是的。be of后可接value, importance, use, help, significance, interest, benefit等一些抽象名词,这样的结构用来说明句子主语所具有的作用、重要性或意义。
如:They are of great help to learners of English.他们对英语学习者有很大帮助。
The book will be of great value to students of history.这本书对学历史的学生将很有用。
在“be of + 抽象名词”结构中, 其意义就相当于 “be + 与该抽象名词同词根的形容词”。如:
be of value→be valuable, be of help→be helpful
以上各例句可转换为:
They are very helpful to learners of English.
This book is very valuable to students of history.