推荐回答（1个）
分类: 文化/艺术
问题描述:
刮目相看的成语故事以及意思
解析:
士别三日，即更刮目相看。《三国志》
《三国志·吴志·吕蒙传》
相关：吴下阿蒙
吕蒙是三国时东吴的大将军，非常的有谋略；火烧赤壁的时候，刘备不仅“借 ”走了荆州，还娶走了孙权的妹妹，让孙权和周瑜“陪了夫人又折兵。”后来关羽守荆州，为了扩张势力，北上打曹操，被吕蒙逮住了机会,抄了他的后路，终于让关羽败走麦城，帮孙权夺回了荆州，俗话“大意失荆州”由此而来。就是这样一个人，开始的时候是个大老粗。
吕蒙小的时候家里很穷，靠姐夫接济，没有机会读书，后来跟着姐夫打帐很勇敢，最终得到了孙权的赏识。目不识丁的他以为凭勇敢就能打天下。有一次。孙权很认真地对吕蒙说：“你现在是国家的栋梁，要好好读书啊“。 吕蒙嘻皮笑脸的回答说：“我现在整天打仗，忙得很呢，哪里有时间读书啊，哈哈。” 孙权很严肃：“我这个当国王的要比你还忙吧？我读了那么多书还嫌不够用，现在还抽空读许多史书和兵书，很有好处啊。你看现在曹操 这么老了，还很好学呢，你可不要把我的话当玩笑啊。”
从这时候开始，吕蒙下定决心，一有空就读书，学识长见得很快。有 一次，当时的大知识分子鲁肃和吕蒙一起讨论国家大事，鲁肃常常 被吕蒙问得不知道该怎么回答。鲁肃很高兴地轻轻地拍拍吕蒙的背说：“以前我 以为你这个大老粗只是在军事方面有本事，现在才知道你学问很好啊， 看法独到，你再也不是以前吴下（吴国）的那个阿蒙了！” 吕蒙很自信地笑着说：“士别三日，当刮目相看，你怎么能用老眼光看我呢，哈哈。”
这就是成语吴下阿蒙和刮目相看的由来，“吴下阿蒙”以后有两种用法，用意相反，一个是称赞别人进步很快；另一个则谦虚地比喻指自己毫无长进。
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