Unit 2

1. How many babies are born every minute? 2. How many babies are born every year? 3. What’s the population of China? 4. What’s the population of the world?

The population problem is one of the most serious problems in the world today. China has the largest population in the world. If population grows too fast, it will bring lots of serious troubles. Overpopulation makes the traffic crowded. It makes the environment terrible. So we must try our best to control the population.

Bad effects

food shortage water shortage

city problems pollution

Water Shortage

These are not true snows.

Sometimes colorful things are a kind of burden!

Tomorrow’s mountain

Where do you prefer to live, in a quiet country village or a big city? Why?

Work in pairs and answer the questions. Using the words in the box to help you. countryside field flat hospital job office rubbish village 1. Why do people move to cities? Because they want to look for work and have a better life.

2. What are the problems of big cities? Pollution, crime, loneliness, rubbish collection ... are the problems of cities.

Listen to the passage and check the true sentences.1. Parkville was a quite village. √ 2. Arnwick was a city with 200,000 people. × 3. Parkville now has a population of more √ than one million. 4. The local school in Parkville has 2,000 pupils. × 5. Big cities need more money for public services. √

Read and answer the questions.1. What was Parkville when Jo’s grandparents first came to Parkville? It was a quiet country village.2. What is Arnwick? It is a city near Parkville. 3. What is Parkville now? It is a part of Arnwick, with over a million people.

4. Why did people move to the big city Arnwick? Because people wanted to find jobs and they needed a place to live. 5. How long does Jo take to go to school now? It takes an hour by bus.