我们可以从词义,用法上来分析
1.some 一些
many 很多
2.some 可修饰可数和不可数名词some boys,some water;
many修饰可数名词
many books。
3.some 通常肯定句用;如:There are some girls in the classroom.
4.有时也用于疑问句
表示期望得到肯定回答,并不表示对某事有疑问.如:Will you give me some water?
但是,当some用于句子中表示疑问时,要将sime变成any
如:There is some water in the bowl.
---Is there any water in the bowl?
many可做代词或形容词,复数替代或修饰可数名词