恒成立问题是高考的一个热点问题,它涉及到一次函数、二次函数、指数函数、对数函数、圆锥曲线的性质、图象等数学思想与方法。作者在多年教学实践的基础上给出了有关恒成立问题的分析策略和解题技巧,对于培养薛学生思维的灵活性、创造性方面起到了积极的作用。 The problem of establishing a permanent college entrance examination is a hot issue, it involves a mathematical function, quadratic function, exponential function, logarithm function, the nature of conic curves, images and other mathematical ideas and methods. On the basis of many years of teaching practice, the author gives the analysis strategies and problem solving skills about the establishment of Heng, which play a positive role in cultivating the flexibility and creativity of Xue students.