Unit 1 Scientific Discovery
Text A Evolution and Natural Selection
Text B Darwin's Observations and the Social Implications of Darwinism
Unit 2 Science and Life
Text A Cancer Chemicals
Text B Why Do My Allergies Change as I Age?
Unit 3 A Better Life on Earth
Text A The End Is Not at Hand
Text B China a Major Promoter of Global Poverty Reduction
Unit 4 Scientists and Science Community
Text A The Man Who Discovered Mother Nature
Text B Building a Shared Future for All Life on Earth:China in Action
Unit 5 Society and Psychology
Text A Laws of Lasting Love
Text B You Are What You Think
Unit 6 Types of People
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