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高考数学重视识图、构图、用图的考查,构图已成为近几年高考数学解题的基本要求.本文结合2014年云南省高考数学试题例举构图解题的常规方法及文理科数学构图解题差异,供教学参考.例1.(文、理)如图,网格纸上正方形小格的边长为1(表示1cm),图中粗线画出的是某零件的三视图,该零件由一个底面半径为3cm,高为6cm的圆柱体毛坯切削得到,则切削掉部分的体积与原来毛坯体积的比值为()
The mathematics of college entrance examination emphasizes knowledge map, composition and examination of figures, and composition has become the basic requirement of mathematics problem solving in college entrance examination in recent years. Example 1. (Wen, Li) As shown in the figure, the grid cell square side of the small cell length of 1 (that 1cm), the figure is drawn in thick lines of a part of the three views of the Parts from a bottom radius of 3cm, 6cm high cylinder blank obtained by cutting, then cut off part of the volume of the original volume ratio of the blank ()