Pretest
Unit 1
Chapter 1 Major Processes of word Formation in English
Chapter 2 Affixes I：Prefixes
Chapter 3 Affixes II：Suffixes
Chapter 4 Roots
Unit Test 1
Unit 2
Chapter 1 Along the River During the Qingming Festival
Chapter 2 Parents Can Use a Digital Tool at Home to Detect Fluid Behind the Eardrum
Chapter 3 You Might Be Genetically Predisposed to Procrastination
Chapter 4 My Misconceptions of College
Unit Test 2
Unit 3
Chapter 1 Super Bowl Sunday
Chapter 2 New Technology Reads Ancient Documents Without Opening them
Chapter 3 Tai chi Helps Arthritis Pain and Stiffness
Chapter 4 My Journey to Wellesley College
Unit Test 3
Unit 4
Chapter 1 Youyou Tu
Chapter 2 4 Days of Intensive Therapy Can Reverse OCD for Years
Chapter 3 Everyone Has a Daily Energy Cycle
Chapter 4 Hold the Door
Unit Test 4
Unit 5
Chapter 1 Tragedy Performances in Ancient Greece and Rome
Chapter 2 Gene—edited Chickens to Stop Spread of Flu Virus
Chapter 3 A Solution for kqneliness：Get out and Volunteer
Chapter 4 The Art of Living
Unit Test 5
Unit 6
Chapter 1 Yuan Longping?
Chapter 2 Overuse of Antibiotics Is Risky
Chapter 3 Can Self—compassion Improve Well—being in Teens?
Chapter 4 Don’t Cry over Spilt Milk
Unit Test 6
Unit 7
Chapter l The Features of Chinese Food
Chapter 2 New Approach to Obesity
Chapter 3 Does Thirst Start in the Mouth or the Gut
Chapter 4 Industry Significance
Unit Test 7
Unit 8
Chapter 1 MR.M.Pei
Chapter 2 German Scientists Create See-through Human Organs with a 3 D Printer
Chapter 3 Are Nutritional Supplements a Waste of Money?
Chapter 4 Great Universities Stand for Truth ?
Unit Test 8
Posttest
Answers to the Tests
Pretest
Unit 1
Unit 2
Unit 3
Unit 4
Unit 5
Unit 6
Unit 7
Unit 8
Posttest
Appendixes
A.References
B.Glossary
