在历史的长河中，有许多英雄人物的故事流传至今。《投笔从戎》便是这样一则充满传奇色彩的故事。它讲述了一位原本以文为生的人，最终选择弃文从武，投身于保家卫国的行列之中。这种精神和勇气值得我们学习和传承。

以下是这篇故事的原文及其翻译：

原文：

昔有一人，名曰张衡，字平子，南阳西鄂人也。少善属文，游于京师，因以文名。然其志不在文，而在武。常谓友人曰：“大丈夫当投笔从戎，立功边塞，以扬国威。”后闻边患频仍，遂弃文就武，入军营习兵法。数年之后，以其智勇双全，屡建奇功，终成一代名将。

翻译：

Once upon a time, there was a man named Zhang Heng, with the courtesy name Pingzi, from Xihuo in Nanyang. In his youth, he excelled at writing and traveled to the capital city, gaining fame for his literary talent. However, his aspirations lay not in literature but in military affairs. He often told his friends, “A true man should abandon pen for sword, achieve glory on the frontier, and enhance the nation’s prestige.” Later, hearing of frequent border troubles, he abandoned his literary pursuits to join the military, studying military tactics. After several years, his wisdom and bravery earned him numerous victories, eventually making him a renowned general.

阅读理解题：

1. 张衡为何决定弃文从武？

答：张衡认为大丈夫应当投笔从戎，立功边塞，以扬国威。他渴望通过军事行动来实现自己的抱负。

2. 张衡在军中的表现如何？

答：张衡凭借其智慧与勇气，在军中屡建奇功，最终成为一代名将。

3. 这个故事告诉我们什么道理？

答：这个故事告诉我们，一个人应该根据自己的理想和抱负选择适合的道路，并且坚持不懈地努力，才能取得成功。

以上就是《投笔从戎》的故事及其翻译和阅读理解题的答案。希望大家能够从中汲取力量，勇敢地追求自己的梦想。