- Unit 1 The Changing World
- 1. Our country has developed rapidly.
- 2. The population in developing countries is growing faster.
- Review of Unit 1
- + 3. The world has changed for the better.
- Unit 2 Saving the Earth
- Unit 3 English Around the World
- Unit 4 Amazing Science
版本：
很抱歉，暂时没有该知识点下的试题，等待我们的收集吧o(╥﹏╥)o