本文以《学写通知》为例，谈谈如何运用CAI辅助应用文教学，使应用文的教学效果呈现最优化。一、CAI再现鲜活的生活场景，激发学生的写作兴趣。上课伊始，教师点按鼠标，大屏幕上便出现了一个活泼可爱的小天使，她一边飞翔，一边用手中那神奇的魔术棒挥出“学写通知”这几个大? In this paper, “notice to write” as an example, talk about how to use CAI to assist the application of teaching, teaching effectiveness of the application of the text presents the best. First, CAI reproduces lively scenes of life, stimulate students' writing interest. At the beginning of the class, the teacher clicked the mouse and a lovely little angel appeared on the big screen. While she was flying, she wielded the magical magic stick in his hand and waved “How many letters did she write?”