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1、虚拟语气定义虚 拟 语 气（the Subjunctive Mood）表 示 说 话 人 的 一 种 愿 望、建 议、命 令、要 求，有 时 是 一 种 非 真 实 的 假 设、料 想，或 是 不可能实现的、与事实相反的愿望。陈 述 语 气（the Indicative Mood）用 来 陈 述 一 个 事 实，或 提 出一个想法，有肯定、否定、疑问和感叹等形式。考点1.条件句中的虚拟语气的用法/倒装；2.名词性从句中虚拟语气的用法；3.几种特殊结构中虚拟语气的用法；4.虚拟语气与陈述语气的判定。主要形式(1)与现在事实相反的非真实条件句，谓语动词形式如下：从句：过去时 主句：would/sh
2、ould/could/might+动词原形 If I were you,I would ask our teacher for advice.如 果 我 是 你的话，我就去请教老师了。(2)与过去事实相反的非真实条件句，谓语动词形式如下：从 句：过 去 完 成 时 主 句：would/should/could/might have+过去分词If I hadnt taken the wrong bus,I wouldnt have missed the contest.如果我没有乘错车，我就不会不参加竞赛了。(3)与将来事实相反的非真实条件句，谓语动词形式如下：从句：过去时/should+动词原
3、形/were to+动词原形主句：would/should/could/might+动词原形If I had enough money next month,I would buy a copy of“The Advanced Learners Dictionary of Current English”.如 果 我下个月有足够的钱，我就会买一本现代高级英语学习词典。if 引导的虚拟条件句区别:If it rains tomorrow,the crops will be saved.陈述语气If it rained tomorrow,the crops would be saved.虚拟语气与
4、现在事实相反的虚拟条件句If+主+did(were),主+would/should/could/might+动词原形1.如果我是你，我会再试一次。If I were you,I would try it again.2.如果我有一百万美元，我会买下这架飞机。If I had one million dollars,I would buy the plane.与过去事实相反的虚拟条件句If+主+had done sth.,主+would/should/could/might+动词完成式（have done）1.如果他努力学习的话，他就会通过这次考试了。If he had worked hard,
5、he would have passed the examination.2.要是当时我和她结了婚的话，那我是很不幸的。If I had married her then,I would have been unhappy.与将来事实相反的虚拟条件句(通常有时间状语)If+主+did(were to/should do),主+would/should/could/might+动词原形1.如果他明天来的话,我会告诉他这件事。If he came here tomorrow,I would tell him about it.2.如果他明天来的话,我会告诉他。If he were to come
6、here tomorrow,I would tell him.条件状语的倒装：如果条件状语中有were,had,should 时,可以倒装成：Were/Should/Had+主+其他If I were you,I would try it again.Were I you,I would try it again.If he had been there yesterday,he would have seen the film.Had he been there yesterday,he would have seen the film.If it should snow tomorrow,
7、we wouldnt go out.Should it snow tomorrow,we wouldnt go out.wish引导的虚拟句wish+thatHow I wishIf onlydid/were 现在had done 过去would/might/could do 将来(1)我要是记得地址就好了。（真可惜我忘了）I wish I remembered the address.(2)要是他没有离开这里就好了。（他已离开）How I wish he had not left.(3)要是明天下雨就好了。（说话人已预料到明天不会下雨）I wish it would rain tomorrow.If only 要是就好了=I wish（1）If only I knew his name now!（2）If only we had followed your advice last time!（3）If only I could see him again next year!（4）要是我们的父母能和我们住在一起就好了。If only our parents could live with us!（5）要是我没错过火车就好了.If only I hadnt missed the train!as if/though