Unit 1 In Ihe library 1
Lesson 1 1
Lesson 2 3
Lesson 3 5
Lesson 4 7
Unit 2 Water sports 9
Lesson 5 9
Lesson 6 11
Lesson 7 13
Lesson 8 15
Unit 3 Make our world more beautiful! 17
Lesson 9 17
Lesson 10 19
Lesson 11 21
Lesson 12 23
Unit 4 Travel 25
Lesson 13 25
Lesson 14 27
Lesson 15 29
Lesson 16 31
Unit 5 Have a good time! 33
Lesson 17 33
Lesson 18 35
Lesson 19 37
Lesson 20 39
Unit 6 Mainly revision 41
Lesson 21 41
Lesson 22 43
Lesson 23 45
Lesson 24 47
Unit 7 A man who never gave up 49
Lesson 25 49
Lesson 26 51
Lesson 27 53
Lesson 28 55
Unit 8 Merry Christmas! 57
Lesson 29 57
Lesson 30 59
Lesson 31 61
Lesson 32 63
Unit 9 What is it made of? 65
Lesson 33 65
Lesson 34 67
Lesson 35 69
Lesson 36 71
Unit 10 When was it built? 73
Lesson 37 73
Lesson 38 75
Lesson 39 77
Lesson 40 79
Unit 11 PIanting trees 81
Lesson 41 81
Lesson 42 83
Lesson 43 85
Lesson 44 87
Unit 12 Mainly revision 89
Lesson 45 89
Lesson 46 91
Lesson 47 93
Lesson 48 95
期中测试 97
期末测试 101
参考答案 105