Unit 1 Teachers Day 1
Unit 2 The sports meeting 18
Unit 3 A good teacher 35
Unit 4 What were they doing? 50
Unit 5 The accident 62
Unit 6 In the library 74
Unit 7 Mainly revision 87
Unit 8 On the farm 98
Unit 9 A visit to a factory 111
Unit 10 Mr Green s problem 124
Unit 11 A great inventor 134
Unit 12 Have a good time,Jim! 145
Unit 13 Merry Christmas! 157
Unit 14 Mainly revision 167
Unit 15 At home with the twins 175
Unit 16 What s it made of? 184
Unit 17 What was it used for? 195
Unit 18 Planting trees 206
Unit 19 Mainly revision 220
Unit 20 The world s population 232
Unit 21 Shopping 242
Unit 22 At the doctor s 254
Unit 23 The football match 271
Unit 24 Mainly revision 286
参考答案 298