Simonisveryregretful.Ifhehadbeenmorecareful,he_____suchabigmistake.A

Simon is very regretful. If he had been more careful, he _____ such a big mistake.A.hasn’t madeB.hadn’t madeC.won’t have madeD.wouldn’t have made

D解析试题分析：句意:西蒙是很后悔的，如果他再仔细点，他就不会犯这么大的一个错误。这里是虚拟语气，根据had been可以看出是对过去的虚拟，故主句用would have done的形式，根据句意故选D。考点：考查虚拟语气的用法。点评：本题难度适中。虚拟语气是近几年高考的热点，虚拟语气的情况复杂，形式多样，需要考生牢记它们的不同的用法，再根据不同的语境分析句子应该用哪种情况的虚拟。这里是从句和主句都是对过去的虚拟。即学即练：Tell John not to leave the house unless he _____that the lights ______ .A. will make sure, turn off B. makes sure; are turned off C. will make sure; will turn off D. makes sure; will be turned off解析：B。第一空在条件状语从句中用一般现在时代替一般将来时；第二空所有的灯被关掉。

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