Unit1 Endangered Biodiversity and Health Risks

Section Ⅰ Intensive Listening

Human Health Depends on Biodiversity

Biodiversity Action Days

Section Ⅱ Extensive Listening

Tropical Biodiversity Can Thank Steady Temps

Why We Need Nature

Section Ⅲ Topics for Discussion and Report

Section Ⅳ Key to Exercises

Section Ⅴ Script for Audio and Video Clips

Unit2 Climatic Change and Health Risks

Section Ⅰ Intensive Listening

What Does Climate Change Have to Do with Human Health

Ozone Smog Pollution Expanding

Section Ⅱ Extensive Listening

Climate Change Ups Infectious Disease Risks

Study Shows Air Pollution Poses Greater Link to Heart Attack,Stroke

Section Ⅲ Topics for Discussion and Report

Section Ⅳ Key to Exercises

Section Ⅴ Script for Audio and Video Clips

Unit3 Urbanization and Health Risks to City dwellers

Section Ⅰ Intensive Listening

Urbanization Puts Public Health at Growing Risk

City Living Can Be Bad for Your Health

Section Ⅱ Extensive Listening

How Urban Policies Can Make City Living Healthier and Safer

Perspective on Health and Globalization

Section Ⅲ Topics for Discussion and Report

Section Ⅳ Key to Exercises

Section Ⅴ Script for Audio and Video Clips

Unit4 Noise Pollution and Health Risks

Section Ⅰ Intensive Listening

I Hear

Scientists Point to Possible Health Effects of Cell Phones

Section Ⅱ Extensive Listening

Traffic Noise Ups Elderly's Stroke Risk

Restaurant Noise Can Alter Food Taste

Section Ⅲ Topics for Discussion and Report

Section Ⅳ Key to Exercises

Section Ⅴ Script for Audio and Video Clips

Unit5 Water Scarcity and Sanitation Issue

Section Ⅰ Intensive Listening

How Neverending Quest for Water Has Defined Human History

Experts,Industry Leaders,Decision Makers Meet to Discuss World’s Water Problems

Section Ⅱ Extensive Listening

Impact of Safe Water on Global Health

How Much Water Do You Use

Section Ⅲ Topics for Discussion and Report

Section Ⅳ Key to Exercises

Section Ⅴ Script for Audio and Video Clips

Unit6 Combatting New Outbreaks of Infectious Diseases

Section Ⅰ Intensive Listening

Disease Outbreaks Reported Sooner

Virus Hunters Try to Unravel Flu Virus Mystery

Section Ⅱ Extensive Listening

Public Health:Try the Prevent Defense

Sneezes Provoke Fears beyond Illness

Section Ⅲ Topics for Discussion and Report

Section Ⅳ Key to Exercises

Section Ⅴ Script for Audio and Video Clips

Unit7 The Impo rtance of RegularHygienic Practices

Section Ⅰ Intensive Listening

Clean Hands Can Prevent the Spread of Disease

Putting Your Hands Together

Section Ⅱ Extensive Listening

Hand Hygiene Saves Lives

Health Begins at Home

Section Ⅲ Topics for Discussion and Report

Section Ⅳ Key to Exercises

Section Ⅴ Script for Audio and Video Clips

Unit8 The New DietaryGuidelines

Section Ⅰ I ntensive Listening

Diet and Human Action

U.S.Issues New Dietary Guidelines

Section Ⅱ Extensive Listening

U.S.School Tries to Build Healthier Food Culture,Part1

U.S.School Tries to Build Healthier Food Culture,Part2

Section Ⅲ Topics for Discussion and Report

Section Ⅳ Key to Exercises

Section Ⅴ Script for Audio and Video Clips

Unit9 The Longevity Diet

Section Ⅰ Intensive Listening

What Do the World’s Healthiest People Eat

Red Wine:A Fountain of Youth

Section Ⅱ Extensive Listening

Important Benefits of Healthy Eating,Part1

Important Benefits of Healthy Eating,Part2

Section Ⅲ Topics for Discussion and Report

Section Ⅳ Key to Exercises

Section Ⅴ Script for Audio and Video Clips

Unit10 Caution over Food Safety

Section Ⅰ Intensive Listening

Overhaul of Food Safety Laws in the U.S.

U.S.Passes Sweeping Food Safety Law

Section Ⅱ Extensive Listening

U.S.Moves to Improve Food Safety,Part 1

U.S.Moves to Improve Food Safety,Part 2

What You Didn’t Know about Cleaning

Section Ⅲ Topics for Discussion and Report

Section Ⅳ Key to Exercises

Section Ⅴ Script for Audio and Video Clips

Unit11 Health ConsequenceS of Lifestyle Factors

Section Ⅰ Intensive Listening

Study Says Preventable Diseases Reduce U.S.Life Expectancy

Lifestyle Choices Impact Health in China

Section Ⅱ Extensive Listening

Chronic,Noncommunicable Disease Is Leading Killer,Part1

Chronic,Noncommunicable Disease Is Leading Killer,Part2

Time Watching TV Ups Diabetes and Heart Risks

Section Ⅲ Topics for Discussion and Report

Section Ⅳ Key to Exercises

Section Ⅴ Script for Audio and Video Clips

Unit12 Health Benefits of Regular Physical Activity

Section Ⅰ Intensive Listening

Physical Activity:A Key in Preventing Some Cancers

Frequent Aerobic Exercisers Get Fewer Colds

Section Ⅱ Extensive Listening

A Little Exercise Can Do A Lot

Encourage Walking with Urban Planning

Section Ⅲ Topics for Discussion and Report

Section Ⅳ Key to Exercises

Section Ⅴ Script for Audio and Video Clips

Unit13 The Science of Mental Well-being

Section Ⅰ Intensive Listening

Suicide,the Leading Cause of Death Worldwide

France Wants Happiness Included in Progress Measures

Section Ⅱ Extensive Listening

Perception of Our Physical State when Depressed or Anxious

How Happiness Impacts Health

Section Ⅲ Topics for Discussion and Report

Section Ⅳ Key to Exercises

Section Ⅴ Script for Audio and Video Clips

Unit14 Benefits of Socializing

Section Ⅰ Intensive Listening

Family,Friends Help You Live Longer

Diverse Personal Networks Linked to Strong Local Economy

Section Ⅱ Extensive Listening

The Importance of Social Connectedness

Family Gatherings Are Opportunities for Medical Detective Work

Section Ⅲ Topics for Discussion and Report

Section Ⅳ Key to Exercises

Section Ⅴ Script for Audio and Video Clips

Unit15 Living Longer and Healthier

Section Ⅰ Intensive Listening

Long Life in the 21st Century

Inside to a Longer Life

Section Ⅱ Extensive Listening

The Longevity Factor

Secrets of a Long and Healthy Life

Section Ⅲ Topics for Discussion and Report

Section Ⅳ Key to Exercises

Section Ⅴ Script for Audio and Video Clips