2Taylor John R. Linguistic Categorization: Prototypes in Linguistic Theory [M]. Beijing: Foreign Language Teaching and Research Press, 2001:21.
3Georaerts Dirk. Diachronlc Prototype Semantics: A Con- tribution to Historical Lexicology [ M ]. Oxford and New York: Oxford University Press, 1997 : 67.
4Newmark Peter. A Textbook of Translation [ M ]. Shang- hai: Shanghai Foreign Language Education Press, 2001 : 40.
5Tour/Gideon. In Search of a Theory of Translatlon[ M]. Tel Avlv: Porter Institute for Poetics and Semiotics, 1980 : 102.
