在一个阳光明媚的下午，一只饥饿的狐狸在森林里漫步。
突然，他的眼睛被一串串亮晶晶、诱人的葡萄吸引住了。
那葡萄挂在一座高高的葡萄架上，看上去又大又甜。
狐狸口水直流，他想：“要是我能吃到这些葡萄，该有多好啊！”
于是，他跳起来试图去摘那些葡萄。
可是，无论他怎么跳，都够不着。
他试了一次又一次，还是失败了。
看着那串串葡萄，狐狸感到非常沮丧。
他坐在地上，失望的看着葡萄架。
过了一会儿，他站起身来，自言自语的说：
“嗯，我想这些葡萄还没有熟透吧，它们肯定很酸。”
然后，狐狸摇摇头，走开了。
他边走边对自己说：“我可不想吃那些酸葡萄。”
其实，狐狸心里知道，他只是因为摘不到葡萄，才找了个借口而已。
这个故事告诉我们：有时候，当我们做不到一件事情时，我们可能会找个借口来安慰自己。
就像这只狐狸，他知道自己摘不到葡萄，就告诉自己葡萄是酸的，这样他就不会那么难过了。
但是，我们要记住，面对困难，我们应该勇敢的去尝试，而不是轻易放弃。
On a sunny afternoon, a hungry fox was strolling through the forest.
Suddenly, his eyes were drawn to a bunch of shiny, tempting grapes hanging from a tall grapevine.
The grapes looked big and sweet from where he stood.
The fox's mouth watered as he thought, "How wonderful it would be if I could eat those grapes!"
So, he jumped up, trying to reach for the grapes.
But no matter how high he jumped, he couldn't quite get them.
He tried again and again, but failed every time.
Looking at the bunches of grapes, the fox felt very frustrated.
He sat on the ground, looking disappointedly at the grapevine.
After a while, he stood up and said to himself,
"Well, I guess these grapes are not ripe yet. They must be sour."
Then, the fox shook his head and walked away.
As he walked, he told himself, "I don't want to eat those sour grapes anyway."
In fact, the fox knew deep down that he was just making an excuse because he couldn't reach the grapes.
This story teaches us: sometimes, when we can't do something, we might make an excuse to comfort ourselves.
Just like this fox, he knew he couldn't reach the grapes, so he told himself they were sour, so he wouldn't feel so bad.
But we should remember, when facing difficulties, we should bravely try instead of giving up easily.
