some后加可数名词还是不可数名词,any呢?

some后面既可以跟可数名词也可以跟不可数名词.
如
I have some work to do this evening.
今晚我有些事要做.
Some mushrooms are poisonous.
有些蘑菇是有毒的.
any,也是可以跟可数名词和不可数名词.只是要用在疑问句和否定句中.
I haven't any money to spare.
我的钱都用光了.
Are there any letters for me?
有我的信吗?