虚 拟 语 气 虚拟语气是一种特殊的动词形式,表示所说的话不是一个事实,而只是一种假设,愿望,建议,怀疑,猜测或不大可能实现的空想。 I.虚拟语气用在条件状语从句中 虚拟语气用在条件状语从句中,通常从句由连词if 引导。 1. 与现在事实相反的虚拟条件句 构成 条件状语从句 主句 If +主语 +动词过去式 主语+ would, should, could, might+原形动词 (be的过去式用were) 例如: If I feared death, I wouldn’t be a communist. (刘胡兰)怕死就不做共产党员。 If there were no air, we couldn’t live. 如果没有空气,我们就不能生活。 Example: I would ask George to lend us the money if I ______ him. A. had known B. knew C. have known D. know I _____ it to him if I thought he would understand. A. shall explain B. will explain C. would explain D. explain 2. 与过去事实相反的虚拟条件句 构成 条件状语从句 主句 If + 主语 + 动词过去完成式 主语 + would, should, could, might + have + 过去分词 例如: If you had come a few minutes earlier, you would have met him. 如果你早来几分钟,你就会碰上他。 If there had been no air in the tube, the result of the experiment would have been more accurate. 如果试管中没有空气,实验结果就会更精确。 Example: If you hadn’t gone with Tom to the party last night, _______. A. you would meet John already B. you won’t have missed John C. you will have met John D. you would have met John 3. 与将来事实相反的虚拟条件句 构成 条件状语从句 主句 If + 主语+ should +原形动词 主语 + would, should, could, might 或were + 不定式 + 原形动词 例如: If he were to come tomorrow, things would be easier.假如他明天会来,事情就容易办了。 If the sand should be broken up, it would give out much energy. 如果沙子能被分解,它会释放出大量的能量。 注:在表示与将来事实相反的虚拟条件句中,从句中的should有时可以省略。如: If he make the design, he might do it in some other way. 要是他来搞这个设计,他可能用另外的方法设计。 [1] [2] 下一页 |