原因理由的表达是指对原因、理由、动机进行说明的表达方式。日语中这一表达方式相当发达。不同性质的原因常用不同的方式表示,不同的方式还常常表现出句法结构上的区别。其表达方式远远多于汉语,多达三十几条,而且表现得更为复杂,要求得更为严谨,区分得更为仔细。本文将列举出日语中所有的表示原因理由的表达形式,通过主客观的基本概念及结果的好坏、消极与积极、接续方式、词性等方面,试图找出它们的特点特征,给予归纳总结。 Reason The reason is the expression of reasons, reasons, motivations to explain the expression. This expression is quite well developed in Japanese. The reasons for the different nature of the commonly used different ways that different ways often show the difference between the syntax of the structure. Its expression is much more than that of Chinese, as many as thirty, and the performance is more complex, more stringent requirements, the distinction is more carefully. This article will list all the reasons for the expression of the reasons for the form of expression in Japanese, through the subjective and objective basic concepts and the results of good and bad, negative and positive, continuity, part of the speech and so on, trying to find out their characteristics and to give summary.