写作思路：从文章的写作目的、中心主旨入手，以使文章中心思想鲜明、深刻地表现出来，正文：
Long term study and self-conscious practice of physical education can enhance physical fitness and improve health level. Strengthening physique and developing intelligence are inseparable. Good physical condition is the material basis for carrying out intellectual activities. If the physique is enhanced, one can study energetically and master scientific knowledge effectively.
长期体育课的学习和自觉练习，能增强体质，提高健康水平。增强体质和发展智力两者密不可分，良好的身体条件是进行智力活动的物质基础，体质增强了，就能精力充沛地学习，有效地掌握科学知识。
The study of physical education can make the mental activity and physical activity alternate, and play an effective regulatory role, so as to eliminate the fatigue of the brain and improve the learning efficiency of other subjects.
体育课的学习，能使大强度的脑力活动与体力活动交替进行，起到有效的调节作用，从而有利于消除大脑的疲劳和提高其他学科的学习效率。
The study of physical education can better grasp the basic knowledge of physical health and the skills and methods of scientific physical exercise, and benefit lifelong. Be able to receive good education in ideology and morality. They should have a sense of social responsibility and group consciousness to exercise for the motherland and the society, enhance the sense of organizational discipline and collective honor, form the interest and habit of regular physical exercise, and exercise the spirit of bravery, tenacity, vigor and hard work.
体育课的学习，能更好地掌握体育卫生基本知识、科学锻炼身体的技能和方法，终身受益。能在思想品德方面受到良好教育。具备为祖国、为社会锻炼身体的社会责任感和群体意识，增强组织纪律性和集体荣誉感，形成经常锻炼身体的兴趣与习惯，锻炼出勇敢顽强、朝气蓬勃、艰苦奋斗的精神。
Physical education is mainly to study and practice in the stadium. It can be directly honed by various natural factors such as spring, summer, autumn, winter, sunshine, wind, rain and so on. It can effectively improve the ability to adapt to the external environment and resist various diseases.
体育课主要是在体育场进行学习和练习，能直接受到春、夏、秋、冬，阳光、风、雨等各种自然因素的磨练，能有效地提高对外界环境的适应能力和抵抗各种疾病的能力。