such ... as 与 such as 有什么不同？两个as 的词性是？

Question

such ... as 与 such as 有什么不同？两个as 的词性是？

Answer 1

such as中的as一般只视为介词，类似于like的用法，其后加名词性成分，表示不完全例举。

如：I have many friends, such as Tom, Lucy and Mike.

such...as...中的as一般有两种用法。

1）as做介词（此时 such...as... = such as...）

如：I want to be such a scientist as Yuan Longping.

我想成为袁隆平那样的科学家。

2）as做连词（引导从句）

如：I don't like such books as he recommended.

我不喜欢他推荐的那些书。