限定词之后通常须跟有形容词或其他前置修饰语， 随后才可用替代词one。比如可以说： Can I have a melon?I'd like a big one. Your car isn't fast enough.Let's take his new one $而不可以说： ...I'd like a one.(x) ..Let's take his one.(x) 号在both和own之后通常不用one或ones。例如： I prefer roses to white ones,but my wife likes both. 说both ones) I can't write properly with your pen;I'd rather use my own.(不说ny own one) If there's any difficulty about cars,we can bring our own.(不说our own ones) 55 限定词之后通常须跟有形容词或其他前置修饰语， 随后才可用替代词one。比如可以说： ⚫ Can I have a melon? I’d like a big one. ⚫ Your car isn’t fast enough. Let’s take his new one. 而不可以说： …I’d like a one. (╳) …Let’s take his one. (╳) 在both和own之后通常不用one或ones。例如： ⚫ I prefer roses to white ones, but my wife likes both. (不 说 both ones) ⚫ I can’t write properly with your pen; I’d rather use my own. (不说 my own one) ⚫ If there’s any difficulty about cars, we can bring our own. (不说 our own ones)