剑桥雅思7 test 4小作文考官范文解析 电力燃料来源
该题目的饼状图跟我们见到的大多数饼状图都不太相同。以往整个饼图往往代表100%的份额，每一小块代表不同项目所占的具体比例，但该饼图却是数字。如果不注意的话会直接导致跑题。
除此之外，该题目由4张图构成。我们在分类对比的时候即可以将1980年的放在一组，2000年的放在另外一组。也可以按照澳大利亚和法国进行分类。两者没有什么好坏之分，只看哪种更加容易进行对比描述。下面让我们来看看考官是如何操作的。
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剑桥雅思7 test 4小作文题目
The pie charts below show units of electricity production by fuel source in Australia and France in 1980 and 2000.
Summarize the information by selecting and reporting the main features, and make comparisons where relevant.
剑桥雅思7 test 2小作文考官范文
The charts compare the sources of electricity in Australia and France in the years 1980 and 2000. Between these years electricity production almost doubled, rising from 100 units to 170 in Australia, and from 90 to 180 units in France.
In 1980 Australia used coal as the main electricity source (50 units) and the remainder was produced from natural gas, hydro power (each producing 20units) and oil (which produced only 10 units). By 2000, coal had become the fuel for more than 75% of electricity produced and only hydro continued to be another significant source supplying approximately 20%.
In contrast, France used coal as a source for only 25 units of electricity in 1980, which was matched by natural gas. The remaining 40 units were produced largely from oil and nuclear power, with hydro contributing only 5units. But by 2000 nuclear power, which was not used at all in Australia, had developed into the main source, producing almost 75% of electricity, at 126 units, while coal and oil together produced only 50 units. Other sources were no longer significant.
Overall, it is clear that by 2000 these two countries relied on different principal fuel sources: Australia relied on coal and France on nuclear power.
剑桥雅思7 test 4小作文考官范文解析
Task achievement
1. 数据选取方面。文章涉及到了表中所有的项目，虽然其中有一些没有给出明确数据，但仍能让人产生大致印象。比如2000年澳大利亚石油和天然气就是通过only hydro continued to…来体现的。
这种对微小数据的描写（写了太占篇幅，完全不提到又会遗漏数据）十分值得我们学习。
2. 文章第一段的第二句和最后一段都对图标的整体趋势进行了总结。前者主要总结共性，而后者则是强调差异性。
小作文里的总结十分关键，几乎是5分和6分的分水岭。
3. 文章对数据进行了合理的对比。首先是澳大利亚和法国内部描述了各自的变化趋势，包括主要能源构成是什么，发生了什么变化等。其次，在后面描述法国核能数据的时候又特意提到了与澳大利亚的差异性。
比较角度包括：主要构成，相似部分，大小差异，你有我无等。
Coherence and Cohesion
1. 文章逻辑结构合理。第一自然段转述题目，总结两个国家的数据共性。第二自然段以描述澳大利亚情况未住。第三自然段描述法国。最后一段总结两者差异。
2. 文章主要使用各种各样的指代来进行逻辑链接，间或使用连接词。如第二自然段的remainder, continue, 第三自然段的In contrast, the remaining, while, other sources, 以及最后一段的overall等。
Lexical Resource
文章用词丰富。尤其是对于各种占比的描述几乎没有重复的地方，具体词汇短语总结请参考下方“高分词汇短语”部分。
Grammatical Range
语法结构方面，文章除了使用并列结构之外，还应用了非谓语动词做补语、定语从句等来增加句子的多样性。
高分词汇短语总结
double v. 翻倍，变成双倍。
remainder n. 剩余部分。
be matched by… 与…相当
contribute v. 贡献，可以表示占了多少。
approximately = largely = almost 用于描述不太准确的数据
rely on 依赖
principal adj. 主要的。
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