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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 questio

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

admin2022-05-23  111
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 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 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 and to heat nearby buildings. In Paris, France, some power plants burn almost 2 million metric tons of the city’s 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.
    But there are problems in using garbage as a fuel. Garbage that burns easily, such as food scraps(残羹剩饭) and paper, must be separated from metals, glass, and other materials that do not burn easily. This separation process is normally costly. Another problem is that burning garbage can pollute air.
    Our fossil fuel supplies are limited. Garbage might be one kind of energy source that we can use to help meet our energy needs. Burning it could also reduce the amount of garbage piling up on the earth.
What is the author’s attitude to burning garbage?
选项 A、Negative.
B、Indifferent.
C、Favorable.
D、Anxious.
答案C
解析 根据最后一段最后两句“Garbage might be one kind of energy source that we can use to help meet our energy needs. Burning it could also reduce the amount of garbage piling up on the earth. ”可知，作者认为垃圾或许可以作为满足能源需求的一种能源；燃烧垃圾还可以减少垃圾的堆积。由此可推知，作者对燃烧垃圾的态度是赞同的(favorable)。negative：消极的；indifferent：漠不关心，不感兴趣；anxious：焦虑，担心。故选C。
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