英语翻译On the first day of class,Mr.Whiteson gave us a lecture

英语翻译
On the first day of class,Mr.Whiteson gave us a lecture about a creature(生物) called cattytiger,a kind of cat-like animal that completely disappeared during the Ice Age.He passed round a skull (头骨) as he talked,and we all felt interested and took notes while listening.Later,we had a test about that.
When he returned my paper,I was very,very surprised.There was a very large cross through each of my answers.And so it was with everyone else's in our class.
What had happened?Everyone was wondering and couldn't wait to get the answer.
Very simple,Mr.Whiteson explained.He had made up all that story about the cattytiger.There had never been such an animal.So why none of us noticed that and how could we expect good marks for the incorrect answers?
Needless to say,we got very angry.What kind of teacher was this?
We should have guessed it out,Mr.Whiteson said.After all,at the very moment he was passing around the cattytiger skull (in fact,a cat's),hadn't he been telling us that it completely disappeared during the Ice Age?Clearly he was telling a lie.But we just kept busy making notes and none used his head.We should learn something from this.Teachers and textbooks are not always correct.

上课的第一天,怀特森先生给我们做了一次演讲是关于一个称为cattytiger的生物的,这是一种猫科动物,在冰河时代就灭绝了.他一边说一边给我们传看一副头骨,我们都很感兴趣并边听边做了笔记.后来,我们有一个关于这个动物的测试,
当他发回我的试卷时,我非常惊讶.我的每一个答案上都画了个大叉.我们班上其他人的试卷也是这样.
发生了什么事?每个人都想知道,迫不及待的想知道答案.
这件事很简单,怀特森先生解释到.关于cattytiger整个故事都是他捏造的.从来都没有这样一种生物.那么为什么没人注意到这件事,你们又怎能期待你们的错误答案得到高分呢?
不用说,我们都很生气,这是怎样的老师呀?
我们应该可以猜到,怀特森先生说.毕竟,在那一刻他传递了cattytiger头骨(事实上是一只猫的),难道他没有告诉过我们,它完全消失在冰河时代了?显然他在撒谎.但我们就一直忙着做笔记没有人用脑思考一下.我们应该从这件事学习到一些东西.老师和教科书并不总是正确的
非机器翻译,