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【内容概要及考点分析】近年来,高考对立体几何的命题比较稳定,分值约占总分的18%,一般是两个选择题和一个解答题或一个选择题、一个填空题和一个解答题.本部分内容主要以线线、线面、面面位置关系(平行和垂直)的证明和距离、角度、体积、表面积计算为主.另外,与其他知识交汇考查成为热点,如与三角、函数、不等式等知识的综合,特别是空间向量的引入,为这部分内容提供了生机和活力,尤其是在解决问题上提供了新视角.如用空间向量解决平行或垂直关系,求夹角或距离问题等,这必将在高考中重点考查.
[Outline of content and analysis of test sites] In recent years, the propositions of the college entrance examination on solid geometry have been relatively stable. The scores account for approximately 18% of the total scores. Generally, they are two multiple choice questions and one answer or one multiple choice, one fill in blank and one answer. The main content of this section is mainly based on the proof of line, line, face positional relationship (parallel and vertical) and calculation of distance, angle, volume, and surface area. In addition, convergence with other knowledge becomes a hot topic, such as with the triangle, The synthesis of knowledge such as functions and inequalities, especially the introduction of space vectors, has provided vitality and vitality to this part of the content, and in particular has provided new perspectives on problem solving. For example, using spatial vectors to solve parallel or vertical relationships, seeking angles or Distance problems, etc., this will be the focus of examination in the college entrance examination.