Unit 1 Art Section Ⅲ Grammar——虚拟语气(Ⅰ)虚拟语气在条件句中的运用1．非真实条件句中虚拟语气的基本形式(1)与现在事实相反条 件 从 句 用 过 去 时 (be 动 词 的 过 去 式 一 律 用 were) ， 主 句 用 “ would (should/might/could)＋动词原形”。如：If I were you, I would accept the invitation to the party.如果我是你的话，我将接受去聚会的邀请。(2)与将来事实相反条件从句用过去时或者“were to＋动词原形”或者“should＋动词原形”，主句用“would (should/might/could)＋动词原形”。如：If it were Saturday tomorrow, we wouldn't have an exam.如果明天是周六的话，我们就不考试了。2．非真实条件句的特殊形式(1)虚拟条件句中的省略与倒装如果 if 虚拟条件句中有 were, had 或者 should 等词时，可以省略 if，把这些词放在主语前，形成倒装句。如：If I should meet her (Should I meet her), I would tell her.如果我遇见她的话，我就告诉她。(2)错综时间条件句有时在非真实条件句中，主句谓语动词所表示的动作和条件从句中谓语动词所表示的动作并不同时发生，这时主句和从句的谓语动词要根据各自所指的不同时间选用适当的虚拟语气形式。如：Had I taken my umbrella with me when I came out this morning, I should not be wet now.如果我今天早上出来的时候带着伞的话，现在就不会淋湿了。(从句说的是过去的事情，而主句说的是现在的事情)(3)含蓄虚拟条件句有时一个假设的情况并不用条件从句表示，而用其他方式来表示，这样的句子叫含蓄虚拟条件句。主要有以下几种情况：① 用 with, without, but for 等介词(短语)来替代条件从句，它们都可以转换成由 if引导的虚拟条件句。如：We might have died without your help. ＝ We might have died if you hadn't helped us.如果(那时)没有你们的帮助，我们可能已经死了。②用or, otherwise, but that, suppose/supposing (that), provided/providing(that)等引导的虚拟语气。如：You didn't come yesterday, or you would have seen him.你昨天没有来，否则的话，你就已经看到他了。③ 通过上下文来表示虚拟，在这种情况下，需要加以分析。如：I would have given you more money, but I was so poor then.我(那时如果有钱...
