综合题是每份试题的精华所在,不仅具有较好的考察功能,而且还对复习实践有“指向”作用.本题以圆为背景,考察旋转、等边三角形的判定、三角形全等、坐标系中的线段和点坐标的求法等;同时考察作图能力、推理能力(尤其是逆向思维能力)等;在数学思想方法上体现了分类讨论思想、转化思想等;较好地综合了各知识点,不乏创新思想,给人以 Comprehensive questions are the essence of each test, which not only has a good investigation function, but also has the function of “pointing ” to the practice of reviewing.This paper takes the circle as the background, examines the judgment of rotation, equilateral triangle, triangle congruent, Coordinate lines in the line and point coordinates of the law; at the same time investigate the mapping ability, reasoning ability (especially the ability of reverse thinking), etc .; in the mathematical thinking method reflects the thinking of classification, conversion ideas; better integrated Knowledge points, there is no lack of innovative thinking, giving people