The Wolf in the Sheep's Skin

    A wolf once decided¹ that if he disguised himself，he would be able to get plenty to eat without being hunted and shot at wherever he went．So he wrapped himself up in a sheepskin and slipped in among a flock of sheep that were feeding nearby．He stayed with them all day，pretending to nibble² the grass as they did and when evening came he was locked up in the fold with them．He was just about to take one of the sheep for his supper when he heard footsteps coming towards him．The shepherd had also decided to have a sheep for his supper and，taking out his long knife，he killed the biggest one he could see．You can imagine how surprised he was when he took off the fleecy wool and found a large，grey wolf lying dead inside．By chance the shepherd had chosen him from all．The wolf's disguise had been just a little too perfect！
    Pretending to be something you are not may get you into trouble．Exercises：
    回答下列问题：
    ① Why did the wolf decide to disguise himself？
    ② At last，what happened to the wolf？

1 decided   

adj.决定了的，坚决的；明显的，明确的

参考例句：

• This gave them a decided advantage over their opponents.这使他们比对手具有明显的优势。
• There is a decided difference between British and Chinese way of greeting.英国人和中国人打招呼的方式有很明显的区别。

2 nibble   

n.轻咬，啃；v.一点点地咬，慢慢啃，吹毛求疵

参考例句：

• Inflation began to nibble away at their savings.通货膨胀开始蚕食他们的存款。
• The birds cling to the wall and nibble at the brickwork.鸟儿们紧贴在墙上，啄着砖缝。