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4.The hostess of the party,who__________ as a doctor for five years,is president of a famous private school.(  )
A.workedB.has workedC.worksD.had worked

分析 今天聚会的女主人曾经当过五年医生,现在是一所很出名的私立学校的校长.

解答 答案:A
该题考查一般过去时的运用,根据句意可知,女主人现在的职业是一所私立学校的校长,那么as a doctor for five years"当过五年医生"则为女主人以前的经历,为发生在过去的事情,所以应用一般过去时,该题最大干扰项为B选项现在完成时,但是现在完成时表示动作发生在过去对现在造成一定影响(题中未提及)或动作发生在过去且还有可能延续下去(当医生的经历已结束),两项均不符合,所以不能用现在完成时,故选A.

点评 考查时态时,要注意句中表示时间的成分对时态的提示,如果没有明确的时间提示,则可以通过句中逻辑关系来确定时态.

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