考博英语语法：混合虚拟语气

考博英语语法：混合虚拟语气 $|@ (  
　　有时主句和从句的谓语动词指不同的时间，这时需要用混合虚拟语气。一般来说，在这种情况下，主从句谓语动词指代的时间不同，所以我们又可以错综时间条件句，在这种虚拟情况，动词形式应根据实际情况灵活使用，在做这些题目时候尤其要注意每道题目的提示语：时间状语。绝大多数情况下，从句或者主句都有相关的时间状语，这是我解题的关键。 , K~}\CR  
　　If you　that late movie last night, you wouldn’t be so sleepy. \| 8  
　　A. haven’t watched 8<QdMkI  
　　B. didn’t watch [_ EZh q  
　　C. hadn’t watched Fj2BnM3 #  
　　D. wouldn’t have watched　答案选C。 uxr #QA  
　　Many dead would now be alive if they have not attempted to return for something. o6.^*%kM'  
　　Had Paul received six more votes in the last election, he would be our chairman now. Po^?QVJ7  
　　混合虚拟语气还有一种情况就是事实和虚拟假设的混合句，这样的句子不仅仅是时间的不同，而重要是事实和假设的混合。 ?^al9D[:lz  
　　I would have gone to visit him in the hospital had it been at all possible, but I was fully occupied the whole of last week. ivJ@=pd)B  
　　该句前半部分是假设虚拟，而后半部分是事实的陈述。 gCB |DY  
　　Your math instructor would have been happy to give you a make-up examination had you gone and explained that your parents were ill at the time. t-tg-<  
　　该句前半句用的是假设虚拟，后半句主句也用的是假设虚拟(如果你去并且解释的话)，但是后半句的从句用的是事实语气，因为“父母病了”是客观事实，故不需要用虚拟形式had been。 ~:s>aQ`!