noise可数吗

问题描述:

noise可数吗
为什么初中新目标英语课本初3第五单元3a里有Every night we hear strange noises outside ourwindow.这句话?

noise是可数名词说些根据Shhhhh! I thought I heard a noise. (这里为可数用法)It's difficult to work when there is too much noise. (这里为不可数用法)