Unit 1 1
Text A Vitamins for vision loss 1
Text A US universities say“no cheating” 1
Text B Is there a safe way to drink？ 5
Unit 2 10
Text B Exam cheats could get kicked out of college 14
Unit 3 18
Text A Children and dogs：important information for parents 18
Text B The world looks different now，even to the dog 22
Text A Give yourself choices 27
Unit 4 27
Text B Graduates face decisions 32
Unit 5 37
Text A A secret language 37
Text B Cosmetic surgery 41
Unit 6 45
Text A Success in life 45
Text B Mozart makes the brain hum 48
Unit 7 53
Text A From the heart 53
Text B All the good things 56
Text A Teens and sleep 62
Unit 8 62
Text B Simple tips to help you get to sleep 67
Unit 9 72
Text A The Ebola virus 72
Text B AIDS virus came from chimps 76
Unit 10 80
Text A A simple truth about happiness 80
Text B Who is happier 85
Unit 11 89
Text A The clever whitewasher 89
Text B Impatience and a guy in a wheelchair 94
Text A Mind does matter 99
Unit 12 99
Text B Be emotionally strong 103
Unit 13 108
Text A The importance of setting goals 108
Text B It is a new day 111
Unit 14 116
Text A Education in America 116
Text B Hackers，crackers and trackers 120
Unit 15 124
Text A College grads break contract 124
Text B Let me introduce my Laowai litany to you 128
Text A Scientists say seafood raises IQ 133
Unit 16 133
Text B Scientists grow drug-resistant bacteria in lab 137
Unit 17 141
Text A The day I got real 141
Text B How to use a napkin 145
Unit 18 149
Text A Spiders 149
Text B Cats 151
Unit 19 155
Text A Learn English through football 155
Text B How to enlarge vocabulary 159
Text A Tae kwon do 163
Unit 20 163
Text B Women’s basketball 167
Unit 21 171
Text A Does Santa really exist？ 171
Text B New Year’s celebration 175
Unit 22 179
Text A Early head start good for children 179
Text B Giving space to develop 183
Unit 23 187
Text A The temple of Borobudur 187
Text B The Buddha in Thai sculpture 190
Unit 24 195
Text A Sandstorm blows 30，000 tons of dust into Beijing 195
Text B The global warming 199
Unit 25 202
Text A Exercise and diet keep the body fit 202
Text B Dance to stay healthy 206
Unit 26 211
Text A Students learn to cheat 211
Text B Study：school-related food poisonings on rise 215
Text A Depression：dangerous and overlooked 220
Unit 27 220
Text B Music therapy reduces stress， pain while promoting healing 224
Unit 28 229
Text A Clone or not 229
Text B Whales related to cows，hippos？ 232
Unit 29 238
Text A Cyber-stepmother 238
Text B My forever Valentine 243
Unit 30 247
Text A Improve your reading and language skill 247
Text B Different approaches to teaching and learning 250
Key to the exercises(练习答案） 256