UNIT 1 A kind of sermon
UNIT 2 The fifth freedon
UNIT 3 Your key to a better life
UNIT 4 Super Kids and Super Problems
UNIT 5 Science and the scientific attitude
UNIT 6 Love story
UNIT 7 Roaning the cosmos
UNIT 8 I have a dream
APPEndix 1 Key to exercises(UNIT 1-unit10)
APPEndix 2 Chinese Translations of the Tects (Unit 1- unit 8)
APPEndix 3 Chinese Translations of the Reading Passages(Unit 1- unit 8)
