__before we leave the day after tomorrow,we should have a wonderful party
问题描述:
__before we leave the day after tomorrow,we should have a wonderful party
答案是were they to arrive 还有 Had they arrived Were they arriving Would they arrive
一点这个倒装句的助词提前为什么是were是过去式 ,不是原形are 不是had或 did
二点 to arrive arrived ariving arrive分别在什么情况下用
答
were they to arrive 在这里是虚拟条件句,从时间状语the day after tomorrow(后天)来看 是对将来的虚拟, 所以选这个它等于If they were to arrive... Had they arrived 是对过去的虚拟, 等于 if they had arrived,...虚拟条件为什么用 were这个是过去式 但不定式to arrive表将来做的,就是
将来的虚拟中虚拟条件句有三种形式
were + to + 动词原形
should + 动词原形
动词过去式
这些都是虚拟语气的特定形式, 记住就是,不要按常规用法来推