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选修6《Grammar》PPT课件优质课下载
虚拟语气
Part 1
Answers
1.1 1 knew 2 were
1.2 1 had gotten 2 had taken
1.3 1 should come/ came /were to come
2.1 1 had 2 had known 3 should/would come
3 If we hadn't got your help /if it had not been for
4 1 Were 2 Should 3 Had
if虚拟条件句
主句
与现在事实相反的假设
与过去事实相反的假设
与将来事实相反的假设
1、If+主语+动词过去式
2、If+主语+were to+ 动词原形
3、If+主语+should +动词原形
If+主语+ 动词的过去式
（be动词一般用were)
主语+would ( should / might / could )＋动词原形
即：If+一般过去时态
（be动词一般用were)
If+主语+had +动词的过去分词
即：If+过去完成时态
主语 + would ( should / might / could )＋have done