摘要： 阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。The world’s cities are getting more and more crowded. Cities such as Tokyo and Shanghai ___4
The world’s cities are getting more and more crowded. Cities such as Tokyo and Shanghai ___41___(consider) “mega-cities”, because___42___their big size and huge populations.There are two main reasons why cities are becoming so crowded.
First, the primary cause of cities___43___ (become) so crowded is economic. As a country develops, its cities become the engines of development, thus jobs are available in these areas. For example, Tokyo was the motor for Japan’s economic boom in the 1960’s and 70’s; as ___44___result, its population increased___45___ (rapid). People moved to Tokyo because they could find employment there.
Second, another___46___ (contribute) factor is sociocultural. Thousands of people move to the cities not only for jobs but also for educational and personal reasons. The better universities in big cities attract thousands of students every year, and most of them choose ___47___（work）in the city after graduation. Moreover, young people will move to the city as the rural areas are more___48___ (tradition). Therefore, young people believe this is a barrier to their personal freedom.
In___49___ (conclude), economic and cultural factors are the major causes of huge urban population. People will always move to the areas____50____provide opportunity and freedom.
【答案】41. are considered
42. of
43. becoming
44. a
45. rapidly
46. contributing /contributory
47. to work
48. traditional
49. conclusion
50. which/that
【解析】
