——教学资料参考参考范本—— 【资格考试】2019最新整理--(备考辅导)英语词汇学系列讲座（英 9 ______年______月______日 ____________________部门 1 / 4 Chapter 9 English Idioms 1. Characteristics of idioms 1） Semantic unity Each idiom is a semantic unity. The semantic unity can be reflected by the fact that the meaning of an idiom is very often not the total sum of the meanings of the constituent words. The semantic unity can also be shown in the illogical relations between the literal meanings of the constituent words and the meaning of the idiom. 2） Structural stability Structural stability means that the structure of an idiom usually remains unchangeable. In other words, the constituent components of an idiom can not, generally speaking, be replaced. 2. Classification of idioms 1） Idioms norminal in nature: They function as nouns in a sentence. 2） Idioms adjectival in nature They function as adjectives in a sentence. 3）Idioms verbal in nature They function as verbs in a sentence. 2 / 4
【资格考试】2019最新整理--(备考辅导)英语词汇学系列讲座(英 9
