Lesson 1　The MOON

Lesson 2　CHINESE NEW YEAR IN HONG KONG

Lesson 3　POLLUTION IS SPOLING THE AIR WE BREATHE

Lesson 4　MAN AND THE WEATHER

Lesson 5　TRIP THROUGH TIME

Lesson 6　THE CASH-FREE SOCIETY

Lesson 7　HELEN KELLER(一)

Lesson 8　AMERICAN ENGLISH AND BRITISH ENGLISH

Lesson 9　HOMELESS PEOPLE IN THE USA

Lesson 10 AIR PLANES

课程复习（一）

课程复习（二）