圆锥曲线是高中数学的主要内容,它与函数、方程、不等式、三角等联系密切,是中学数学各主干知识的交汇点,是各种数学思想方法的综合点,也是培养我们能力的着力点,因而是历年高考的重点.在高三一轮复习中我们需要掌握以下几个问题. Conical curve is the main content of high school mathematics. It is closely related to functions, equations, inequalities, triangles, etc. It is the meeting point of middle school mathematics major knowledge. It is a comprehensive point of various mathematics ideas and methods, and it is also the focus of training our ability. Therefore, it is the focus of the college entrance examination over the years. We need to grasp the following questions in the high-level review.