Yixing Accent Mandarin Speech Research

China is a country of many dialects.As the vigorous promoting of Putonghua,dialect and Putonghua will inevitably contact frequently thus produce a series of changes.Putonghua with Yixing accent is the product of Yixing dialect and Putonghua after they naturallycontact.It is the local variant of Putonghua and a kind of interlanguage in Putonghua.This thesis studies Putonghua with Yixing accent.With the use of research about structural linguistics and social linguistics,we apply the system evolution theory and interlanguage theory to the practice of yixing accent of Putonghua study.Through the research of the real language materials,we can point out the errors in Yixing accent Putonghua and Yixing citizens' difficulties in learning Putonghua.The introduction part reveals the situation that the current dialect research pays more attention to "pure" dialect and less attention to the "impure" langurage which is the product of dialect and Putonghua.Through the research methods of structural linguistics,chapter 1 studies comparatively between Putonghua with Yixing accent and the initials?finals?tones system of Putonghua in order to find their differences and similarities.This chapter also tries to analyze the deep reason of the differences and lays the foundation of the following study from the perspective of evolution in dialect.Chapter 2 uses social survey method to collect Yixing accent Putonghua corpus.The corpus is divided into three different levels according to the degree of Yixing accent to point out the difficulty in learning Putonghua.Through the method of structural linguistics,this chapter analyses the Yixing accent Putonghua pronunciation errors to explore its causes.Chapter 3 draws lessons from professor Wang Ping's?Shanghai accent Putonghua preliminary exploration?,on the basis of the proposed several indicators,we will analyse Yixing native speakers' note values difficulty and sound class difficulty in learning Putonghua on initials?finals?tones system angle.Then put forword some efficient methods to improve the level of Putonghua of the residents in Yixing.From different perspectives,we have a study on the different levels of Yixing accent of Putonghua.This study broadens the research scope of dialectology and helps us to know the language acquisition process and evolution direction,thus to provide theoretical basis for the establishment of the language policy.The research of local Putonghua,can also provide data and basis for establish of the dialect recognition,second language acquisition and the pronunciation of the speech recognition model.The study on Putonghua with dialectal accent produced in the process of learning the Putonghua will find more stubborn component which is not easy to lose in this language.Finding out the difficulties in studying Putonghua has an important significance on popularization and specifications of the Putonghua in Yixing dialect district.