分析 should the chance arise.在以下句子中的成分和用法
问题描述：
分析 should the chance arise.在以下句子中的成分和用法
With the hotel getting a higher portion of your booking,you’re a more valuable customer to them and will be higher up the list to move to a better floor should the chance arise.
答
这是虚拟语气的省略,补充完整为if the chance should arise,you’re a more valuable customer to them and will be higher up the list to move to a better floor. 所以这部分在句中作状语.