furniture的可数性及用法问题
1. furniture属表总称的物质名词（也有的书称之为集合名词），没有复数形式，也不能与不定冠词连用，含义上永远是单数。如：
She furnished the apartment with modern furniture. 她给那套公寓装配了现代家具。
Many things, such as toys, furniture, and computers, are made of plastic. 许多东西如玩具、家具和电脑都是塑料做的。
即使其前受到all, some等的修饰，也不能用复数。如：
I’ve just bought some new furniture. 我刚买了一些新家具。
All the furniture was covered with dust. 所有家具都落满了灰尘。
2. 若要表示“量”，可用much, little, a little, a lot of, lots of等修饰，但不能用many, few, a few等修饰。如：
The room had little furniture in it. 室内没什么家具。
There is a lot of furniture in his living-room. 他的客厅里有很多家具。
The room was small and contained far too much furniture. 房间很小而家具实在太多。
若要表示“数”可用a piece of (article, item) of等修饰。如：
A desk is an article of furniture. 书桌是一件家具。
Most people look on a television set as an essential piece of furniture. 多数人都把电视机看成是必不可少的家具。
3. 若要表示“一套家具”，可用a suite of修饰。如：
That’s a nice suite of furniture. 那是一套漂亮的家具。