高考英语语一轮复习——虚拟语气课件(共15张PPT)

虚拟语气 Ｉ.概念:　虚拟语气是动词的一种特殊形式， 用来表达说话人的愿望，意图，建议，惊奇，设想等未能实现以及在说话人看来实现可能性很小的情况。 II.虚拟语气的特点： 虚拟语气表达的是与客观现实相反的观念。 III.虚拟语气的形式 １．非真实条件句 　２．“should”类 　３．“过去时及过去完成时态”类 非真实条件句 注: 虚拟语气中助动词be一律用were，不用was would do sth should/could/might would have done sth should/could/might would do sth should/could/might If sb did sth If sb had done sth If sb did sth should do sth were to do sth If 条件从句 主 句 1.与现在事实相反 2.与过去事实相反 3.与将来事实相反 1.I don’t have a car and I’m not happy. 2.I’m not a bird. I can’t fly. 3.He doesn’t take his teacher’s advice. He doesn’t pass the exam. 4.It is raining. We won’t go for a picnic. 表示与现在 事实相反 a) If I had a car, I would be very happy b) I would be very happy if I had a car, but I don’t have one. a) If I were a bird, I could fly b) I could fly if I were a bird, but I am not a bird, so I can’t fly. a) If he took his teacher’s advice, he might pass the exam. b) He might pass the exam but he doesn’t take his teacher’s