1)How do you account for that fat woman getting out of the crowd so fast?
I don't know. ——unless it was the survival of the fattest.
2)Old hen: Let me give you a peice of good advice.
Young hen: What is it ?
Old hen: An egg a day keeps an ax away.
3） A company is known by the men it keeps.

4) " You are not eating your fish" the waitress said to him.
" Anything wrong with it ?"
" Long time no sea," the waitreess replied.

要求; 翻译并说出它们的幽默所在。

1）你说说看，那个胖女人为什么这么快就逃出人群？
不知道，也许是“胖者生存吧”
注意：这里是the survival of the fittest：适者生存--这个俗语的巧妙变形。把fittest变成fattest来造成笑果。

2）老母鸡：我给你一个建议
小母鸡：什么建议？
老母鸡：要想保平安，一天一个蛋！

3） A company is known by the men it keeps.
同样是一句谚语的变形：A man is known by the company he keeps：观其交友，知其为人。---这里可能是，将company意思转成“公司”，看一家公司就看它的员工。

4）你这句有错误，最后" Long time no sea," the waitreess replied.--应该是the customer replied

您没有吃鱼？-侍者问道，是不是有什么问题？
顾客回答：这鱼可好久都没海了。。（也就是鱼不新鲜了）---同样是long time no see的变形。