| This thesis profits from the literature view "the internal research" and "the exterior research" of American literary theoretician Rene Wellek and Austin Warren, we also have referred to "internal and external elements of language" proposed by Switzerland linguist F. de Saussure, as well as the research method of "internal linguistics" and "external linguistics", carrying on the analysis discussion to the letter words' research condition from the angles of crosswise (exterior) and longitudinal (interior)in mainland. "Exterior research" of letter words refers to relations between the letter word and social, cultural and other discipline, the letter words' "Interior research" is takes the letter words one language phenomenon, embarks the inspection research which from the linguistics inherent law carries on, researching on letter words' structure system. While researching on letter words' regularity and how to enter the dictionary independently.The introduction mainly introduced the occurrence and the development survey of letter words, summarized the research situation of letter words in academic circle roughly, and made the brief elaboration to this topic's research situation at present, proposed the basic mentality of this thesis.Chapter one, research on definition of letter words. First inspected the research which carries on to the name and defines of letter words of researchers, and has analyzed the viewpoint and view of relations between the letter words and foreign words, the letter words and abbreviate words, the letter words and network words, inquiring into the angle of view and the way to define the letter words in research field, ultimate analysis in letter words attribute question research situation.Chapter two, exterior research on letter words. In the problems of social factor of letter words, letter words and media, letter words and other subjects, attitude of understanding and awareness of letter words, the researchers conducted the research method from different angle of view. This chapter inspected the exterior research condition of the letter word, inquiring the rule. Chapter three, interior research on letter words. Studies and analyzes the consensus and the objection of research method on language cause of letter word, the letter words' classification, the letter words' pronunciation, the letter words' meaning, the letter words' grammar as well as the letter words' regularity and how to enter the dictionary in academic filed in the letter words have produced. In these aspects, the research of letter words has made great progress, but also has some insufficient and dispute, like letter words' grammar and pronunciation research.Chapter four, research on letter words' regularity and how to enter the dictionary. Mainly analysis the research condition of letter words' regularity and how to enter the dictionary in research field, and elaborates the research situation of letter words and Chinese information processing briefly.The conclusion part summarizes the achievement and the insufficiency of letter words research, and has made the forecast to the next step research prospect. |