Question

China is a developing country，---- is known to all as 和 which 用哪一个 为什么

Answer 1

China is a developing country，( as) is known to all

大家都知道，中国是一个发展中国家

as is known to all通常是句首语，起到引导下面内容的作用；
which is known to all通常是一个定语从句，跟在某一句子或者某个词后面，起到解释说明的作用

As is known to all, China ....意思是：众所周知的是，中国是一个发展中的国家

而Which is known to all, China is ....意思是：就如大家都知道的，中国是一个发展中的国家

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追问

这句话是非限定定语从句呀，我就是搞不清as和which的区别 ， as 和which都可以带前面的句子
为什么这里只能用as ， as在引导非限定定语从句时，可在句首 ，居中和句尾

追答

As is known to all 是固定用法

追问

the weather turned out to be good ，—————— was more than we had expected 。
the weather turned out to be good ，—————— was we had expected 。
这2咋填

追答

the weather turned out to be good ，(which) was more than we had expected 。

the weather turned out to be good ，(as )was we had expected 。天气变好了，这正是我们所预料的。

如果带有”正如.......那样”之意用as
第一句没有”正如.......那样”， 所以用which

Answer 2

应该用which才对，用as根本讲不通，而且这种形式经常见到，什么怎么样，which is 怎样啊

追问

不对正确答案是as

追答

好吧，这个好像没看过。。看来自己还要再继续努力

Answer 3

非限制性定语从句，用which