由于交际任务在培养学生使用语言进行交际、促进学生语言习得和语言发展等方面起着关键性的作用,所以交际任务在外语课堂上的应用在外语教学界受到越来越多的重视和研究。本文拟就课堂任务的特点作用、任务教学法、交际任务与二语习得的关系等方面进行探讨,指出任务教学法在我国外语教学环境下的应用研究有着深远的现实意义和推广价值。 Because communicative tasks play a key role in cultivating students ’use of language to communicate and promote students’ language acquisition and language development, the application of communicative tasks in foreign language classrooms has received more and more attention and research in foreign language teaching . This article intends to discuss the characteristics of the task of the classroom, the task teaching method, the relationship between communicative tasks and second language acquisition, and so on. It points out that the application of the task teaching method in our foreign language teaching environment has far-reaching practical significance and promotion value.