Question

Would you like to do sth和Do you want to do sth的区别是什么？

比如：
Would you like a glass of water?
Do you want a glass of water?
以上的两句话在意义表达和情感上有什么区别

Answer 1

would like 是固定搭配,表示 = 想要
1.婉转/客气地提问= would you like to do.
2.婉转/客气地.表示自己的看法/需求= I would like to say/do ...
Do you want = 比较直接,用在熟悉的人之间

would you like...这种询问语气更为婉转.
译为你想要.你喜欢.
would you like 可以跟名词 eg.would you like some coffee?
would you like to 后加动词原形 eg.would you like to go with me?
相同点 【would you like to...=do you want to...】
不同点【would you like some milk?(用some表一些)】
【 Do you want any milk?(用any表一些)】

Answer 2

would 是表尊敬，咨询，你是否需要来一杯。
do 是平常表述，你要不要来一杯水？

Answer 3

一个是咨询，一个是普通