like as引导从句上的区别

“像”
1、as作连接词.她引导比较状语从句和方式状语从句,而且这两种从句通常为省略句.例如：
She is a fine singer,as her mother used to be.
There is as much water in this cup as in that one.
2、like作介词.例如：
My sister isn''t much like me.
The robot can''t work like man.
“正如.”
1.as作关系代词或关系副词、引导定于从句.
as 在这样的句子里指全句所谈到的内容,引出非限制性定于从句,在从句中一般做主语或宾语.例如：
Metals have many good properties,as has been stated before.
As we said before,you have done a good job.
2.like作介词.
She,like thousands of others,is fascinated by this work.