| Texts are composed of different sentences,and sentences among sentences are connected with each other.And the progression of the text is created by connections and changes,thus the coherence of a text comes into being.And the gradual extension of sentences within a text grouped into the pattern of thematic progression.Scholars at home and abroad have made lots of researches on the theory of thematic structure and thematic progression pattern.Many researches made by scholars are related with the news,advertisements,academic thesis and politics and so on,but only few researches are deal with the theory of thematic structure and thematic progression with the political speeches.Political speeches require the speaker the ability of having appealing words,which is easier for audiences to accept.In this way,audiences can be attracted and affected.Obama,as the first African-America president,has the skill of persuading people into his opinion.And most of his speech materials are used for the field of academic research by students.And twenty examples of weekly addresses are chosen to be analyzed to apply into the theory of thematic structure and the pattern of thematic progression,as well as his traits of speeches can be concluded.The purpose of the thesis is to analyze Obama’s weekly address on the basis of the theory of thematic structure and thematic progression pattern,which,in a way,proves the applicability of the theory and makes a conclusion of the characteristics of Obama’s weekly address.In this way,audiences have the ability to understand related address in a easier way.And the similarity of this kind of thematic progression patternon political speeches can be widely extended,thus a successful and forceful address can be achieved. |