中文摘要：

本文以隐喻的话语动态框架和积极话语分析为基础确立了积极隐喻分析的方法，主要步骤包括识别隐喻、发现隐喻使用的系统性、揭示隐喻使用的作用。通过对《同在蓝天下——怎么看教育公平》一文进行的积极隐喻分析，本文发现：1）在语言使用层面关于“（义务）教育发展”的系统隐喻较多；2）在认知模式层面体现的隐喻脚本为“（义务）教育发展是旅行”；3）隐喻使用的作用主要在于解释、说服、移情，即向读者解释如何消除教育不公现象，说服读者正确看待（义务）教育发展中的教育不公现象，最终达成作者与读者之间的共识和相互理解。

英文摘要：

Based on the discourse dynamics framework and positive discourse analysis, the paper establishes the method of positive metaphor analysis, which consists of the following procedures： identifying metaphors, finding systematicity in metaphor use, and analyzing the functions of metaphor use. By researching metaphor use in the text ＂Under the same blue sky ： perspective on education equality＂, the paper finds that the systematic metaphors concerning compulsory education development are frequent on the level of language use, and that on the conceptual level the overarching frame is JOURNEY metaphor scenario, i. e. ＂COM- PULSORY EDUCATION DEVELEOPMENT IS JOURNEY＂. It also argues that metaphor plays the role of explanation （ explaining to readers how to wipe out education inequality）, persuasion （persuading readers to adopt reasonable attitudes towards education inequality in the compulsory education development）, and empathy （achieving mutual understanding and consensus between the writer and reader）.