3Richterich, R. & J. Chancerell. Identifying the Needs of Adults Learning a Foreign Language [C]. Oxford: Pergamon Press,1980.
4Berwick, R. Needs Assessment in Language Programming : from The- ory to Practice [A]. In R. K. Johnson(ed). The Second Language Curriculum[C]. Cambridge: Cambridge University Press, 1989 : 183 - 208.
5Robinson P. ESP Today [M]. Prentice Hall. UK: Prentice Hall in- ternational (UK) ltd, 1991.
6Munby J. Communicative Syllabus Design [M]. Cambridge : Cam- bridge University Press, 1978.
