever)/what(ever)/which(ever)/ etc. 来连接主语从句.
Subject Clause
3.引导主语从句在句首只能用whether,有it作形式主语的whether/if都可以.
2.That 在主语从句中不能省略.
4.有时为了使句子结构平衡, 避免 “头重脚轻”,常用 it 作形式主语,而把从句放在后面.(4种句型)。
5.主语从句作主语时,谓语动词一般用单数形式。
summary:
What do you think of English learning?
How can you learn English well?
众所周知,英语已经变成了一种国际性语言。 English is widely spoken in the world. Believe it or not, it’s spoken by more than four hundred million people. So, 我们学好英语很重要。 However, 我们如何学好英语是一个问题。 The best way is to use it all the time . It doesn’t matter _______ we can recite all those grammar rules. _______ we need to do is try to understand and use the language.
It is well known that English has
become an international language.
It is important
How we can learn English well is a problem.
whether
What
that we (should) learn English well.
众所周知,英语在生活中起很重要的作用。因此,我们如何学好英语很重要。首先,背英语单词是很有必要的。其次,我们应该学习英语语法。我们是否能记住所有的语法规则没有关系。我们需要做的是努力理解并使用它。另外,掌握好英语口语也是很重要的。我们要做的是每天练习。总之,学习英语最好的方式就是每天使用它。
It is well known that English plays an important part in our daily life. Therefore, How we learn English well is important.
Firstly, it is necessary that we should recite the new words. Secondly, we should learn English Grammar. It doesn’t matter whether we can remember all the grammar rules. What we need to do is understand and try to make use of it. In addition, it is important that we have a good knowledge of Oral English as well. What we need to do is to practice every day.
In a word, the best way to learn English well is to use it every day.
Try to write a passage and describe a person whom you like. Please use as many Subject Clause as possible.