Table of Contents
Chapter 1 Social Studies · History and Geography
Unit 01 7
History and Culture
Clues from the Past
Unit 02 11
The American Government
Three Important American Documents
Unit 03 15
The Election System of the United States
The American Presidential Election System
Unit 04 19
The American Civil War
The Civil War
Unit 05 23
Post-Civil War
Reconstruction
Unit 06 27
The Nation Grows
Industrialization and Urbanization
Unit 07 31
War and Revolution
The Age of Imperialism
Unit 08 35
World War II
World War II
Wrap-Up Test 1 39
Chapter 2 Science
Unit 09 43
Living Things and Their Environments
Interactions among Living Things
Unit 10 47
How Do Ecosystems Change?
Biomes and Ecological Succession
Unit 11 51
Earth’s Surface
Earth’s Changing Crust
Unit 12 55
Earth’s Atmosphere
What Makes Up the Atmosphere?
Unit 13 59
The Properties and Structure of Matter
Atoms, Elements, and Compounds
Unit 14 63
Matter and How It Changes
Mixtures and Solutions
Unit 15 67
The Human Body
The Stages of Growth in the Human Body
Wrap-Up Test 2 71
Chapter 3 Mathematics · Language·Visual Arts · Music
Unit 16 75
Computation
The Order of Operations and Inverse Operations
Unit 17 79
Probability and Statistics
Ratios, Percents, and Probabilities
Unit 18 83
Stories, Myths, and Legends
Echo and Narcissus
Unit 19 87
Learning about Language
Common Mistakes in English
Unit 20 91
The Renaissance
The Rebirth of the Arts
Unit 21 95
Musical Instructions
Italian for Composers
Wrap-Up Test 3 99
· School Textbook 101
· Answers and Translations 145
· Word List 162
摘要
The Best Preparation for Building Academic Reading Skills and VocabularyAmerican School Textbook Reading KeyThe Reading Key series is designed to help students to understand American school textbooks and to develop background knowledge in a wide variety of academic topics. This series also provides learners with the opportunity to enhance their reading comprehension skills and vocabulary, which will assist them when they take various English exams.Features？ A wide variety of topics that cover American school subjects helps learners expand their knowledge of academic topics through interdisciplinary studies？ Intensive practice for reading skill development helps learners prepare for various English exams？ Building vocabulary by school subjects and themed texts helps learners expand their vocabulary and reading skills in each subject？ Graphic organizers for each passage show the structure of the passage and help to build summary skills？ Captivating pictures and illustrations related to the topics help learners gain a broader understanding of the topics and key concepts
