5Brown, C. & Payne, M. E. 1994. Five essential steps of processes in vocabulary learning [A]. In E. Hatch & C. Brown (Eds.), 2001. Vocabulary, Semantics and Language Education [C]. Foreign Language Teaching and Research Press & CLIP.
6Nation, I. S. P. 1990. Teaching and Learning Vocabulary [M]. New York: Newbury House.
7Nelson, D. L. 2008. A context-based strategy for teaching vocabulary[J]. English Journal, 97 (4): 33-37.
81kichards, J. C. 1985. The Context of Language Teaching [M]. Cambridge: Cambridge University Press.
