The Logical And Semantic Analysis Of The Union Structure Complex Sentences In Headlines Of Newspaper

The complex sentence is an important topic been concerned by both of Linguistics and Logic. Inthe headlines of newspaper, although the expression of the complex sentence is relatively less thanthe single sentence, they have distinct characteristics. Generally, clause of the complex sentence inthe headlines of newspaper is short, and the parallel class of complex sentences often omits therelated word. Many cases, complex sentences of newspaper headlines use of rhetorical devices, allof these make the expression of complex sentences in newspaper headlines unique. So the study ofthis topic has some theoretical and practical values.Complex sentence contains two or more clauses, whose meaning is relevant and the structure doesnot contain. Our paper chooses the logic features of the complex sentences as the object of study.There are at least four semantic types in joint complex sentence, parallel relationship, linkrelationship, progressive relationship, selection relationship and so on. Among them, complexsentences of parallel relationship, link relationship and progressive relationship express theconjunctive relations between propositions; complex sentences of selection relationship expressthe disjunctive relations. Because of the semantic differences, the conjunctive relations ordisjunctive relations in the joint complex sentences of newspaper headlines have subtle differencesbetween different types of semantic. For example, conjunctive relations in the parallel relationshipcomplex sentences have no sequence, but conjunctive relations in the link relationship andprogressive relationship have sequences. In short, the most important feature of the expressions ofthe complex judgment by joint complex sentences is the accurate use of related words, becauserelated words are the basic symbol to reflect logical relations between clauses.My paper have explored the rhetorical features in the complex sentences of newspaper headlines,also the logical basis of rhetoric. The purpose of rhetoric is improving the effect of expression, butit must be based on the logic. Rhetoric often starts from the words, sentence and rhetoric devices,also the newspaper headlines. The vocabulary rhetorical features are mainly reflected in thefollowing areas, first, often use words of opposite semantic; second, temporary creation and use ofantonyms; third, appropriate use of the transfer semantic of word. The sentence rhetorical featuresare mainly reflected in the following respect, sentence rhetorical often make the clauses ofcomplex sentences have same syntax structure, to constitute a metaphor or parallel speech devices;and so on.At last, I have tried to use the logic formulas characterize the rhetoric devices. For example, usethe formulas “A（x，y）∧F（x）�'F（y）” characterize the metaphor devices.