高中英语名词性从句详细讲解全版.ppt

It appears that…
似乎…
It happens that ….
碰巧…
It occurred to me that…… 我突然想起…… 7
另注意在主语从句中用来表示惊奇、 不相信、惋惜、理应如此等语气时， 谓语动词要用 虚拟语气 “(should) +do”，常用的句型有：
It is necessary (important, natural, strange, etc.) that …
It has been decided that…… 已经决定……
3.It + be + 名词 ＋ that从句
It is common knowledge that… …是常识
It is a surprise that ….
令人惊奇的是…
It is a fact that……
事实是……
4.It + 不及物动词 ＋ that从句
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1.It + be + 形容词 ＋ that从句
It is necessary / important/ obvious that…
2.It + be + -ed分词 ＋ that从句
It is believed that…
人们相信…
Biblioteka Baidu
It is known to us all that …. 众所周知…
5.He will talk to us about what he saw in U.S.
宾语从句 6.It is impossible that I go and attend the
meeting.
主语从句 3
That/wh-clause + v +…主语从句 S +be/link.v + that/wh-clause表语从句 S + vt + that/wh-clause宾语从句 S + vi + prep + wh-clause宾语从句
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名词从句又可分别称为主语从句、宾语从句、表语从句和 同位语从句。
引导名词性从句的连接词可分为三类： 连接词：that, whether, if 连接代词：what, whatever, who, whoever, whom, whose, which. 连接副词：when, where, how, why 1。that只起连接主句和从句的作用，在从句中不担任任何成分， 本身也没有词义，宾语从句中可省略 2。不充当介宾 3。 引导主语从句、表语从句和同位语从句,that不可省略。 4. that whether, if, as if ,as though（以上在从句中均不充当任何 成分
C .That is D. It is
3.After Yang Liwei succeeded in circling the earth,_______ our astronauts desire to do is walk in space.(2004 上海)
名词性从句
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主语从句
subject clause
名词性从句 noun clause
宾语从句
object clause
表语从句
predicative clause
同位语从句
appositive clause
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辨别下列名词性从句的类别：
1.How the book will sell depends on its author.
That they will come __i_s____certain.
2. What 引导主语从句时,主句谓语动词的单复数由 表语的单复数决定.
What he wants __a_r_e__these books. What he wants ___is___some water.
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Exercises
It is right what you said yesterday.
2) T_h_a_t___she is still alive is a good thing.
It is a good thing that she is still alive.
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3.注意
主语从句中的“主谓一致”：
1.主语从句通常被看作一个整体,主句的谓语动词用单数 形式.
It is suggested (requested, proposed, desired, etc.) that…
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2. what 与that 在引导主语从句时的区别
what 引导主语从句时在句时在从句中充当 句子成分，如主语．宾语．表语，而that 则 不然。例如：
1)W__h_at___you said yesterday is right.
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一．主语从句
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或由形式主语it代替，而本身放 在句子末尾。 1. It 作形式主语
It 作形式主语代替主语从句，主要是为了平衡句子结构，主 语从句的连接词没有变化。例如：
It is a pity that you didn’t go to see the film. It doesn’t interest me whether you succeed or not.
1_________ in the regulations that you should not tell other people the pass word of your e-mail account. .(2005 上海)
A. What is required
B .What requires
主语从句
2.John said that he was leaving for London on Wednesday. 宾语从句
3.The fact is that he has not been seen recently. 表语从句
4.The fact that he has not been seen recently disturbs everyone in his office. 同位语从句
C It is required
D. It requires
2. The Foreign Minister said, “_______ our hope that the two sides will work towards peace.” (2006 北京)
A. This
B. There is