虚拟语气 (6)

虚拟语气- 在非真实条件句中的用法定义：用来表示说的话不是事实，或者是不可能发生的情况，而是一种愿望，建议，假设的语气叫虚拟语气。Fill in the blanks with proper verb forms. 1. He is not hungry.If he _ (be) hungry, he _ (eat) the cake. 2. I am very poor. If I _ (have) lots of money, I _ (fly) to Japan. 1. He wasnt there at that time. If he _ (be) there, it _ (happen). 2. What a pity I didnt take your advice. If I _ your advice, I _ (make) the mistake. 1. It is snowing heavily now. If it _ (be) sunny this afternoon, we _ (go) out for an outing.2. If we _ (plan) it properly, I think we _ finish the project in a week. 虚拟语气在在非真实条件句中的用法。（一）虚拟语气用于条件状语从句中时，主句和从句谓语动词的形式条件状语从句主句例示与过去事实相反had+过去分词should/would/could/might + have +过去分词If he had taken my advice, he would have succeeded in the competition.与现在事实相反一般过去时（be用were）would/should/could/might+动词原形1. If I were a boy, I would join the army. 2. If she had time, she should go with you.与将来事实相反一般过去时或should (were to)+动词原形would/should/could/might+动词原形If it were to rain tomorrow, the football match would be put off.附：条件句中虚拟语气的使用注意事项注意事项例示错综时间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, 动词的形式要根据它所表示的时间作相应调整。1. If they had worked hard, they would be very tired now. （从句说的是过去，主句指的是现在）2. If you had studied hard before, you would be a college student now, and you would graduate from a college in four years time.倒装在条件句中可省略if, 把were, had, should 提到句首，变为倒装句式。1. If I were at school again, I would study harder.were I at school again, I would study harder.2. If you had come earlier, you would catch the bus.Had you come earlier, you would catch the bus.3. If it should rain tomorrow, we would not go climbing.Should it rain tomorrow, we would not go climbing.注意：若省略的条件句中的谓语动词是否定形式时，不能用动词的缩略形式。可以说：Were it not for the expense, I would go abroad now. 但不能说：Werent it for the expense, I would go abroad now.含蓄条件句用介词短语代替条件状语从句。常用的介词有 with, without, but for。1. What would you do with a million dollars ?(= if you had a million dollars)2. We couldnt have finished the work ahead of time without your help. (= if we hadnt got you help)3. But for the rain (= If it hadnt been for the rain), we would have finished the work.通过其他手段来代替条件句1. I was ill that day. Otherwise, I would have taken part in the sports meeting. (副词)2. He telephoned to inform me of your birthday, or I would have known nothing about it. (连词) 3. A man who stopped drinking water would be dead in about seven days.(定语从句)4. I might have given you more help, but I was too busy.(连词)5. Everything taken into consideration, they would have raised their output quickly.(独立主格结构)Choose the best answer. 1. _, we would go with you. A. If it is Sunday today B. Is it Sunday today C. Were it Sunday today D. If it had been Sunday today 2. _ you _ more careful you wouldnt have make the silly mistake. _ A. Have been B. Are/ C. Were/ D. Hadbeen3.