函数一直是高考的重头戏,题型既有灵活多变的客观性试题,又有具有一定能力要求的主观性试题,而且分值比较大。函数的主干知识及其综合应用是每年高考的重点内容之一。函数试题的设计往往围绕几个基本初等函数和函数的性质、图像、应用等方面进行,考查函数与方程、向量、数列、不等式、解析几 Function has always been the highlight of college entrance examination, the questions are both objective and agile objective questions, but also have a certain ability to subjective questions, but the score is relatively large. The main function of the knowledge and its comprehensive application is one of the key elements of the annual entrance examination. Function test questions are often designed around several basic elementary functions and functions of the nature of the image, application, etc., to examine the function and equation, vector, sequence, inequality, analytic few