言据性是语言类型学研究中的一个热门课题,它主要是指说话人(作者)对所述命题的知识来源及其可信性进行说明的语言表征,同时编码了说话人(作者)对所述命题的态度评价和介入程度。本文在综述英汉言据性研究的基础上,从言据性系统的词汇类型和信息源信度及使用倾向两个方面分析了英汉言据性系统的异同。 Speech is a hot topic in linguistic typology. It mainly refers to the linguistic representation that the speaker (the author) describes the source of knowledge of the proposition and its credibility, and at the same time encodes the speaker’s (author’s) The attitude of the proposition evaluation and intervention level. On the basis of a review of the English-Chinese linguistic research, this thesis analyzes the similarities and differences between the two linguistic systems of English and Chinese based on the lexical types of information-based systems and the reliability and usage of information sources.