He has a large number of reference books at his disposal 他有大量的参考书可供使用。
2.
I need a large number of reference book 我需要大量的参考书。
3.
A large number of reference books 大量的参考书
4.
The lecture is not entirely teacher - centered . students are encouraged to raise questions and join discussions and they have to read quite a few materials themselves after the class 老师讲课只是提纲挈领，更多的需要学生提问并参与讨论，同时还要在课下看大量的参考书。
