Unit 1 Getting along with others 1
Period 1 Welcome to the unit 1
Period 2 Reading(1) 3
Period 3 Reading(2) 5
Period 4 Word power 7
Period 5 Grammar and usage(1) 9
Period 6 Grammar and usage(2) 11
Period 7 Task(1) 13
Period 8 Task(2) 15
Period 9 Task(3) 17
Period 10 Project 19
单元测试 21
Unit 2 The environment 27
Period 1 Welcome to the unit 27
Period 2 Reading(1) 29
Period 3 Reading(2) 31
Period 4 Word power 33
Period 5 Grammar and usage(1) 35
Period 6 Grammar and usage(2) 37
Period 7 Task(1) 39
Period 8 Task(2) 41
Period 9 Project(1) 43
Period 10 Project(2) 45
单元测试 47
Unit 3 Science versus nature 53
Period 1 Welcome to the unit 53
Period 2 Reading(1) 55
Period 3 Reading(2) 57
Period 4 Word power 59
Period 5 Grammar and usage(1) 61
Period 6 Grammar and usage(2) 63
Period 7 Task(1) 65
Period 8 Task(2) 67
Period 9 Project(1) 69
Period 10 Project(2) 71
单元测试 73
Self-test (Units 1—3) 79
参考答案与听力材料 91