题目内容

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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