2Deci, E.L., Ryan, R.M.Intrinsic motivation and self-determina- tion in human behavior [M].New York: Plenum Press, 1985.
3Ryan, R.M., Deci, E.L.Self-Determination Theory and the Facil- itation of Intrinsic Motivation, Social Development, and Well-Being [J]. American Psychologist, 2000,55 ( 1 ) : 68 - 78.
4Brown, H.D.Teaching by principles [M].Englewood Cliiffs NJ: Prentice Hall 1994.
5Noels, K.A., R.Cement, L.G.Penetier, R.Intrinsic extrinsic and integrative orientations of French Canadian learners of English [J ].Canadi- an Modern Language Review, 2001,57 : 424-440.
