3Gardner and Lambert.Attitudes and Motions in Second Language Learning[M].Powly,Mass:Newbury House,1972:367.
4J.Arnold.Affect in Language Learning[M].Cambridge:Cambridge University Press,1999:125.
5Veronica de Andres.Self-esteem in the Classroom or the Metamorphosis of Butterflies[M]//J.Arnold.Affect in Language Learning.Cambridge:Cambridge University Press,1999:87-89.
