But for the fact that China _ also affected by the global economic crisis,we _fewer unemployed worke

题目

But for the fact that China _ also affected by the global economic crisis,we _fewer unemployed worker now
A.is,would have B.was,would have down
为什么选A呢?请详细分析下,我知道前面中国被经济危机影响是事实,用was是发生在过去不行吗?we _fewer unemployed worker now不是虚拟would have down
would have down

答案

这里考查的是一个含蓄虚拟条件句,其条件隐含在But for短语里面,而该短语里that后是一个同位语从句,指的现在的情况,因此用一般现在时；而后面部分是主句,表示与现在的情况相反,因此用虚拟语气（would / should / could / might + 动词原形）.
题意：要不是中国也受全球经济危机的影响,我们现在失业(未就业）的工人就会更少了.