| In Chinese, there are a large number of "two-noun-phrase" sentences, which basic format is: NP1 + NP2 + VP. This kind of sentences are called "subject-predicate -predicate" sentence in traditional grammar theory, and people use the "subject- predicate" form to analyze the structures of these sentences. However, this grammar form is from western grammar system and not completely suitable for Chinese, so that it can not draw a satisfied conclusion when used to analyze Chinese.Chinese is a "topic-prominent" language, and the "topic-comment" structure is suitable for Chinese sentences. In this article, the "topic" concept is introduced into Chinese to analyze the"two-noun-phrase"sentences.In the first chapter, the article presents the concepts of the "topic", "second topic" and "subject", at the same time, their characteristics, differences and relations are also described. Based on the perspective of the "topic", the "two-noun-phrase" sentences can be called"two-np-topic"sentences: NP1 is called Topic and NP2 is called Subject.From the 2nd chapter to the 4th chapter, some transforming forms for these sentences are analysized. In the 2nd chapter, NP1NP2'order transformation is developed. The article not only gives the differences between the original sentences and transformed sentences, but also describes the effects of phonetics, syntax, semantics and pragmatics on the transforming. In the 3rd charpter, the article analyzes the transformation of sentences without NP, espicially the absence of NP2. The absence of NP2 is not free, which has different functions between static sentences and dynamic sentences. In the 4th charpter, the article also analyzes the absence of Empty Word including "de", "bei", "lian", and points out differences caused by this absence while transforming sentences.By the analysis in this article, the characteristics of "two-np" sentence are drawn, which have great contributions to Chinese theory and Chinese teaching as a Foreign Language. |