2Brown, J.D. & Hadson, T. "Alternatives in Language Assessment" [ J ]. TESOL Quarterly, 1998,32 (4) : 635 - 675.
3Chapelle, C. "Hints about CALL Use from Research" [ J ]. Pac CALL Journal,2005,1/1.
4Ellis, R. Understanding Second Language Acquisition[ M ]. Oxford University Press, 1985.
5Halliday. M.A.K. , An Introduction to Functional Grammar [ M ]. London : Edward Arnold Limited, 1994.
6Krashen, S.D. The Input Hypothesis: Issues and Implications [ M ]. Harlow: Longman, 1985.
7Kumaravadivelu, B. "Maximizing Learning Potential in the Communicative Classroom" [ J]. ELT Journal, 1993, ( 1 ).
8Rau, W. & Heyl, B.S. "Humanizing the College Classrooms: Collaborative Learning and Social Organization Among Students" [ J ]. Teaching Sociology, 1990,18 ( 2 ).
9Richards, J.C. & Rodgers, T. S. , Approaches and Methods in Languages Teaching [ M ]. Cambridge: Cambridge University Press ,2001.
10Widdowson H. G. , Aspects of Language Teaching [ M ]. Shanghai Foreign Education Press, 1991.
