would与could的用法
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①could(能)和was/were able to 都表示过去一般具有某种能力。
He could (was able to) swim very well when he was nine. 他九岁时就很会游泳。
②was (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,但could表示过去的习惯能力。
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。
(2)表示可能性,意思是:可能。
That big cinema can seats 2,000 people. 那家大电影院能坐2,000人。
He said he couldn't come. 他说他不能来。
(3)提出请求、疑问或看法(could是虚拟语气,代替can,在时间上与can没有区别,只是语气比can委婉。can语气直爽、肯定)。
----Could you let me have your passport?
—看看你的护照好吗?
1) 用于提出提议或邀请
例:Would you like to change a seat? It's warmer here.(您要不要换一下座位?这里暖和些。)
Would you prefer a hardback edition?(您要不要买一本精装本?)
2) 用于提出客气的要求或请求:
例: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。)
3) would you mind + doing句型通常用于表示请求对方做一件有一定麻烦的事情,语气一般都非常客气。注意回答时通常是肯定的,以表示愿意做所要求的事情。
例: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?)
4) 用于委婉地表示自己的意见:
例: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。)
He could (was able to) swim very well when he was nine. 他九岁时就很会游泳。
②was (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,但could表示过去的习惯能力。
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。
(2)表示可能性,意思是:可能。
That big cinema can seats 2,000 people. 那家大电影院能坐2,000人。
He said he couldn't come. 他说他不能来。
(3)提出请求、疑问或看法(could是虚拟语气,代替can,在时间上与can没有区别,只是语气比can委婉。can语气直爽、肯定)。
----Could you let me have your passport?
—看看你的护照好吗?
1) 用于提出提议或邀请
例:Would you like to change a seat? It's warmer here.(您要不要换一下座位?这里暖和些。)
Would you prefer a hardback edition?(您要不要买一本精装本?)
2) 用于提出客气的要求或请求:
例: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。)
3) would you mind + doing句型通常用于表示请求对方做一件有一定麻烦的事情,语气一般都非常客气。注意回答时通常是肯定的,以表示愿意做所要求的事情。
例: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?)
4) 用于委婉地表示自己的意见:
例: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。)
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