一、“ (be)+of+名词”结构表达的意义 1. ”(be)+of+名词”结构中的名词是抽象名词时，相当于其中名词所对应的形容词的意思，说明被修饰词具有某种特征或属性。常用的名词有use/importance/help/value/interest/quality/service/benefit/necessity等。例如： I don’t want to hear what you are saying. It is of no interest to me. 我不想听你说,我对此不感兴趣。(of no interest=not interesting) Doing morning exercises will be of benefit to your health。 做早操对你的健康有利。 Coal is of great importance to the development of industry。 煤对工业发展是相当重要的。（of great importance=very important） 2。 ”(be）+of +名词"结构中的名词表种类、数量、度量等时，表示不同的人或物的共同特征，此时名词前通常带有冠词。常用的名词有size/kind/type/price/height/depth/width/length/weight/age/shape/colour等。例如: We are of the same age。 我们同岁。 The twin sisters are of a size and the skirt fits each of them exactly. 双胞胎姐妹的身材一样，这件裙子两个人穿都非常合适。 Machines are of different types and sizes。机器有不同的型号和规格。 3. "(be)+of+名词"结构可以表示主语的根源关系,此时的名词多是表示亲属、血统、种族、国籍及出处的名词，常用的名词有family/blood/race/origin等.如: We are of the same blood。 我们是同一家族。 They are of noble race. 他们出身名门。 二、“ （be)+of+名词”结构的句法功能 1。 作表语。例如： Don't throw anything that may be of use。 不要把任何有用的东西扔掉。（=Don't throw anything that may be useful.） Flowers are of many colours. 花的颜色很多。 New Zealand wine is of high quality and is sold all over the world。 新西兰葡萄酒质量很高,行销全世界。 2。 作定语.例如: Your sister is a girl of wisdom. 你妹妹是一位有智慧的女孩。（=Your sister is a wise girl。） We don’t think there is anything of interest in your pictures. 我们认为你的画并没有什么有趣的地方.（=We don't think there is anything interesting in your pictures。) 3。 宾语补足语。例如： He found himself of absolutely contradictory points of view。 他发现自己处于完全矛盾的观点之中. I would like to begin by poingting out that ’traditional skills and ways of life' are not antomatically of one country， but of a culture or community. ——用法是be of +n.表所属 Some technologies, such as weapons of mass destruction， are of negtive impact。 --be of 表所属 本文来源：https://www.wddqw.com/doc/5766c164c9aedd3383c4bb4cf7ec4afe04a1b1b6.html