Comparative study of authorial identity in English and Chinese academic discourse Contrastive study of anaphors in English and Chinese academic discourses Comparative study of English and Chinese academic discourse Comparative study of metaphor use in English and Chinese business discourse Comparative study of metaphors in English and Chinese social discourse 并列题名：Comparative study of English and Chinese academic discourse 并列题名：Comparative study of metaphor use in English and Chinese business discourse Contrastive study of evaluation in English and Chinese academic book reviews 并列题名：Comparative study of metaphors in English and Chinese social discourse Comparative study of the functions of discourse markers in English and Chinese fictional discourse