本文从汉日对比的角度对汉语可能补语的结构和语义进行分析,并以此为基础,从语义扩展的角度对趋向补语“起”以及由“起”构成的可能补语进行了语义分析。文章指出,汉语语法发展出像“买不起、瞧得起”这种通过表示“结果”能否发生来表示“行为”能否发生的格式,是汉语的“行为—结果视角”和“事实可能视角”合力作用的结果。 Based on the analysis of the structure and semantics of Chinese possible complements from the perspective of the contrast between Chinese and Japanese, this paper makes a tentative study on the possible complement of the complement of “tao” and “from” from the perspective of semantic expansion Semantic Analysis. The article points out that the Chinese grammar has developed “Chinese behavior” as a result of the Chinese “behavior can not be expressed as ” can not afford to buy, afford “can express the occurrence of ” behavior Perspective “and ” Possible Perspectives "the result of synergy.