英语同步练习册 九年级 上PDF格式文档图书下载

Unit 1 The Developing World 1

Topic 1 Our country has developed rapidly 1

Topic 2 What a large population! 8

Topic 3 The world has changed for the better 15

Unit 2 Loving Our Planet 22

Topic 1 Pollution causes too many problems 22

Topic 2 All these problems are very serious 29

Topic 3 Would you like to be a greener person? 35

Review of Units 1-2 41

Unit 3 English Around the World 45

Topic 1 English is widely used throughout the world 45

Topic 2 English is spoken differently in different countries 52

Topic 3 Could you give us some advice on how to learn English well? 59

Unit 4 Amazing Science 66

Topic 1 Spaceships are mainly controlled by computers 66

Topic 2 When was it developed? 73

Topic 3 We will live in space one day 80

Review of Units 3-4 87

参考答案 92

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