“脱离题海战术,提高做题效率”是我们的追求,实现这一追求的关键在于精解,即认真弄懂所做的每一道题目,感悟题目考查的目的,并能加以拓展、延伸,最终能举一反三,达到高效学习的目的.下面以一道习题的探究为例,谈谈我们对提高做题效率的思考. “From the title of the sea tactics to improve the efficiency of doing things ” is our pursuit, the key to achieving this pursuit is to resolve, that is, carefully understand each of the topics that have been done, sentiment, the purpose of examinations and can be expanded, Extension, and ultimately give top-down results, to achieve the purpose of efficient learning below to explore an exercise as an example, to talk about our thinking on improving efficiency.