2. 外语
  3. For this part, you are allowed 30 minutes to write a short essay entitled Electric Energy Production in the US based on the stat

For this part, you are allowed 30 minutes to write a short essay entitled Electric Energy Production in the US based on the stat

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问题 For this part, you are allowed 30 minutes to write a short essay entitled Electric Energy Production in the US based on the statistics provided in the pie charts below. Please give a clear description of the charts. You should write at least 120 words but no more than 180 words.
选项
答案 Electric Energy Production in the US The energy sources of the United States electric energy production made up different percentages in 1980 from those in 1970. Among the five major sources of energy are nuclear, coal, natural gas, hydro and oil. Some increased whereas others decreased. Nuclear energy increased greatly during these ten years: rising from only 1 percent in 1970 to 11 percent in 1980. As the biggest source of energy in the United States, coal provided 47 percent of the whole in 1970, and in 1980 it amounted to 51 percent, an increase by 4 percent. On the other hand, the percentages of the sources of natural gas, hydro and oil decreased. Natural gas fell down from 24 percent in 1970 to 15 percent in 1980. Of the three sources that reduced, oil dropped the least, from 12 percent in 1970 to 11 percent in 1980, a slight decline by 1 percent only.
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