Unit 1 In the library 1
Lesson 1 1
Lesson 2 2
Lesson 3 3
Lesson 4 4
单元达标检测 6
Unit 2 Water sports 11
Lesson 5 11
Lesson 6 12
Lesson 7 13
Lesson 8 14
单元达标检测 17
Unit 3 Make our world more beautiful! 21
Lesson 9 21
Lesson 10 23
Lesson 11 24
Lesson 12 25
单元达标检测 27
Unit 4 Travel 32
Lesson 13 32
Lesson 14 33
Lesson 15 34
Lesson 16 35
单元达标检测 38
Unit 5 Have a good time! 42
Lesson 17 42
Lesson 18 44
Lesson 19 45
Lesson 20 47
单元达标检测 50
Unit 6 Mainly revision 54
Lesson 21 54
Lesson 22 55
Lesson 23 57
Lesson 24 59
单元达标检测 62
第一学期期中测验题 67
Unit 7 A man who never gave up 72
Lesson 25 72
Lesson 26 73
Lesson 27 76
Lesson 28 78
单元达标检测 80
Unit 8 Merry Christmas! 85
Lesson 29 85
Lesson 30 86
Lesson 31 88
Lesson 32 90
单元达标检测 93
Unit 9 What is it made of? 97
Lesson 33 97
Lesson 34 98
Lesson 35 100
Lesson 36 102
单元达标检测 104
Unit 10 When was it built? 108
Lesson 37 108
Lesson 38 110
Lesson 39 112
Lesson 40 114
单元达标检测 117
Unit 11 Planting trees 123
Lesson 41 123
Lesson 42 124
Lesson 43 126
Lesson 44 128
单元达标检测 132
Unit 12 Maily revision 137
Lesson 45 137
Lesson 46 139
Lesson 47 141
Lesson 48 143
单元达标检测 146
第一学期期末测验题 150
详解答案 155