初中英语介词知识点：介词短语的句法作用

介词短语相当于一个形容词或副词,可用作状语、定语和表语。如：The man came down the stairs .(状)(那个人走下楼来)/The woman with a flower on her head is from the countryside.(定)(头上戴花的妇女来自乡下)/The teacher is now with the pupils.(表)(老师现在和学生在一起)