是的,但有时候也不尽然.如果你在向别人发出邀请,或期望对方对你的问题作出肯定回答时就还用some,如Would you like some cakes或Can I ask you some questions等等,至于为什么,我也不知道,应该是约定俗成的语法习惯吧!
Would you like some juice?