Process Diagram

Band 5+: summarise the info by selecting and reporting the main features, make comparisons where relevant.

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Image for topic: summarise the info by selecting and reporting the main features, make comparisons where relevant.

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The image depicts a schematic of a hydroelectric power station featuring a river flowing into a high-level reservoir contained by a dam, with an intake that is open during the day and closed at night. Water flows from the high-level reservoir through the intake towards reversible turbines. During the day, the turbine generates electricity by releasing water down to the low-level reservoir, and electricity is transferred via power lines to the national grid. At night, the reversible turbines pump water from the low-level reservoir back to the high-level reservoir.

Given the complexity of the image, the above description may not be entirely accurate.

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Note: Both the topic and the answer were created by one of our users.

The diagram shows the process of generating electricity in a hydroelectric power station.

The first step is the transportation of water from a high-level reservoir to the power station which in the day generates electricity using the water flow and after that , the water is being transported to a low-level reservoir.

The second step is sending the electricity from the power lines to the national grid.

The second to last step of the process is transporting the water from the low level reservoir to the high level reservoir using a reversible turbine which in the daytime is used to operate the generator , while at night it’s used to pump the water into the high-level reservoir.

Word Count: 117

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Overall Band Score

(+/- 0.5)

Vocabulary Complexity:
C2 - Complex
Continue to challenge and refine your language choices.

Grammar Mistakes: N/A

Vocabulary Repetition:

water: 5

reservoir: 4

electricity: 3

power: 3

Try using synonyms for the above words

Task Response

The report adequately covers the main features of the hydroelectric power station process, including the day and night operations, the role of the reversible turbines, and the transfer of electricity to the national grid. It makes some comparisons between day and night activities. However, there are minor omissions, such as not explicitly mentioning the dam and the intake being open during the day and closed at night, which are key details in the visual. The structure is logical, but the phrasing could be more concise and precise. To improve, ensure all main components are mentioned and use clearer, more varied language to describe the process. The report falls short of the required 150 words.

Coherence & Cohesion

The report has a logical structure, but the flow is somewhat disrupted by the ordering of steps and the use of 'second to last' which is awkward. The paragraphing is minimal, and the connection between the day and night operations could be smoother. Consider using clearer sequencing and linking words to improve the overall coherence.

Lexical Resource

The vocabulary is adequate but limited. There is some repetition of 'transporting' and 'high-level reservoir'. The report would benefit from a wider range of precise terms, such as 'reversible turbines', 'pumped storage', 'electricity generation', and 'grid transmission'. Also, avoid informal phrasing like 'which in the day' and use more formal, academic language.

Grammatical Range & Accuracy

The report contains several grammatical errors and awkward phrasing, such as 'which in the day generates electricity' and 'the water is being transported'. There are also punctuation issues (e.g., missing commas). To improve, use a wider range of sentence structures, ensure subject-verb agreement, and correct the use of articles and prepositions. Proofreading for punctuation and clarity is recommended.

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