在常规的物理问题中,画清示意图是解决问题的首要.但有些空间立体图示不容易显示出物理问题的实质而且也很难画清楚,给问题的解决带来很大难度.解决此类问题,要变换思维角度,打破常规,创造性地拓展思路,探求新的解题途径和方法。本文就高三总复习中出现的几个典例进行分析. In conventional physics problems, drawing a schematic diagram is the first priority for solving problems. However, some spatial three-dimensional diagrams are not easy to show the essence of physical problems and are difficult to draw clearly. It is very difficult to solve the problems. Problems, we must change the perspective of thinking, break the routine, creatively expand ideas, and explore new ways and methods to solve problems. This article analyzes a few typical examples appearing in the third grade review.