A Before Reading 1
1 The History of Paper 4
2 Ts ai Lun Invents Paper 7
3 Paper Making Spreads 9
4 Invention of the Printing Press 11
B While Reading 12
5 Invention of the Paper Machine 14
6 How a Paper Mill Works 16
7 Replacing Paper 18
8 Recycling Paper 20
9 Making Paper 21
C After Reading 25
Answer Key 27
新标准中小学分级英语读物 28