4Widdowson, H.. Linguistics[M]. Oxford: Oxford University Press, 1996.
5Sperber, D., Wilson D.. Relevance[M]. Oxford: Blackwell Publishers, 1986.
6Brown, G., Yule, G.. Discourse Analysis[M]. Cambridge: Cambridge University Press,1983.
7Hellman, C.. The Notion of Coherence in Discourse[A]. In G. Rickheit, C. Habel,eds. Focus and Coherence in Discourse Processing[C]. Berlin: de Gruyter & Co, 1995.
8Coulthard, M.. An Introduction to Discourse Analysis[A]. London: Longman, 1977.
9Beaugrande, R.de, Dressler, W.. Introduction to Text Linguistics[M]. London:Longman, 1981.
10Graesser, A., Gernsbacher, M.S. Goldman. Cognition[A]. In T. Van Dijk, ed.Discourse as Structure and Process[C]. London: Sage Publications, 1997.
