一、前言二、习得与学习语言习得理论的研究对于中国的外语教学的作用是毋庸置疑的。各种教学方法、教材以及教学理念都在其中寻找理论根据的支撑。所以,二语习得理论研究水平的高低直接影响外语教学。20世纪初期行为主义的创始人华生以及其斯金纳用操作条件反射(operational r I. Preface II. Acquisition and Learning The study of language acquisition theory has no doubt about the role of foreign language teaching in China. A variety of teaching methods, teaching materials and teaching philosophy in which to find the basis for the support of the theory. Therefore, the level of second language acquisition theory directly affects the foreign language teaching. Watson, the founder of behavioralism in the early twentieth century, and Skinner used operational optics