语法隐喻强调的是语义与语法形式的关系,名词化是语法隐喻的主要来源,也是科技英语最重要的特征之一。由于英汉两种语言在形态、意念上有所不同,名词化程度也不一样。所以就形成了科技英语文体理解中的陷阱之一。本文在语法隐喻转义的基础上,通过分析名词化过程中的变化本质及途径,以期能帮助我们更好地理解科技文体,并能准确地传达其中的含义。 Grammatical metaphor emphasizes the relationship between semantics and grammatical forms. Nominalization is the main source of grammatical metaphors and one of the most important features of S & T English. As the two languages ​​of English and Chinese are different in form and concept, the degree of nominalization is also different. Therefore, it formed one of the pitfalls in the understanding of science and technology English style. Based on the escalation of grammatical metaphor, this paper analyzes the nature and ways of change in the process of nominalization so as to help us understand science and technology better and to convey the meaning exactly.