1993年高考第27题“眼睛隔着凸透镜看方格”和1995年第23题“眼睛通过乎面镜看米尺的刻度范围”两题的得分率都很低,究其原因有二:一是学生对眼睛看到物和像的条件不清楚;二是对眼睛看到物和像的范围——视场,缺乏正确认识.尽管人们睁开眼就接触光,就要看物体(或像),真可谓司空见惯,但不一定能搞清其物理原理.正如哲学上所说:“感觉到的东西,不一定能深刻理解它;只有理解了的东西,才能更深刻地感觉它.理论上的突破常常 是实践飞跃的基础.”眼睛是一架万能的照相机,不管是物还是像(包括实像和虚像)只要在“近点”以外,眼 In 1993, the 27th title of the college entrance examination “The eye looks at the square through the convex lens” and the 23rd title of 1995 “The scale range of the eye through the mirror to see the ruler” are very low. There are two reasons for this: It is the student’s unclear conditions for the eyes to see objects and images; the second is the lack of a correct understanding of the scope of the objects and images—the field of view. Although people open their eyes and touch light, they must look at objects (or like It is common to find that it is not uncommon to understand its physical principles. As philosophically speaking, “What is felt doesn’t necessarily comprehend it profoundly; only something that is understood can make a deeper impression on it. Theoretically Breakthroughs are often the basis for a leap in practice.” The eye is a universal camera, whether it is objects or images (including real images and virtual images) as long as they are outside the “near point” of the eye.