18．The old woman who ____ in the deserted house alone for ten years have been settled in a nursing home now．（　　）
A．livedB．have livedC．had livedD．has been living

分析 曾在那所廢棄的房子里住了十年的那對老夫妻現(xiàn)在已經(jīng)被安頓在養(yǎng)老院了．

解答 答案：A
根據(jù)句意可知，由于那對老夫妻現(xiàn)在已經(jīng)被安頓在養(yǎng)老院了，不在那所廢棄的房子里住了，因此"住在廢棄的房子里"是發(fā)生在過去的動作，句中的時間狀語now對應的是過去；故應使用一般過去時；B．現(xiàn)在完成時，表示發(fā)生在過去并持續(xù)到了現(xiàn)在的動作；C．過去完成時，表示發(fā)生在過去某時間之前的動作；D．現(xiàn)在完成進行時，表示從過去某時開始一直持續(xù)到現(xiàn)在的動作，并且還將持續(xù)下去；B．C．D都不符合句意；故選A

點評 本題考查了一般過去時的用法．在做類似的時態(tài)題，首先應根據(jù)句意提示或句中的時間狀語，正確判斷出動作發(fā)生的時間；其次應熟練掌握各時態(tài)所表達的意義用法及它們相互之間的用法區(qū)別．

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