当我们用newspaper表示报纸的种类或是用于阅读的报纸时，它指的是可数名词，当newspaper用于表示废弃的报纸或是用来包裹物品的报纸，即仅仅将newspaper当作“纸”来看待时，它是不可数的。

newspaper的用例

当newspaper可数时：

Newspapers littered the floor. 报纸扔了一地。

Newspapers are a medium for advertising. 报纸是广告的媒介。

He often writes articles for newspapers. 他常为报社写文章。

They read heaps of newspapers. 他们阅读了大量的报纸。

The newspapers are full of depressing news. 报纸充满令人抑郁的消息。

I’ve got so little time; I hardly ever read newspapers. 我时间很紧，不怎么看报。

Our company advertises on television and in newspapers.我们的公司在电视和报纸上做广告。

His mother learned of her son’s success in the newspapers.他母亲从报纸上得知她儿子成功的消息。

当newspaper不可数时：

He wrapped the present in newspaper. 他把礼物用报纸包起来。