4Dudley-Evans,Tony.Developments in English for Specific Purposes:A multi-disciplinary ap-proach[M].Cambridge:Cambridge University Press,1998.4-5.
5Hutchinson,Tom&Waters,Alan.English for Specific Purposes:A learner-centered approach[M].Cambridge University Press,1987.19.
6Robinson,P..ESP today:a practitioner's guide[M].Hemel Hempstead:Prentice Hall Interna-tional,1991.6.
7Strevens,P..ESP after twenty years:a re-appraisal[A].M.Tickoo(Ed.).ESP:State of the Art[C].Singapore:SEAMEO Regional Language Centre,1988.1-13.
8Dudley-Evans,T & St John, M. J. Developments in English Jor Specific Purpose[M]. Cambridge :CUP, 1998.
9Freeman, D. Teacher training, development, and decision making: A model of teaching and related strategies for language teacher education[J]. TESOL Quarterly, 1989,23 (1) : 27-45.
10Hutchinson, T.& Waters. A. English for Specific Purpose,A Learning-centered Approach[M]. Cambridge ; CUP, 1987.