在近几年的苏州市中考物理试题中 ,最后一道试题都是电学黑箱题 .从学生的答题情况看 ,得分率不高 ,特别是 2 0 0 1年的最后一道电学黑箱题 ,得分率则更低 .寻找一下得分率较低的原因 ,我认为有如下两个方面 :第一 ,电学黑箱题本身不确定性较大 ,黑箱形式多样 ,工作状态较多 , In the last few years, the final test questions in the physical examination questions of the Suzhou College Entrance Examination were all black box questions. From the perspective of the students’ answers, the score rate was not high, especially the last black box question in the year of 2001. Lower. Looking for the reasons for the lower score rate, I think there are two aspects as follows: First, the black box problem of electrical power is inherently uncertain, with black boxes in various forms and working conditions.