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1、主语从句,郁南县连滩中学 李梅芳,主语从句定义： 主语从句是在复合句中充当主语的从句，其功能同名词一样。,引导主语从句的关联词有： （1）从属连词that, 不能省略。 That she left him made him heart-broken. （2）从属连词whether Whether hell take part in the play is clear. （3）连接代who,whom,whose,what,which,whoever, whatever,whichever,连接副词when,where,how,why What she did is not yet known.
2、Whoever comes is welcome. How she can keep healthy is a secret.,在主语从句中，谓语动词一般用单数。 Where we will get together has not been decided. 但谓语动词用单数还是复数，不可一概而论，而要视句子的意义而定。 What I need is money. What I need are books.,如果由and连接两个或两个以上的主语从句作主语时，谓语动词用复数；有两个或多个连接词 引导一个主语从句时，谓语动词用单数。 When they will start and where
3、 they will go have not been decided yet. When and where the meeting will be held has not been decided.,what 与that 在引导主语从句时的区别 What在引导主语从句在从句中充当句子成分，如主语、宾语、表语，而that 则不然。 What she said yesterday is right. That he is still alive is consolation., it 做形式主语 It做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 。,It is s
4、till a mystery what caused the accident.,（1）It + be + 名词 +（主语）从句,用it作形式主语的句型,（2）It + be + 形容词 +（主语）从句,It is a fact that 事实是 It is an honour that 非常荣幸 It is common knowledge that 是常识,It was an honour that I was invited to the party.,It is natural that 很自然 It is strange that 奇怪的是,It was strange that h
5、e should fail in the exam.,（3）It+不及物动词+（主语）从句,（4）It过去分词从句,It seems that 似乎 It happened that 碰巧 It appeared that 似乎,It seems that he has seen the film.,It is reported that 据报道 It has been proved that 已证实 It is said that 据说 It is decided that 决定 It is believed that 相信 It is known that 众所周知,It is said
6、that President Obama will visit our school.,填空练习： 1) _ the meeting will be held next week hasnt been decided yet. 2) _ the plan will be carried out is still unknown. 3) _ the building of the car factory will be started hasnt been decided yet. 4) _ team will win the match is still unknown. 5) _ we need is more time. 6) _ we can arrive at the airport before 8 oclock is still a question.,Where,When,When,Which,What,Whether,Thank you very much.,
