She is very tall ,as is her mother.非限制定从 as不是领导前面整个句子吗那不就是她很高这件事 is her mother不是说不通吗书上说是非限制定从作表语 不懂为什么不是 as her mother is

Question

She is very tall ,as is her mother.
非限制定从 as不是领导前面整个句子吗
那不就是她很高这件事 is her mother不是说不通吗
书上说是非限制定从作表语 不懂
为什么不是 as her mother is

Answer 1

一般我们as引导非限制性定语从句时,
它指代的是上文提及的整个句子.在定语从句中可作,主语、表语、宾语等.
She is very tall , as is her mother.
这个句子中as不是指代一个句子,指代的是very tall,
即：her mother is very tall.
那么,as就是作表语了,不是定语从句作表语,定语从句本身就是定语从句了.