在中师《生物》教材“常见传染病及其预防”一节中，“用显微镜观察病原体──蛔虫卵”是作为引导探究性实验安排在讲述传染病的概念之前进行的。因此，该实验的效果好坏直接影响到学生对传染病的正确理解和认识。本人通过多次的实验发现，教材所采用的“普通涂片检查法”虽然? In the section entitled “Common Infectious Diseases and Prevention” in the textbook “Biology” of the Normal School, “Use Microscope to Observe Pathogens – Ascaris Eggs” is used as a guide for exploratory experiments to arrange before describing the concept of infectious diseases. Therefore, the effect of the experiment directly affects the students’ correct understanding and understanding of infectious diseases. I have found through multiple experiments that the “common smear test” used in the teaching materials is