题目:The pie charts below show units of electricity production by fuel source in Australia and France in 1980 and 2000.
内容要点
此图为四个饼图。描述每个饼图时，注意精确引用每个数据，其中占百分比最大和最小的要重点描述。饼图一般为静态图，但本图中显示了1980到2000年的变化，因此同时也需要进行比较，描述变化趋势。两个国家之间可以找到一些电力来源的相同点和不同点。
The information given by the pie charts is about how electricity is produced by different sources in two countries –Australia and France in two separate years (1980 and 2000).
(首段paraphrase原题，点明描述对象、地点和时间)
In Australia, the units of electricity are produced by four different sources. In 1980, coal was the most popular source which produced 50 units of electricity. It is interesting to note that the units of electricity generated by hydro power equaled that by natural gas (20 units). In addition, only 10 units of electricity sourced from oil. Two decades later, the total production had risen to 170 units. Specifically, the data for coal increased sharply to 130 units, and that for hydro power witnessed a similar trend. In contrast, both natural gas and oil rapidly dropped to only 2 units respectively.
(第二段描述澳大利亚几种电力来源百分比和20年前的变化趋势，包括1980年和2000年几种电力来源分别所占的百分比)
In terms of France, in the year of 1980, its electricity was generated by five sources. Natural gas and coal were the most important ones which produced 50 units altogether, representing more than 50% of the total 90 units. It was followed by oil and nuclear power which generated 20 units and 15 units respectively. Only 5 units was made by hydro power. After 20 years, total production soared to 180 units, among which nuclear power amazingly rocketed to 126 units, while coal remained constant. Natural gas and hydro power alike dropped to only 2 units.
(第三段描述发过几种电力来源所占百分比和20年前的变化趋势，包括1980和2000年几种电力来源百分比，以及变化趋势分析)
In conclusion, over the two decades, the approaches of electricity generation had undergone great changes both in France and in Australia. It is noticeable that coal and hydro power were relatively important in the two countries.
(全文总结，点明20年来的变化很大，其中煤炭和水力是最重要的来源)
满分要素剖析:
语言表达
本文的用词和句型变化多端，避免重复，灵活表达。例如，表示生产电力的短语有:be produced by, be generated by和be sourced from。
表示变化趋势的短语也很多，例如:rise to, increase sharply to, witness a similar trend, drop to, soar to ,rocket to等等。
It is interesting to note that the units of electricity generated by hydro power equaled that by natural gas (20 units).
句型it is interesting to note that值得借鉴。句中that指代the units of electricity generated, 很好的避免重复。Equal作为动词表相等。
Specifically, the data for coal increased sharply to 130 units, and that for hydro power witnessed a similar trend.
此句中witness a similar trend和后文undergo great changes都是非常合适的描述变化的短语。
After 20 years, total production soared to 180 units, among which nuclear power amazingly rocketed to 126 units, while coal remained constant.
本句中among which指的是在这180units中，while coal指代的是while the units generated by coal。这样的表达简洁明了，避免了不必要的重复。
