This article reports on an empirical study on the acquisition of Chinese imperfective markers ("zai," "-zhe[subscript P]" and "-zhe[subscript R]") by English-speaking learners at three proficiency levels. Compared to English, Chinese has a richer imperfective aspect in terms of markers (forms) and features (meanings).…

The perfective aspect marker in Chinese is partly functionally similar to inflectional suffixes in Indo-European languages but is non-inflectional and lexical in nature, lying thus at the semantics-syntax interface. This provides us with the opportunity to compare directly the syntactic and semantic constraints during second language (L2) sentence…

This case study examined the vocabulary gains made by an adult learner of English as a Second Language as a result of performing four communication tasks. It found that explicit negotiation of word meaning appeared less deterministic of posttest improvements than use of words in the process of completing the task. (13 references) (MDM)