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關閉窗口 7. Excuse me, Marcia, a reporter from Vanity Fair ______ all day. Could you speak to her now?
A. phones B. has phoned C. has been phoning D. phoned
分析：C。根據句中的時間狀語all day和謂語動詞phone的特點（為非延續性動詞）可知，句子應用進行時態（表示動作不斷重復），而選項中只有C為現在完成進行時。句意為：瑪西婭，打攪你一下，有名來自《名利場》的記者一整天都在打電話來，你現在能和他說說嗎？又如：She is very tired. She’s been typing letters all day. 她很累了。她整天都在打信件。
8. Over the past decades, sea ice ______ in the
A. had decreased B. decreased C. has been decreasing D. is decreasing
分析：C。介詞短語“over the past [last]+時間段”的意思是“在過去的……時間中”，它指的是從過去某時持續到現在的一段時間，所以通常與現在完成時或現在完成進行時連用，故答案選C。句意為：過去幾十年來，由于全球變暖，北極的海冰正慢慢消融。又如：Technology in this field has matured considerably over the last decade. 這一領域的技術經過過去10年的發展已經相當完善。
9. —Why, Jack, you look so tired!
—Well, I ______ the house and I must finish the work tomorrow.
A. was painting B. will be painting C. have painted D. have been painting
分析：D。現在完成進行時表示從過去一直持續到現在的動作。在此題中，由于“一直在刷油漆”，所以才導致“看上去非常疲憊”，故選D最符合句意。
10. Mother wanted to be a good provider, a role she ______ since her marriage to Father.
A. shoulders B. shouldered C. is shouldering D. has been shouldering
分析：D。根據空格后的since可知，此處談論的是從過去一直持續到現在的情況，故用現在完成進行時最合適。
11. Joseph ______ to evening classes since last month, but he still can’t say “What’s your name?” in Russian.
A. has been going B. went C. goes D. has gone
分析：A。根據句中的since可知，空格處應填完成時態，故可排除B和C；根據句意，空格處填現在完成進行時比填現在完成時更合適，因為它更強調“一直在做某事”。又如：He has been working since noon. 他從中午就開始工作了。He was taken ill and no wonder, considering he has been overworking for years. 他生病了，也難怪，多少年他一直過度辛勞。
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