知识梳理 1. be to do结构表示职责义务意图约定可能性或注定要发生的事情All these things are to be answered for.所有这一切都应得到偿还(含有注定要发生之意)He and I are to meet at the railway station tomorrow.我和他明天要在火车站见面(约定或计划)[思维拓展] 表示将