Unit One Growing Pains

    Passage 1 The Fish I Didn’t Catch

    PaSsage 2 The Song of Birds

    Passage 3 The Wonderful Eye

Unit Two Study Actively and Effectively

    Passage 1 How to Study

    Passage 2 Seeing by Touching

    Passage 3 Learn to Do Some Exercises

Unit Three Let’s Go Swimming

    Passage 1 Swimming

    Passage 2 The Girl Who Swam the Channel  

    Passage 3 Sports Physicals

Unit Four Looking Nice and Proper

    Passage 1 Why Do We Wear Clothes?

    Passage 2 What Clothes Should We Wear?

    Passage 3 A Few Essential Health Tips。

Unit Five  Culture and Customs

    Passage 1 American Customs

    Passage 2.American Culture  

    Passage 3 When It’s Just You in an Emergency

Unit Six  Clever and Lovable Animals  

    Passage 1 Do Animals Have Intelligence?  

    Passage 2 Kenny the Koala

    Passage 3 About Dreams

Unit Seven Mind Your Hands and Feet

    Passage 1 Start Off on the Right Foot

    Passage 2 Avoiding Germs

    Passage 3 Laughter Is the Cure

Unit Eight Insect and Worm

    Passage 1 Earth’S Wiggly Wonder

    Passage 2 The Female Mosquito

    Passage 3 How Much Rest Is Enough?  

Unit Nine Teen Life

    Passage 1 Being Overweight and Living With It!

    Passage 2 Sweet Olsen Twins  

    Passage 3 WhY Does Hair Turn Gray?  

Unit Ten Trips and Journeys

    Passage 1 My Holidays to Sydney

    Passage 2 A Trip to Toronto

    Passage 3 Energy CycleJ

Unit Eleven Social Communication

    Passage l British People and American People

    Passage 2 Don’t Waste Precious Time

    Passage 3 Your Body Knows Best  

Unit Twelve Famous People

    Passage 1 Florence Nightingale(1)

    Passage 2 Florence Nightingale(2)

    Passage 3 Become a Habitual Tea Drinker

Unit Thirteen Machines That Make Life Comfortable

    Passage 1 Air Conditioning

    Passage 2 The Cars of the Future

    Passage 3 Health Tip.Playground Safety

Unit Fourteen Historical Events

    Passage 1 A Race to the Pole

    Passage 2 Christopher Columbus

    Passage 3 Sleep Disorder

Unit Fifteen Human and Nature

    Passage 1 The Salt of the Earth

    Passage 2 Human and Environment

    Passage 3 What Is Depression?

Appendix Key to Exercises