一、三视图题为了体现《数学课程标准》“由实物的形状想象出立体图形,由立体图形想象出实物的形状,进行立体图形与其三视图、展开图之间的转化”这一理念,在课程改革后的中考试卷上,五彩缤纷的视图题令人应接不暇．1．由立体图形选三视图例1 (2006年．绍兴市)图1中几何体的正视图是( )． One and three-view questions In order to embody the concept of “Mathematics Curriculum Standards,” “Imagine a three-dimensional figure from the shape of a physical object, imagine the shape of a physical object from a three-dimensional figure, and perform the transformation between a three-dimensional figure and a three-view and unfolding figure.” 5. After the reform of the curriculum, the colorful questions are overwhelming. 1. From the three-dimensional graphics selected three views Example 1 (2006. Shaoxing City) Figure 1 is a front view of the geometry ().