中文摘要：

无标式时间背景复句是时间复句中的一种类型，其特点表现为：时间分旬表达纯粹的时间概念且没有特定形式标记；时间分句直接表明正分句所述事件发生的时间。本文描写了这一类复句中时间分句的语表形式，研究了时间分句所提供的时间信息类型，探讨了时间分句表达时间的特点，并就一些相关的问题进行了理论思考。

英文摘要：

The unmarked time-grounded compound sentence is a type of compound sentence of time,and its main features are that the time clause expresses the pure concept of time without special marks of form,and the time clause shows directly when the event in the main clause happens. This paper describes the forms of expression of the time clause in compound sentence of time of this type,studies the types of time message provided by the time clause,discusses the characteristics of how time clause expresses time,and ponders over some related issues.