什么是伴随状语从句

1、伴随状语从句:用with引导的话,表示在进行一项动作的同时在进行另外一个动作,后面用名词+介词短语,或者直接用动词ing形式.如:The teacher came into the classroom,with books under her arm.She came here,with running。

2、复合结构就是用一些介词,副词来引导的句子,比较起简单句说有点复杂而已.如 she not only passes the exam but also get a high mark.用with的话,如 with his help,she get a high mark.其中with his help不过是一个状语成分,作条件讲。