5[11]Mey J L.Pragmatics: An Introduction (Second edition) [M].Beijing: Foreign Language Teaching and Research Press,Blackwell Publishers Ltd,2001.40.
6[12]Verschueren J.Understanding Pragmatics [M].Beijing: Foreign Language Teaching and Research Press,Edward Arnold (Publishers) Limited,2000.112.
7[17]Sperber Dan,Wilson,Deirdre.Relevance:Communication and Cognition(Second edition)[M].Beijing: Foreign Language Teaching and Research Press,Blackwell Publishers Ltd,2001.39.
8[2]Griffin E.A First look at communication Theory(2nd edition)[M].New York: McGraw-Hill inc.,1994.58.
9[4]Verschueren J.Understanding Pragmatics [M].Beijing: Foreign Language Teaching and Research Press,Edward Arnold,2000.75.
10[5]Firth J R.Papers in linguistics[C].London: Oxford University Press,1957.226.