题目内容
With the development of agriculture and industry, more and
more people are pouring into big cities, ________ causes so much 56.___________
trouble.__________the growth of the population, city problems 57.___________
are g_____________. To begin with, big cities are becoming so 58.___________
_______(拥挤) that it makes finding a job difficult. People without 59.___________
a job probably become a d__________ to our society. In addition, 60.___________
the environment is getting w_________, and there are traffic 61.___________
problems and pollution problems as ______. We have to face 62.___________
them. Big cities need to control the population to h_______ develop 63.___________
__________(自己) for the future. As for protecting the environment, 64.___________
I think every _____(市民)should contribute to protecting the environment. 65.
56. which 57.With 58. growing 59. crowded 60. danger
61. worse 62. well 63. help 64. themselves 65. citizen