求翻译：可以了解师生如何共同创造学习机会，而不只是教师如何教。“交际法”在当时极为盛行，不少目光投向了真正意义上的课堂“互动”及其给学生提供的语言交际机会。例如Fanselow(1977)建立了综合性语言交际系统，可用来分析不同课型的课堂话语；Long等(1976)在分析了外语课堂话语后发现，小组式互动比齐步走(lockstep)式互动更能促进学生参与交际以及用多种言语行为进行交际。是什么意思？

Teachers and students can learn how to work together to create learning opportunities, and not just teachers how to teach. "Communicative approach" is extremely popular at the time, many look to real classroom "interaction" and its communication gives students the opportunity. For example Fanselow (1977) established a comprehensive communication system, available to classroom discourse analysis of different course type; Long (1976) in the foreign language classroom discourse analysis found that of group interaction than the forward March (lockstep)-interactive can better promote the participation of students in communication, and communication in a variety of speech acts.