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could have done 用法详解 | |||
作者:admin 文章来源:本站原创 点击数: 更新时间:2011-4-13 |
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7. 表示可能达到的极限:表示即使人们尽力而为去做某事,但还是未能做成,通常用于否定句。如: I couldn’t have won, so I didn’t go in for the race. 反正我也赢不了,所以我就没有参加赛跑。 I couldn’t have enjoyed myself more—it was a perfect day. 我玩得没法再痛快了——这一天简直痛快极了。 8. 表示惊讶:表示对所发生的情况感到惊奇,含有“竟然”的意味。如: It seems inconceivable that the accident could have happened so quickly. 这一事故发生得这么快,简直不可思议。 Well, I’m blowed! I should never have thought you could have done it. 真想不到! 我从未想到居然办得到。 9. 用于虚拟语气:在虚拟条件句中,当谈论过去的情况时,其句型通常是:主句用“could / would / should /might +have+过去分词”,从句用过去完成时。如: If he had known the facts, he could have told us what to do. 如果他了解事实,他是可能告诉我们怎样做的。 If anybody had asked me, I could have told them what happened. 如果有谁问过我,我可以告诉他们发生了什么情况。 10. 用于口语惯用表达:如用于I could have sworn…,表示“我可以发誓”“我千真万确”。如: I could have sworn I’d paid that bill. 我可以发誓我付过账。 I could have sworn I heard a knock at the door. 我千真万确听到了敲门声。 ◆摘自《中学英语高频词详解词典》◆ |
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