4Ullmann, S. Semantics: An Introduction to the Science of Meaning[ M ]. Oxford: Basil Blackwell, 1962.
5Lakoff, G. Women, Fire, and Dangerous Things: What Categories Reveal about the Mind[M]. The University of Chicago Press, 1987.
6Halliday, M. A. K. An Introduction to Functional Grammar[M].Edward Arnold (Publishers) Limited, 1994.
7Thompson, I. Memory in Language Learning[J].In A,Wenden & J. Rubin (Eds,), Learner Strategies in Language Learning. New York, London, Toronto, Sydney,Tokyo,Singapore:Prentice Hall. pp. 43 - 56,1987.
8Schmitt, N. Vocabulary in Language Teaching[ M ]. Cambridge: Cambridge University Press, 2000.
9Lewis, M. How to Study Foreign Languages[M]. Houndmills, Basingstoke, Hampshire & London: Macmillan Press Ltd, 1999.