目录 1
Unit 1 In the library 1
Unit 2 Water sports 13
Unit 3 Make our world more beautiful 24
Unit 4 Travel 37
Unit 5 Have a good time！ 48
Unit 6 Mainly revision 62
上学期期中测试题 72
Unit 7 A man who never gave up 78
Unit 8 Merry Christmas！ 89
Unit 9 What is it made of？ 99
Unit 10 When was it built？ 111
Unit 11 Planting trees 121
Unit 12 Mainly revision 132
上学期期末测试题 142
参考答案 148