四边形中的动点问题近几年中考题在四边形、三角形中出现了动点问题.这类问题必然把几何和代数联系起来以考查考生用动态的观点去分析和解决问题的能力.有运动必有函数,把运动引入数学,正是为了进一步学习数学的需求,便于与高一级学校课本内容相衔接,当然也是中考选拔人才的需求. The problem of moving points in quadrilaterals has emerged in the quadrangle and triangle in recent years. This kind of problem must link geometry and algebra to examine the ability of examinees to analyze and solve problems with dynamic viewpoints. There are functions to introduce movement into mathematics. It is precisely for the purpose of further studying mathematics that it is easy to link up with the content of higher school textbooks. It is also a requirement for the selection of talents in the entrance examination.