题目内容
-I'm so sorry that you didn't win the skating marathon.
-How long _____ you ______?
-I skated for 5 hours.
- A.have, been skating
- B.were, skating
- C.have you skated
- D.did, skate
D
试题分析：句意：你没有赢得滑冰赛，我很难过。你已经滑了多久了？5小时。题中用了I skated for 5 hours表示动词的过去时表示动作在过去发生，所以问的时候也用一般过去时不用现在完成时，故选D
考点：时态
点评：动词的时态是学习英语过程中非常重要的知识。现在完成时表示动词在过去发生对现在造成的影响。现在完成时往往和already,yet,for+一段时间，since+点时间的时间状语连用。一般过去时只表动词在过去发生，一般现在时表示习惯性的动词或是客观真理、事实。
试题分析：句意：你没有赢得滑冰赛，我很难过。你已经滑了多久了？5小时。题中用了I skated for 5 hours表示动词的过去时表示动作在过去发生，所以问的时候也用一般过去时不用现在完成时，故选D
考点：时态
点评：动词的时态是学习英语过程中非常重要的知识。现在完成时表示动词在过去发生对现在造成的影响。现在完成时往往和already,yet,for+一段时间，since+点时间的时间状语连用。一般过去时只表动词在过去发生，一般现在时表示习惯性的动词或是客观真理、事实。
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