David Machin教授是国际知名学者，研究领域为批判性话语分析与多模态分析。2022年初，他加入上海外国语大学语言科学研究院，带领青年教师与学生产出高水平研究成果。
Machin教授被评为2025年全球前2%顶尖科学家
Machin教授已出版学术专著与编著10余部，并在国际SSCI及A&HCI来源期刊发表学术论文与书评百余篇。他的多部著作被广泛引用，并被翻译至世界各地成为相关课程的阅读书单。《What is Multimodal Critical Discourse Studies？》《Doing critical discourse studies with multimodality: from metafunctions to materiality》等代表性论文长期位居相关期刊高阅读量和高被引文章前列。同时，他也担任该领域所有主要国际SSCI期刊的顾问编委，以及Bloomsbury出版社《Advances in Critical Discourse Studies》书系的联合主编。
Machin教授近期发表的成果包括：
1.Zhao, W., & Machin, D. (2026). How health influencers use algorithms to create discourses: Distorting medical information for niche marketing groups. Discourse & Society.
2.Machin, D., Zhang, L., & Smith, C. A. (2026). Representing societies in language teaching textbooks. Journal of Language and Politics.
3.Cheng, L., Machin, D., & Zhu, X. (2025). How US-defined ‘international law’ becomes legitimized in the news media: BBC coverage of the case of the US against Huawei/Meng Wanzhou. Global Media and Communication, 21(2), 155-173.
4.Machin, D., & Mayr, A. (2023). How to do critical discourse analysis: A multimodal introduction (2nd ed.). SAGE Publications.
5.Ledin, P., & Machin, D. (2020). Introduction to multimodal analysis (2nd ed.). Bloomsbury Academic.
Machin教授以其富有感染力、以学生为中心的教学风格而广受好评。他悉心指导所带的硕博研究生，带领他们参与多项国际研究项目。近期，两位学生参与并发表了SSCI国际期刊Visual Communication特刊论文，探讨食品包装如何对消费者产生误导：
[1] Ye JQ, Kenalemang-Palm LM, and De Leonardis F. (forthcoming) Wellness Culture and Indigenous Food Imaginaries in South Africa: A Multimodal Critical Discourse Analysis of Superfood Marketing. Visual Communication.
[2] Li WY, and Eriksson G. (forthcoming) The Booming Market for Functional Drinks in China: A Multimodal Critical Discourse Analysis of How Packaging Conveys Notions of Health. Visual Communication.
