力学知识是初中物理复习的重点和难点。为了提高学生学习物理的兴趣,本文从学生熟悉的自行车谈起,就自行车与力学知识的复习做小小的探索。 Mechanical knowledge is the focus and difficulty of junior high school physics review. In order to enhance students’ interest in studying physics, this article talks about bicycle familiar to students and makes a small exploration on the review of bicycle and mechanics.