The design for the room was of the fancy style popular in those days .of the fancy style days 在句子中作表语 “be of +名词(词组)” 表示主语的某种形状或特征 be of a(n) / the / the same “属于, 归于”be of the size / weight / height / age / colour / kindeg. All of the boys in the class are of the same age . be of + 抽象名词 = be + 该词的形容词eg. be of great value = be very valuableimportance importantuse usefulhelp helpfuleg. I am pleased to have been of help to you .=very helpful popular in those days 是形容词修饰 the fancy style .相当于定语从句,通常放在名词之后 = which is popular in those days .
