Lesson One
A Good Way to Make Friends
Lesson Two
Valentine’S Day
Lesson Three
High Platform Shoes
Lesson Four
The Easy Way to Learn English
Lesson Five
Population Movement
Lesson Six
Reading the Right Books
Lesson Seven
Technical Advances and Social Problems
Lesson Eight
Let Children Learn by Themselves
Lesson Nine’
Working Body
Lesson Ten
Population Control
Lesson Eleven
Smoking and Health
Lesson Twelve
The 5R Policy
Lesson Thirteen
Cherish Your Life
Lesson Fourteen
Women’S Roles
Lesson Fifleen
Chatrooms
Lesson Sixteen
Advertisements
Lesson Seventeen
The First Internet Worm--Morris W0rrn
Lesson Eighteen
Zheng He and Columbus
Lesson Nineteen
How Light Travels
Lesson Twenty
Alexander Bell’S Greatest Invention
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