14．Mr．Mao，who ______ as a construction worker for over 8 years，is now a distinguished lawyer in this country．（　　）
A．has workedB．had worked
C．has been workingD．worked

分析 毛先生做為建筑工人工作了8年，現(xiàn)在是這個國家的一名杰出的律師．

解答 D 毛先生，曾經(jīng)作為一名建筑工人工作了8年，現(xiàn)在是這個國家著名的律師．根據(jù)一般過去時的定義在過去某個時間段內(nèi)一直持續(xù)做某事用一般過去時，for over 8 years是過去的八年這個時間段，所以答案選D． B選項是指"過去的過去"，不能選．

點評 高考題目對時態(tài)的考查是重點，謂語動詞要與時間狀語保持一致，時態(tài)與時間是密不可分的，各種時態(tài)卻要受到時間和語言環(huán)境的限制，根據(jù)題干提供的時間或者時間狀語體現(xiàn)的時間來判斷句子的時態(tài)是最直接的解題方法，扎實的語法功底加上準確的理解至關(guān)重要．

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