The graph below gives information from a 2008 report about consumption of energy in the USA since 1980 with projections until 20

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问题     The graph below gives information from a 2008 report about consumption of energy in the USA since 1980 with projections until 2030.
    Summarise the information by selecting and reporting the main features and make comparisons where relevant.
    Write at least 150 words.
   

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答案 The line graph shows the amount of energy consumed in the US from 1980 to 2015, as well as projected consumption to 2030. Petrol and oil are the most important energy sources throuahout the period: despite fluctuation in the first 15 years, the consumption of these two fuels rose steadily, and this is projected to persist, reaching 50q in 2030. Coal was as important as natural gas before 2015, but the gap between these two fuels is likely to widen. While the amount of coal consumed is predicted to climb to 30q in 2030, the figure for natural gas will possibly remain stable at 25q. Other fuel sources are less significant. Nuclear power consumption saw a steady increase to around 8q in 2005 and maintained this level until 2015, after which the level of consumption will not experience any remarkable change. The use of solar/wind and hydropower is limited, and hydropower is the only fuel source which is predicted to fall back to the 1980 figure. Overall, fossil fuels will make up a large proportion of the energy consumption in the US, whereas renewable resources and nuclear energy will remain insignificant.

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