7Grice,H.RLogic and Conversation[A].Syntax and Semantics 3:Speech Act[C].Ed.P.Cole &J.Morgan.New Yor:Academic Press, 1975.41-58.
8Grice,H.RFurther Notes on Logic and Conversation [A].Snytax and Semantcis 9 : Pragmatcis [C].Ed.EoCle.New York: Academic Press, 1978.113-128.
9Hom.L.R.Toward a NewTaxonomy for Pragmaticlnference : Q-based and R-based Implicature[A].Meaning,Form,and Use in Context:Linguistic Applications[C].Ed.D.Schiffrin. Washington,D.C.:Georgetown University Press, 1984.11-42.
10Leech,G Principles of Pragmatics[M].London:Longman Press, 1983.
