Unit 1 Teachers Day

Unit 2 The sports meeting

Unit 3 A good teacher

Unit 4 What were they doing?

Unit 5 The accident

Unit 6 In the library

Unit 7 Mainly revision

Unit 8 On the farm

Unit 9 A visit to a factory

Unit 10 Mr Green s problem

Unit 11 A great inventor

Unit 12 Have a good time,Jim!

Unit 13 Merry Christmas!

Unit 14 Mainly revision

Unit 15 At home with the twins

Unit 16 What s it made of?

Unit 17 What was it used for?

Unit 18 Planting trees

Unit 19 Mainly revision

Unit 20 The world s population

Unit 21 Shopping

Unit 22 At the doctor s

Unit 23 The football match

Unit 24 Mainly revision

参考答案