圆锥曲线作为高考内容考查的重点,是高中学习的主要内容之一。圆锥曲线的第二定义揭示了圆锥曲线的内在联系,应用圆锥曲线的第二定义解题,不仅能够提高解题效率还有利于培养学生解决问题的能力。 Conic curve as the entrance exam content of the focus is one of the main content of high school. The second definition of the conic reveals the inherent connection of the conic. Using the second definition of the conic, it not only improves the efficiency of solving the problem but also helps to develop the students’ ability to solve the problem.