As the world’s urban population gets bigger, cities are struggling to provide the basic services tha

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As the world’s urban population gets bigger, cities are struggling to provide the basic services that their residents need. One of the most pressing problems is public transport. Take a look at the crisis facing the city of London. At no time in history has there been such a mass migration of people from countryside to city as is happening now. By the year 2030, it’s estimated that more than two thirds of the world’s population will be living in cities—twice as many as today. This means that the problems faced by cities today—overcrowding, poor housing, unemployment, poverty, and lack of food and water—will be twice as bad in the next century, unless we find solutions soon.
London is a good example of the problems facing many major urban centers. It was the world’s first megacity—the first with a population of a million people. Its expansion was made possible by the invention of the steam engine, which , among other things, powered the world’s first underground railway.
Today, London has one of the world’s most extensive transport systems. But, because it was the first city to build a railway network, much of the infrastructure—the trains and buses, the tracks and tunnels—is now hopelessly out-of-date, and needs urgent modernisation.
London’s future success depends very much on transport. The city lies at the heart of Britain’s road and rail networks and problems in London can rapidly affect other areas of the country. On an average morning, overground trains bring passengers to stations on the outskirts of the city, and they then continue their journeys by underground, bus or taxi.
1. More than two thirds of the world’s population will be living in cities in             years.
  A. 30        B. 23          C. 17            D. 2007
2. With the development of society         is becoming one of the most serious problems of cities.
  A. poor housing    B. poverty    C. unemployment    D. public transport
3. The underlined word “megacity” in paragraph two means       .
  A. a city with a population of a million people.
  B. a city with the problem of public transport.
  C. a city with a lot of car factories.
  D. a city with much pollution.
4. The railway network of London is           .
  A. very helpful       B. in good use    C. behind the times    D. first-class
5. If London wants to develop fast, it should solve the problem of        first.
  A. transport               B. housing     
C. water and electricity      D. the working conditions of workers
 阅读 C D A C A 
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