问题
选择题
—Do you believe that paper is made _____wood ?
—Yes, I do . And you can see that books are made _____paper.
A．from , from
B．from , of
C．of ,from
D．of ,of
答案
答案：B
题目分析： be made of 由……制成，原材料性质不发生变化，只在形状大小上变化，即物理变化。be made from,由···制成，原材料发生化学变化，或用途发生改变。句意：你相信纸是由木头制成的吗？是的。那你能看到书是由纸制成的吗？木头制纸，发生化学变化。纸制书，物理变化。故选B。