我需要几篇英语演讲的短篇 仔细看问题补充说明

Another Chance

A football coach walked into the locker room before
a game, looked over to his star player and said, "I'm
not supposed to let you play since you failed math,
but we need you in there. So, what I have to do is
ask you a math question, and if you get it right, you
can play."

The player agreed, so coach looked into his eyes
intently and asked, "Okay, now concentrate hard and
tell me the answer to this. What is two plus two?"

The player thought for a moment and then answered, "4?"

"Did you say 4?" the coach exclaimed, excited that he
had got it right.

Suddenly all the other players on the team began screaming...,
"Come on coach, give him another chance!"

笑话的主要内容是什么?主题要表达什么?