對(duì)數(shù)函數(shù)
① 理解對(duì)數(shù)的概念及其運(yùn)算性質(zhì)，知道用換底公式能將一般對(duì)數(shù)轉(zhuǎn)化成自然對(duì)數(shù)或常用對(duì)數(shù);了解對(duì)數(shù)在簡化運(yùn)算中的作用.
② 理解對(duì)數(shù)函數(shù)的概念;理解對(duì)數(shù)函數(shù)的單調(diào)性與函數(shù)圖像通過的特殊點(diǎn).
③ 體會(huì)對(duì)數(shù)函數(shù)是一類重要的函數(shù)模型;
④ 了解指數(shù)函數(shù)與對(duì)數(shù)函數(shù)互為反函數(shù)().
(4)冪函數(shù)
① 了解冪函數(shù)的概念.
② 結(jié)合函數(shù)的圖像，了解它們的變化情況.