There to be & there being
Because there was no further business, we decided to go home .
There being no further business, we decided to go home .
For there to be a bus station , it is a great advantage to us.
As/ Because there is a ….

It 句型
末端中心
末端重心
已知信息
新信息
分裂句的本质
I gave him a book.
It was a book that I gave him.

并列结构
Both… and 只连接词与词组
Not only … but also; either …or ; neither…nor 不但连接词与词组，还可连接句子
Both..and , not only…but also 必须连接对等结构
either …or ; neither…nor可连接不对等结构
I neither like novels nor (like) poems.