功率中有关启动模型作为变加速模型的经典案例之一,在高考中频频出现,而且此类习题多属于中档难度范畴,对学生的能力要求高。本文从模型化的角度出发构建一个较为完整而明晰的两类启动模型,提供一个清晰的解题思路,引导学生快速找到此类问题的解题方向,有利于学生对该类问题的解决。 Power in the start-up model as a variable speed model, one of the classic cases, frequently appear in the college entrance examination, and such exercises are mostly mid-range degree of difficulty, the ability of students demanding. This paper constructs a relatively complete and clear two types of startup models from the perspective of modeling, provides a clear idea of ​​solving problems, guides students to quickly find the solution direction of such problems, and helps students to solve such problems.