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1、常见的虚拟语气句型一、 虚拟语气用于非真实条件句中1与现在事实相反的虚拟语气形式If主语动词的过去式（be要用were）, 主句主语would（或should, could, might）动词原形。2 与过去事实相反的虚拟语气形式If主语had过去分词, 主句主语would（或should, could, might）have过去分词。3与将来事实相反的虚拟语气形式If主语动词的过去式（或were to 动词原形, 或should 动词原形）, 主句主语would（或should, could, might）动词原形。二、 虚拟语气的其它句型1虚拟语气用在动词wish带的宾语从句中, 宾语从句
2、的谓语动词形式为:谓语动词用过去式（be用were）表示现在的情况。例如: I wish I didnt have a cold. 但愿我没有感冒。谓语动词用过去完成式表示过去的情况。例如: I wish I had seen you yesterday.谓语动词用would（或could, might）动词原形表示将来的情况。例如: I wish you could come tomorrow. 但愿你明天会来。注: as if（as though）引导的从句和if only后面所跟的句子也要用虚拟语气, 其形式和动词 wish所带的宾语从句的形式相同。例如: When a pencil i
3、s partly in a glass of water, it looks as if it were broken. If only I had followed his advice. 若是我听了他的劝告就好了。2用介词短语（without., but for. ）、副词（otherwise）表示某种假设的情况, 相当于if引导的虚拟条件句。例如: Without electricity human life would be quite different today. 3虚拟语气用在It be important（necessary, strange, natural）that cl
4、ause句型中, that clause的谓语动词应为“（should ）动词原形”。例如: It is necessary that he be sent to the hospital at once. 4虚拟语气用在It be time that clause句型中, that clause的谓语动词应为“动词的过去式（be用were）或should 动词原形”。例如: It is time that he went（should go）to bed. 他睡觉的时间到了。5. 虚拟语气用在order, ask, suggest（建议）, demand, request, insist（坚
5、持要）等动词后面的宾语从句中, 宾语从句的谓语动词应为“（should ）动词原形”。例如: He suggested that she start/ should start at once.6. 虚拟语气用在advice, idea, order, plan, suggestion, demand, proposal等名词后面的表语从句或同位语从句中, 从句的谓语动词应为“（should ）动词原形”。例如: My suggestion is that you should hold the meeting next Sunday. The teacher gave orders that
6、 the work be finished / should be finished before 4 oclock.7. 虚拟语气用在It be suggested（ordered, demanded, requested. ）that clause句型中, that clause的谓语动词应为“（should ）动词原形”。例如: It is suggested that we（should）start the work at once. 有人建议我们立即开始工作。8. 虚拟语气用在would rather后面的从句中。用过去式（be用were）表示现在或将来的情况; 用过去完成式表示过去的情况。例如: I would rather you went next Sunday. 我愿你下星期天去。I would rather you hadnt done that. 我真希望你没做那件事。