目录

  • 1 Unit 1  Festivals around the world
    • 1.1 Speaking
    • 1.2 Reading
    • 1.3 Language Practice
  • 2 Unit 2 Community Life
    • 2.1 Speaking
    • 2.2 Reading
    • 2.3 Language Practice
  • 3 Unit 3 Artificial Intelligence
    • 3.1 Speaking
    • 3.2 Reading
    • 3.3 Language Practice
  • 4 Unit 4 Customer Service
    • 4.1 Speaking
    • 4.2 Reading
    • 4.3 Language Practice
  • 5 Unit 5 Natural Wonders in the World
    • 5.1 Speaking
    • 5.2 Reading
    • 5.3 Language Practice
  • 6 Unit 6 Living History of Culture
    • 6.1 Speaking
    • 6.2 Reading
    • 6.3 Language Practice
  • 7 Unit 7 Natural Disasters
    • 7.1 Speaking
    • 7.2 Reading
    • 7.3 Language Practice
  • 8 Unit 8 Role Models
    • 8.1 Speaking
    • 8.2 Reading
    • 8.3 Language Practice
Reading
  • 1
  • 2 补充
  • The Prevention and control of sand.

  • 绿水青山就是金山银山的出处,CGTN。

  • What is ACID RAIN?

  • 可持续发展的概念