1. as soon as 一……就
He called me up as soon as he came back to Beijing.
Please call me as soon as you finish your homework.
2. not as/so ……as 和……一样；不如
I think English is as important as math
For me, basketball is as interesting as football.
3. as……as possible 尽可能的
Kids in the West usually get ready for as many gifts as possible.
We should speak English as much as we can in class.
