Unit 17 Could you help me,please？ 1
Lesson 65 1
Lesson 66 2
Lesson 67 3
Lesson 68 4
单元测试 4
Unit 18 Look after your things！ 7
Lesson 69 7
Lesson 70 7
Lesson 71 8
Lesson 72 9
单元测试 10
Unit 19 Food and drink 13
Lesson 73 13
Lesson 74 13
Lesson 75 14
Lesson 76 15
单元测试 15
Unit 20 Playing games 19
Lesson 77 19
Lesson 78 19
Lesson 79 20
Lesson 80 21
单元测试 21
Unit 21 How many boats are there？ 24
Lesson 81 24
Lesson 82 24
Lesson 83 25
Lesson 84 26
单元测试 26
Unit 22 What are you doing？ 29
Lesson 85 29
Lesson 86 29
Lesson 87 30
Lesson 88 31
单元测试 31
Unit 23 Mainly revision 34
Lesson 89 35
Lesson 90 35
Lesson 91 35
Lesson 92 35
单元测试 36
Unit 24 Let's go to school today！ 38
Lesson 93 38
Lesson 94 39
Lesson 95 40
Lesson 96 41
单元测试 42
Unit 25 Where are you from？ 44
Lesson 97 44
Lesson 98 45
Lesson 99 46
Lesson 100 47
单元测试 48
Unit 26 What do you like？ 50
Lesson 101 50
Lesson 102 51
Lesson 103 52
Lesson 104 53
单元测试 54
Unit 27 People and work 56
Lesson 105 56
Lesson 106 57
Lesson 107 58
Lesson 108 59
单元测试 60
Unit 28 What time do you get up？ 62
Lesson 109 62
Lesson 110 63
Lesson 111 64
Lesson 112 65
单元测试 66
Unit 29 Shopping 68
Lesson 113 68
Lesson 114 69
Lesson 115 70
Lesson 116 71
单元测试 72
Unit 30 Mainly revision 74
Lesson 117 74
Lesson 118 75
Lesson 119 76
Lesson 120 77
单元测试 78
期中测试 80
期末测试 83
参考答案 88