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 / kind…
eg. 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 valuable
importance important
use useful
help helpful
eg. 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 .
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