Introduction 1
Passage 1 Is intelligence inborn and fixed？ 12
Passage 2 Why young people are critical of their parents？ 19
Passage 3 Adult children return to the nest 25
Passage 4 Why prices keep rising while there is more food supply？ 33
Passage 5 Sleep deficit：reasons and consequences 39
Passage 6 Conservation should be made a part of everyone's daily life 46
Passage 7 Would factory farming help poor countries？ 53
Passage 8 Why are appliances produced so awkward to use？ 60
Passage 9 No one should be forced to wear uniform 66
Passage 10 Do good looks matter？ 72
Passage 11 A minimum of subsistence gives people real freedom 78
Passage 12 If you want a musical prodigy,you'll have to crack the whip 85
Passage 13 Is college still working magic for everyone？ 92
Passage 14 Professors：to teach or to research？ 100
Passage 15 How schools are cutting busing costs 108
Passage 16 Why women are living longer than men？ 116
Passage 17 Mobility is splitting family relationship 123
Passage 18 Are immigrants good or bad for the economy？ 131
Passage 19 Science vs.humanities 139
Passage 20 How studying or working abroad makes you smarter 148
Passage 21 China's addiction to luxury goods 158
Passage 22 The secret cause of buyer's remorse 168
Passage 23 School field trips are in decline,and that's a loss for students 176
Passage 24 The dark side of goal setting 184
Passage 25 Eating your feelings？Your mom might be to blame 194
Passage 26 Can Facebook make you sad？ 202
Passage 27 Women wear too much makeup because they mistakenly think men like it 211
Passage 28 How“policy by panic”can backfire for environmentalists 220
Passage 29 Could work emails be banned after 6 pm？ 231
Passage 30 Bye bye,baby 242
Appendix：Answers 258