Unit 1 Foreign Language Learning
  Text A Learning a Foreign Language
  Text B Five Good Reasons to Learn a Foreign Language
 Unit 2 A Path to Follow
  Text A Cracked or Perfect: We Can Make a Difference!
  Text B A Priceless Lesson in Humility
 Unit 3 Green Transportation
  Text A Bus Chick’s Manifesto
  Text B Bike to Work: Reasons You Should Try
 Unit 4 Friends and Friendship
  Text A The Greatest Gift
  Text B The Colors of Friendship
 自测题（一）答案
 Unit 5 Music and Leisure
  Text A Music as a Universal Language
  Text B Why We Need Vacations
 Unit 6 Life Lessons
  Text A Keep Your Dream
  Text B Go for It!
 Unit 7 Attitude Is Altitude
  Text A A Motivator
  Text B Attitude Is Everything
 Unit 8 The Mystery of Life
  Text A Embracing the Mystery
  Text B Research Is a State of Mind
 自测题（二）答案
 Unit 9 Making Every Minute Count
  Text A The Most Exciting Thing Ever
  Text B Keeper of the Spring
 Unit 10 Media — Blessing or Curse
  Text A Advertising to Children
  Text B The Illusion of Perfection
 Unit 11 Effective Communication
  Text A Active Listening
  Text B Effective Communication
 Unit 12 Technology: A Double-edged Sword
  Text A Privacy in Our High-tech Society
  Text B Worse Living through Better Technology
 自测题（三）答案