现代科学研究告诉我们,人的生命成长过程可以划分为这样几个时期:生长期(幼儿期)、探索期(求学期)、创造期(成熟期)和老年期。在不同时期又会有不同的关键阶段。十三四岁,初中二年级,便是探索期(求学期)当中的一个关键阶段。学生升入初中二年级,出现一个明显迹象——两极分化。经过十几年的观察研究,笔者认为,造成这种分化主要有以下三方面因素:一、心理因素随着我国经济、文化的发展,教育事业的进步,特别是随 Modern scientific research tells us that the process of human life growth can be divided into such periods as growth period (infant period), exploration period (student period), creation period (maturity period) and old age period. There will be different key stages in different periods. The thirteen-year-old and the second-year junior high school are key stages in the exploration period (study period). As students progressed to second grade in junior high school, there was a clear sign of polarization. After more than ten years of observation and research, the author believes that there are three main factors that cause such differentiation: First, psychological factors, along with the development of our country’s economy and culture, and the progress of education, especially with