其他摘要：This paper explores and concludes the features and semantic prosodies of adverbs in public speaking setting by native English speakers through a corpus-driven approach. The corpus used is a sub-corpus (CES_C) from the self-built corpus (CES) comprising of 177 texts (type token) that are original and authentic speeches delivered by celebrities from UK and US. The speakers of these speeches are varied from all walks of life including presidents, business elites and etc. In terms of research methodology, this study is conducted both the quantitative approach of corpus linguistics and the qualitative approach of observation. By annotated part-of-speech (POS) with Treetagger tool, the study examined the occurrence frequency of adverbs and listed top 30 high-frequency adverbs employed in the corpus. Then different categories of adverbs were analyzed in terms of semantic function, and the frequency of occurrence was calculated respectively. The results shows the use of adverbs only accounts for 5% of all the words which is relatively lower than the use of other part of speech. Besides, some adverbs have certain semantic orientations based on different categorized adverbs, which provides intuitive reference resources for English public speaking teaching and learning in ESL/ EFL community. In addition, the combination of research focuses such as corpus, semantic prosody, public speaking and adverbs can be used as reference to enlarge the scope of corpus study and enhance the level of public speaking research.
