分析下这句话的语法A radio message from the mainland had been received by the ship's captain instructing him to give up the search.我看不懂句子结构啊!这是新概念英语课文的句子
问题描述：
分析下这句话的语法
A radio message from the mainland had been received by the ship's captain instructing him to give up the search.
我看不懂句子结构啊!这是新概念英语课文的句子
答
A radio message （ 主语）from the mainland （介词短语作定语） had been received (过去完成时被动语态 作 谓语） by the ship's captain （ 介词短语 状语,强调动作由谁来做） instructing him to give up the search （ 分词短语作状语）.