Question

_________ the car after drinking alcohol, there wouldn’t have been the accident

1. A.
   Had he not driven
2. B.
   Hadn’t he driven
3. C.
   If he didn’t drive
4. D.
   If he doesn’t

Answer 1

A
试题分析：考查if条件句的省略倒装：句意：如果他没有酒后驾驶，就不会出事了。因为是和过去相反的虚拟条件句，用if he had not driven…，当虚拟条件句的谓语部分含有were, should, had时，我们可以将连词if省略掉，而将were, should, had置于句首。这里的Had he not driven ="if" he had not driven…，是和过去相反的虚拟语气条件句，选A。
考点：考查虚拟语气的省略倒装
点评：当虚拟条件句的谓语部分含有were, should, had时，我们可以将连词if省略掉，而将were, should, had置于句首。注意：对于条件从句含有should而主句使用陈述语气或祈使语气的句子也可以采用以上方法进行省略和倒装。如果条件从句为否定式，注意要将not置于主语之后，而不置于主语之前。