本文基于笔者多年大学物理及固体物理的教学经验以及观摩年轻教师大学物理课堂的心得体会，概括了因任课教师固体物理知识的缺乏而在大学物理教学中常出现的几个知识盲点，分析了产生这些概念上的模糊甚至科学性错误的根源，并从固体物理层面阐述 正确的理解或表达.

Based on authors’ teaching experiences in college physics and solid state physics for decades and the experience of observing young teachers in college physics classrooms, several knowledge blind spots of teachers that often occur in teaching college physics due to the lack of solid state physics knowledge are summarized. The causes of conceptual ambiguity and even scientific error are precisely analyzed, and the correct understanding or expression is expounded from solid-state physics level.