学科
【帮课堂】2023-2024学年九年级英语上册同步学与练（仁爱版）
九年级 英语 普通专辑 42 份文档
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简介
目录
Unit 1 The Changing World
1. Our country has developed rapidly.
2. The population in developing countries is growing faster.
3. The world has changed for the better.
Unit 2 Saving the Earth
1. Pollution has caused too many problems.
2. All these problems are very serious.
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