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立体几何是高中数学的重要内容之一,它包括“直线与平面”、“多面体与旋转体”两部分知识.正确理解和掌握有关概念、性质、定理和公式,并能运用它们进行推理、论证、判断及有关几何量的计算,恰当地调用数学思想特别是转化思想解决问题,是高考对我们的一贯要求.因此,在立体几何总复习中,我们应当花大力气夯实基础,在线线、线面、面面的位置关系,空间角和距离的求解,多面体和旋转体的表面积、体积及有关截面等问题的探求上加强训练,以求取得良好的复习效果.一、理解并掌握线线、线面、面面位置关系的概念,注重推理论证的严密性线线、线面、面面的位置关系是立体几何中重要的基础知识之一,其重点是平行与垂直关系.历年高考试
Three-dimensional geometry is one of the important contents of high school mathematics. It includes “straight and plane”, “polyhedron and rotating body” two parts of knowledge. Correct understanding and mastery of concepts, properties, theorems and formulas, and can use them to reason and demonstrate , judging and calculation of relevant geometric quantities, appropriately calling mathematics ideas, especially transforming ideas to solve problems, is the consistent requirement of the college entrance examination. Therefore, in the review of the three-dimensional geometry, we should make great efforts to lay a solid foundation, online lines and lines. Face and face position relations, solution of space angle and distance, surface area, volume and cross section of polyhedron and rotating body, etc. to strengthen the training, in order to obtain a good review effect. First, understand and master the line, The concept of the positional relationship between line and surface, and the emphasis on the punctuation of the theoretical proofs The positional relationship between line, line, and face is one of the important basic knowledge in three-dimensional geometry. Its emphasis is on parallel and vertical relationships.