1Maiguashea, R Teaching and learning vocabulary in a second language : Past, Present and future directions [J].The Canadian Modern Language Review, 1993,50( 1 ), 83-100.
2Laufer. B. & Hulstijn J. H. "Incidental Vocabulary Acquisi- tion in A Second Language:The Construct of Task:Induced Involvement Load" [J].Applied Linguistics, 2001 ( 22 ).
3Huckin,T.& Coady,J.1999 Incidental vocabulary acquisition in a second language:A Review.SSLA, 21.
4Pigada,M.,& Schmitt,N. (2006).Vocabulary acquisition from extensive reading:A case study. Reading in a Foreign Language, 18,1 - 28.
5Nation,P.Teaching and Learning Vocabulary [M].New York: Newbury House Publishers, 1990.
6Mondria J,Wit-de BoerM. The effects of contextual rich- ness on the guess ability and the retention of words in a foreign language[J].Applied Linguistics, 1991, ( 12 ) :249-267.
5Baddeley, A. 1997. Human Memory: Theory amd Practice (rev edn. )[M]. Hove (UK): Psychology Press.
6Craik, F. & E. Tulving. 1975. Depth of processing and the retention of words in episodic memory [ J ].Journal of Experimental Psychology 104: 268-294.
7Craik, F. I.M. & R.S. Lockhart. 1972. Levels of processing: A framework for memory research [ J].Journal of Verbal Learning and Verbal Behavior 11: 671-684.
8Ellis, R. 1994. The Study of Second Language Acquisition [ M]. Oxford: Oxford University Press.
9Eysenck, M.W. 1978. Levels of processing: A critique [J]. British Journal of Psychology 69: 157-169.
10Gass, S. M. & C. G. Madden. 1985. Input in Second Language Acquisition: Series on Issues in Second Language Research [M]. New York: Newbury House Publishers.
