英语作文：学生要不要参加体育锻炼。急

Should students take part in sports activities?
Recently, a discussion on whether we should take part in sports activitieshas been popular in our school. Most of the student support it,but some students think that it is a waste of time and we may get injured in the process.
In my opinion, it is very necessary for us to take part in sports activities. First, by doing some sports,like playing football,pingpong and so on, we can relax ourselves from concentrating a long time on class,.It's no doubt that when we get back to study, we can study better. Second, doing sports is good for our health, so we will be unlikely to fall ill.
Third, doing sports can help us form a new hobby, like swimming, hiking and so on , in this way , our life will be more colorful.

70%的学生
30%的学生
应该每天进行体育锻炼，但不要时间过长
锻炼浪费时间、使人疲劳
锻炼能增强体质，保持健康
锻炼以后很兴奋，较长时间不能投入学习
锻炼能使大脑休息，使学习效果更好
锻炼中可能会受伤
要求：语句通顺，句意连贯；词数为80词左右；发言稿的开头已写好，但不计入总词数。
Dear classmates:
I’m Li Hua After the discussion we found that 70% of the students think they should take all kinds of exercise every day but not spend too much time. They think exercise builds body and can keep them healthy. Sports also let them have a good rest so that their study will be more effective.
On the other hand 30% students believe taking exercise is tiring and it’s a waste of time. They say that after having sports they are too excited for a long time to focus on their lessons. And it’s possible to be hurt while doing sports.

要参加锻炼，必须参加！以为现在的我们都要注重身体健康，锻炼有助于身体的放松和大脑的运转！