Chapter 1: Introduction1.Linguistics: 语言学It is generally defined as the scientific study of language. ( Linguistics studies not any particular language ,but it studies language in general)2.General linguistics:普通语言学 The study of language as a whole is called general linguistics.(language is a complicated entity with multiple layers and facets )3.Language: Language is a system of arbitrary vocal symbols used for human communication.4.descriptive (描述性):A linguistic study aims to descri