阅读下面这首诗，回答问题。(8分)
黄　州
陆　游
局促常悲类楚囚^①，迁流还叹学齐优^②。
江声不尽英雄恨，天意无私草木秋。
万里羁愁添白发，一帆寒日过黄州。
君看赤壁终陈迹，生子何须似仲谋^③！
[注] ①楚囚：本指被俘的楚国人，后指处境窘迫之人。②齐优：齐国取悦于人的优伶。③仲谋：即孙权，据说曹操攻吴时见孙权军队很整齐，于是叹说：“生子当如孙仲谋。”
“江声不尽英雄恨，天意无私草木秋”一联采用了什么表达技巧？请简要分析。(4分)
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“生子何须似仲谋”一句化用前人语句，寄予了诗人怎样的思想感情？(4分)
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