英语语法系之状语从句简化（独立主格从此登场）
重点：所谓的独立主格，就是状语从句简化后的产物！不管是同位语还是独立主格都是人们为了高效交流而简化句子的结果！！独立主格从此登上英语舞台！并不是所有的状语从句简化后都会变成独立主格！
时间状语从句
After the meeting was over, all of us went home. 会议结束后我们都回家了。
简化
The meeting being over, all of us went home. 开完会后我们都回家了。
简化过程
①去掉状语从句连接词 after，时间逻辑是人的基本逻辑，没有after,读者也能读出时间先后。↓
the meeting was over, all of us went home.
②去掉the meeting↓
was over, all of us went home.
③此时从句成了悬垂结构↑，即从句没有主语，从句与主句的主语又不是一个。从句的意思产生了模糊，句子出现原则性错误。所以我们不能省略the meeting,将它请回来！↓
the meeting was over, all of us went home.
④was虽然是联系动词，但在从句中撑起了谓语部分。纵观我们以前的简化，不管是名词从句简化，还是形容词从句简化，都是将一个句子简化成为一个短语，状语从句简化也不例外！因此我们只能将动词短语（was over）转变成其他词性短语！！↓
词性：was over（动词短语）→being over（现在分词短语，形容词性）
⑤此时的being over 具有形容词性正好修饰主语 the meeting。↓
the meeting being over, all of us went home.
⑥此时being的意思与was的意思并无太大差别，只是being是形容词性。由此时间状语从句After the meeting was over 转变成了时间状语短语 the meeting being over。这也就是我们常说的独立主格！↓
The meeting being over, all of us went home.
开完会后我们都回家了。
当时间状语从句与主句同时发生时，经过我们的简化就出现了一种形式，传统语法将其称之为伴随状语！！！！伴随状语下回说！
时间状语从句简化后也有其他形式，比如不定式或动名词短语或介词短语！！
Row of businessmen and women with paperwork in.
条件状语从句
If the condition is favourable, he may succeed.若条件有利,他或许能成功。
简化
The condition being favourable, he may succeed. 若条件有利,他或许能成功。
简化过程
①去掉If↓
The condition is favourable, he may succeed.
②the condition不能动！↓
The condition is favourable, he may succeed.
③谓语短语转换词性
词性：is favourable（动词短语）→being favourable（形容词短语）
④being favourable修饰the condition.条件状语从句 If the condition is favourable，转变成了条件状语短语The condition being favourable↓。
The condition being favourable, he may succeed. 若条件有利,他或许能成功。
条件状语从句简化后也有其他形式，比如不定式或动名词短语或介词短语！！
原因状语从句
He wrapped her up with great care because the night was dark and frosty. 夜又黑又冷,所以他把她裹得严严实实的。
简化
He wrapped her up with great care, the night being dark and frosty. 夜又黑又冷,所以他把她裹得严严实实的。
简化过程
①去掉because↓
He wrapped her up with great care, the night was dark and frosty.
②is dark and frosty（动词短语）→being dark and frosty（形容词短语）↓
He wrapped her up with great care, the night being dark and frosty. 夜又黑又冷,所以他把她裹得严严实实的。
原因状语从句简化后也有其他形式，比如不定式或动名词短语或介词短语！！
让步状语从句
Though she worked so hard, she failed again.
简化
Working so hard ,he failed again.
简化过程
Though she worked so hard, she failed again.
①去掉though↓
she worked so hard, she failed again.
②去掉she,因为和主句的she重复了！↓
worked so hard, she failed again.
③worked是动词，不能做句子开头，不能单独带领句子！需转变词性！↓
词性：worked so hard（动词短语）→working so hard（动名词短语）
④让步状语从句 Though she worked so hard转变成了让步状语短语 working so hard.↓
Working so hard, she failed again.
让步状语从句简化后也有其他形式，比如不定式或独立主格或介词短语！！
地点状语从句
How did you know where you can find me ?
你怎么知道在哪里可以找到我？
简化
How did you know where to find me ?↓
你怎么知道在哪里可以找到我？
简化过程
How did you know where you can find me ?↓
How did you know where you are able to find me ?（can=be able to）
①where在句中作用较大，去掉后句意会发生巨大改变，这不是我们简化的宗旨，所以不能去掉。↓
How did you know where you are able to find me ?
②去掉you↓，与主句的you重复！
How did you know where are to find me ?
③去掉are，be 动词是联系动词，无实际意义！↓
How did you know where able to find me ?
④去掉able↓，为了简化人们将able的部分意思赋予了to，此时的to 不是介词to。此时的to find就是able to find，也就是can find。
How did you know where to find me ?
地点状语从句简化后还有其他形式。
目的状语从句
I came here in order to ask some question.
简化
I came here to ask some question.
目的状语简化后还有其他形式。