出版說明
本書使用說明
Unit 1 Explorers
Lesson 1 Burke and Wills： Across Australia
Lesson 2 Alexandra David-Neel： A French Woman in Tibet
Lesson 3 Vitus Bering： Across Siberia to North America
Lesson 4 Robert Scott： A Race to the South Pole
Lesson 5 Into the Deep： Ocean Exploration
Extension Activities
Video Highlights： CNN Video， Deep Sea Exploration
Activity Page： Adventure Trail
Dictionary Page： Understanding Definitions
Unit 2 World Issues
Lesson 1 World Population Growth
Lesson 2 Changes in the Family
Lesson 3 Women and Change
Lesson 4 Rain Forests
．Lesson 5 The Garbage Project
Extension Activities
Video Highlights： CNN Video， Lalita's Story
Activity Page： Crossword Puzzle
Dictionary Page： Working with Word Forms
Unit 3 A Mishmash， or Hodgepodge
Lesson 1 Roadrunners
Lesson 2 Afraid to Fly
Lesson 3 Languages and Language Diversity
Lesson 4 Skyscrapers
Lesson 5 Left-Handedness
Extension Activities
Video Highlights： CNN Video， The Green Skyscraper
Activity Page： Familiar Phrases
Dictionary Page： Understanding Grammar Codes
Unit 4 Science
Lesson 1 Biospheres in Space
Lesson 2 Earthquakes
Lesson 3 Snow and Hail
Lesson 4 Photovoltaic Cells： Energy Source of the Future
Lesson 5 Biological Clocks
Extension Activities
Video Highlights： CNN Video， Ozone Depletion
Activity Page： Chemical Crossword Puzzle
Dictionary Page： Doing Dictionary Research
Unit 5 Medicine and Health
Lesson 1 Headaches
Lesson 2 Sleep and Dreams
Lesson 3 Health Care and Epidemics
Lesson 4 Medicine： From Leeches to Lasers
Lesson 5 Cholesterol and Heart Disease
Extension Activities
Video Highlights： CNN Video， The Singing Doctor
Activity Page： Who Said What?
Dictionary Page： Learning About Word Stress
Unit Quiz
Vocabulary
Skills Index
Video Transcripts
