追问：你可不可以举一些例子 回答：newspaper可数吗?tear可数吗?请看看下面这道题,你不会出错吧：
I found her sitting in the corner,reading _____ newspaper,with _____ in her eyes.
A.a,tear B.a piece of,tears
C.a,tears D.a piece of,tear
【陷阱】误选D,许多学生错误地认为,既然news(消息)和 paper(纸)均为不可数名词,那么newspaper(报纸)也应是不可数的；同时认为“眼泪”即“泪水”,“水”不可数,“泪水”和“眼泪”也应该不可数.
Her eyes filled with tears.她热泪盈眶.
She dried her tears with a handkerchief.她用手帕擦干了眼泪.
The newspapers were full of lies.报纸上一片谎言.