"When The Time" And The Relevant Sentence Structure

This paper is about "当X的时候" structure in the plane of the syntactic,semantic and pragmatic investigation and research. Besides the introduction and theconclusion, this article is divided into five chapters.The first chapter mainly analyzes the preposition "当","X" in the middle of thecomposition and the rear word "时/的时候" respectively of the structure of "当X的时候"."当" is used to interface component lead time word。Though it is a functionword, it is in the process of real and virtual,.The meaning of "当" itself still has time,so in combination with other words will be relatively limited to be the exact time.Entering the structure in the middle of the composition of X is in the majority withsentence form, especially the small sentences."时/的时候" is in the process ofgrammaticalization.As well as table time relationship,it can also be said conditionsrelation and assumption relation.The second chapter is about "当X的时候" syntactic distribution and function."当X的时候" on the syntactic distribution has three position, at first, in the sentencesand at the end of the sentence."当X的时候" syntactic distribution factors are many,affected by the complexity of on syntax, by sequential of on semantics, by the topicin pragmatics."当X的时候" is generally a sentence first modifiers on the syntacticfunction, also placed behind the "is" as the object.The third chapter analyzes the looming problems "当X的时候", mainlydiscusses "当","时/的时候" looms and looming rule and its mechanism.The fourth chapter is about the relationship of the time between the mainsentence and "当X的时候". Its relationship with the main sentence of time, notonly can be at the same time, also can be the first and after the time.The fifth chapter discusses "当X的时候" with the main sentence semanticrelations and pragmatic functions.Besides time relationship, with the main sentenceit can also indicate conditions, assumptions, causal, twist and shunchengrelationship."当X的时候" also has certain textual functions in pragmatics.