as作为后面加什么词性的词

as是一个英语单词，连词、副词、介词，作连词时意思是“因为，由于；在......时，随着；以……的方式，像；正如；虽然，尽管”，作副词时意思是“如同，像……一样”，作介词时意思是“作为；以……身份；当作；像，如同；当……时”。

She used her family\'s history as a base for her novel.

她以她的家族史作为小说的素材。

My new job is much the same as the old one.

我的新工作和旧工作差不多。

Take as much time as you like.

你想花多少时间就花多少时间。

Research will be needed as a preliminary to taking a decision.

作出决定之前需要进行研究。

This year\'s results are virtually the same as last year\'s.

今年的结果几乎和去年的一样。