题目内容

4．---We didn't take part in the social activity yesterday．
---I     ，either，if my teacher hadn't reminded me of it．（　　）
A．didn'tB．hadn'tC．wouldn'tD．wouldn't have

分析 --我们昨天没有参加社交活动．
--如果老师没有提醒我的话，我也不会参加了．

解答 答案：D
根据题干中谓语动词didn't take part in 和时间状语yesterday可知，谈论一件发生在过去的事情，所以if条件虚拟句中主句的谓语动词形式应为would/could/might/should have done．故选D．

点评 if条件从句的虚拟情况有三种形式：①如对现在情况假设：if条件从句的谓语动词形式为过去式（be为were），主句的谓语动词形式为would/could/might/should do ②如对过去情况假设：if条件从句的谓语动词形式为 had done，主句的谓语动词形式为 would/could/might/should have done ③如对将来情况假设：if条件从句的谓语动词形式为were/did；should do；were to do，主句的谓语动词形式为would/could/might/should do．解此类题的关键是要判断对什么时间的假设，再而做出正确的谓语动词形式．

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