把几何问题放在代数情境中来设计,这种题型立意新、综合性强,能比较全面地考查学生分析问题和解决问题的能力,因此常在中考中出现.求解代数情境中的几何题,关键是要找出代数情境中所隐含的几何条件,特别是在直角坐标系中,要注意点的坐标往往暗示了线段的长度或角度的大小等条件 Designing geometric problems in algebraic contexts is a novel and comprehensive approach that can examine students’ ability to analyze problems and solve problems more comprehensively. Therefore, they often appear in the middle exam. Solving geometric problems in algebraic situations The key is to find out the geometric conditions implied in algebraic situations. Especially in Cartesian coordinates, the coordinates of points to be noted often indicate conditions such as the length or angle of the line segment.