1Krashen S. Second Ltmguage Acquisition and Second Language Le arning[M]. Oxford: Pergamon, 1981.
2Oxford R,D Crookall.Research on language learning strategies: Methods,findings,and instructional issues [J].The Modern Language Journal,1989,73(4) :404-419.
3Little wood W.A utonomy in Communication and Learning[M].Cambridge : Cambridge University Press, 1996.
4Weinstein C, Mayer R. The Teaching of Learning Strategies[M]. New York: Macmillan,1986.
