那个开头 我没瞧见 就这么写吧：
There exists such a problem that the physical condition of most students is declining suddenly,such as this phenomenon that more and more students is asking for sick leave.(存在一个如此的问题,大多数学生身体素质下降比如请病假的现象越来越多)
According to the survey,the time students spend on academic task is so long that they have little time to exercise.（根据调查,学生花在学习上的时间太多至于没时间锻炼）
The majority of students participate in some physical activities less,such as labour ourdoors ,and housework .（大多数学生参加的体力活动太少,诸如在外劳动 做家务的活动）
What's more,the vital point,I think,is that they don't eat a balanced diet.（再有,我认为最重要的一点就是他们没有均衡饮食）
Finally,it is suggested by the experts that students should strike a good balance between work and rest,do sports 1 hour a day,eat more fruits and vegetables,no junk foods.（最后呢,专家建议劳逸集合,每天1小时锻炼,多吃蔬菜水果杜绝垃圾食品）
