must have done什么意思 must have done是什么意思

must have done\u4ec0\u4e48\u610f\u601d

\u60c5\u6001\u52a8\u8bcd+\u52a8\u8bcd\u5b8c\u6210\u65f6,\u5373\u60c5\u6001\u52a8\u8bcd+have+done.\u8868\u793a\u5bf9\u8fc7\u53bb\u7684\u884c\u4e3a\u6216\u52a8\u4f5c\u8fdb\u884c\u63a8\u6d4b,\u8bc4\u8bba\u6216\u8005\u5224\u65ad.
1.must have done.
\u8868\u793a\u5bf9\u8fc7\u53bb\u67d0\u4e8b\u7684\u80af\u5b9a\u731c\u6d4b\uff0c\u5176\u5426\u5b9a\u6216\u7591\u95ee\u5f62\u5f0f\u90fd\u7528can/could\u6765\u8868\u793a\u3002
\u4f8b\u5982\uff1asince the road is wet,it must have rained last night.
2\uff1b\u5f53\u7136\u5bf9\u73b0\u5728\u53d1\u751f\u6216\u8005\u5c06\u6765\u53d1\u751f\u7684\u4e8b\u60c5\uff0c\u8981\u7528must do\u8868\u793a\u731c\u6d4b\uff0c\u5426\u5b9a\u4e3acan\u2019t do
he must understand that we mean business.
you must be hungry after a long walk.

\u53cd\u610f\u7591\u95ee\u53e5\u4e2d\u542b\u6709Must\u7684\u60c5\u51b5\u4e3b\u8981\u6709\u4ee5\u4e0b\u51e0\u79cd\uff1a
1\uff09\u4f5c\u4e3a\u60c5\u6001\u52a8\u8bcd\u8868\u201c\u5fc5\u987b\u201d\uff0c\u8fd9\u65f6\u53cd\u610f\u7591\u95ee\u53e5\u76f4\u63a5\u7528mustn'/needn't
2)\u5f53must\u8868\u793a\u63a8\u6d4b\u65f6\u53c8\u5206\u4ee5\u4e0b\u51e0\u79cd\u60c5\u51b5\uff1a
a\uff1a\u5bf9\u73b0\u5728\u4e8b\u5b9e\u7684\u63a8\u6d4b\uff0c\u53cd\u610f\u7591\u95ee\u53e5\u4e0emust\u540e\u9762\u7684\u52a8\u8bcd\u547c\u5e94\uff0c\u5982:
You must be joking,aren't you ?
b:\u5bf9\u8fc7\u53bb\u4e8b\u5b9e\u7684\u63a8\u6d4b\uff0c\u8868\u793a\u52a8\u4f5c\u7684\u65f6\u5019\u7528did \u5f53\u52a9\u52a8\u8bcd\uff0c\u8868\u793a\u72b6\u6001\u65f6\u7528was\uff0c\u5982\uff1a
Mr Green must have been punished for his being rude at the meeting\uff0cdidn\u2018t he ?(\u683c\u6797\u5148\u751f\u4e00\u5b9a\u56e0\u4e3a\u6628\u5929\u5728\u4f1a\u4e0a\u9c81\u83bd\u7684\u884c\u4e3a\u88ab\u5904\u7f5a\u4e86\uff0c\u662f\u5417\uff1f\uff09 \u88ab\u5904\u7f5a\u8868\u793a\u4e00\u4e2a\u52a8\u4f5c
She must have been a policeman ,wasn't she ?\uff08\u5979\u8fc7\u53bb\u4e00\u5b9a\u662f\u4e2a\u8b66\u5bdf\uff0c\u662f\u5417\uff1f\uff09 \u662f\u8b66\u5bdf\u8868\u793a\u4e00\u79cd\u72b6\u6001

\u5bf9\u73b0\u5728\u60c5\u51b5\u7684\u63a8\u6d4b\uff0c\u95ee\u53e5\u90e8\u5206\u7528\u4e3b\u52a8\u8bcd\uff08do,be)\u4e00\u822c\u73b0\u5728\u65f6\u7684\u9002\u5f53\u5f62\u5f0f\u3002\u82e5\u662f\u73b0\u5728\u8fdb\u884c\u65f6\uff0c\u95ee\u53e5\u90e8\u5206\u7528\u73b0\u5728\u8fdb\u884c\u65f6\u7684\u9002\u5f53\u5f62\u5f0f\u8868\u793a\u3002\u82e5\u662fthere be\u7ed3\u6784\uff0c\u95ee\u53e5\u7528isn't/aren't there\u3002\u5982\uff1a
1)He must be there,isn't he?
2)He must have a big family,doesn't he?
3)He must be waiting outside,isn't he?
4)There must be some students in the room,aren't there?

\u5bf9\u5df2\u53d1\u751f\u7684\u8fc7\u53bb\u60c5\u51b5\u7684\u63a8\u6d4b\uff0c\u82e5\u9648\u8ff0\u53e5\u8c13\u8bed\u90e8\u5206\u6709\u201cmust have done\u201d\uff0c\u800c\u4e14\u6709\u8868\u793a\u8fc7\u53bb\u7684\u65f6\u95f4\u72b6\u8bed\uff0c\u95ee\u53e5\u90e8\u5206\u7528didn't\uff1b\u82e5\u6ca1\u6709\u8868\u793a\u8fc7\u53bb\u7684\u65f6\u95f4\u72b6\u8bed\uff0c\u95ee\u53e5\u90e8\u5206\u7528haven't\u6216hasn't\u3002\u5982\uff1a
1)They must have gone there last night,didn't they?
2)They must have arrived by now,haven't they?\uff08\u6839\u636eby now\u6765\u5224\u65ad\uff09
3)They must have been to the Great Wall,haven't they?

\u82e5\u662f\u88ab\u52a8\uff0c\u5e94\u6309\u88ab\u52a8\u7ed3\u6784\u6765\u5904\u7406\u3002\u5982\uff1a
1)The room must have been cleaned yesterday,wasn't it?
2)The room must have been cleaned,hasn't it?

\u82e5\u53e5\u4e2d\u6709\u8868\u793a\u8fc7\u53bb\u5b8c\u6210\u65f6\u7684\u65f6\u95f4\u72b6\u8bed\uff0c\u95ee\u53e5\u90e8\u5206\u5e94\u7528hadn't.\u5982:
They must have learnt 5000 English words by the end of last term,hadn't they?
(\u672c\u9898\u4e2dmust\u8868\u63a8\u6d4b\uff0c\u5982\u679c\u5c06\u5b83\u53bb\u6389\uff0c\u8fd8\u539f\u4e3a\u771f\u5b9e\u53e5\u5c31\u662fThey had learnt 5000 English words by the end of last term.\u56e0\u6b64\uff0c\u53cd\u610f\u95ee\u53e5\u662fhadn't\uff09

must+have done\u8fc7\u53bb\u4e00\u5b9a\u505a\u4e86\u67d0\u4e8b\uff08\u5bf9\u8fc7\u53bb\u7684\u4e8b\u60c5\u4e00\u79cd\u80af\u5b9a\u7684\u731c\u6d4b\u3001\u63a8\u6d4b\uff09\u3002
\u5982\uff1a
He said I must have done something bad to deserve it.
\u4ed6\u8bf4\u6211\u80af\u5b9a\u662f\u7f6a\u6709\u5e94\u5f97\u3002
That car must have cost a packet.
\u90a3\u8f86\u6c7d\u8f66\u4e00\u5b9a\u82b1\u4e86\u4e00\u5927\u7b14\u94b1\u3002
I think we must have taken a wrong turning somewhere.
\u6211\u89c9\u5f97\u6211\u4eec\u4e00\u5b9a\u662f\u5728\u4ec0\u4e48\u5730\u65b9\u62d0\u9519\u4e86\u8def\u3002

\u6269\u5c55\u8d44\u6599
must have + \u52a8\u8bcd\u7684\u8fc7\u53bb\u5206\u8bcd\u201d\u6709\u4e09\u79cd\u610f\u601d\uff1a
1\u3001\u60f3\u5fc5\u66fe\u7ecf\u3010\u8868\u793a\u7684\u662f\u63a5\u8fd1\u4e8e\u771f\u5b9e\u60c5\u5f62\u7684\u4e00\u79cd\u63a8\u65ad\u3011
2\u3001\u60f3\u5fc5\u66fe\u7ecf\uff08\u5b9e\u9645\u4e0d\u66fe\uff09\u3010\u8868\u793a\u7684\u662f\u865a\u62df\u542b\u4e49\u3011
3\u3001\u5fc5\u987b\u66fe\u7ecf\u3002\u3010\u6307\u5728\u4e00\u79cd\u7ecf\u5386\u4e0a\u5177\u4f53\u6761\u4ef6\u7684\u8981\u6c42\u3011
\u4f8b\u5982\uff1a
You must have seen him. \u4f60\u60f3\u5fc5\u66fe\u7ecf\u89c1\u8fc7\u4ed6\u4e86\u3002
The door droops a little; there must have been something wrong with the hinges.
\u95e8\u6709\u70b9\u4e0b\u5760\uff0c\u94f0\u94fe\u4e00\u5b9a\uff08\u60f3\u5fc5\u66fe\u7ecf\uff09\u51fa\u4e86\u95ee\u9898\u3002
You must have seen her if you had been here yesterday.
\u8981\u662f\u6628\u5929\u4f60\u5728\u8fd9\u91cc\uff0c\u4f60\u4e00\u5b9a\u89c1\u5230\u4ed6\u4e86\u3002
\uff08\u5b9e\u9645\u4e0a\u6628\u5929\u4f60\u5e76\u4e0d\u5728\u8fd9\u91cc\uff0c\u6240\u4ee5\u6628\u5929\u5b9e\u9645\u4e0a\u4f60\u4e0d\u66fe\u89c1\u5230\u5979\u3002\uff09
Any applicant for this position must have practised for six years.
\u51e1\u7533\u8bf7\u8be5\u804c\u52a1\u8005\uff0c\u5fc5\u987b\u5177\u6709\u516d\u5e74\u7684\u5b9e\u8df5\u7ecf\u9a8c\u3002

must have done
网络
对过去的推测; 表示对过去的推测; 肯定已经做了; 过去一定做过某事; 一定

1
A mature performance which must have done his career prospects a world of good
肯定为他的事业打开了一片坦途的成熟表演

2
The man must have done something right, more right than all jumpers before.
这个人一定是做了些很对的事，比所有以前跳高的做得更对。

3
China must have done something supremely right to produce the economic miracle we observe.
中国一定是做了非常对的事才产生了我们见到的经济奇迹。

肯定做过；一定做了

must have done
一定要做的

必须做