语言及语言教学一直是语言学家及语言教师讨论的热门话题，因为这项讨论的结果在很大程度上会直接影响到我们的实际工作——外语（或第二语言）的教与学。近一个世纪以来，由此产生了不少令人振奋的教学思想、教学理论及教学方法，目前最具影响力的可能要数交际法了。近年来， Language and language teaching has always been a hot topic for discussion among linguists and language teachers, because the results of this discussion will, to a large extent, directly affect our actual work—teaching and learning in foreign languages ​​(or second languages). In the past century, many exciting teaching ideas, teaching theories, and teaching methods have emerged. At present, the most influential may be the number of communicative methods. In recent years,