Readers 读者
Boundary tone and focus tone
边界调和焦点调
Feng Shi 石锋; Ping Wang 王萍
Abstract 摘要
he authors pointed out the defects in the definition of boundary tone by Crystal (1997). The observation on duration ratio and fluctuating scale of pitch shows that although boundary tone and focus tone are overlapped sometimes, they have different domain that can be separated from each other. For example, boundary tone prefers to raise the top line of the pitch interval, while focus tone prefers to lower the bottom line. Boundary tone appears at every boundary of the utterance while focus tone at given positions only. The present paper demonstrated that it is necessary and feasible to distinguish between boundary tone and focus tone in the analysis of intonation.
本文指出Crystal（1997）的边界调定义是有缺陷的。音高起伏度和时长停延率的实验分析表明：边界调和焦点调虽然叠加共现，却可以划分出各自不同的作用域。如：焦点调重在调域上线的提高；边界调重在调域下线的降低。边界调在每个边界都有，是全局的；焦点调只在特定的位置，是局部的。本文论证在语调研究中划分边界调和焦点调的必要性和可行性。
Subject Keywords 关键词
Boundary tone 边界调 Focus tone 焦点调 Intonation system 语调系统 Fluctuating scale 起伏度 Duration ratio 停延率