选集

• Unit 1 Festivals around the world1
• Unit 1 Festivals around the world2
• Unit 1 Festivals around the world3
• Unit 2 Healthy eating1
• Unit 2 Healthy eating 2
• Unit 2 Healthy eating 3
• Unit 3 The Million Pound Bank-Note 1
• Unit 3 The Million Pound Bank-Note2
• Unit 3 The Million Pound Bank-Note3
• Unit 4 Astronomy: the science of the stars 1
• Unit 4 Astronomy: the science of the stars2
• Unit 4 Astronomy: the science of the stars3
• Unit 5 Canada¡ª¡°The True North¡±1
• Unit 5 Canada¡ª¡°The True North¡±2
• Unit 5 Canada¡ª¡°The True North¡±3