Cambridge Grammar of English Hardback with cd-rom a comprehensive Guide

Do you want, will you have and would you like

418e 

Do you want

, will you have and would you like are all used to offer physical

things, especially food and drink. Will you have is more polite than do you want,

and would you like is the most polite:

A: Jake, 

do you want some fruit or anything now?

Have some fruit, have a

banana or a tangerine or something. Jake, 

what 

would you like?

Apple?

Would you like a banana?

B: Yes please.

A: 

Would you like some soup? 

B: Mm, please.

A: 

Will you have a cup of coffee? 

B: No thanks, no I’m alright.

Would you like to

can also be used in a way which involves the speaker more

directly in an offer to do something, by adding a first person pronoun:

[customer (A) and travel agent (B)]

A: Is there the child’s discount for that one? 

B: 

Would you like me to check on a full costing for you now?

A: Yes please.

(compare: Shall I check on a full costing?/Would you like a full costing?)