could 的用法 could的用法和can的关系
could\u7684\u7528\u6cd5can \u548c could \u7528\u6cd5\u8be6\u89e3
1. \u8868\u793a\u80fd\u529b\uff0ccould \u662f can \u7684\u8fc7\u53bb\u3002\u5982\uff1a
Can you speak English? \u4f60\u4f1a\u8bf4\u82f1\u8bed\u5417?
Could you speak English then? \u90a3\u65f6\u5019\u4f60\u4f1a\u8bf4\u82f1\u8bed\u5417?
2. \u8868\u793a\u8bb8\u53ef\uff0c\u6ce8\u610f\u4ee5\u4e0b\u7528\u6cd5\uff1a
(1) \u5bf9\u4e8e\u73b0\u5728\u6216\u5c06\u6765\u7684\u201c\u8bb8\u53ef\u201d\uff0c\u8981\u533a\u5206\u4ee5\u4e0b\u4e24\u79cd\u60c5\u51b5\uff1a
a. \u8868\u793a\u8bf7\u6c42\u5141\u8bb8(\u5373\u8bf7\u6c42\u522b\u4eba\u5141\u8bb8\u81ea\u5df1\u505a\u67d0\u4e8b)\uff0c\u53ef\u7528 can(=may)\u6216 could(=might)(\u6ce8\u610f\uff1a\u8fd9\u91cc\u7684 could \u5e76\u4e0d\u8868\u793a\u8fc7\u53bb\uff0c\u800c\u662f\u8868\u793a\u73b0\u5728\uff0c\u53ea\u662f\u8bed\u6c14\u8f83\u59d4\u5a49)\u3002\u5982\uff1a
Can [May, Could, Might] I come in? \u6211\u53ef\u4ee5\u8fdb\u6765\u5417?
b. \u8868\u793a\u7ed9\u4e88\u5141\u8bb8(\u5373\u81ea\u5df1\u5141\u8bb8\u522b\u4eba\u505a\u67d0\u4e8b)\uff0c\u4e00\u822c\u53ea\u7528 can(=may)\uff0c
\u800c\u4e0d\u80fd\u7528 could \u6216 might\u3002\u5982\uff1a
A: Could [Can] I use your pen? \u6211\u53ef\u4ee5\u501f\u7528\u4f60\u7684\u94a2\u7b14\u5417?
B: Yes, of course you can. \u5f53\u7136\u53ef\u4ee5\u3002(\u6ce8\u610f: \u6b64\u5904\u4e0d\u7528 Yes,
you could)
(2) \u5bf9\u4e8e\u8fc7\u53bb\u7684\u201c\u8bb8\u53ef\u201d\uff0c\u4e5f\u8981\u533a\u5206\u4ee5\u4e0b\u4e24\u79cd\u60c5\u51b5\uff1a
a. \u8868\u793a\u8fc7\u53bb\u4e00\u822c\u6027\u5141\u8bb8(\u5373\u8868\u793a\u67d0\u4eba\u968f\u65f6\u90fd\u53ef\u4ee5\u505a\u67d0\u4e8b)\uff0c\u7528 can\u7684\u8fc7\u53bb\u5f0f(\u5373 could)\u3002\u5982\uff1a
When I lived at home, I could watch TV whenever I wanted
to. \u6211\u4f4f\u5728\u5bb6\u91cc\u65f6\uff0c\u60f3\u4ec0\u4e48\u65f6\u5019\u770b\u7535\u5f71\u5c31\u53ef\u4ee5\u4ec0\u4e48\u65f6\u5019\u770b (\u4e00\u822c\u6027\u5141\u8bb8)\u3002
b. \u8868\u793a\u8fc7\u53bb\u7279\u5b9a\u7684\u5141\u8bb8( \u5373\u8868\u793a\u5728\u8fc7\u53bb\u67d0\u4e00\u7279\u5b9a\u60c5\u51b5\u4e0b\u5141\u8bb8\u8fdb\u884c\u67d0\u4e00\u6d3b\u52a8)\uff0c\u5219\u4e0d\u7528 could, \u800c\u9700\u6362\u6210\u5176\u5b83\u8868\u8fbe(\u5982\uff1ahad permission\u6216 was [were] allowed to)\u3002\u5982\uff1a
I was allowed to see the film yesterday evening. \u6628\u5929\u665a \u4e0a\u5141\u8bb8\u6211\u53bb\u770b\u4e86\u7535\u5f71(\u7279\u5b9a\u7684\u5141\u8bb8\uff0c\u6240\u4ee5\u4e0d\u80fd\u7528 could)\u3002
3. \u8868\u793a\u63a8\u6d4b\uff1a
(1) \u5bf9\u73b0\u5728\u6216\u5c06\u6765\u7684\u63a8\u6d4b\uff0ccan \u901a\u5e38\u53ea\u7528\u4e8e\u5426\u5b9a\u53e5\u6216\u7591\u95ee\u53e5\u4e2d\uff0c\u4e00\u822c\u4e0d\u7528\u4e8e\u80af\u5b9a\u53e5\uff1a
It can\u2019t be true. \u90a3\u4e0d\u53ef\u80fd\u662f\u771f\u7684\u3002
What can they be doing? \u4ed6\u4eec\u4f1a\u5728\u5e72\u4ec0\u4e48\u5462?
Can it be Jim? \u90a3\u4f1a\u662f\u5409\u59c6\u5417?
\u4f46 could(\u53ef\u4ee5\u8868\u793a\u73b0\u5728)\u5219\u53ef\u7528\u4e8e\u80af\u5b9a\u53e5\u4e2d\uff1a
We could [may, might] go to Guilin this summer. \u4eca\u5e74\u590f\u5929\u6211\u4eec\u53ef\u80fd\u8981\u53bb\u6842\u6797\u3002(\u5c06\u6765\u53ef\u80fd\u6027)
You could [may, might] be right, but I don\u2019t think you are. \u4f60\u53ef\u80fd\u662f\u5bf9\u7684\uff0c\u4f46\u6211\u5e76\u4e0d\u8ba4\u4e3a\u4f60\u662f\u5bf9\u7684\u3002(\u73b0\u5728\u53ef\u80fd\u6027)
\u6ce8\u610f\uff1acan \u6709\u65f6\u4e5f\u7528\u4e8e\u80af\u5b9a\u53e5\u4e2d\u8868\u793a\u63a8\u6d4b\uff0c\u8fd9\u4e3b\u8981\u89c1\u4e8e\uff1a
a. \u8868\u793a\u7406\u8bba\u4e0a\u7684\u53ef\u80fd\u6027(\u5373\u4ece\u7406\u8bba\u4e0a\u6216\u903b\u8f91\u4e0a\u5206\u6790\u662f\u53ef\u80fd\u7684\uff0c\u4f46\u5b9e\u9645\u672a\u5fc5\u4f1a\u53d1\u751f)\u3002\u5982\uff1a
Anybody who wants to can become a prison visitor. \u53ea\u8981\u613f\u610f\uff0c\u4efb\u4f55\u4eba\u90fd\u53ef\u4ee5\u5230\u76d1\u72f1\u53bb\u5e2e\u52a9\u89e3\u51b3\u72af\u4eba\u7684\u56f0\u96be\u3002
Mary is in poor health. She can be ill at any time. \u739b\u4e3d\u7684\u8eab\u4f53\u4e0d\u597d\uff0c\u5979\u968f\u65f6\u90fd\u53ef\u80fd\u4f1a\u751f\u75c5\u3002
Evem experienced teachers can make mistakes. \u5373\u4f7f\u662f\u6709\u7ecf\u9a8c\u7684\u6559\u5e08\u4e5f\u53ef\u80fd\u51fa\u9519\u3002
b. \u540e\u63a5\u201cbe, get, seem, become\uff0b\u5f62\u5bb9\u8bcd\u201d\uff0c\u8868\u793a\u201c\u6709\u65f6\u4f1a\u201d\u3001\u201c\u65f6\u5e38\u4f1a\u201d\u7b49\u4e49\u3002\u5982\uff1a
It can get very hot here. \u8fd9\u91cc\u6709\u65f6\u4f1a\u5f88\u70ed\u3002
She can be very unpleasant. \u5979\u6709\u65f6\u5f88\u4ee4\u4eba\u8ba8\u538c\u3002
My grandmother could be very unpleasant at times. \u6211\u7956 \u6bcd\u6709\u65f6\u5019\u4f1a\u8ba9\u4eba\u975e\u5e38\u4e0d\u6109\u5feb\u3002
(2) \u5bf9\u8fc7\u53bb\u7684\u63a8\u6d4b\uff0c\u5fc5\u987b\u5728 can, could \u4e4b\u540e\u63a5\u52a8\u8bcd\u7684\u5b8c\u6210\u5f0f\uff1a
a. can\uff0bhave\uff0b\u8fc7\u53bb\u5206\u8bcd(\u4e3b\u8981\u7528\u4e8e\u5426\u5b9a\u53e5\u6216\u7591\u95ee\u53e5\uff0c\u4e00\u822c\u4e0d\u7528\u4e8e\u80af\u5b9a\u53e5)\u3002\u5982\uff1a
I saw him just now;he can\u2019t have gone to Japan. \u6211\u521a\u521a\u89c1\u8fc7\u4ed6\uff0c\u4ed6\u4e0d\u53ef\u80fd\u5230\u65e5\u672c\u53bb\u4e86\u3002
Why does he know this? Can someone have told him about it? \u4ed6\u600e\u4e48\u77e5\u9053? \u4f1a\u662f\u54ea\u4e2a\u4eba\u544a\u8bc9\u4ed6\u4e86\u5417?
b. could\uff0bhave\uff0b\u8fc7\u53bb\u5206\u8bcd(\u53ef\u7528\u4e8e\u80af\u5b9a\u53e5\u3001\u5426\u5b9a\u53e5\u6216\u7591\u95ee\u53e5)\uff0c\u4e3b\u8981\u7528\u4e8e\uff1a
\u2460\u8868\u793a\u5bf9\u8fc7\u53bb\u7684\u63a8\u6d4b\uff0c\u5176\u610f\u4e3a\u201c\u53ef\u80fd(\u5df2\u7ecf)\u2026\u2026\u201d\u3002\u5982\uff1a
He could have gone home. \u4ed6\u53ef\u80fd\u5df2\u56de\u5bb6\u4e86\u3002
Where could he have gone? \u4ed6\u4f1a\u5230\u54ea\u91cc\u53bb\u4e86\u5462?
He couldn\u2019t have seen her there. \u4ed6\u4e0d\u53ef\u80fd\u5728\u90a3\u513f\u89c1\u5230\u5979\u3002
\u3000\u2461\u8868\u793a\u8fc7\u53bb\u6ca1\u6709\u5b9e\u73b0\u7684\u53ef\u80fd\u6027(\u5373\u67d0\u4e8b\u672c\u6765\u53ef\u4ee5\u53d1\u751f\uff0c\u4f46\u5374\u6ca1\u6709\u53d1\u751f)\uff0c\u610f\u4e3a\u201c\u672c\u6765\u53ef\u4ee5\u2026\u2026\u201d\u3002\u5982\uff1a
He could have told her, but he didn\u2019t choose to. \u4ed6\u672c\u6765\u53ef\u4ee5\u544a\u8bc9\u5979\u7684\uff0c\u4f46\u4ed6\u6ca1\u6709\u8fd9\u6837\u505a\u3002
\u2462\u7528\u6765\u59d4\u5a49\u5730\u8d23\u5907\u67d0\u4eba\u8fc7\u53bb\u5e94\u8be5\u505a\u67d0\u4e8b\u800c\u6ca1\u6709\u53bb\u505a\uff0c\u610f\u4e3a\u201c\u672c\u6765\u5e94\u8be5\u2026\u2026\u201d\u3002\u5982\uff1a
You could have helped him. \u4f60\u672c\u6765\u5e94\u8be5\u6765\u5e2e\u52a9\u4ed6\u7684\u3002
\u2463\u8868\u793a\u201c\u5dee\u70b9\u513f\u5c31\u8981\u201d\u3002\u5982\uff1a
I could have died laughing.
can (could) \u8868\u793a\u201c\u80fd\uff0c\u53ef\u4ee5\uff0c\u540c\u610f\uff0c\u51c6\u8bb8\u4ee5\u53ca\u5ba2\u89c2\u6761\u4ef6\u8bb8\u53ef\u201d\uff0ccould \u4e3a can \u7684\u8fc7\u53bb\u5f0f\uff0c\u7528\u4e8e\u4e00\u822c\u73b0\u5728\u65f6\u6001\u65f6\u8bed\u6c14\u8f83can\u59d4\u5a49\uff0c\u5e38\u7528\u4e8e\u8868\u793a\u8bf7\u6c42\u7684\u4e00\u822c\u95ee\u53e5\u4e2d\u3002
\u57fa\u672c\u7528\u6cd5
1. \u8868\u793a\u80fd\u529b\uff08\u5982\u4f53\u529b\u548c\u8111\u529b\u65b9\u9762\uff09\uff0c\u610f\u4e3a\u201c\u80fd\uff1b\u4f1a\u201d\u7b49\u3002\u4f8b\u5982\uff1a
Can you speak English? \u4f60\u4f1a\u8bb2\u82f1\u8bed\u5417\uff1f
Can you play the piano? \u4f60\u4f1a\u5f39\u94a2\u7434\u5417\uff1f
Could you ride a bike when you was four?\u4f60\u56db\u5c81\u65f6\u4f1a\u9a91\u81ea\u884c\u8f66\u5417\uff1f
2. \u8868\u793a\u8bf7\u6c42\u6216\u5141\u8bb8\uff0c\u591a\u7528\u5728\u53e3\u8bed\u4e2d\uff0c\u610f\u4e3a\u201c\u53ef\u4ee5\uff1b\u80fd\u201d\u7b49\u3002\u7528\u4e8e\u7591\u95ee\u53e5\u4e2d\u7528\u6765\u63d0\u51fa\u8981\u6c42\uff0c\u7528\u4e8e\u5426\u5b9a\u53e5\u8868\u793a\u4e0d\u5141\u8bb8\u3002\u4f8b\u5982\uff1a
1\uff09Can I help you? \u6211\u80fd\u5e2e\u52a9\u4f60\u5417\uff1fCan I...\uff1f\u201c\u6211\u53ef\u4ee5\u2026\u2026\u5417\uff1f\u201d\u7528\u6765\u5f81\u6c42\u5bf9\u65b9\u662f\u5426\u5141\u8bb8\u81ea\u5df1\u505a\u67d0\u4e8b\u3002
2\uff09Can /could you help me? \u8bf7\u4f60\u5e2e\u52a9\u6211\u597d\u5417\uff1fCan / Could you...\uff1f\u201c\u8bf7\u4f60\u2026\u2026\u597d\u5417\uff1f\u201d\u8868\u793a\u8bf4\u8bdd\u4eba\u7684\u8bf7\u6c42\uff1b\u5982\u5728\u53e5\u4e2d\uff08\u672b\uff09\u52a0\u4e0aplease\u4e00\u8bcd\u5c31\u663e\u5f97\u66f4\u6709\u793c\u8c8c\u4e86\u3002\u4f8b\u5982\uff1aCan/Could you please help me ? =Can / COuld you help me, please?
You can\u2019t play basketball. \u4f60\u4e0d\u80fd\u73a9\u7bee\u7403\u3002
3. \u8868\u793a\u53ef\u80fd\u3002\u4f8b\u5982\uff1a
He can be at home now. \u4ed6\u73b0\u5728\u53ef\u80fd\u5728\u5bb6\u3002
The moon can\u2019t always be full. \u6708\u4eae\u4e0d\u53ef\u80fd\u5e38\u5706\u3002
4. \u8868\u793a\u6000\u7591\u3002\u5728\u8868\u8fbe\u6b64\u610f\u65f6\uff0c\u53ea\u80fd\u7528\u4e8e\u4e00\u822c\u7591\u95ee\u53e5\u4e2d\uff0c\u5e26\u6709\u611f\u60c5\u8272\u5f69\u3002\u4f8b\u5982\uff1a
Can it be true? \u90a3\u4f1a\u662f\u771f\u7684\u5417\uff1f
（多用于间接引语中）
At that time we thought the story could not be true.
那时我们认为所说的事不可能是真的。
Father said I could swim in the river.
爸爸说我可以在河里游泳。
二、表过去的能力
I could swim when I was only six.
我刚六岁就能游泳。
Could在肯定句中表示过去的能力时，常表抽象的一般的能力。
He could be very naughty when he was a child.
他小时候会是很顽皮的。
三、表“允许”
可表示委婉客气的提出问题或陈述看法
Could I use your bike?
Yes, you can.
I’m afraid I couldn’t give you an answer today.
恐怕我今天不能回答你。
The teacher said you could go to the store for sweets.
老师说你可以去商店买糖。
四、Could/can+have done 结构表示对过去发生的事情的“怀疑”或“不肯定”
could 加完成式还用于肯定句时一般表过去可能完成而却未完成的动作。
You could have completed the task a little earlier.
你本来能早点完成任务的。（但事实上并没有提前完成任务）
I could have passed my examination easily but I made too many stupid mistakes.
我本可以轻易通过考试，但我犯了太多不该犯的错误。
如表具体做某一件事的能力时，则须用 be able to .
He was able to translate the article without a dictionary.
他可以不用词典翻译那篇文章。
Can表示一贯的能力 ，be able to表示客观能力和通过努力可以达到的能力
I can’t swim. But I am sure I will be able to swim through more practicing.
The fire spread through the hotel, but everyone was able to get out
When the boat sank he was able to swim to the bank
还有问题可以追问，满意望采纳~
扩展阅读：could 提问 两种回答 ... could you的用法及回答 ... can could用法口诀 ... couldn t have done ... could的三种用法 ... couldn t 的用法 ... could i 的回答 ... can could 的区别与用法 ... could的正确发音 ...
