Whatwillcitylifebelikeinthefut-优题课

What will city life be like in the future? Some people think that life in the cities is going to be      . They      that cities will become more and more crowded.       the number of people increases, there will be less space for each person. This      will cause other problems—more crime, dirtier streets, and worse problems with traffic       we have now. How will people find enough drinking water, energy (such as gas and electricity) and housing?      life will be hard, people who live in cities will worry more, and they may become sick.      these reasons, some say that nobody will want to live in urban areas.
How can we      such problems as overcrowding, crime, and traffic? In some cities, thousands of people are already           in the streets because there is so little suitable housing—and because         are so high. The crime rate isn't going down.      , it is      so fast that many people are afraid to go out at night. Traffic is also getting worse. More and more often, traffic jams are so bad that cars don't move at all for several blocks. These      problems have been getting worse, not better, so many people see no      for the future of the city.
However, not all people believe in the horrible      for cities of the future. Instead, they feel that they can solve present urban problems and      future ones.
The           of any modern city are not unique(独特的) to that city, that is to say, all the cities in the world have to solve the problems of traffic jams, crime, housing, energy, drinking water, and overcrowding. Yet many cities have found answers to one or more of these difficulties. Some European cities, such as Stockholm, Sweden, or London, England, have planned communities that      people with apartments, jobs, shopping centers, green space, entertainment, and transportation. Many U.S. cities are building their downtown areas. Urban       can learn from one another. They can      solutions that have been successful in other parts of the world.