体育教学是在一个多变的动态过程中进行的。其特点就是要求教师用引人入胜的讲解、准确优美娴熟的技能示范、形式多样的教法，使学生在较短的时间内较快较好地领会技术要领，掌握技术动作。这种教与学的完美结合与体现，无不要求我们有效利用和把握体育课各个环节的时间，以期 Physical education is in a dynamic process of change. Its characteristic is to require teachers to use compelling explanations, accurate and beautiful skill demonstration, a variety of forms of teaching, so that students in a relatively short period of time to better understand the technical essentials, master technical action. This perfect combination of teaching and learning and reflect, all require us to effectively use and grasp all aspects of physical education in the course of time,