Unit 1
SectionA Passage 1 Healthy Eating
Passage 2 Obtaining Fresh Water from Icebergs
SectionB Passage 1 You Are What You Eat
Passage 2 Food in the 21st Century

Unit 2
SectionA Passage 1 A Cup of Coffee with Salt
Passage 2 Night Watch
SectionB Passage 1 The Beginning of Drama
Passage 2 A Funny Thing Happened to Me

Unit 3
SectionA Passage 1 Megatrends in Education
Passage 2 Standardized Tests
SectionB Passage 1 Different Approaches to Teaching and Learning
Passage 2 Is College Education Overvalued?

Unit 4
SectionA Passage 1 The Decline of Dating Apps
Passage 2 Clothing for Communication
Passage 1 Make Your Resume Shine
Passage 2 The Key to a Problem-Free Life

Unit 5
SectionA Passage 1 Tornadoes
Passage 2 Conservation
SectionB Passage 1 The Balance of Nature
Passage 2 Icebergs

Unit 6
SectionA Passage 1 Agriculture and the Development of Civilization
Passage 2 Telecommuting
Passage 1 Time and Human Society
Passage 2 New Methods of Payment

Unit 7
SectionA Passage 1 Statistics
Passage 2 Botany
SectionB Passage 1 Why Machine Translation Cannot Replace Human Translation
Passage 2 Cohesion-tension Theory

Unit 8
SectionA Passage 1 Essay on Positive and Negative Impacts of Cashless Economy
Passage 2 Fall Guy
Passage 1 Current Attitudes toward Physical Fitness
Passage 2 Exploding the Myths about the American Family

Unit 9
SectionA Passage 1 Getting the Most from Online Shopping
Passage 2 What Is Money and What Are Its Functions?
SectionB Passage 1 Serial Returners
Passage 2 Going Back�� Wise Choice for Some

Unit 10
SectionA Passage 1 Multinationals Readjustment for Investment in China
Passage 2 Coal-fired Power Plants
SectionB Passage 1 Telecommunication via Satellite
Passage 2 The Salinity of Ocean Waters
Keys