1.英语作文：70%的同学喜欢做户外运动,因为他们认为这有助于健康

Nowdays, the problem of outdoor sports has been brought into students' focus.People's views on this problem vary from person to person.70 percentage of students like outdoor sports,the hold the view that it is conducive to health and can widen the vision.30 percentage of student don't agree with them and hold different view.They prefer doing indoor sports rather than outdoor sports.The think that doing indoor sports can save time and can help you better study.As far as I am concerned,I agree with the most people.As we all know,good health is the source of study.Outdoor sports is a kind of aerobic exercise.Doing outdoor sports can keep ourselves full of prunes so that I can have enough energy for better study.

To sum up,it is necessary for us to do some outdoor sports.