假设是人类语言重要的语法范畴,虽然假设句只出现在分句中,但也是一种重要的句子功能。虽然各种语言的假设句在句法形式上表现各异,但从本质上看,假设特征必须通过移位、添加假设标记、重叠等句法手段,在句子的句首、谓头、句尾三个句法敏感位置实例化,在句子的表层结构得到呈现,形成假设句。各种语言假设句的差异是假设特征线性实例化的结果,可以推导出来。
Assumption is an important grammatical category of human language,though only appearing in clau-ses,but also an important function of the sentence.Although the syntactic forms of the hypothetical sentences are different in various languages,but in essence,the features of assumption must be shifted,added the hypothesis,o-verlap and other syntactic means.At the beginning of a sentence,the predicate head,the sentence end of three syn-tactic sensitive location.In the surface structure of the sentence,the formation of hypothetical sentences could be shaped.The difference of various linguistic hypothesis sentences is the result of the hypothesis,which could be de-rived.