语言教材的编写应以相关的语言学理论为基础,但在中国中学英语教材的编写实践中总是有所缺憾。以《新目标》教材为例,其中情态助动词呈现方式的不同导致了学习者的效果难以尽人意。因此,结合相关的情态助动词理论,本文重新构建了一套新的情态助动词体系,希望能给当前中学英语教材的编写者及有关的专家学者以新的启示。 The preparation of language teaching materials should be based on relevant theories of linguistics, but there are always some shortcomings in the compilation of Chinese teaching materials for middle schools in China. Taking the “new target” teaching material as an example, the different modes of modal auxiliary verbs result in the unsatisfactory results of learners. Therefore, this thesis reconstructs a new modality auxiliary verb system based on the modality of modal verbs, hoping to give new inspiration to current writers and relevant experts and scholars of English textbooks in middle schools.