1．An Unwise Refusal

2．Discovery

3．Academy Awards-The Oscars

4．The Potato-A Power Pack

5．Life or Death

6．Is Global Warming Harmful to Health?

7．A Precious Moment

8．Da Vinci-Scientist， Inventor， Artist

9．The Renaissance

10．What Is Fashion?

11．An Online Library

12．Distance Learning

13．Can You Feel the Music?

14．How to Panic More Efficiently at Crunch Time

15．The Return of Spring

16．The Nobel Peace Prize

17．Rap

18．Jack's Gift

19．Media Literacy

20．How an Ad Works

ANSWER KEYS