5Alderson J C & Beretta A (e&.). Evaluating Second Language Ed- ucation [C]. Cambridge University Press, 1992.
6Gimenez, J C. Process assessment in ESP: Input, throughput and output [J]. English for Specific Purposes, 1996,(3).
7Leung C & Mohan B. Teacher formative assessment and talk in classroom contexts: Assessment as discourse and assessment of discourse [J]. Language Testing, 2004,(3).
8Lynch B K. Language Program Evaluation: Theory and Practice [M]. Shanghai Foreign Language Education Press, 2001.