7Laufer B. Beyond 2000:a measure of productive lexicon in a second language[A]. Eubank L, Selinker L, Sharwood Smith M. The Current State of Interlanguage [C]. Philadelphia:Hohn Benjamins Publishing Company, 1995. 25--36.
8Laufer B,Nation I S P. Vocabulary size and use:lexical richness in L2 written production[J]. Applied Linguistics,1995(3):307--322.
9Laufer B. The development of passive and active vocabulary in a second language,same or different? [J]. Applied Linguistics, 199862), 255--271.
10Jullian P. Creating word-meaning awareness[J]. ELT Journal,2000(1):37--46.
