中华传统
At one's wit's(智慧)end
导读：同学们，中国寓言里也有许多和动物有关的故事。这些故事短小精悍，蕴含着深刻的道理。读一读下面的故事，看看你们能否领悟其中的道理。
Long long ago, in ancient China, there were no donkeys in a place called Qian. One day, a man brought a donkey from somewhere by boat. He found the big animal was useless(无用的)indeed, so he tied it to a tree at the foot of a hill.
A tiger happened to see the donkey, and thought it must be a monster(怪物). It dared not to get close to it and watched the donkey behind a tree.
When the donkey brayed, the tiger was frightened(害怕的), thinking that the donkey was going to bite it. But to its surprise, the donkey did not move at all after the shout.
After a while, the tiger went close to it and teased(戏弄)it. The donkey became angry this time and kicked(踢)the tiger.
The tiger thought to itself, "That's all you can do?" It then jumped on the donkey and enjoyed a wonderful meal.
This idiom is used to mean someone has used up his skills.
我来试试
根据故事内容回答问题。
同学们，你们知道由这个寓言故事引申而来的成语是什么吗？

阅读小帮手
“中华传统”译文：
很久很久以前，在古代中国，黔这个地方是没有驴的。有一天，一个人用船不知从哪里运来一头驴。他发现这只庞然大物其实没什么用，于是把它系在了山脚下的一棵树上。
一只老虎刚好看到了这头驴，觉得它肯定是个怪物。它不敢靠近驴，而是在一棵树后暗中观察这头驴。
驴一叫，老虎害怕极了，以为驴要咬它了。但令它惊讶的是，驴除了叫唤别的什么都没有做。
不一会儿，老虎便接近它，戏弄它。这一次驴很生气，踢了老虎一脚。
老虎暗想：“这就是你全部的能耐了吗？”于是它扑上去美美地享受了一顿大餐。
这则成语用来形容某人已用尽其所能。
文言文版(仅供参考)：
黔无驴，有好事者船载以入。至则无可用，放之山下。虎见之，庞然大物也，以为神。蔽林间窥之，稍出近之，慭慭然，莫相知。
他日，驴一鸣，虎大骇，远遁，以为且噬己也，甚恐。然往来视之，觉无异能者。益习其声，又近出前后，终不敢搏。稍近益狎，荡倚冲冒。驴不胜怒，蹄之。虎因喜，计之曰：“技止此耳！”因跳踉大㘎，断其喉，尽其肉，乃去。

黔驴技穷

这是出自《黔之驴》的寓言故事，由此引申出的成语是“黔驴技穷”，该成语的含义与文中“someone has used up his skills”表述一致。