Unit2SectionⅣGrammar＆Writing课件新人教版选修6.ppt

Section Ⅳ;　　虚拟语气(Ⅱ);一、虚拟语气用于非真实条件句 第一单元详细讲述了虚拟语气用于与现在事实相反和与将来事实可能相反的非真实条件句，所以本单元学习与过去事实相反的非真实条件句，主句和从句的形式如下：;If he had won the game, he wouldn’t have been so sad. 如果他赢得比赛的话，他就不会那么悲伤了。 If you had taken my advice, you would not have failed in the exams. 如果你当时听取我的忠告，你考试不会不及格的。;[考题印证1];1－2(2010·天津高考)—John went to the hospital alone. —If he ________ me about it，I would have gone with him. A．should tell B．tells C．told D．had told 解析：选 。此题考查虚拟语气。在虚拟条件句中，如果表达与过去事实不符的情况，if从句的谓语应使用“had＋过去分词”的结构。故选D项。;二、错综时间虚拟语气 当条件状语从句表示的行为和主句表示的行为所发生的时间不一致时，被称为“错综时间条件句”，动词的形式要根据它所表示的时间作出相应的调整。 If she had studied hard, she would be a college student now. 如果她努力学习了，她现在就是一名大学生了。(从句说明过去，主句说明现在);If I were you, I would have taken his advice. 如果我是你，我就会接受他的建议了。(从句说明现在，主句说明过去) [点津]　错综时间虚拟语气还有一种情况就是事实和虚拟假设的混合，这样的句子不仅仅是时间的不同，更重要的是事实和假设的混合。 I would have gone to Beijing with her last week, but I was fully occupied. 上周我本来会和她去北京的，但我太忙了。;[考题印证2];2－2(2010·安徽高考)Bob would have helped us yesterday, but he ________. A．was busy B．is busy C．had been busy D．will be busy 解析：选 。考查时态。would have done表示本来要做某事，可是实际上并没有做，是对过去事情的虚拟。此处but说明实际情况。故用一般过去时。;三、含蓄虚拟语气 虚拟条件隐含在上下文中或通过without, or, but, otherwise等表示，这时可根据语境及具体意义采用虚拟形式。 What would I have done without you? 如果没有你我该怎么办呢？;But for your help, we couldn’t have finished the work on time. 如果没有你的帮助，我们就不可能按时完成工作。 He was very busy yesterday, otherwise he would have come to the party. 他昨天太忙了，否则的话，他就会来参加聚会了。 A gentleman (If he had been a gentleman), he wouldn’t have done so. 一位绅士是不会那样做的。;[考题印证3];解析：选 。考查虚拟语气。英语中， without, with, or, otherwise 等可构成含蓄虚拟语气，相当于条件状语从句“If it hadn’t been your generous help”，表示与过去事实相反，此时句中的谓语动词应用should/could/would ＋have＋过去分词。据此可知A项当选。句意：假如当时没有您慷慨相助，我就不会度过那段艰难的时期。;3－2(2011·天津高考)I ________ sooner but I didn’t know that they were waiting for me. A．had come B．was coming C．would come D．would have come 解析：选 。考查虚拟语气。句意：我不知道他们一直在等我，要不然我肯定会迅速点儿。根据句意可知，这里是对过去的虚拟，故主句用“would have