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译林2003课标版《Grammar and usage(2)： Unreal conditions》精品PPT课件优质课下载
主句的谓语形式
现在情况
过去完成式
(had +done)
将来情况
would / could / might / should + do
过去式
(be常用 were)
would / could / might / should +
动词原形(do)
过去情况
would/ could / might /should + have done
①过去式
②should + do
③were to do
1. 【2014年北京卷】 We________ back in the hotel now if you
did not lose the map.
A.are
B.were
C.will be
D.would be
倒装虚拟
二、当虚拟条件句的谓语动词含有were, should, had时，if可省略，而将were, should, had等词置于句首。如：
If he should agree to go there, we
would send him there.