rheme

n.

表位，述位（指为主体提供新信息的句子成分）；

1. Mathesius named the starting component as theme,and named the other components as rheme,at the same time,the theme showed known information,the rheme showed new information.
   他把这类起点成分称为主位，把其他部分称为述位，并指出，主位一般表示已知信息，述位一般表示新信息。
2. Rheme, on the other hand, is the part of a sentence which adds most to advancing the process of communication and has the highest degree of communicative dynamism.
   述位，另一方面，是一个组成部分，一句是增加最与时俱进的过程中的沟通和具有最高程度的交际动力。

On Rheme and Kontrast
Theme-Rheme patterns in L2 writing
More on Theme and Rheme
On Theme/Rheme as Unit of Translation
Relation Between Theme/Rheme System and Information System in Textual Function
Theme and Rheme in the Thematic Organization of Text: Implications for Teaching Academic Writing
The Relationships Among Theme and Rheme,Cohesion,and Coherence of English Writing
The Inference-Boundary Model: Reinterpreting Theme and Rheme.
The Russian Genitive of Negation: Theme-Rheme Structure or Perspective Structure?
Coherence in English as a Second Language undergraduate writing: a theme-rheme analysis