外语教学的目的，是培养学生在言语中掌握语言现象；在言语中提高理解话语的能力；在语言能力和言语能力提高的基础上，正确地使用语言。因此，在外语教学中应处理好语言和言语，习得与学习的关系，把握各阶段重点，选择恰当的教材，从而提高外语教学的质量 The purpose of foreign language teaching is to cultivate students to master the language phenomenon in speech, to improve the ability to understand utterances, to use language correctly based on the improvement of language ability and speech ability. Therefore, in foreign language teaching, we should deal with the relationship between language and speech, acquisition and learning, grasp the key points of each stage, select the appropriate teaching materials to improve the quality of foreign language teaching