1[1]Hyland,K.Disciplinary Discourses: Social Interactions in Academic Writing[M].London: Longman,2000.14-15.
2[2]Swales, J. Genre Analysis: English in Academic and Research Settings[M].Cambridge:Cambridge University Press,1990.43-45.
3[3]Halliday, M A K.An Introduction to Function Grammar. 2nd edition[M].London: Edward Arnold,1994.
4[4]Bakhtin, M. The Dialogic Imagination: Four Essays (ed. M. Holquist, trans. C. Emerson and M. Holquist)[M].Austin: University of Texas Press,1986.91-92.
5[5]Fairclough, N. Discourse and Social Change[M].Cambridge: Polity Press,1993.10.
6[6]Volo*inov, V N.Marxism and the Philosophy of Language (trans. L. Matjka and I. R. Titunik)[M].London:Routledge,1995.139.
7[7]Hunston, S. & Thompson, G. Evaluation in Text: Authorial Stance and the Construction of Discourse[M].Oxford:Oxford University Press,2000.22-23.
8[8]Martin, J. R. Beyond Exchange: Appraisal System in English[A].In Susan Hunston and Geoff Thompson (eds.) Evaluation in Text: Authorial Stance and the Construction of Discourse[C].Oxford:Oxford University Press,2000.
9[9]Martin, J R and D Rose. Working with discourse: meaning beyond the clause[M].London: Continuum,2003.
10[10]White, P R R. Appraisal: An Overview[OL].www.grammatics.com/appraisal,2001.