我们对鲁科版初中物理八年级上、下册课本的使用情况做了调查,发现农村中学学生学习生活中比较熟悉的“物体的运动”“声现象”“光现象”三章成绩都较好,期中考试及格率在百分之七十五以上。但“透镜及其应用”“质量和密度”两章结束后的期末考试,及格率下降到百分之五十;第二学期“压强和浮力”这章教完,期中考试及格率则只有百分之四十左右了。通过对造成分化原因的分析,结合笔者的教学实际,这里提出防治分化的建议: We made a survey on the use of textbooks of the eighth grade and the eighth grade of physics in Luke Junior High School and found that the familiar phenomenon of “movement of objects”, “sound phenomenon” and “light phenomenon” in rural middle school students' Three chapters are better grades, midterm exam pass rate of more than seventy-five percent. However, the final exams after the end of the two chapters of “Lenses and Applications”, “Mass and Density”, the passing rate has dropped to 50%. The second semester of “Pressure and Buoyancy” The passing rate of exams is only about 40%. Through the analysis of the causes of differentiation, combined with the author's teaching practice, here is proposed prevention and treatment of differentiation: