"你要喝点水吗？" 是 Do you have any water 还是 Would you like some water？好多孩子一到疑问句就无脑 any。
基础规则
- 肯定句用 some：I have some apples.
- 否定句用 any：I don't have any apples.
- 普通疑问句用 any：Do you have any apples?
例外：期待对方答应的疑问句
请客、提建议、发邀请时，虽然是问句，但心里期待对方说"好"，这时候还是用 some：
- Would you like some tea? 想喝点茶吗？
- Can I have some water? 能给我点水吗？
- Why not eat some cake? 来点蛋糕呗？
some 和 any 还能当代词
省略后面的名词，直接当代词用：
- Do you have any questions? — No, I don't have any.
- I don't have any pens, but Tom has some.
复合不定代词
- something / somebody / someone（肯定）
- anything / anybody / anyone（否定疑问）
- 但请求句里：Would you like something to drink?
一句口诀：肯定 some 疑问 any，请客期待 some 留；复合词同理套，别死记硬背全用 any。
