“尺规作图、视图与投影”在实际生活应用很广泛,是中考必考的内容之一.这几年海南中考试题,注重利用“视图和投影”中几何体的表面展开图、视图与几何体之间的转换关系,考查学生对三视图基础知识的掌握程度及空间观念.同时还通过与相似等知识的结合,利用生活中常见的光线创设情境,考查中心投影和平行投 In the past few years Hainan senior high school entrance examination questions, pay attention to the use of “view and projection ” in the geometric surface of the expansion of the figure , View and geometry of the conversion between the students to examine the basics of the three-way view of the degree of mastery and space concepts.At the same time also through the combination of similar and other knowledge, the use of common lighting in life to create scenarios to examine the center of projection and parallel investment