第三册 1
Unit 1 Teachers'Day 1
Unit 2 The sports meeting 12
Unit 3 A good teacher 22
Unit 4 What were you doing? 32
Unit 5 The accident 44
Unit 6 In the library 57
Unit 7 Mainly revision 66
Unit 8 On the farm 75
Unit 9 A visit to a factory 85
Unit 10 Mr Green's problem 95
Unit 11 A great inventor 103
Unit 12 Have a good time,Jim! 112
Unit 13 Merry Christmas! 124
Unit 14 Mainly revision 134
Unit 15 At home with the twins 144
Unit 16 What's it made of? 154
Unit 17 What was it used for? 164
Unit 18 The world's population 171
Unit 19 Planting trees 181
Unit 20 Mainly revision 192
Unit 21 A red letter day 203
Unit 22 Shopping 213
Unit 23 At the doctor's 222
Unit 24 A letter from Australia 234
Unit 25 The football match 245
Unit 26 Mainly revision 256
综合练习（一） 267
综合练习（二） 282