前辅文
 Unit1
  Section I Main Ideas and Important Details
   Passage 1 Zimbabwe’s Children Are “Wasting Away”
   Passage 2 Fashions
   Passage 3 When Did Americans Begin Sending Greeting Cards?
  Section II Listening-Based Integrated Exercises
   Passage 1 Manners and Customs in Different Cultures
   Passage 2 Laziness
   Passage 3 Direct and Indirect Taxation
  Section III Optional Listening Exercises
   Passage 1 Jump
   Passage 2 White and Black
   Passage 3 The Origin of the Song—“Happy Birthday to You”
 Unit2
  Section I Main Ideas and Important Details
   Passage 1 The Effects of the Internet
   Passage 2 Windows XP
   Passage 3 Internet Blogs
  Section II Listening-Based Integrated Exercises
   Passage 1 Finding Friends on the Internet
   Passage 2 Emotion-Sensitive Computer
   Passage 3 Roborior: A Robot House-Sitter
  Section III Optional Listening Exercises
   Passage 1 Low-Cost Computer Under Research
   Passage 2 The Process of Information Transferring
   Passage 3 Good Aspects of the Disaster
 Unit3
  Section I Main Ideas and Important Details
   Passage 1 Why Do Sharks Bite Human Being?
   Passage 2 A Spider’s Story
   Passage 3 The Fish in Great Danger
  Section II Listening-Based Integrated Exercises
   Passage 1 The Complex Social Structure of Ant Societies
   Passage 2 Snakes Are Not as Fearful as You May Have Thought
   Passage 3 Secrets of the Spider Web
  Section III Optional Listening Exercises
   Passage 1 The Study on Birds’ Sleep
   Passage 2 The Biggest Disney World
   Passage 3 Crime as a Worldwide Problem
 Unit4
  Section I Main Ideas and Important Details
   Passage 1 The Legal Marriage Age for Young Americans
   Passage 2 The Nuclear and Extended Family
   Passage 3 Obama Talks About Fatherhood
  Section II Listening-Based Integrated Exercises
   Passage 1 Saving for a Baby
   Passage 2 Problems with Parent-Child Relationships
   Passage 3 The History of the Custom of Eating with a Fork
  Section III Optional Listening Exercises
   Passage 1 Why Do Americans Love Uniforms?
   Passage 2 Pizza: a World Popular Food
   Passage 3 The Trends of Interdependent Future
 Unit5
  Section I Main Ideas and Important Details
   Passage 1 The Differences Between Teaching and Learning
   Passage 2 Being a Writer Is Not Easy
   Passage 3 A Biography of Alexander Fleming
  Section II Listening-Based Integrated Exercises
   Passage 1 The Magic Memory Glasses
   Passage 2 Doubts About Speed Reading
   Passage 3 Education in China
  Section III Optional Listening Exercises
   Passage 1 A Love Story in Greek Mythology
   Passage 2 A Scientific Research on the Power of Positive Thinking
   Passage 3 Unofficial Strikes in Britain Unit
 Unit6
  Section I Main Ideas and Important Details
   Passage 1 Are Small Aircraft a Good Alternative?
   Passage 2 Tour in London
   Passage 3 Electromagnetic Interference: a Cause of Aircraft Crashes
  Section II Listening-Based Integrated Exercises
   Passage 1 The Victoria Line: a Special Railway
   Passage 2 Why Do People Enjoy Traveling?
   Passage 3 What Will the 2020 Car Look Like?
  Section III Optional Listening Exercises
   Passage 1 The Wright Brothers and Flying Machines
   Passage 2 Car’s Continued Popularity
   Passage 3 Who Doesn’t Need to Wear a Seat Belt?
 Unit7
  Section I Main Ideas and Important Details
   Passage 1 Special Methods to Reduce Population in Brazil
   Passage 2 It’s Time to Protect the Earth
   Passage 3 Beautiful Cities out of Garbage
  Section II Listening-Based Integrated Exercises
   Passage 1 The Jujube Plant That Will Save Whales
   Passage 2 The Weather Prediction for Asia in 2050
   Passage 3 Lack of Water and Solutions to It
  Section III Optional Listening Exercises
   Passage 1 Water Erosion
   Passage 2 The Way to Reducing Car Pollution
   Passage 3 Agriculture in the U.S.A.
 Unit8
  Section I Main Ideas and Important Details
   Passage 1 A Guide to Health for Tourists
   Passage 2 Avian Influenza
   Passage 3 Cola: a Cure for Headache
  Section II Listening-Based Integrated Exercises
   Passage 1 Health Is Most Precious
   Passage 2 Keeping Pets to Reduce the Risk of Heart Disease
   Passage 3 Concerns over Lack of Sleep in the U.S.A.
  Section III Optional Listening Exercises
   Passage 1 The Importance of Rest in Athletic Training
   Passage 2 The Importance of Medical Insurance
   Passage 3 Negative Attitudes Toward Euthanasia
 Unit9
  Section I Main Ideas and Important Details
   Passage 1 Visual Communication
   Passage 2 Forms of Pub-Talk
   Passage 3 The Way People Communicate
  Section II Listening-Based Integrated Exercises
   Passage 1 The Advantage of Emails
   Passage 2 IPod Media Players and MP3 Players
   Passage 3 How to Get the Best Email Account
  Section III Optional Listening Exercises
   Passage 1 On-Line Communication for Language Learners
   Passage 2 Convenience of Using Cell Phones for Language Learners
   Passage 3 The “Grapevine” Communication Medium
 Unit10
  Section I Main Ideas and Important Details
   Passage 1 A Survey on Students
   Passage 2 How We Tell “Good Guy” or “Bad Guy”?
   Passage 3 “Me Generation” in Japan
  Section II Listening-Based Integrated Exercises
   Passage 1 Color and Mood
   Passage 2 How Was Kenya Colonized?
   Passage 3 Are Americans Satisfied with Their Jobs?
  Section III Optional Listening Exercises
   Passage 1 History of Mother’s Day
   Passage 2 Possible Human Changes in the Future
   Passage 3 Public Relations
 Key to Exercises and Transcripts