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英语:Could和Would的用法有什么区别

作者:职业培训 时间: 2025-01-08 03:54:11 阅读:727

情态动词could的用法多样,通常表示能力、可能性、请求、疑问或看法,以及表达惊异和与事实相反的情况。could的否定形式是couldn't,两者读作[kudnt]。例如,"Could you speak English then?"(那时你能讲英语吗?),"He said he couldn't follow me."(他说他跟不上我。)

could与was/were able to 都表示过去一般具有某种能力,但was/were able to可以表示过去某时有某种具体的能力并且实际上可以做到,而could表示过去的习惯能力。例如,"He could (was able to) swim very well when he was nine."(他九岁时就很会游泳。)"Although the driver was badly hurt, he was able to explain what had happened."(司机虽受重伤,但仍能说明发生了什么事。)

could还用于表示可能性,如"那家大电影院能坐2,000人。"(That big cinema can seats 2,000 people.)"He said he couldn't come."(他说他不能来。)

在提出请求、疑问或看法时,could代替can,语气较为委婉。例如,"Could you let me have your passport?"(看看你的护照好吗?)"Yes, here it is."(行,这就是。)

当表达惊异、不信等情绪时,could用于疑问和否定句中,语气缓和,情绪较弱。例如,"Who could have taken them?"(谁会把它们拿走了呢?)"She couldn't have left so soon."(她不可能这么快就走了。)

在表示与事实相反的情况时,could用于虚拟语气,如"How I wish I could go with you!"(我多么希望和你们一道去!)

而would则用于提出提议或邀请,如"Would you like to change a seat?"(您要不要换一下座位?)"Would you prefer a hardback edition?"(您要不要买一本精装本?)

用于提出客气的要求或请求时,would显得较为礼貌。例如,"I would like you to fetch that document for me now."(我想请你现在就帮我把那份文件取来。)"I would like to know more about your plan."(我想更多地了解一下你的计划。)

在would you mind + doing句型中,通常用于请求对方做一件有一定麻烦的事情,语气非常客气。例如,"Would you mind filling in this form?"(请您填一下这张表。)"Would you mind repeating what you just said?"(请把刚才的话重复一遍好吗?)

用于委婉地表示自己的意见时,would显得较为谦虚。例如,"I would think the journey will take something like two weeks."(依我看,这次旅程大约需要两个星期。)"I would look at the problem a little differently."(我对这个问题的看法略有不同。)

最后,would还用于表示过去经常性的行为或动作,如"The retired captain would sit hours on end watching ships sailing past."(退休的船长经常坐在海边观望过往的行船,一坐就是几个小时。)"He would go to bed strictly at 9, and on Sundays would not have lunch anywhere except in that restaurant."(他总是严格地9点上床睡觉。星期日总在那家饭店吃午饭。)

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