1Brown, H. D. Teaching by Principles[M]. Englewood Cliffs, N.J.: Prentice Hall Regents,1994.
2Dornyei, Z. Motivation in second and foreign language learning[J]. Language Learning, 1998, 31, (3):117-135.
3Gardner, R. C. & P. D. MacIntyre, A student'scontributions to second language learning, part Ⅱ: affective variables[J]. Language Learning,1993,26, (1): 1-11.
4Ellis, R. The Study of Second Language Acquisition[M]. Oxford: Oxford University Press,1994.
5Johnstone, K. Research on language learning and teaching: 1997-98. [J] Language Learning, 1999, 32(3):137-156.
6Pintrich, P.L. & D. H. Schunk, Motivation in Education: Theory, Research and Applications[M]. Englewood Cliffs, NJ: Prentice Hall Regents, 1996.
7Williams, M. & R. Burden. Psychology for Language Teachers [M]. Cambridge: Cambridge University Press, 1997.
