UNIT 1 What's the matter? Section A Section B 单元总结复习 UNIT 2 I'll help to clean up the city parks. Section A Section B 单元总结复习 UNIT 3 Could you please clean your room? Section A Section B 单元总结复习 UNIT 4 Why don't you talk to your parents? Section A Section B 单元总结复习 UNIT 5 What were you doing when the rainstorm came? Section A Section B 单元总结复习 UNIT 6 An old man tried to move the mountains. Section A Section B 单元总结复习. UNIT 7 What's the highest mountain in the world? Section A Section B 单元总结复习 UNIT 8 Have you read Treasure Island yet? Section A Section B 单元总结复习 UNIT 9 Have you ever been to a museum? Section A Section B 单元总结复习 UNIT 10 I've had this bike for three years. Section A Section B 单元总结复习