解析几何是高中数学核心内容之一,是高考考核的重点内容,向来以运算量大著称,是学生在数学高考中的拦路虎。因此,在平时的教学中,教师应对中考题进行多解分析,寻找最简运算,拓展学生解题思路,突破难点。本文以2016年高考数学全国新课标卷Ⅱ理科第20题为例,从三个角度进行解法探究。希望给读者带来一些启示。1试题呈现 Analytic geometry is one of the core content of high school mathematics, is the key content of college entrance examination, has always been known for computing, is a stumbling block in the math entrance exam. Therefore, in normal teaching, teachers should conduct multiple analysis of the examination questions in order to find the simplest operation, expand the students’ problem solving ideas and break through the difficulties. In this paper, take the 2016 National Mathematics Curriculum National II Curriculum Question 20 as an example, from three perspectives to explore the solution. I hope to give readers some inspiration. 1 questions presented