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WoulD hAvE DonE用法

wouldn't have done 表示不会做某事,但是实际上做了。文章中的意思是本来不会降低美国的油气价格。 would have done 是一个固定虚拟语气的用法。 表示对过去事情的假设,意为“本来想做、要做但没做”,使用时大多会给出导致没做成或会这样做的条...

wouldn't have done 表示不会做某事,但是实际上做了。文章中的意思是本来不会降低美国的油气价格。 would have done 是一个固定虚拟语气的用法。 表示对过去事情的假设,意为“本来想做、要做但没做”,使用时大多会给出导致没做成或会这样做的条...

1.这种虚拟语气的句子按道理是应该配套用的:主句had done +从句would have done。但是有些情况下可以用混合型,也就是不完全配套。本句中答案用would have a chance to survive是表示与现在事实相反,也就是说 那他“现在”还可能活着。想一想如...

would/should + have + 过去分词 这是虚拟语气的一种用法。 would have done :表示对过去事情的假设,意思是“本来会做”。 比如: I would have told you all about the boy's story, but you didn't ask me. 我本来会告诉你这个小男孩的故事,...

根据词语表面意思理解 could来自于can表示能够 could have done 就是说“本能够做到什么”(隐含当时没能达到这个能力) would来自于will表示推测 would have done 是说“本将会怎么做”(隐含当时没有这个意愿) 前者侧重说能力,后者侧重说意愿。 ...

should have done表示,本应做某事却没有做。

would/should + have + 过去分词 这是虚拟语气的一种用法。 would have done :表示对过去事情的假设,意思是“本来会做”。 比如: I would have told you all about the boy's story, but you didn't ask me. 我本来会告诉你这个小男孩的故事,...

would have done 在语法时态上称作“过去将来完成时。” 语法教科书上对这个时态的解释是“表示从过去观点看将来某时某动作已完成”,并注明“这个时态用得相对比较少。”例句: I thought Sophia would have told you something. 我想索菲娅会已告诉...

would have done 表示主句对于过去的虚拟,不是真实发生的。would加动词原形是真实发生的

would have done和 should have done的区别是 would have done :表示对过去事情的假设,意思是“本来会做”。 should have done:表示对过去事情的假设,意思是“本来应该做”。 例句辨析: would have done 1、I would have done it, but I had no...

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