元话语研究30年——发展、问题和展望

近年来，功能语言学视域下的元话语研究方兴未艾，同时元话语研究也逐渐呈现多重视角相互借鉴，多门学科交叉融合的特点。现有综述文献多聚焦元话语的分类、研究范式和理论溯源，对当前元话语研究中的问题和未来研究的趋势探讨不足。文章通过梳理30年来(1989~2019)元话语研究在国内外的发展，尝试厘清元话语理论和应用研究的发展脉络，探讨当前元话语研究中存在的主要问题并对未来研究进行展望。 

Metadiscourse Studies in the Past Three Decades: Development,Problems and Prospect

In recent years,the theoretical studies of metadiscourse from the perspective of systemic functional linguistics have been in full swing.At the same time,a trend has gradually emerged towards multi-perspective and interdisciplinary metadiscourse studies.However,the present literature mainly focuses upon the classification,research paradigms and background theories of metadiscourse,with the problems and prospect of metadiscourse research being largely neglected.This paper reviews the development of metadiscourse research at home and abroad in the past three decades(1989-2019),with an aim of clarifying the development of metadiscourse studies in both theoretical and applied fields.On the basis of this,this study discusses the potential problems in the current studies and the prospect of the future development in metadiscourse studies.