这几年的中考试题中浮力题占分为10％～12％,尤其是对有关物体的上浮或下沉,液面的上升或下降的讨论,学生常常觉得无从下手,为了帮助解答此类习题,我在初中物理教学中有意识地培养学生利用平衡力的知识求解结果,取得了较好的教学效果。 In recent years, buoyancy questions account for 10% to 12% of the intermediate examination questions, especially for the discussion about the floating or sinking of objects, and the rise or fall of liquid level. Students often feel that they cannot start, in order to help answer such exercises. I consciously trained students to use the knowledge of balance to solve results in junior high school physics teaching, and achieved good teaching results.