5Crismore, A. Talking with Readers: Metadiscourse as Rhetor- ical Act [M]. New York: Peter Lang. 1988.
6Emma Dafouz-Milne. The Pragmatic Role of Textual and In- terpersonal Metadiscourse Markers in the Construction and Attainment of Persuasion: A Cross-linguistic Study of Newspaper Discourse [ J ]. Journal of Pragmatics, 2008 (40).
7Hyland, K. & P. Tse. Exploring Corporate Rhetoric: Metadiscourse in the CEO' letter [ J ]. Journal of Busi- ness Communication, 1998 (35).
8Hyland, K. & P. Tse. Metadiscourse in Academic Writing: A Reappraisal[ J]. Applied Linguistics, 2004 ( 25 ).
9Muller, S. Discourse Markers in Native and Non-native Eng- lish Discourse [ M ]. John Benjamins Publishing Compa- ny, 2005.
10Schiffrin, D. Metatalk : Organizational and Evaluative Brackets in Discourse [ J ]. Sociological Inquiry: Language and Social Interaction, 1980 (50).