1Brown, H. D. Principles o~1anguage learning and teaching[M]. Beijing: Foreign Language Teaching and Research Press, 2001.
2Budner, S. Intolerance of ambiguity as a personality variable[J]. Journal of PersonaliO~, 1962(1):29-50.
3Chapelle, C.,& Roberts. Ambiguity tolerance and field independence as predictors of proficiency in English as a second language[J]. Language Learning, 1986(1): 17-45.
4Ellis, R. The study of second language acquisition[M]. Shanghai: Shanghai Foreign Language Education Press, 1994.
5Ely, C. M. Tolerance of Ambiguity and the Teaching of ESL. In J. M. Reid (Eds.), Learning styles in the ESL/EFL Classroom[M]. Brooks/Cole Publishing Company, 1995.
6Frenkel-Brunswik, E. (1949). Intolerance of ambiguity as an emotional perceptual personality variable[J]. Journal oFPersonali(y, 1949(1):108-143.
7Krashen, S. The Input Hypothesis in Yang Dafu & Tan Zhiming (eds.). Reading on Linguistics[M]. Xi'an: Northwestern Polytechnical University Press, 1984.
8McLain, D. L. The MSTAT-I: A new measurement of an individual's tolerance for ambiguity[J]. Educational and Psychological Measurement, 1993( 1): 183-1 89.
9Norton, R. W. Measurement of ambiguity tolerance[J]. Journal o1" Personality Assessment, 1975(6):607-619.
4[1][5]McLain, D. L. The MSTAT - 1: A new measure of an individual's tolerance for ambiguity [J ]. Educational and Psychological Measurement, 1993, (53).
5[2][4]Budner, S. Intolerance of ambiguity as a personality variable[J]. Journal of Personality, 1962, (30).
6[3]Norton, R. W. Measurement of ambiguity tolerance[J]. Journal of Personality Assessment, 1975, (39).
7[6]Birckbichler, D. &A. Omaggio. Diagnosing and responding to individual learner needs[J]. Modern Language Journal, 1978, (62).
8Ehrman M E,Oxford R L.Cognition Plus:Correlates of Language Learning Success.Modern Language Journal,1995,1,67-89.
9Chapelle C A,The Relationship between Ambiguity of Tolerance and Success in Acquiring English as a Second Language in Adult Learners.Unpublished Doctoral Dissertation,University of Illinois,Illinois.1983.In Brown H D (4th ed.).Principles of Language Learning and Teaching.White Plains,NY:Longman,2000.
10Larsen-Freeman D,Michael H L.An Introduction to Second Language Acquisition Research.Peking:Foreign Language Teaching and Research Press,2000.
