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1、 虚拟语气用来表示说话人的主观愿望或假想，所说的是一个条件，不一定是事实，或与事实相反。虚拟语气通过谓语谓语动词的特殊形式动词的特殊形式来表示。表示与现在事实相反的情况表示与现在事实相反的情况（条件）从句谓语动词形式 主句谓语动词形式 谓语动词用一般过去式谓语动词用一般过去式（bebe用用werewere）should/would/could/might+动词原形（过去将来时）eg.If I were you,I would take an umbrella.如果我是你，我会带把伞。If I knew his telephone number,I would tell you.如果我知道他的电
2、话号码，我就会告诉你。If there were no air or water,there would be no living things on the earth.如果没有水和空气，地球上就不会有生物。表示与过去事实相反的情况表示与过去事实相反的情况从句谓语动词形式 主句谓语动词形式 had+had+过去分词过去分词（过去完成时）should/would/could/might+have+过去分词过去分词（过去将来完成时）eg.If he had taken my advice,he would not have made such a mistake.如果他听我的劝告的话，就不会犯这
3、样的错误了。表示对将来情况的主观推测（可能相反或可能表示对将来情况的主观推测（可能相反或可能性很小）性很小）从句谓语动词形式 主句谓语动词形式 If+主语主语+should+动词动词 were to do should/would/could/might+动词原形动词原形 例子：.If he would come here tomorrow,I should/would talk to him.如果他明天来这，我就跟他谈谈。If she were to be here next Monday,I would tell her about the matter.如果她下周一来这，我就会告诉她这件事。、虚拟语气用在wish 后的宾语从句a、表示与现在事实相反的愿望，谓语动词用过去式 I wish I had your brains.我希望我有你那样的头脑。b、表示过去事实相反的愿望，谓语动词：had+过去分词I wish I had known the truth of the matter.我希望我原来知道这件事的真相。c、表示将来难以实现的愿望，谓语动词 should/would+动词原形动词原形I wish I should have a chance again.我希望我还能有一次这样的机会。
学位英语课件-虚拟语气
