本集围绕第二学期模块二（The power of images）中的第三单元（色彩Colours）对色彩进行探讨。第一讲主要介绍色彩在语言中的应用，包括颜色的表达和成语。相关词语辨析和讲解。 This episode is about Unit 3 (Colours) of the 2nd module (The power of images) in the second semester of higher-school English. The main part of this episode is about the how to use them in language. Some phrase analyses and main vocabularies explanations are included.