1、答案时间If条件句谓语动词形式主句谓语动词形式现在过去式/be(were)would/shoulddo过去had doneWould/shouldhave done将来过去式/should do/were to doWould/should do省略if把had、were、should等提到句首，用倒装语序一、 复习：BBAAB二、 自主学习：If 从句与过去事实相反，故用had done, 主句与现在事实相反，故用would be.AB三、 虚拟语气的其他用法：在宾语从句中的应用。表示命令、建议、要求等的动词+宾语从句，从句用虚拟语气。should + do 的形式。常见的词：suggest
2、，advise，recommend，propose；order，command；require，request，demand；insist。are wereACBCI demanded he (should ) answer me immediately.在主语从句在的应用。1. It is necessary(important, natural, strange, etc.) + that 句。2. It was a pity (a shame, no wonder, etc.)that +that 句。3. It will be desired(suggested, decided, o
3、rdered, requested, proposed, etc.) that +句。用should+doBCB在表语从句，同位语从句中的应用。表示建议、要求和命令对应的名词后面跟表语从句或同位语从句时，从句通常用虚拟语气should+ do。DBAMy suggestion is that you should practice speaking English as often as possible.在状语从句中的应用。Even if/even though, as if/as though 引导状语从句时，如表示与事实相反时用虚拟语气。She talked about the film
4、 as if she had seen it before.ACCMr Green spoke slowly so that/in order that he could make himself heard clearly by his students.四、 虚拟语气的几个句式：Wish句式：Wish that +句子。“但愿就好了。与现在事实相反，谓语动词用过去式、bewere; 与过去事实相反，用had done; 与将来事实相反，用would + do.CBIf only /only if 句式：If only 通常要用虚拟语气。而only if “只有才，放在句首，用局部倒装。DIts (high ) time that, would rather that句式：Its time that, 通常用过去式、bewere,或用should +do。Would rather that与现在事实相反，谓语动词用过去式,be(were)；与过去事实相反，用had done; 与将来事实相反，用过去式。DABC含蓄句式：But for/otherwise/or/without等引导短语相当于if 引导的条件状语从句，句子使用相应的动词形式。ADB
