九年义务教育 初中英语 第3册 下PDF电子书下载

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Unit 15 At home with the twins 1

Unit 16 What's it made of? 14

Unit 17 What was it used for? 23

Unit 18 Planting trees 32

Unit 19 Mainly revision 40

Unit 20 The world's population 48

Unit 21 Shopping 57

Unit 22 At the doctor's 67

Unit 23 The football match 77

Unit 24 Mainly revision 86

期中检测题 92

期末检测题 103

附：练习参考答案 113

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