本套MP3资源为教育部审定2013仁爱科普版初中英语义务教育教科书九年级上册配套各单元课文 句子 单词朗读录音全册MP3文件，音质清晰
Unit 1 The changing world.
Topic 1. Our country has developed rapidly.
Topic 2. The population in developing countries is growing faster.
Topic 3. The world has changed for the better.
Unit 2 Saving the earth.
Topic 1. Pollution has caused too many problems.
Topic 2. All these problems are very serious.
Topic 3. What can we do at home to protect the environment?
Unit 3 English around the world
Topic 1. English is widely spoken throughout the world.
Topic 2. Some things usually have different meanings in different cultures.
Topic 3. Could you give us some advice on how to learn English well?
Unit 4 Amazing Science
Topic 1. When was it invented?
Topic 2. I'm excited about the things that will be discovered in the future.
Topic 3. China is the third nation that sent a person into space.