Semantic and syntactic analyses for english sentences with structure of parasitic gap

Semantic and syntactic analyses for English sentences with structure of parasitic gap have not been seen, in order to solve this problem, the work of this paper is: 1. Syntactic analyses: introducing functional node based on the syntax-semantics interface; based on the operations of selection, merge, and move in the Minimalist Program, establishing the syntactic parse tree with p-signature. 2. Semantic analyses: for the phonologically null traces in the sentence, extracting the lambda-expressions, introducing the semantic augmentation template, obtaining the normal form of lambda-expression through lambda-calculus. 3. Establishing semantics-syntax interface for sentences. The interface indicates the correspondence between the results of semantic and syntactic analyses.