Using Swales’ (1990) CARS model and Hyland’s (2005) interpersonal model of metadiscourse, this study takes a pragmatic approach to explore the rhetorical structure and metadiscoursal features of research article introductions in a comparable corpus of 40 introductions from applied linguistics and chemistry. Specifically, this article reports on a rhetorical analysis of introduction moves and an identification of metadiscourse markers and discourse functions they were conveying and focuses on the mapping of the markers most pervasively used to signal the moves. Results showed disciplinary differences regarding both move structure and metadiscourse use which could be attributed to the susceptibility of rhetorical practices and preferences to socio-rhetorical conventions in each community. In addition to their pedagogical implications, the results of this study could be of use for novice research article writers and/or students in applied linguistics and chemistry in order to better consolidate their credence and socialisation in their community through publication.

使用 Swales (1990) 的汽车模型和 Hyland (2005) 的元话语的人际模型，本研究采用实用的方法在应用语言学和化学的 40 篇介绍的可比语料库中探索研究文章介绍的修辞结构和元话语特征。具体来说，本文报告了对介绍动作的修辞分析以及元话语标记和它们所传达的话语功能的识别，并重点关注最普遍用于指示动作的标记的映射。结果表明，在移动结构和元话语使用方面存在学科差异，这可归因于每个社区的修辞实践和偏好对社会修辞惯例的敏感性。除了它们的教学意义，