内容説明
20のLessonと4つのReviewから構成。
目次
What Do Computers Do?
How Computers Work
Sun Power In Fossil Fuels
What Is Threatening Our Water?
Renewable Sources of Energy
How Old Is The Universe?
A Little Fat Goes A Long Way
Stay Healthy With Exercise
Drugs,Alcohol,and Tobacco:Cool Ways To Say“No”
All About…Dream And Dreaming〔ほか〕