5Horwitz,E.K.& Young,D.J.(Eds.) Language anxiety:from Theory and Research to Classroom Implications [M]. Englewood Cilffs, NJ: Prentice Hall, 1991.42.
6Maclntyre, P. D. & Gardner, R. C. The Subtle Effects of Language Anxiety on Cognitive Processing in the Second Language [J]. Language Learning, 2, 1994.
7Krashen, S. D. The Input Hypothesis: Issues and Implication [M]. London Longman Inc., 1985. 75.
8Horwtiz, E. K., Horwtiz, M. B. & Cope, J. A. Foreign Language Classroom Anxiety [J]. Modern Language Journal. 70, 1986.
9Gardner, R. C., Lalonde, R. N., Moorcroft R. & Evers, F. T.. Second language attrition: The role of motivation and use [J]. Journal of Language and Social Psychology, 6, 1987.
10Aida, Y. Examination of Horwitz, Horwitz and Cope' s construct of foreign language anxiety: the case of students of Japanese[J]. Modern Language Journal, 78, 1994.
