关键词: 商务语篇, 词束, 语域, 结构, 功能

Abstract: The differences in the use of lexical bundles across business registers through a corpusdriven approach are investigated. Findings are as follows: (1)Lexical bundles in such registers as business academic papers, news and reports are mostly composed of nouns, but the counterparts in business letters mainly consist of verbs and pronouns. (2)In terms of the structures of lexical bundles, they tend to fall into the category of NP/PPbased bundles in business academic papers, news and reports, while business letters frequently employ VPbased bundles and Dependent clause bundles. (3) Lexical bundles in business academic papers, news and reports mainly serve the referential function, in sharp contrast to those in business letters, which are usually employed to express stance. In addition, there is a wide gap between these registers in the use of specific lexical bundles.

Key words: business discourse, lexical bundle, register, structure, function