如题所述
一、can you 比较直接的询问，例如：
Can you confirm this?
这个你能确定吗？
Can you come at 10.30? I know it's inconvenient for you, but I must see you
你能10点半来吗？我知道你不方便，但是我必须见你。
I mean, how crazy can you get?
我是说，你真是太疯狂了。
Can you spare one of them for me?
你能把其中的一个匀给我吗？
What about my copier? Can you get it going again?
我的复印机怎么样了？你能把它修好吗？
二、could you please，语气比较客气。例如：
Sir, could you please come to the commanding officer's office?
长官，请您到指挥官的办公室来一下好吗？
Could you please fill in this booking form.
请您填一下这张预定单。
Could you please tell us the truth? That is very important to us.
请问能告诉我们实情吗？这对我们太重要了。
Could I have your name once again, and could you please tell me how I can reach you?
请你再告诉我你的名字和怎样跟你联络？
Could you please return these books for me?
可不可以请你帮我还这些书？
温馨提示：答案为网友推荐，仅供参考
第1个回答 推荐于2018-02-23
can you 比较直接，有点象中文里的“你能告诉我图书馆怎么走？”
could you please，比较客气，有点像中文“劳驾，请问您能告诉我图书怎么走？”本回答被提问者和网友采纳
could you please，比较客气，有点像中文“劳驾，请问您能告诉我图书怎么走？”本回答被提问者和网友采纳
第2个回答 2016-03-22
could的否定形式是could not,多缩写为couldn't,
（1）表示能力,意思是：能,会.
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.
（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?
----Yes,here it is.
（4）表示惊异、不信等情绪（用于疑问和否定句中,此时could与can用法相同,无时间上的差别,用could语气缓和,情绪要弱）.
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.
（5）表示与事实相反的情况（用于虚拟语气）.
I would certainly do it for you if I could.要是我能做得到,我一定会为你们做这事儿.
How I wish I could go with you!我多么希望和你们一道去!
（1）表示能力,意思是：能,会.
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.
（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?
----Yes,here it is.
（4）表示惊异、不信等情绪（用于疑问和否定句中,此时could与can用法相同,无时间上的差别,用could语气缓和,情绪要弱）.
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.
（5）表示与事实相反的情况（用于虚拟语气）.
I would certainly do it for you if I could.要是我能做得到,我一定会为你们做这事儿.
How I wish I could go with you!我多么希望和你们一道去!
第3个回答 2016-03-22
后者语气更客气些
第4个回答 2016-03-22
第二个更委婉
