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  3. How can we get rid of garbage? Do we have enough energy sources to meet our future energy needs? These are two important ques

How can we get rid of garbage? Do we have enough energy sources to meet our future energy needs? These are two important ques

admin2019-05-15  33
问题    How can we get rid of garbage? Do we have enough energy sources to meet our future energy needs?
   These are two important questions that many people are asking today. Some people think that man might be able to solve both problems at the same time. They suggest using garbage as an energy source, and at the same time it can save the land to hold garbage.
   For a long time, people buried garbage or dumped(倾倒)it on empty land. Now, empty land is scarce. But more and more garbage is produced each year. However, garbage can be a good fuel to use. The things in garbage do not look like coal, petroleum, or natural gas: but they are chemically similar to these fossil(化石)fuels. As we use up our fossil fuel supplies, we might be able to use garbage as an energy source.
   Burning garbage is not a new idea. Some cities in Europe and the United States have been burning garbage for years. The heat that is produced by burning garbage is used to boil water. The steam that is produced is used to make electricity or to heat nearby buildings. In Paris, France, some power plants burn almost 2 million metric tons of the city garbage each year. The amount of energy produced is about the same as would be produced by burning almost a half million barrels of oil.
   Our fossil fuel supplies are limited. Burning garbage might be one kind of energy source that we can use to help meet our energy needs. This method could also reduce the amount of garbage piling up on the earth.
What problems can man solve by burning garbage?
选项 A、The shortage of energy and air pollution.
B、The shortage of energy and the land to hold garbage.
C、Air pollution and the shortage of fossil fuel.
D、Air pollution and the shortage of land to hold garbage.
答案B
解析 细节题。根据文章第二段第二句和第三句可知，有些人认为，人类或许能够同时解决这两个问题。他们建议用垃圾作为能源，同时，这样也可以节省用来存放垃圾的土地。由此可知，通过焚烧垃圾人类可以解决的问题是能源短缺和堆放垃圾的土地问题，所以选项B(能源短缺和堆放垃圾的土地问题)符合文意。选项A(能源短缺和空气污染)、选项C(空气污染和化石燃料短缺)和选项D(空气污染和存放垃圾的土地短缺)中的空气污染问题文中未提及，均排除。故本题选B。
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