同课章节目录
- Unit 1 The Changing World
- Topic 1 Our country has developed rapidly.
- Topic 2 The population in developing countries is
- Topic 3 The world has changed for the better.
- Unit 2 Saving the earth.
- Topic 1 Pollution has causes too many problems.
- Topic 2 All these problems are very serious.
- Topic 3 What can we do to protect the environment
- Unit 3 English around the World
- Topic 1 English is widely spoken around the world.
- Topic 2 Some things usually have different meaning
- Topic 3 Could you give us some advice on how to l
- Unit 4 Amazing Science
- Topic 1 When was it invented?
- Topic 2 I'm excited about the things that will be
- Topic 3 China is the third nation that sent a pers