1.本单元重、难点分析本单元的重点:指数幂的运算性质、对数的运算性质;指数函数、对数函数的概念、图象和性质.本单元的难点:指数函数、对数函数的性质的综合应用.指数函数、对数函数是中学数学中非常重要的两种基本初等函数,是高考的必考内容,主要考查:定义域、值域、图象以 1. The unit is heavy and difficult to analyze the focus of this unit: the power of the exponential power, the nature of the operation of the logarithm; the exponential function, the concept, the image and the nature of the logarithm function The difficulties of this unit: exponential function, logarithmic function The exponential function, logarithm function is a very important two elementary elementary functions in high school mathematics, is the compulsory content of the college entrance examination, the main test: domain, range, image