根据Halliday和Quirk等人的有关理论来说明超音段音位与主题意义和信息结构之间的关系,发话者根据交际意图,可对同一话语配置不同的调核、调群、声调等超音段音位来显示信息单元或信息中心,以获取话语的主题意义。 Based on the theories of Halliday and Quirk et al., We illustrate the relationship between supersonic phoneme and thematic meanings and information structures. According to the communicative intention, the speaker can arrange different nuclei, tone groups and tones for the same discourse Segment phoneme to display the information unit or information center, in order to obtain the theme of the discourse.