day by day.To begin with，big cities are becoming so crowded that it makes

　　jobs very difficult.As a result，people without jobs are likely to become

　　to our society.In ，the environment is getting worse and worse，and there is pollution and traffic problems as well as— .We can’t choose but face with——

　　them.In my opinion，big cities need to control the population to help develop

　　for the future.In terms of improving the environment，every citizen should be called on to contribute to

　　the environment.

　　书面表达

　　Dear Editor，

　　I want to say something on behalf of my classmates about the food and water shortages being experienced in many parts of the world.

　　What should be done to deal with the problem？On the one hand，we should focus on environmental protection and imporve our treatment of precious，non-renewable resources.On the other hand，strict measures should be taken to protect farmland.At the same time，of course，developed countries should accept the fact that they have a responsibility to help the poorer ones that are experiencing food shortages.

　　As for middle school students like me，what we can do is waste as little as we can，and study hard so that one day we may be able to help solve such problems.

　　Yours sincerely，

　　Li Hua

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