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立体几何中的动点问题在历年高考、学考中都会有所体现,并且这类问题有一定的难度,要解决此类问题,要求学生具有一定的空间想象能力和问题转化能力,其中比较常见的题型有求动点所形成的轨迹图形和轨迹长度,动点所围成的几何体的表面积和体积,以及有关动点的最值问题等等.下面就以上几种情况举例进行说明.一、和动点有关的图形问题
The problem of moving point in three-dimensional geometry in college entrance examination in the calendar year, the test will be reflected, and such problems have a certain degree of difficulty, to solve such problems, require students to have some spatial imagination and problem-solving skills, of which more common Of the questions are the trajectory and trajectory length formed by the action point, the surface area and volume of the geometry enclosed by the moving point, and the most value question about the moving point, etc. The following are some examples for illustration above. , And moving point-related graphics problems