as it is

as it is = 实际上；副词as it is:
1. in the actual state of affairs and often contrary to expectations

例句与用法:
1.I hope things would get better, but as it is they are getting worse. 我希望情况会好转，但实际上是越来越糟。
2.I have to leave it as it is. =我只好随它去了。
3.He isn't nice. As it is, he is bad. = 他不好。事实上，他很坏。
4.This room is as broad as it is long. =那个房间长宽相等。
5.I don't like him. As it is, I hate him. =我不喜欢他。事实上，我恨他。
6.Be that as it may, I'll leave it as it is. =无论如何我们也只能听其自然。
7.As it is, we can hardly get to the station by 6 o'clock. =但事实上, 我们几乎不能在六点以前赶到车站。
8.I thought he would get better. As it is, he is getting worse. =我以为他会变好。但事实上，他愈变愈糟。

http://dict.cn/search/?q=as+it+is+

没区别
as is 后面加过去分词时候，前面的is可以省略也可以不省略

sf谁能说说着两中情况有什么区别？