重点短语讲解：
1. inform…of/that …告知某人某事
[原句]We regret to inform you that our library will be closed next Wednesday, Thursday and Friday for the sports meeting. (p16)
如：They would inform him of any progress they had made. 他们会通知他们取得的任何进展。
拓展：
inform sb. that/sth. 告诉/告知…… inform sb. +疑问词+to do 告知某人做…… keep sb. well informed of…使……及时了解……
