摘要：Critical discourse analysis (CDA) reveals the relationship between power and ideology behind language by analyzing discourse. News as an important channel for people to obtain information in their daily life, its objectivity is self-evident, but the ideology contained in it is often ignored by readers. This paper reviews the development and characteristics of critical discourse analysis, and analyzes the critical discourse from four aspects: transitivity, modality, transformation and classification, to explore the ideological and political positions behind the text.
