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重点句型
13. Frederick
William Ⅰ, the King of Prussia, could never have
imagined that his greatest gift to the Russian people would have such an amazing
history.
普鲁士国王威廉一世绝不可能想到他送给俄罗斯人民的厚礼会有这样一段令人惊讶的历史。
“couldn’t have
done”意为“不可能做了某事”，表示对过去已发生的事情的比较有把握的否定猜测。
could/can have
done结构的用法：
①用于疑问句中，表示一种猜测，意为“可能做过……吗？”
②用于肯定句中，表示与过去事实相反的假设，意为“本来能够去做却没有做”。
Page No.184
Mr Smith can’t
have gone to Beijing, for I saw him just now.
史密斯先生不可能去北京了，我刚才还见过他。
There is no light
in the room, can they have gone out?
屋里没亮灯，他们有可能出去了吗？
—I stayed at a hotel while in New York.
在纽约时我住在一家旅馆里。
—Oh, did you? You could have stayed with
Babara.
是吗？你本来能够和巴巴拉住在一起的。
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