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第三节：摘录信息
阅读短文，根据所读内容在文后71—80的空格里填上适当的单词或短语。注意：每空不超过3个单词。
There are a total of seven billion tons of garbage kept in Chinese cities and this garbage together takes up 600 million square meters of land space. Urban garbage has now become one of the four major polluting sources in China.
China has about 700 cities. Every day, these cities produce 100 tons of garbage in total and the amount still increases by 8%-10% every year. In China, about two-thirds of the cities are surrounded by garbage. In many cities, the garbage is in the open air with on one to take care of it. The garbage not only damages the city’s image, it also pollutes the air, water and soil, and puts a threat to human health.
China will face a critical (关键的) period in its modernization drive in the fifty years to come. As urbanization(城市化) process has quickened, the garbage in cities will become a serious problem to our human life and we should pay great attention to the problem, said Dong Suocheng, executive director of the China Resources Institute.
In the next fifty years, China’s population scale(规模) and urbanization process will reach its top, which will produce more garbage. Considering this, China should make great efforts to develop recycled economy. On the one hand, China should make sure that less garbage will be produced; on the other hand, China should make good use of garbage resources and turn garbage handing into an industry, and make sure that garbage industry will cover every part of garbage processing, from garbage collecting and classifying to garbage transportation and treatment. This might serve as a good way to solve the garbage problem in cities, he said.
Title:71.      has been one main polluting source
Conditions
At presentGarbage in cities has become one of the four 72.       in China
About two-thirds of the cities in China are surrounded by garbage.
In many cities, garbage is in the 73.      with no one to take care of it.
74.      
Garbage in cities will become 75.       .
More garbage will be produced.
Effects
76.      
Polluting air, water and soil
Putting a threat to 77.      
78.      
Developing recycled economy
Making sure less garbage will be produced
Making good use of 79.      
Turning garbage handling into an industry
Making sure garbage industry will cover every part of 80.