成语,是相沿成习、精辟而简洁的定型词组或短语,它们是语言中的精华。成语的特点,一是定型性,形式固定,不能任意改变其构成成分;二是习用性,在交际中经常使用,不论口头或书面,皆能增强表达力,增添文采,具有旺盛的生命力;三是大多来自古代典籍,有出处,有典故;四是有统一而完整的 Idioms, is a phase of learning, incisive and concise set of phrases or phrases, they are the essence of the language. The idioms of the characteristics of the first, stereotypes, the form of fixed, can not be arbitrarily changed its composition; the second is the habitual, often used in communication, both verbal or written, can enhance the expression of power, add literary talent, with strong vitality; three Mostly from the ancient classics, there are sources, allusions; Fourth, there is a unified and complete