Question

as soon as 和as soon as possible的区别是什么？

used to 和be used to 有什么区别，用法是什么?

Answer 1

1）as．．．as possible意为"尽可能……"，"愈……愈好"。也可以说成as．．．as one can。可根据需要，在两个as之间使用不同的形容词或副词。
（2）as soon as possible可解释为 very soon，意为"尽快"，也可以说成as soon as one can。

as soon as的用法：

（1）、as soon as one can

= as soon as possible 表示“尽可能快”之意，如：

① You must ring me up as soon as you can.
你必须尽快给我打电话。

② Please write to me as soon as possible.
请尽早给我写信。

（2）、as soon as 引导时间状语从句，表示“一……就……”。如果主句用将来时或情态动词或祈使句，从句必须用一般现在时代替将来时。如：

I’ll tell him the news as soon as he comes.
他一来我就告诉他那消息。

She may come as soon as she finishes the work.
事情一做完她就可以来。

Answer 2

as soon as 表示当……时
as soon as possible 表示 尽快 的意思
used to 表示 过去常做某事，跟动词原形
be used to + doing sth.表示习惯做某事

Answer 3

前者是指立刻马上的意思，肯定的语气，后者的意思是尽可能快，并不完全肯定的语气。