It is widely accepted that ambiguity in syntactic structure results from the different syntactic levels and syntactic relations in an ambiguous syntactic structure. The view is based on the thought of structuralism linguistics, but the theory can only interpret the causes of ambiguous syntactic structures in surface, with less explanation power on the phenomena both of the cases that the ambiguities in ambiguous syntactic structures will be removed by substitute for some structural elements and the ambiguous structures comes from the semantics. So the causes of ambiguities are interpreted by t...