Unit 1 1
Examinations 1
Is the Octopus a Human Killer? 2
Honeybee's Life in a Colony 3
How to Grow Old? 5
Are Moral Standards Declining? 6
The Meanings of Residential Mobility 8
The Finger of Suspicion 10
The Study of Liberal Arts 11
Who Are Susceptible to Colds? 13
The Varieties of American Newspapers 14
Unit 2 16
Are Camels Obedient Beasts of Burden? 16
Sunlight 17
The Power of Voice 18
Energy 20
Earthquake 21
How to Train Your Dogs? 23
A Woman Writer 25
Psychology and Consumer 26
Top Eaming Wives and Their Marriages 28
Crimes 29
Unit 3 31
Life in the Future 31
Health-Related Behaviors 32
The First Subway 34
Heroes 35
Neanderthals 37
High-Tech Communications 39
Organ Transplant 40
Reading 42
Population and Food 44
Sport 45
Unit 4 47
Pay Structure 47
Social Status 48
Social Factors and Music Prodigies 50
Standard English 51
Insurance 53
Earthquake Prediction 55
Clouds 56
Libraries 58
Caution with Concrete 60
Liquid and Gas 61
Unit 5 63
Libraries in Metropolitan Areas 63
Accidents and Human Behavior 64
A Refused Letter 66
Rock Music 67
Treatment of Bedtime Tantrums 69
Population 71
School Phobia 72
Individual,Group and Crowd 74
Gestures 75
Turkey—The Symbol of America? 77
Unit 6 79
The Effect of Noise Pollution 79
Objects in Space 80
Scientific Explanation 82
Courses in University 83
Memory 85
Braille 87
Can Clothes Reveal Ourselves? 88
How to Stay Young 90
Stradivari's Violins 92
Thinking and Feeling 93
Unit 7 95
Hunting and Sporting Activities 95
Tourism 96
The Prolonged Life 98
Greenpeace 100
A New Transformation of Hospitals 101
A Significant Economic Issue—Inflation 103
The Basic Economic Systems 104
What Attracts One to Another 106
A New Way to Keep Food Fresh 108
The Search for a Vaccine Against Malaria 109
Unit 8 111
The Effect of Air Pollution 111
Adaptation of Living Things 112
Many Divisions of Physics 114
Competition in America 116
Fallacies about Food 117
Appropriate Technology 119
Birds and Planes 121
How to Do Exercise 122
Intelligence and Environment 124
The Selection of English Teachers 126
Unit 9 128
Olympic Sponsors 128
How to Seek and Save Employees 130
Believe Evidence or Not 131
Mr.and Mrs.Lester 133
Water Pollution Problems 134
The Private Ownership of Hydrogen Bombs 136
Noise and Health 138
Virus Blockers 139
Gand PG Movies 141
Gallup Extreme Magic 142
Unit 10 145
Culture Differences 145
Parental Influence in Education 147
Teaching and Research 148
Stereotypes 150
Opportunities and Concentration 152
Stokoe and Sign Language 154
Language and Brain Development 155
Real Beauty 157
Elite Pool 159
Tips on Public Speaking 161
Unit 11 163
Proteins in a Balanced Diet 163
Teachers and Pupils'Attitudes 164
Women's Well-Being 166
Beauty 167
Violence in American Families 169
Glass 171
Media Impact 172
Adolescence 174
Preparations for Job Interviews 176
Animal Experiments 178
Unit 12 180
What Is Nourishing to Eat? 180
Sex Prejudice 181
New Life for the Handicapped 183
Three English Dictionaries 185
Patent 186
Credit Terms in Transactions 188
Survival in Desert 190
Eyes—Windows of the Soul 191
Poverty 193
Animal Agriculture 195
Unit 13 197
Bright or Not-So-Bright 197
Computer Crimes 198
Getting an Education 200
The Computer and the Law 202
Education—Global Enterprise 203
High-tech in Developing Countries 205
The Age of the Internet 207
Old Love,Old Tunes 208
Television 210
Mars Exploration 212
Unit 14 214
British Free Education Is at Risk 214
Culture Activities 216
On Intelligent People 217
Dialect and Language 219
New Life of Clinton 221
Jacqueline Kennedy 223
Bits 225
Arranged Marriages in India 227
The Golden Mean（PHI） 229
The Antler Riddle 230
Unit 15 233
Music-Culture 233
The Internet's New Application 235
Worrying Trend of Reading Ability 236
How to Make Better Use of Humor 238
Influence on Children's Personality 240
Useless Generosity 241
Challenging Medical Treatment 243
Access to the Internet 245
Culture Shock 247
An Analysis before Iraq War 248
Unit 16 251
New Eating Trend 251
Britain's Food Production 252
Accountability 254
The Theory of Losing Weight 256
Global Climate Will Keep Changing 258
The Oil Price Change Analysis 259
Experiment on Chimpanzees 261
The Solution to the Problems in INS 263
Growing Older 265
The Development of Information Carrier 266
Unit 17 269
Wood or Brick 269
Viruses 270
Vitamin C and Cancer 272
Laughter Works 273
Panic Attacks 275
Manners on the Road 277
Water in a Growing Plant 279
Lecture Method 280
Safeguard It 282
Types of Personality 284
Reference Keys 286