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About 100 years ago, ten percent of the world’s population lived in cities. By 2008. however, half of the world’s population lived in cities.
• In your opinion, why has this change occurred?
• Is this change a positive or negative development? Explain.
• Where do you think most people will live in the future: in cities, in suburbs, or in the countryside? Why?

2) There are both positive and negative developments about the rising amount of people living in big cities. Among positive - higher standards of living, better communication and lifestyle

Among negative - air pollution, depression, stress

3) I think , in the future people will tend to build houses and buy a property aside the big sities. More and more people can afford having dachas and a big house in the countryside

1) Cities have become the hearts of economic life - banks, shops, business-centers. That's why a lot of people live there. Cities give people better life and opportunities for job, entertainment