为什么要用定语后置?

来源:百度知道 编辑:UC知道 时间:2024/06/28 12:28:47
—What are on show in the museum?
--Some photos ( )by them.
A.were taken B.taken

答案选B,知道是定语后置,但在这里为什么不能看作是被动语态?
还有,定语从句和定语从句是一样的吗?可以互换吗?所有的定语从句都可以写成定语后置吗?

实际上这个完整的回答是:There were some photos taken by them.如果选A的话:There were some photos were taken by them,则两个句子糅合在一起了,当然错了啊.
定语从句相当与形容词,主语从句相当于名词.

好象是省略that的主语从句