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  3. Humans are the dominant species on planet Earth. Their numbers are increasing

Humans are the dominant species on planet Earth. Their numbers are increasing

游客2024-07-06  50
问题    Humans are the dominant species on planet Earth. Their numbers are increasing rapidly. Their environment no longer restricts them, as they can live in the most hostile of deserts or the bitter cold of Antarctica.
   Human culture is heavily based on the earth’s natural resources—oil, coal, metals, soil, water and forests. Industrialized society is using increasing amounts of these resources each year. Governments and industrialists strive for economic growth—for factories and mines to produce more each year than they did in the previous year. But fuels and metals and the soil are nonrenewable resources. Once used, they are gone forever. In many cases, the lifetime of these resources is coming to an end.
   Factories and machines create wastes. These wastes are poured into the atmosphere, the water and even into the soil. The damaging effect of this pollution is, in some cases, permanent.
   To reduce pollution creates further problems. Factories may have to be redesigned or even pulled down. This costs money and may mean loss of livelihood for many workers.
   Modem technology is creating an additional problem—it is making industry more and more automatic. This means that fewer people are needed to operate factories and offices. The consequent loss of jobs is a worldwide problem and western society is still struggling to find the answer.
   This introduction gives you some idea of the topics to be discussed in detail in this chapter.
选项 A、the beginning part of a certain chapter
B、the middle part of a certain chapter
C、the last part of a certain chapter
D、a self-contained chapter
答案 A
解析 推断题。从文章的内容、结构、语调和最后一段的承上启下作用来看，这篇文章应该是一个章节的开头。
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