A Study On The Reason Compound Sentence Of “以p为由q”

"p为由q" is a compound sentence expressing causality.The internal semantic pattern is expressed as the interaction of "reason" and "consequence".It has strong subjectivity,and which is closely related to the ancient Chinese format of "以…为…".Based on the peculiarities of"以 p 为由 q",this article examines the "以 p 为由 q" format from four aspects.The article mainly includes five parts:The first part is introduction.It explains the research significance,defines the scope of the research object,reviews the previous researches,and explains the research methods.Among them,the literature reviewing mainly includes three aspects:the research status of "以…为…";the research status of causality;the analysis of cause and reason.This article also makes qualitative analysis for"以 p 为由 q" preliminarily.In the second part,it defines" 以 p 为由 q" as a compound sentence from the structure.First of all,the syntactic expressions of "以 p 为由","p",and "q" are discussed;secondly,it further proves that "以 p 为由 " is a compound sentence from the intrenal pause situation,the pre-adding components of "以 p 为由 q",and the reordering situation of "以 p 为由" and "q".Finally,it explains the performance of "以 p 为由" alone as a compound sentence and entering the sentence as an object and attributive in the form of a compound sentence.The third part from the semantic point of view,it explains the format meaning and semantic characteristics of "以 p 为由".Firstly,the paper discusses the semantic characteristics of the elements in "以 p 为由",the semantic characteristics and semantic tendency of "q";secondly,through the investigation of the causal relationship expression,subjective and objective judgment in the semantic meaning of "以 p 为由",the semantic collocation,the virtual and actual conditions,the performance of what has been and what has not happened,etc.,the paper summarizes the semantic characteristics of the format "以 p 为由 q",and concludes the format meaning:as the pretext,p aims at rationalizing q.Thirdly,the iconicity between causal sequence and time order principle in the form of "以 p 为由 q" is explained.Finally,the negative semantic preference and reasons of this preference are analyzed.The fourth part analyzes the pragmatic characteristics and functions of "以 p 为由 q".Firstly,the paper examines the subjective expression of" 以 p 为由 q";secondly,it analyzes the textual and interpersonal functions of the "以 p 为由 q";thirdly,it discusses the focus highlighting function of the "以 p 为由 q",which shows that the focus position can be located in the reason sentence or the consequence sentence;in addition,by describing the context in which "以 p 为由 q" appears,the news stylistic tendency and reasons are explained;Finally,it explains the pragmatic value of this format in the selection of communicative objects and communicative purposes.In the fifth part,the paper investigates the diachronic usage of "以 p 为由 q".Firstly,by reviewing the previous researches,it clarifies the structural characteristics of "以…为…";secondly,it describes the diachronic use of"以 p 为由 q" from Yuan Dynasty to Republic of China.Through searching and analying the combined use of "为由 ",the paper finds some formats similar to the "以 p 为由 q".Finally,it examines the pauses and orders of "以 p 为由 q" in ancient Chinese,and proves again that "以 p 为由 q" is a compound sentence.