生态语言学为探索语言的生态因素以及语言与生态的关系提供了理论基础。语言体系、语言政策和语言规划必须以维护人类社会良好的生存环境为出发点和终结点。本文将生态语言学理论结合COCA语言库检索数据，应用于大学英语课堂教学实践，启发学生分析不利于生态和谐的语言表达，并思考其背后所蕴含的语言策略和意识形态之间的关系，从而寻求构建生态和谐的语法表达，树立正确的生态价值观，构建环境友好型社会。

关键词：生态语言学、美国当代英语语料库、施事

Eco-linguistics provides a theoretical basis for studying the ecological elements of language as well as exploring the relationship between language and ecology. Language system, language policy and language planning should aim at maintaining a healthy and pleasant ecological environment. This paper applies the theory of Eco-linguistics into college English teaching, with data support form COCA. This paper hopes to enlighten students on the analysis of English expressions not aligned with ecological harmony and the reflection on the relationship between language strategy and ideology. This paper attempts to encourage students to seek ecologically harmonious language expression, establish correct values and explore a path of eco-friendly society.

Keywords: Eco-linguistics, COCA, Agency