综观近几年各地的中考试题,矩形的翻折问题已成为一个热点,不少试卷中将它与函数结合在一起成为压轴题.此类问题的解决对学生的思维能力要求较高,学生普遍感到有些困难.实质上,翻折问题是一个轴对称问题,它具有一些特殊的性质,如翻折前后的图形全等,从而对应的线段相等,对应角相等.因此,此类问题常可利用方程的模式来解决. In view of the examination questions in various places in recent years, the problem of rectangular folding has become a hot topic. Many papers combine it with a function to become a finale issue. The resolution of such problems requires a higher level of thinking ability of students, and students generally It is a bit difficult. In essence, the problem of folding is an axisymmetric problem. It has some special properties, such as the graphics before and after folding, so that the corresponding lines are equal and the corresponding angles are equal. Therefore, such problems can often be used. The pattern of the equation to solve.