有一部分成语,是从古代诗文中流传下来的,它保存了古代汉语的一些特点。留意把握这些特点,对初学者学习古代汉语常识有一定的帮助。例如,从成语里,我们就可以学到古汉语的词类活用和宾语前置等知识。下而举例略加说明。一、名词用为动词。如:步人后尘 Some idioms, which have been passed down from ancient poetry, have preserved some of the characteristics of ancient Chinese. Pay attention to grasp these characteristics, for beginners to learn ancient Chinese common sense has some help. For example, from the idioms, we can learn the ancient Chinese part of speech and object usage and other knowledge. The following example shows a little. First, the noun is used as a verb. Such as: walking footsteps