1981年至2000年英国燃料产量

The response identifies the main overall trends and petroleum’s leading position and meets the minimum length. However, “140 million units” misstates the unit, and the detail omits major intermediate movements in petroleum and coal.

Ideas are organised logically from overview to detailed stages, with cohesive devices such as meanwhile and conversely used naturally throughout.

Vocabulary shows useful range in expressions such as “surging” and “overtaking”. However, “manufacturing level” is unsuitable for these fuel-production data, and “prevalent” does not precisely express a ranking by output.

Structures are generally accurate and varied, including a while-clause in the overview and participial clauses such as “ending the period” and “overtaking coal”. Some expressions are awkward, but sentence construction remains controlled.

The response covers the main trends and gives an overview, but it repeatedly frames the data as consumption rather than production, names only 'a country in Europe' instead of the UK, and includes inaccurate figures such as coal falling to about 50 and natural gas reaching just over 80 rather than 100.

The response is logically organised with clear paragraphing, a range of cohesive devices, and generally smooth progression, with only minor lapses in the flow of detail stages.

There is a useful range of trend vocabulary, including “plummeted”, “leveled off” and “rose considerably”. Precision is weakened by repeated consumption terminology for production data, the unsupported description “most important”, and the awkward phrase “saw a stability”.

A wide range of structures is used, including participle clauses and complex sentences, with generally strong control and only occasional, non-impeding errors.

The response covers all three fuels and selects useful turning points, but its overview wrongly implies coal was lowest throughout and oversimplifies gas growth as steady. Coal’s rebound timing and the comparison of petroleum’s final and mid-1990s levels also need clarification.

Ideas progress logically through a clear introduction, overview, and detailed stages, with cohesive devices and referencing used naturally and without strain.

Vocabulary is flexible and precise for describing trends, including items like surged, trough, rebounded, and trended downward, with only occasional less precise phrasing.

A range of complex sentences is used with strong control, including subordinate clauses introduced by “before” and participial constructions such as “settling slightly lower”. Grammar is generally accurate, even where the information expressed needs correction.