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Unit 4 Astronomy the science of the stars Grammar(学生版)

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B3U4 Grammar 主语从句 (实中.高一级) 一.回顾:按要求完成句子,使下列宾语从句和表语从句意思完整。1. I don’t know (这女孩是谁)2.He asked (什么时候他能休息)3. The question is (我们能解决的)4. It looks (似乎要下雨了)二.概念:在复合句中作 的句子叫 从句。Eg:You need more practice.(主语) What you need is more practice. (主语从句) I like English. ( ) What I like is English. ( )三. 连接词:1.请在下列句子中划出连接词和其所引导的主语从句。1) That he is still alive is a wonder.2) Whether they would support us was a problem.3) What I want to know is this.4) Who will go to the concert is not known.5) Which book they will choose is still unknown.6) Whichever you want is yours.7) When we arrive doesn’t matter. 8)How it was done was a mystery. [归纳]引导主语从句的连接词主要有(1)连接词 (2)连接代词 ___ _________________whose, whoever, whatever,whom (3)连接副词 , where, why, 等。主语从句使用陈述语序,其通常结构为“主语从句(连接词 +主语+谓语)+ 主语 + 谓语 + 其他成分”。练:(1) we shall be late is certain.(2) it will do us harm remains to be seen.(3) comes in first will receive a prize. (无论谁)(4) I say is very important.(5) 无论你做什么都是对的.(6) I spend my summer holiday is still unknown. (哪里)四.注意事项1.it 作形式主语引导主语从句。Eg:1) It is important that he should know about this.2) It’s a pity that he didn’t come.3) It turns out that they failed in the competition.4) It is said that President Obama will visit our school next week.[归纳]有时为避免句子头重脚轻,常用 it 作形式主语,代替主语从句放在句首,而把主语从句置于句末。主句谓语动词常用单数形式,常用句型有①It+be形容词 + that 从句, 如句1),It’s important/natural/obvious/impossible/strange…that…②It + be + 名词 + that 从句, 如句 2),It’s a pity/ a fact /good news/ ...

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Unit 4 Astronomy the science of the stars Grammar(学生版)

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