a lot of paper is made from wood这里使用is吗为什么呀

a lot of paper is made from wood这里使用is吗为什么呀
a lot of paper is made from wood这里使用is吗为什么呀

a lot of paper is made from wood这里使用is吗为什么呀
a lot of paper 当中的paper 看作是单数 所以 用is
复数：papers 如果是出现这个 就是 are

paper是不可数名词