Would you like ... ?(你想要) I'd like ...

Would you like ... ? = Do you want ... ? 

We use Would you like ... ? to offer things:(提供的东西)

• Would you like some coffee ?
• No,thank you .

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We use Would you like to ... ? to invite somebody:(邀请某人)

• Would you like to go for a walk 

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Would you like some tea? = Do you want some tea ?你想喝茶吗？：表示现在的决定

Do you like tea ? = Do you think tea is nice? 你喜欢喝茶吗? ：表示通常的决定

例句：

Would you like a chocolate ? Yes ,please .(表示现在的决定）

Do you like bananas ? Yes ,l love them . (表示通常的决定）