高考数学试题往往都是经过命题专家充分打磨编制出来的,既承担了必要的选拔、区分功能,又对教学起着导向作用,值得师生认真思考。笔者对下面这道高考题进行了深入思考和探究,有一些心得体会,与大家交流。1试题呈现(2015年高考数学北京卷理科第18题)已知函数f(x)=ln(1+x)/(1-x)。 Mathematics test questions are often prepared by the proposition experts fully polished, not only bear the necessary selection, distinction between functions, but also plays a guiding role in teaching, teachers and students should deserve serious consideration. The author conducted a deep examination and exploration of the following entrance exam, with some experiences and exchanges with you. 1 questions presented (2015 college entrance examination Beijing Science Volume 18) known function f (x) = ln (1 + x) / (1-x).