Cohesion Characteristics Of Radio Advertising Research

In this thesis ,we study the cohesive devices in the advitisement text of broadcast. As an adevitisement only can be heard ,this type of text must be different from the adevitisement that can be seen.The thesis is devided into five chapters to study the characters of this text in the using of cohesive devices.In the first chapter,we mainly introduce some conceptions which are related with our thesis. Also,we introduce the study procession of discourse analysis.In the second chapter,we introduce the characters of reference using in this type of text.We study all the texts we have found,and we find that the exophora can conjunct a text together like the endophora does.Chapter three,in this part we mainly study the characters of substitution of this type of text.As we couldn't find enough examples , the conclusion we have arrived may not be so exactly.Among the examples we have found ,there is no one about verb substitution.Maybe this will be a defect of our thesis.In part four,we study the using of ellipsis in this type of text.In our opinion,ellipsis plays an important part in the advitisement text of broadcast.In this chapter,we study the characters in four respects.In the last chapter,we talk about the lexical cohesion of this type of text.We study this problem in six parts.They are :repetition,synonym,antonym,hyponym,collocation and conjunction.And we arrive at the main differerce at last.