this chair is made of( )A.wood B.woods C.wooden D.some woods

问题描述:

this chair is made of( )
A.wood B.woods C.wooden D.some woods

选A,当材质讲,不用复数。

A
这里呢,涉及到了两个概念
①be made from看不出原材料
be made of能看出原材料
②wood 表示“木头,木材,木料”是不可数名词.
woods表示“森林”,等同于forest.