structural linguistics
2.Forming a connecting link in the linguistics development,Leonard Bloomfield played an very important role in the history of structural linguistics study.
3.With regard to the study of the English sentence patterns, Hornby (1959:26-97) puts forth 25 sentence patterns, adjective patterns being some of them. Since then, a great deal of researches has been done on the English syntactic constructions from the points of view of traditional grammar, structural linguistics, generative linguistics and functional linguistics, and each of them has its own way of treatment and has made its own contribution.
4.This thesis is mainly based on the Dai language material of four syllable expressions from Xishuang Banna. It applies theories and methods of structural linguistics, cultural linguistics and chaos theory to analyse systematically the characteristics and functions of four syllable expressions in Dai language, to discuss the linguistic quality of four syllable expressions in Dai language and to explore the relation between four syllable expressions in Dai language and Dai culture.

