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had done would have done
would
have
done
用法
答:
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件。英汉例句1:If I
had
a chance,I would have ...
have
done
与
had
done的区别是什么?
答:
have
done
是现在完成时态(过去发生的动作对现在造成的影响);
had
done是过去完成时态(过去发生的动作对过去造成的影响)。例句:She
has
been sweeping the street all day. She is too tired.她一整天都在扫大街,她太累了。
would
have
done
的意思是什么?
答:
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你一些情况。He knew by the time he arrived she ...
请问这道题要怎么理解 选
would
have
done
而不是
had
been done
答:
这是个与现在事实不相符的虚拟语气的句子,也是虚拟语气中的含蓄条件句。这个句子相当于:If we hadn't missed the first train to London,we
would
have
visited many museums the day before yesterday.其基本句型是:If sb
had
done
…,sb would have done…主句中必须有would,should,could或might等...
这里的
would
have
done
怎么理解?
答:
这个句子是虚拟语气,主句的动作与过去事实不符,就用
would
have
done
.这个句子表示他原来没有做完,现在快完成了。
if i
had
done
与if i
would
have
done的区别好像两者都是对过去的虚拟...
答:
if i
had
done
是说 假设这个事情 我确实做了 if i
would
have
done 是说 假设这个事情在以前会发生,其实根本不可能发生, 这个用的少 举个 if i would have had time, i would have been with u ,假设有时间,但是我根本不会有 这个和 if i had had time 的区别是 had had 就是假设...
have
done
和
had
done有何区别?
答:
1、
have
+ 过去分词 是现在玩成时态, 表示过去发生的动作对现在造成的结果或影响,或者表示动作从过去开始发生一直持续到现在 。2、
had
+过去分词 是过去完成时 ,表示针对过去的某个时间来说 已经发生的动作或状态, 表示过去的过去。3、这个没有have
done
的使用频率高,它主要是要表达过去的过去意思...
“
have
done
” 和“
had
done” 的用法有哪些?
答:
have
done
是从过去发生,截止到现在,比如i have done my homework,我已经写完作业了 ,表示我现在不用写作业了 而
had
done 是过去的过去发生,截止到过去,比如i had done my homework yesterday 我昨天就完成作业了 这句和 i did my homework yesterday 不一样,前者能表示已完成而后者,只...
虚拟语气主句用
havedone
从句为什么不用
haddone
答:
因为这个 if i
had
done
和 if did 在现代英语中,这是一样的,尤其是英语母语的人,经常这样说。 你说 if had done 的话 是表示真实情况 以前你一直在帮我 ,我在以前就考过了。你说 if did 的含义是 以前你一直在帮我,一直到现在还是在帮我的状态,我以前考试就过了。
请解决一下英语语法问题
答:
一、概念 [Subjunctive Mood]中文译作"虚拟语气"。它是一种动词形式,表示说话人的某种假设、愿望、怀疑、猜测、建议等含义。二、语法结构 1.if结构(非真实条件句——表示的是假设的或实际可能性不大的情况)与..事实相反 If从句 主句 过去
Had
done
Would
*
have
done 现在 Were/did Would* do ...
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