Unit 1

Part A Who Was the First Scientist?

Part B The Nature of Scientific Reasoning

Unit 2

Part A America’s Lacking Language Skills

Part B World Englishes，English as an International Language and Applied Linguistics

Unit 3

Part A Why Study Humanities？What I Tell Engineering Freshmen

Part B Why the Liberal Arts Need the Sciences（and Vice Versa）

Unit 4

Part A When Teaching Critical Thinking Backfires

Part B Young Minds in Critical Condition

Unit 5

Part A Can a“Triple Package”of Personality Traits Explain Success?

Part B Zuckerberg’s Letter to Daughter

Unit 6

Part A Driverless Cars Could Make Transportation Free for Everyone—with a Catch

Part B Self-driving Vehicles—The Threat to Consumers

Unit 7

Part A Advice from a Dinosaur?

Part B Job Interviews

Unit 8

Part A The Lesson of Economics

Part B The Belt and Road Initiative

Unit 9

Part A The Failure of Privatization

Part B Inequality Is Not the Problem

Unit 10

Part A Daoism

Part B The Idea of a Cultural Construct

Unit 11

Part A Solutions for Climate Change

Part B Ecology at the Start of the 21st Century

Unit 12

Part A The Perils of“Sharenting”

Part B Our Social Media Obsession：What Is Driving People to Constantly Check in with Social Media?

Unit 13

Part A The History of Common Core State Standards

Part B Section Ⅰ Who Is Fighting for Common Core?

Section Ⅱ Who Is Fighting Against Common Core?

Unit 14

Part A Artificial Intelligence

Part B A New Kind of Soft Battery,Inspired by the Electric Eel

Unit 15

Part A Affluenza：The Psychology of Wealth

Part B Please Help Us Tackle Urgent Problems of Homelessness and Destitution