文档介绍：Good morning, distinguished professors and teachers, ladies and gentlemen, thank you for attending the oral defense. Firarch about discourse analysis at home and abroad and then points out the theoretical basis and methods. In this chapter, the author introduces the origin of discourse analysis, and some very helpful theories in analyzing news discourse. In this part, it overviews some common knowledge related to news, including definitions of news, the characteristics of news, and the inclusion relationship between discourse and news discourse.
Part three gives a detailed introduction to lexical analysis on the discourse of broadcast news and explains the lexical characteristics of English broadcast news. In Chapter 3, the author introduces lexical density, which is a kind of mathematical method to measure how much meaningful information is included in news report. And in lexical analysis on the discourse of broadcast news, it has several features that it is common that we always see powerful words, which are always simple, and contraction words and acronyms are used in news reports. Besides, nouns are always used as attributives to save reporting time and make the reports briefer. Numerals always appear in news to dedicate the scientific and authentic characteristics of news. Fuzzy terms and hedges are also used to show the respect of practice and facts.
Part four makes the