5[1][3][8][9] Dudley-Evans, T. & St John, M. J. 1998. Developments in ESP: A Multi-disciplinary Approach [M]. Cambridge: Cambridge University Press. P53;P55-57;P61;P62
6[7]Ellis, M. & Johnson, C. 2002. Teaching Business English [M].Shanghai: Shanghai Foreign Language Education Press.
7[10]Yli-Jokipii, H. 1994. Requests in Professional Discourse: A CrossCultural Study of British, American and Finnish Business Writing [M].Helsinki: Suomalainen Tiedeakatemia. Matthiessen, C. Glossary of Systemic Functional terms. At: http://minerva. ling. mq. edu. au/resource/VirtuallLibrary/Glossary/sysglossary. htm
8Copper, D. E. Metaphor[M]. Oxford: Basil Blackwell, 1986.
9Cormac M. & Earl, R . A Cognitive Theory of Metaphor[M]. Cambridge: MIT Press, 1985.
10Davies, M. Idiom and metaphor[ J]. Proceedings of the Aristotlian Society, 1982 (83) :67-85.
