2022届高考英语二轮复习：主语从句课件（23张）
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| 名称 | 2022届高考英语二轮复习：主语从句课件（23张） |  | |
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| 文件大小 | 255.3KB | ||
| 资源类型 | 教案 | ||
| 版本资源 | 通用版 | ||
| 科目 | 英语 | ||
| 更新时间 | 2022-04-26 18:34:02 | ||
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(共23张PPT)
主语从句
Her job is teaching.
What she does is teaching.
在句中充当主语的从句叫做主语从句。
定义
1That he will come is certain.
2Whether it will please them is not easy to say.
3What seems easy to some people seems difficult to others.
4Which side will win is not clear.
5Why he did it remains a mystery.
6When they will start is not known yet.
7How he became a great scientist is known to us all.
8Who will take part in the meeting has not been decided.
9Whoever breaks the law will be punished.
10Where she is from is unknown.
连接词
that ①无实际意义 ②只起连接作用
是否
连接词如何选用？
1.从句中什么成分都不缺，用
2.从句中需要表“是否”的词，用
3.其他，缺什么补什么
连接词的选用
that
whether
如缺“哪一个”的意思，用
which
主语从句的连接词：
连接词 that , whether
连接代词 who(ever), whom(ever),
which(ever), what(ever)等
连接副词 where ,when ,why ,how
Complete the sentences using what, whether, where,
when， who, why, how or that.
1.(_____ is needed for success) is your hard work.
3.(_____ we will go tomorrow )hasn’t been decided yet.
2.(______ they will arrive )has been told to the teacher.
4.(______ can join in the sport meet) is decided by the teacher.
5.(________ it will rain or not) is not clear.
What
When/How/Whether
Where/whether
Who
Whether
选择连接词：缺什么补什么。
Conclusion:
主语从句作主语时，谓语动词一般用 。
单数形式
注意: 由that 引导的主语从句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。 例如:
1. That he will refuse this piece of advice is impossible.
2.That they should like each other is natural.
*it为形式主语
It is natural that they should like each other.
It is impossible that he will refuse this piece of advice.
It作形式主语的四种常用句型
It +be+名词+that从句
It +be+形容词+that从句
It +不及物动词+that从句
It +be+动词的过去分词+that从句
1) It is + n. +从句
It is a pity/a fact/a surprise that…
*_______________(很遗憾)we lose 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 is possible that...
It’s certain that…
*_________________(很可能)she will come back tomorrow.
It is possible that
3) It +不及物动词+从句
It happened that... 刚好…;碰巧…
It occurred to me that… 我突然想起…
*It happened that I came into the office at that time.
*It occurred to me that I forget to send the letter.
我刚好在那个时候进入办公室。
我突然想到我忘记寄信了。
4) It + be +过去分词+从句
It is said that...
It is known to all that...
It is reported that...
*___________________(据报道)20 people were killed in the accident.
It is reported that
主语从句的规律：
找出下列句子中的错误，并总结规律
例1.When will he come is not known.
规律一、主语从句一律用陈述语序，
即主语在前，谓语在后。
正：When he will come is not known.
主语从句的规律：
例2. He will not come to the meeting
this evening is true.
正：That he will not come to the
meeting this evening is true.
规律二、连词that 在从句中无实际意义，但不能省略。
主语从句的规律：
例3. If the meeting will be put off
has not been decided yet.
正： Whether the meeting will be put off
has not been decided yet.
规律三、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.
It has not been decided yet ________ the meeting will be put off.
if/whether
主语从句的规律：
例4. That whether he will help others
is a fact.
正：That he will help others is a fact.
规律四、主语从句中的连词不能重叠使用
主语从句的规律：
例5. When he will come are a puzzle.
正：When he will come is a puzzle.
规律五、含主语从句的主句谓语动词多用单数第三人称形式。
主语从句的规律：
1. What he needs is that book.
2. What he needs are some books.
规律六、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。
规律七、主语从句为了避免头重脚轻现象，用 it 做形式主语，而把从句放在后面。
That the earth turns around the sun is known to all.
It is known to all that the earth turns
around the sun.
2. _______ they can solve the question is still
unknown.
A. If B. Which C. Whether D. What
3. _____ he said at the meeting astonished
everybody.
A. Why B. What C. That D. Who
4. ____ is a fact that English is accepted as an
international language.
A. There B. This C. That D. It
1. _____ we need more practice is quite
obvious.
A. What B. That C. When D. /
找出错误，并给出理由：
1.Where shall we spend the holiday isn’t decided.
2.You have made a mistake is a fact.
3. If the policeman will come is not certain.
4. That is certain that we can win.
we shall
Whether
It
That you have
5. It is ordered we should leave at once.
6. Where he comes from are a mystery.
7. What whether he likes the job is not clear.
8. Who he is and where he is from is important.
9.What he saw is the stars in the sky.
that
is
x
are
are
主语从句的虚拟语气
①表 “应该，惊讶、惋惜、遗憾”等意义
It is important /natural /necessary/strange
that... 谓语形式为:(should) + V.原形
eg. 很奇怪，他竟没有来。
It is strange that___________________.
※
he should not come
②表示“据建议、据要求、据命令”
It+be+suggested/advised/ordered/requested/
commanded/ insisted/required that…
谓语形式为:(should) + V.原形
据命令，所有乘客必须接受搜查
It was ordered that all the passengers _____________________.
(should) be searched
主语从句
Her job is teaching.
What she does is teaching.
在句中充当主语的从句叫做主语从句。
定义
1That he will come is certain.
2Whether it will please them is not easy to say.
3What seems easy to some people seems difficult to others.
4Which side will win is not clear.
5Why he did it remains a mystery.
6When they will start is not known yet.
7How he became a great scientist is known to us all.
8Who will take part in the meeting has not been decided.
9Whoever breaks the law will be punished.
10Where she is from is unknown.
连接词
that ①无实际意义 ②只起连接作用
是否
连接词如何选用？
1.从句中什么成分都不缺，用
2.从句中需要表“是否”的词，用
3.其他，缺什么补什么
连接词的选用
that
whether
如缺“哪一个”的意思，用
which
主语从句的连接词：
连接词 that , whether
连接代词 who(ever), whom(ever),
which(ever), what(ever)等
连接副词 where ,when ,why ,how
Complete the sentences using what, whether, where,
when， who, why, how or that.
1.(_____ is needed for success) is your hard work.
3.(_____ we will go tomorrow )hasn’t been decided yet.
2.(______ they will arrive )has been told to the teacher.
4.(______ can join in the sport meet) is decided by the teacher.
5.(________ it will rain or not) is not clear.
What
When/How/Whether
Where/whether
Who
Whether
选择连接词：缺什么补什么。
Conclusion:
主语从句作主语时，谓语动词一般用 。
单数形式
注意: 由that 引导的主语从句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。 例如:
1. That he will refuse this piece of advice is impossible.
2.That they should like each other is natural.
*it为形式主语
It is natural that they should like each other.
It is impossible that he will refuse this piece of advice.
It作形式主语的四种常用句型
It +be+名词+that从句
It +be+形容词+that从句
It +不及物动词+that从句
It +be+动词的过去分词+that从句
1) It is + n. +从句
It is a pity/a fact/a surprise that…
*_______________(很遗憾)we lose 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 is possible that...
It’s certain that…
*_________________(很可能)she will come back tomorrow.
It is possible that
3) It +不及物动词+从句
It happened that... 刚好…;碰巧…
It occurred to me that… 我突然想起…
*It happened that I came into the office at that time.
*It occurred to me that I forget to send the letter.
我刚好在那个时候进入办公室。
我突然想到我忘记寄信了。
4) It + be +过去分词+从句
It is said that...
It is known to all that...
It is reported that...
*___________________(据报道)20 people were killed in the accident.
It is reported that
主语从句的规律：
找出下列句子中的错误，并总结规律
例1.When will he come is not known.
规律一、主语从句一律用陈述语序，
即主语在前，谓语在后。
正：When he will come is not known.
主语从句的规律：
例2. He will not come to the meeting
this evening is true.
正：That he will not come to the
meeting this evening is true.
规律二、连词that 在从句中无实际意义，但不能省略。
主语从句的规律：
例3. If the meeting will be put off
has not been decided yet.
正： Whether the meeting will be put off
has not been decided yet.
规律三、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.
It has not been decided yet ________ the meeting will be put off.
if/whether
主语从句的规律：
例4. That whether he will help others
is a fact.
正：That he will help others is a fact.
规律四、主语从句中的连词不能重叠使用
主语从句的规律：
例5. When he will come are a puzzle.
正：When he will come is a puzzle.
规律五、含主语从句的主句谓语动词多用单数第三人称形式。
主语从句的规律：
1. What he needs is that book.
2. What he needs are some books.
规律六、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。
规律七、主语从句为了避免头重脚轻现象，用 it 做形式主语，而把从句放在后面。
That the earth turns around the sun is known to all.
It is known to all that the earth turns
around the sun.
2. _______ they can solve the question is still
unknown.
A. If B. Which C. Whether D. What
3. _____ he said at the meeting astonished
everybody.
A. Why B. What C. That D. Who
4. ____ is a fact that English is accepted as an
international language.
A. There B. This C. That D. It
1. _____ we need more practice is quite
obvious.
A. What B. That C. When D. /
找出错误，并给出理由：
1.Where shall we spend the holiday isn’t decided.
2.You have made a mistake is a fact.
3. If the policeman will come is not certain.
4. That is certain that we can win.
we shall
Whether
It
That you have
5. It is ordered we should leave at once.
6. Where he comes from are a mystery.
7. What whether he likes the job is not clear.
8. Who he is and where he is from is important.
9.What he saw is the stars in the sky.
that
is
x
are
are
主语从句的虚拟语气
①表 “应该，惊讶、惋惜、遗憾”等意义
It is important /natural /necessary/strange
that... 谓语形式为:(should) + V.原形
eg. 很奇怪，他竟没有来。
It is strange that___________________.
※
he should not come
②表示“据建议、据要求、据命令”
It+be+suggested/advised/ordered/requested/
commanded/ insisted/required that…
谓语形式为:(should) + V.原形
据命令，所有乘客必须接受搜查
It was ordered that all the passengers _____________________.
(should) be searched