4Hudson, R. A. , Sociolinguistics, Cambridge University Press,1980; Goodenough, W. H. ,Componential Analysis and the Study of Meaning. Langhage,32 ( pp155 - 216).1956.
4Flowerdew, J., Miller L. & Li D. C. S. Chinese Lecturers' Perceptions, Problems and Strategies in Lecturing in English to Chinese-speaking Students [J]. RELC Journal, 2000(1): 116-138.
5Nunan,D. Language Teaching Methodology[M]. New York:Prentice Hall Inc., 1991.
6Rowe M. B. Wait time: Slowing Down May Be a Way of Speeding Up [J]. Journal of Teacher Education, 1986 (1): 43-50.
7商务印书馆.《辞源》(修订本)[Z].北京:商务印书馆.1978.
8Simpson, J.A. & Weiner, E. S. C. The Oxford English die- fionary (2nd edition) [M]. Clarendon Press, 1989.
9Brown, P. & Levinson, S. Politeness: Some Universals in Language Usage[ M ]. Cambridge: Cambridge University Press, 1987.
10Brtmeau, T. J. Communicative Silences: Forms and Func- fi ons [ J 3. The Journal of Conmaunication, 1973, ( 17 ): 46.