66问答网
所有问题
当前搜索:
might have done
have
/
has
been
done
的区别?
答:
1、一个是被动语态,一个不是。
Have
/
Has
been
done
是完成时态的被动语态 例如:the clothes
have
been washed already.衣服已经被洗了。2、Have/Has done单纯的完成时态 例如:I have washed the clothes already.我已经把衣服洗了。
求教几组词用法区别SHOULD
HAVE
DONE
COULD HAVE DONEWOULD HAVE DON...
答:
—What
has
happened to George?—I don't know.He
may
have
got lost.—乔治发生了什么事?——我不知道,他可能迷路了.六、 “
might
+have+
done
”表示对过去事情的推测,might与may意思相同,但可能性更小.多用于虚拟语气结构中.1.He might have given you more help,even though he was busy....
would be 和would
have
done
答:
1.与现在事实相反:if+主语+动词过去式(be的过去式为were),主句为主语+would/should/could/
might
+动词原形;2.与过去事实相反:if+主语+
had
+过去分词,主句为主语+would/should/could/might+
have
done
;3.与未来事实相反:if+主语+过去式 / if+主语+were to+动词原形 / if+主语+should+动词原形...
might
have
怎么用
答:
①表示对过去某事的推测,认为某一件事情在过去可能发生了.如果使用
might
,语气就比较婉转或更加不肯定,如:Mary might
have
learned some Chinese before.②可以表示过去本来可以做到而实际没有做到的事情,有“劝告”或“责备”的语气,如:You didn't do the work well that day.You might have
done
...
should
have
done
;must have done;need have done;could have done的...
答:
1.本应该做(却没做) 2.一定做了··· 3.本需要做 4.本能够做(却没做)
mustn't
have
done
和can't have done的区别最好有例子
答:
They
may
not
have
known it beforehand.You
might
have read about it in the papers.四、“need + have + 过去分词”表示过去做了不必做或不需要做的事情,或过去做某事纯属多余.如:Need they have
done
it last week?I needn't have bought so much wine—only five people came.五、“...
might
not
have
done
的用法
答:
情态动词用法,后面加
have
done
表示过去可能没有做过某事,如 He
might
not have gone to Beijing lsst year.他可能去年没去北京
mustn't
have
done
和can't have done的区别最好有例子
答:
They
may
not
have
known it beforehand.You
might
have read about it in the papers.四、“need + have + 过去分词”表示过去做了不必做或不需要做的事情,或过去做某事纯属多余.如:Need they have
done
it last week?I needn't have bought so much wine—only five people came.五、“...
情态动词+
have
done
是虚拟语气吗?
答:
这个不一定是的。它可以有两种情况的。情态动词+
have
done
:第一,表推测;第二,表虚拟。1.edn't /shouldn't +have done 表对过去的推测,译为“本不需要、本不应该做...”2.can't have done 表对现在的推测。译为“不可能...”3.mustn't have done 表对过去的推测。译为“一定不会.....
could
have
/
might
have /must have/should have都有什么区别
答:
3
may
(
might
)
have
done
表示对已经发 生的事情的不太肯定的推测,意为“可能已经,或许已经”。例如: If we
had
taken the other road , we might have arrived earlier.4needn”t have...
首页
<上一页
5
6
7
8
10
11
12
9
13
14
下一页
尾页
其他人还搜