求一篇英语课前演讲ppt，给我文章内容也可以，需要幽默搞笑的，大概带翻译10分钟左右！~

One day, a teacher took his pupils to a chicken farm to pay a visit. When they came near the incubator, chick just got out of its egg shell.
一天，老师带学生到养鸡场参观，当他们走近孵化器时，刚好一只小鸡破壳而出。
It's wonderful to see a little thing come out from the egg shell, isn't it？ the teacher said.
“看见一个小生命从蛋壳里出来，岂不是很奇妙的吗？”老师说。
Yes, sir. said one of the boys, but it would be more wonderful if we knew how a chick gets in to its eggs hell before hand.
“是的，老师。”一个男学生说，“可是，如果我们知道它是怎样事先钻进蛋壳里的那就更奇妙了。”