1. 这本参考书对我们的研究很有用。
This reference book is very useful to our study.
2. 这本参考书对我有用处吗？
Is this reference book of any use to me?
3. 他有大量的参考书可供使用。
He has a large number of reference books at his disposal.
4. 这份资料是从各种参考书中摘出的。
The information is culled from various reference books.
5. 托尼上课时不使用参考书。
Tony used no reference books in class.
6. 这本书被用来做参考书。
The book is used as a reference book.
7. 本阅览室的参考书不得私自带出。
No reference books are to be taken out of the reading room without permission.