CONTENTS 1
Lesson One No Smoking 1
Lesson Two Physical Fitness 4
Lesson Three Life Span 8
Lesson Four Care Takers of Aging Parents 11
Lesson Five Our Brain 14
Lesson Six Memory 17
Lesson Seven The Human Impact on the Environment 20
Lesson Eight Our Polluted Planet 23
Lesson Nine Some Facts about Diet 26
Lesson Ten Earthquake 29
Lesson Eleven Black Students in American Colleges 32
Lesson Twelve Jimmy Taylor 35
Lesson Thirteen Violenee on TV 38
Lesson Fourteen Mothers Against Drunk Drivers 41
Lesson Fifteen Dr.Mark Adams Travelling by Air 44
Lesson Sixteen How Long a Person Will Sleep 47
Lesson Seventeen English——The International Language 50
Lesson Eighteen English——A World Language? 53
Model Listening Test(Ⅰ) 56
Model Listening Test(Ⅱ) 58