英语词汇庞大丰富,人们喜怒哀乐的情感通常可用动词或形容词加以描述,而导致这些情感的原因的表述却离不开介词。介词数量微小,但功能灵活,它与各种词类巧妙搭配,表意多样。英语中表示情感原因的介词为数不多,本文拟对这些介词的用法特征加以简单辨析,以飨读者。 English vocabulary is huge and abundant. People’s emotional emotions can often be described by verbs or adjectives. The expression of the causes of these emotions cannot be separated from prepositions. The number of prepositions is small, but its function is flexible. It is ingenious with various word classes and has a variety of expressions. There are only a few prepositions in English that express emotional reasons. This article intends to make a simple analysis of the usage characteristics of these prepositions in order to readers.