Unit 1 Space ExplorationText A-1 Early Astronaut Selection and TrainingText A-2 Why Do We Explore Space? Text B-1 Former Astronauts Say Space Exploration Must Continue Text B-2 NASA Pays Close Attention to Columbia “Heat Tiles”. Text C Shenzhou-7 Spacecraft Blasts Off Topic-related words and expressions Unit 2 Education Text A-1 School Systems in Hong Kong Text A-2 More Hope to Study at University Text B-1 New Students——New Learning Styles Text B-2 College May Become Unaffordable for Most in the U. SText C Graduate Study in FranceTopic-related words and expressions Unit 3 Cultural Differences Text A-1 Table Manners: A Cultural Difference Text A-2 Cultural Differences Text B-1 Lack of Mutual Cultural Understanding Text B-2 Cultural Differences——Past & Future Text C What's in a Number? Topic-related words and expressions Unit 4 Natural Resources Text A-1 Alternative Energy Text A-2 Arctic's Oil Could Meet World Demand for 3 Years Text B-1 Wind Power Text B-2 Bottled Water, a Natural Resource Taxing the World's Ecosystem Text C Borneo's RainforestTopic-related words and expressions Unit 5 Personality Text A-1 Standing Tall Text A-2 Borderline Personality Disorder Text B-1 Learning to Love Text B-2 ”Yes, I Can”. Text C Are You Normal or Nuts Topic-related words and expressions Unit 6 Travelling Text A-1 To Haiti with My Son, Text A-2 Time-Travelling in0xford Text B-1 Tips for Travelling with Kids Text B-2 Improvement in Travelling Text C Travel Trends in Asia Topic-related words and expressions Unit 7 Language Text A-1 Language Learning Text A-2 Presentations in English Text B-1 On Language: The Value of Error Text B-2 The Importance of Speaking Practice Text C Improve Your English Through Reading Topic-related words and expressions Unit 8 Love Text A-1 Enjoying Valentine's Day While Single Text A-2 A Silent Love Text B-1 Will a Liar Ever Change? Text B-2 Let Me Love You Text C Father's Eyes Topic-related words and expressionsKeys