But there are serious problems in big cities too. The cost of living is high, and there are too many people in some of big cities. Every year many people move to the cities because there are some chances I find jobs, to study at good schools, and to receive good medical care. But sometimes these people cannot find work or a good place to live in. Also, too many people in a small space make it hard to keep the facilities safe and clean.
Some people enjoy living in big cities. Others do not. Before people move to big cities, they should think about the problems of living there,
72. Which is the best title(题目)for this passage?
[A] Big cities.
[B] New York, London, and Paris.
[C] Exciting Places in Big Cities.
[D] Serious Problems in Big Cities.
73. In big cities people can _________.
[A] go to different kinds of museums
[B] see all kinds of plays and films
[C] buy things from all over the world
[D] A, B and C
74. Which of the following is true?
[A] Big cities are not safe and clean enough.
[B] People can easily find a good place to live in a big cities.
[C] Big cities are safe, but not clean.
[D] All people like to live in big cities.
75. In this passage the writer advised (建议) people________.
[A] to move to a big city
[B] not to move to big city
[ C ] not to move to a big city without thinking about the problems there
[D] not lo think too much about the problems before they move to a big city