英语条件从句的几种特殊表达法
（宁县早胜中学 李俊义）
虚拟语气是高中英语教学中的一个重点，又是一个难点。在虚拟语气的句子中，条件从句的表示方法较多 ，通常用if来引导，如If Iwere you,I would study much harder，在有些情况下，条件从句也可用其他方法 来表示。下面谈几种条件从句的特殊表达法。
一、混合虚拟条件句
如果条件从句的动作和主句的动作不是同时发生，主句和从句的谓语动词的形式应分别根据各自所表示的 时间加以调整。这种句子叫做混合虚拟条件句。如：
If he had followed my advice,he would be quite all rightnow.（从句述说过去，主句述说现在）
If China had not been liberated,the working people wouldstill be leading a miserable life.（ 从句表示与过去的事实相反，主句说明与现在的事实相反）
二、省略if的倒装条件句
如果条件从句的谓语动词包含有were或助动词、情态动词had,should,could，有时可将连词if省去，而将 条件从句的主语置于were,had,should,could之后。这种用法主要用于书面语，如：
Were I(=If I were)in your place,I wouldn't give it up soearly.
Had I(=if I had)known,I might have joined you in thediscussion.
Should you(=If you should)be interested,I have a book onthe subject you might like.
三、省略主句，只保留if(only)的条件句
虚拟条件句中的表示结果的主句有时形式上可以省略，但意义仍然存在。这种句子只保留一个if(only)条 件从句，表达说话人的强烈愿望。如：If(only)she were my sister！她是我的妹妹就好了！
四、含蓄虚拟条件句
有时虚拟条件句不用条件从句，而是通过上下文或用介词短语等表示出来。这种句子叫做含蓄虚拟条件句 。下面列举几种。
1.在主语词组中表示含蓄条件
(1)主语是动词不定式短语，表示含蓄条件。
It would be good to leave the matter in his charge.如果把这件事让他负责就好了。
该句可改写成：It would be good if we could leave thematter in his charge.
(2)主语是动名词短语表示含蓄条件。
Doing the work in that way would have cost much more timeand money.如果用那种方法做这项工作就 会耗费更多的时间和金钱。
该句可改写为：If we had done the wo
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