Since the revision of "English Teaching Syllabus for English Majors of Colleges and Universities" in 2000, applied English writing course has been included into it. This paper at-tempted to explore theories which can be used to improve the teaching practice of the three core stages of applied English writ-ing, including curriculum content arrangement, classroom teach-ing process, and after-class consolidation assignment. This paper analyzed pragmatic theories, memetics and the process of lan-guage meme replication, as well as the theory of text, aiming to provide detailed theoretical support for teaching practice.%《高等学校英语专业英语教学大纲》在2000年修订后，增设了英语应用文写作课程。本文试图针对英语应用文写作教学的三个核心阶段：课程内容编排，课堂教学过程以及课后巩固任务，探讨可以用来提高各个阶段教学实践的理论。本文分析了语用学理论，模因论和语言模因复制的过程，以及文本论，为教学实践提供了详细的理论支持。
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