newspaper,homework是不可数名词吗?请问如何区分可数名词和不可数名词?“当newspaper是指平常的报纸时可数，如果是废报纸不可数”。请问这说法对吗？

English homework:certain newspaper是什么意思? newpaper是可数名词还是不可数名词?为什么有的时候newspaper要加S，newspaper又不加Snewspaper 和 newpaper newspaper,homework是不可数名词吗?请问如何区分可数名词和不可数名词?“当newspaper是指平常的报纸时可数，如果是废报纸不可数”。请问这说法对吗？ today's newspaper中的newspaper 为什么不加s newspaper newspaper是可数名词吗? newspaper是可数名词吗 newspaper是可数的吗如题 She is reading newspaper ,a newspaper ,newspapers,是哪个? 请问newspaper为什么不加S on newspaper / on the newspaper in newspaper / in the newspaper 他们哪个是对的,分别意思是什么? 两份报纸和两张报纸英文怎么说?我知道newspaper是可数明词我们说一份报纸 a newspaper 两张报纸能不能用 two newspaper 为什么还有两张报纸怎么说谢谢还有个问题读报纸的英文是read newspaper 还是re 初级英语语法.At night,the children always do their homework.Then they go to bed.Mr.Sawyer usually rads his newspaper.but sometimes he and his wife watch television.-----------------------------这是新概念一册的一段课文内容.我想 关于时间状语从句中after和when的问题I wil read some newspaper.I finish my homework.（合并为一句） _______I finish my homework,I will read some newpaper.这个空格中为什么不能用after,必须用when呢?原因说具体些. I have read today's newspaper的newspaper为什么不加s newspaper是可数名词还是不可数名词? newspaper是可数名词还是不可数? newspaper magazine是可数还是不可数