早教吧作业答案频道 -->英语-->
-How long did you skate?-I skated for two hours.第一句中”did”” skate”能换成”have””been skating”?为什么?
题目详情
-How long did you skate?-I skated for two hours.
第一句中”did”” skate”能换成”have””been skating”?
为什么?
第一句中”did”” skate”能换成”have””been skating”?
为什么?
▼优质解答
答案和解析
你滑冰了多久?我滑了两个小时了.
不能换成现在完成时.因为“滑冰”这个动作中间没有间断而是一直连续的（for two hours表明一直在滑）,所以不能用现在完成时来提问,只能用过去式提问；除非是滑完了已经停止一段时间了才能用现在完成时提问.
不能换成现在完成时.因为“滑冰”这个动作中间没有间断而是一直连续的（for two hours表明一直在滑）,所以不能用现在完成时来提问,只能用过去式提问；除非是滑完了已经停止一段时间了才能用现在完成时提问.
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