2010年上海高考试题第24题是一道圆周运动追击过程中的共线问题,开始网上的解答基本上为8次,在2011届学生复习过圆周运动后,我们让全年级学生做这道题,结果选正确答案14次的只占学生总数的16%,通过对本题的课堂探究,进行方法归纳,学生清晰地掌握了圆周运动追击过程 2010 Shanghai entrance exam questions 24 is a round-the-clock chase in the process of collinear problems, starting online answer is basically 8 times, in the 2011 review of the students after the circular motion, we let the whole year students do this problem, Results of the correct answer only 14 times the total number of students accounted for 16% of the questions through the classroom to explore ways to summarize the students a clear grasp of the circular motion chase process