介词短语作定语还是同位语

2 介词短语作定语还是同位语

Dujiangyan, located on the Minjiang River in the west of Chengdu Plain, about 50km away from Chengdu City, was built in the third century BC.

about 50km away from Chengdu City=which is about 50km away from Chengdu City

请问老师这部分是作后置定语修饰Chengdu Plain吗？还是同位语？同位语可以是介词短语吗？

1 条评论
分类：介词用法

最佳答案 2022-05-12 21:26

Dujiangyan, located on the Minjiang River in the west of Chengdu Plain, about 50km away from Chengdu City,was built in the third century BC.
【1】 located on the Minjiang River in the west of Chengdu Plain为过去分词短语作后置定语，修饰前面名词“Dujiangyan”

备注：过去分词作后置定语相当于定语从句“which is located on the Minjiang River in the west of Chengdu Plain”

【2】about 50km away from Chengdu City,为介词短语作后置定语，修饰前面名词“Dujiangyan”

备注：介词短语作后置定语相当于定语从句“which is about 50km away from Chengdu City”

【3】句子主干成分：Dujiangyan【主语】// was built 【谓语动词】//in the third century BC【时间状语】.