some用于肯定句中,any用于否定句或疑问句中 eg:I have some books. Do you have any books? I don't have any books. 但也有特例,some用于疑问句中时表示委婉语气,希望得到对方的肯定回答 eg:May I have some juice? Can you lend me some money 而any用于肯定句中,表示“任何一个” eg:Tom is taller than any other one in our class.