假如你叫李华，你校正在展开一场专题讨论：初三学生要不要参加体育锻炼？请根据以下信息给《英语报》初三版写封信，介绍讨论情况。

注意：1．信的开头和结尾已为你写好（不计入总词数）。

2．参考词汇：editor n．编辑         reduce vt．减少           brain n．大脑

effective adj．有效的

3．词数：80词左右。

Dear Editor，

I'm writing to tell you about a discussion we've had about whether students of Junior 3 should take exercise．

Yours，

Li Hua

1、Dear Editor，

I'm writing to tell you about a discussion we've had about whether students of Junior 3 should take exercise．55%think they should take exercise every day such as doing morning exercises，playing ping-pong or playing basketball，but it shouldn't take up too much time．Doing exercise is good for us to keep healthy and reduces the chances of becoming ill．Sports allow their brains to rest 80 that their study will be mote effective．

On the other hand，45% believe taking exercise is a waste of time and tiring．After sports，they are too excited to study in a short time．It's also possible to get injured．

Yours，

Li Hua