前言 1
Unit 1 Teachers Day 1
Unit 2 The sports meeting 11
Unit 3 A good teacher 24
Unit 4 What were they doing? 34
Unit 5 The accident 44
Unit 6 In the iibrary 54
Unit 7 Mainly revision 62
Unit 8 On the farm 71
Unit 9 A Visit to a factory 78
Unit 10 Mr Green s problem 88
Unit 11 A great inventor 100
Unit 12 Have a good time,Jim！ 112
Unit 13 MERRY CHRISTMAS！ 122
Unit 14 Mainly revision 132
Unit 15 At home with the twins 140
Unit 16 What s it made of? 153
Unit 17 What was it used for? 164
Unit 18 Planting trees 174
Unit 19 Mainly revision 190
Unit 20 The world s population 199
Unit 21 Shopping 211
Unit 22 At the doctor s 220
Unit 23 The football match 230
Unit 24 Mainly revision 240