一、news的用法
  1. 表示“消息”“报道”,是不可数名词。如:
  现在报道几条有趣的新闻。
  误:Here are some interesting news.
  正:Here is some interesting news.
  正:Here are some interesting pieces [items] of news.
  2. 表示“有关……的消息或报道等”,通常后接介词 of, about。如:
  What’s the latest news about the election? 选举的最新消息是什么?
  I was happy at the news of his return. 听到他归来的消息我很高兴。
  二、newspaper的用法
  1. 表示“报纸”,可视为 news(消息)和paper(纸)组合而成,但两者均为不可数名词,而 newspaper作为供人阅读或传递信息的一种东西——报纸,它是可数的。如:
  我进来时他在读报纸。
  误:When I entered he was reading a piece of newspaper.
  正:When I entered he was reading a newspaper.
  比较:a piece of news (paper) 一条新闻(一张纸)
  但是值得注意的是:若不是将 newspaper当作是供阅读或传递信息的一种东西,而是把它仅仅当成一种“纸”来看待,则也可用作不可数名词。如:
  Wrap it in (a sheet of) newspaper. 用(张)报纸把它包起来。
  2. 其前用介词 in 和 on, 含义有差别:
  Look, there is a photo in the newspaper. 瞧,报上登有一张照片。
  Look, there is a photo on the newspaper. 瞧,报上放有一张照片。