6Horwitz, E. K, Horwitz, M. B. & Cope J. Foreign Lan- guage Classroom Anxiety[J]. The Modern Language Journal, 1986(70).
7Krashen S. Principles and Practice in Second Language Acqui- sition[M]. New York:Pergramon,1982.
8Krashen S. The Input Hypothesis: Issues and Implications [ M]. London : Longman, 1985.4.
9Penny U. Teaching L istening Comp rehension[M]. Foreign Language Teching and Research Press, 2000.
10Rodriguez, M. & O. Abreu. The Stability of General Foreign Language Classroom Anxiety across English and French[J]. The Modern Language Journal,2003(4) :365-374.
