人教版高中语法复习之主语从句课件PPT

这是一份人教版高中语法复习之主语从句课件PPT，共23页。PPT课件主要包含了连接词，连接词的选用，What，Who，Whether，单数形式，it为形式主语，主语从句的规律，主语从句的规律，we shall等内容，欢迎下载使用。

Her jb is teaching.
What she des is teaching.
在句中充当主语的从句叫做主语从句。
1That he will cme is certain.2Whether it will please them is nt easy t say.3What seems easy t sme peple seems difficult t thers.4Which side will win is nt clear.5Why he did it remains a mystery.6When they will start is nt knwn yet.7Hw he became a great scientist is knwn t us all.8Wh will take part in the meeting has nt been decided.9Whever breaks the law will be punished.10Where she is frm is unknwn.
that ①无实际意义 ②只起连接作用
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
如缺“哪一个”的意思，用
主语从句的连接词：连接词 that , whether 连接代词 wh(ever), whm(ever), which(ever), what(ever)等连接副词 where ,when ,why ,hw
Cmplete the sentences using what, whether, where, when， wh, why, hw r that.
1.(_____ is needed fr success) is yur hard wrk.
3.(_____ we will g tmrrw )hasn’t been decided yet.
2.(______ they will arrive )has been tld t the teacher.
4.(______ can jin in the sprt meet) is decided by the teacher.
5.(________ it will rain r nt) is nt clear.
When/Hw/Whether
Where/whether
选择连接词：缺什么补什么。
主语从句作主语时，谓语动词一般用 。
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 f advice is they shuld like each ther is natural.
It is natural that they shuld like each ther.
It is impssible that he will refuse this piece f 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 lse 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 pssible that... 　 It’s certain that… *_________________(很可能)she will cme back tmrrw.
It is pssible that
3) It +不及物动词+从句 It happened that... 刚好…;碰巧… It ccurred t me that… 我突然想起…*It happened that I came int the ffice at that time.*It ccurred t me that I frget t 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 knwn t all that... It is reprted that... *___________________(据报道)20 peple were killed in the accident.
It is reprted 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 cme is nt knwn.
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 cme is nt knwn.
主语从句的规律：
例2. He will nt cme t the meeting this evening is true.
正：That he will nt cme t 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。
例3. If the meeting will be put ff has nt been decided yet.
正： Whether the meeting will be put ff has nt 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 nt been decided yet ________ the meeting will be put ff.
例4. That whether he will help thers is a fact.
正：That he will help thers is a fact.
规律四、主语从句中的连词不能重叠使用
例5. When he will cme are a puzzle.
正：When he will cme 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。
1. What he needs is that bk.2. What he needs are sme bks.
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 arund the sun is knwn t all.
It is knwn t all that the earth turns arund the sun.
2. _______ they can slve the questin is still unknwn. A. If B. Which C. Whether D. What
3. _____ he said at the meeting astnished everybdy. A. Why B. What C. That D. Wh
4. ____ is a fact that English is accepted as an internatinal language. A. There B. This C. That D. It
1. _____ we need mre practice is quite bvius. A. What B. That C. When D. /
找出错误，并给出理由：1.Where shall we spend the hliday isn’t decided. 2.Yu have made a mistake is a fact. 3. If the pliceman will cme is nt certain.4. That is certain that we can win.
That yu have
5. It is rdered we shuld leave at nce.6. Where he cmes frm are a mystery.7. What whether he likes the jb is nt clear.8. Wh he is and where he is frm is imprtant. 9.What he saw is the stars in the sky.
①表 “应该，惊讶、惋惜、遗憾”等意义It is imprtant /natural /necessary/strange that... 谓语形式为:(shuld) + V.原形 eg. 很奇怪，他竟没有来。 It is strange that___________________.
he shuld nt cme