一、知识体系二、内容辅导1．要理解溶液、饱和溶液与不饱和溶液、团体溶解度、质量百分比浓度等几个重要概念的含义，抓住概念中的关键词语。如对于溶液这一概念，必须抓住下列几个关键词，并理解其含义：1）均——’——指溶液各处组成完全相同，浓端一样；2）稳定——一指的 I. Knowledge System II. Content Coaching 1. To understand the meaning of several important concepts such as solution, saturated solution and unsaturated solution, group solubility, and mass percentage concentration, grasp the keywords in the concept. As for the concept of solution, we must grasp the following key words and understand its meaning: 1) both - ’- - refers to the same composition of the solution everywhere, the same as the thick end; 2) stability - one finger