Unit 1(A) Never Drink Too Much
(B) The Biggest Game on the Biggest Stage
Unit 2(A) Ice Melting
(B) Special Wedding
Unit 3(A) The Same Language?
(B) The Removal of Competing Foods
Unit 4(A) The Epilogue of Harry Potter
(B) Post-quake Reconstruction
Unit 5(A) The Forgotten Killer
(B) People of Sweden
Unit 6(A) Quill Pen
(B) Environmental Protection
Unit 7 (A) John Weinberg
(B) Energy Efficiency Measures
Unit 8(A) Dad, My Best Friend
(B) Global Filipina
Unit9 (A) Water Wars
(B) Gray Heads in the World Population
Unit 10 (A) Between Art and Reality
(B) Parent Burnout
Unit 11 (A) Health
(B) A Rotating Building
Unit12 (A) Smart Divorce
(B) Touch of the Panda
Unit 13 (A) Professor Hawking
(B) Super Earths
Unit14 (A) Poetry of Motion
(B) A Grand Prize
Unit 15 (A) Mona Lisa
(B) I Love You, Mum
Unit 16 (A) A Change in Midlife
(B) Writing Assessment
Unit 17 (A) The Homework Explosion
(B) Teaching English in China
Unit 18 (A) Can Dad Come Out to Play?
(B) Cellphone Calls in Flight
Unit 19 (A) NFSD
(B) A Special Celebration
Unit 20 (A) Can We Do This by 2020?
(B) Free E-mail Accounts
Unit 21 (A) Online Colleges
(B) Children's Plan
Unit 22 (A) Crucial Support
(B) The Contemptible Dependence on Others
Unit 23 (A) What Is Life?
(B) A Little Something
Unit 24 (A) Theatre in America
(B) KFC
Unit 25 (A) Mother Teresa
(B) Listen to Your Children
Unit 26 (A) It Is Worthwhile to Study
(B) David Beckham
Unit 27 (A) Happy or Unhappy?
(B) Colourful Handbag
Unit 28 (A) Sharing the Treasure
(B) Feel What Students Feel
Unit 29 (A) E-mail and Meet In-person
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Key