Unit 1 The Changing World

Unit 1  The Changing World

Topic 1 Our country has developed rapidly.

Section A                                     Section B

Section C                                    Section D

Topic 2 The population in developing countries is growing faster.

Section A                                     Section B

Section C                                     Section D

Topic 3 The world has changed for the better.

Section A                                     Section B

Section C                                     Section D

Unit 2 Saving the Earth

Unit 2 Saving the Earth

Topic 1 Pollution has caused too many problems.

Section A                                     Section B

Section C                                     Section D

Topic 2 All these problems are very serious.

Section A                                     Section B

Section C                                    Section D

Topic 3 What can we do at home to protect the environment?

Section A                                     Section B

Section C                                    Section D

Unit 3 English Around the World

Unit 3 English Around the World

Topic 1 English is widely spoken throughout the world.

Section A                                     Section B

Section C                                    Section D

Topic 2 Some things usually have different meanings in different cultures.

Section A                                     Section B

Section C                                    Section D

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

Section A                                     Section B

Section C                                    Section D

Unit 4 Amazing Science

Unit 4 Amazing Science

Topic 1 When was it invented?

Section A                                     Section B

Section C                                    Section D

Topic 2 I’m excited about the things that will be discovered in the future.

Section A                                     Section B

Section C                                    Section D

Topic 3 China is the third nation that sent a person into space.

Section A                                     Section B

Section C                                    Section D

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