The line graph shows the consumption of energy in the USA since 1980 with projection to 2030 in a
2008 report.
From the beginning, petrol and oil was in the first place with 35 quadrillion units, rose to 40
quadrillion units in 2005. From 2005 to 2020, petrol and oil increase steadily and project to
reach to nearly 50 quadrillion units at the end of the period.
Coal and natural gas shared the similar trend. Coal begin with 15 quadrillion units while natural
gas is higher 5 quadrillion units. From 1985 to 1990, they are equal. After 50-year-period, coal
has risen to nearly 30 quadrillion units, higher than natural gas 5 quadrillion units.
At the lowest part of the graph are nuclear, solar/ wind, and hydropower with only 4 quadrillion
units. In 2010, hydropower failed a little while others have a slight increase. In 2030,
hydropower fallen back to 1980 figure, moreover, nuclear, solar/ wind project to rise to about 10
quadrillion units.
Overall, USA will continue to rely on fusil fuels with sustainable, while the others remain
relatively insignificant


Giang Huang,

From the question you have to

1. Summarise the main points

2. Make comparisons.

You have successfully summarised the main points by describing the trends.

You could be more obvious with your comparisons, for example by talking about ratios rather than absolute values.

For example "At the beginning of the period, the USA consumption of oil and petrol was twice as high as as coal and gas, and almost eight times higher than nuclear, solar or hydropower. By 2010 however the use of nuclear and solar power had almost doubled, whilst oil and petrol consumption had increased by 50%. "

There are some minor verb tense mistakes. Petrol and oil "increased steadily", coal "began", etc but they are not too important in this questions.

Thank you very much for your advice. I am on the way to improve my writing. I hope it will be better with your enthusiastically help.