虚拟语气（一）1.四种语气 ：___________ Our school is very beautiful.___________ Have you ever been to Japan?___________ Hurry up!___________ If I were you, I would refuse him.虚拟语气在条件句中应用比较多。2.条件句 可分为两类，一类为真实条件句. If we leave now, we can still catch the train.3.一类为非真实条件句。非真实条件句表示的是假设的或实际可能性不大的情况，故采用虚拟语气。If you _____________________(arrive) a little earlier, you ______________________(see) her. 4. 非真实条件句 1）虚拟语气可以表示过去，现在和将来的情况，时态的基本特点是时态往后推移。a. 与现在事实相反的假设条件从句主句一 般 过 去 时 （ be 用 ________________）__________________________________________等 +动词原形例如：If they were here, they would help you. 如果他们在这儿，会帮助你的。含义：They are not here, they can’t help you.b. 与过去事实相反的假设条件从句主句过去完成时____________________________________________等+ have+ done 例如：If he had come yesterday, I should / would have told him about it.如果他昨天来的话，我会把这件事告诉他的。含义：He did not come yesterday, so I did not tell him about it. If we had found him earlier, we might have saved his life.c. 表示对将来不大可能发生的事情的假想条件从句主句一般过去时_________________________________________等 + 动词原形were+ 不定式should+ 动词原形 例如： 如果我来做这工作，我会是另一种做法。If I were to do the job, I would do it in a different way.含义：I am not likely to do the job, so the job will be done in the usual way.5. 混合条件句 有时，主句与从句的动作发生在不同的时间，主句从句谓语动词的虚拟语气形式因时间不同而不同，这种条件句叫做混合条件句。例如： If you had asked him yesterday, you would know what to do now. 如果你昨天问过他，今天就知道做什么了。 （从句与过去事实相反，主句与现在事实相反。） If it _________________(rain) last night（过去）, it ______________(be) ...
