Process Diagram

Band 8+: The diagram below shows how drinking water is made using solar power.

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Image for topic: The diagram below shows how drinking water is made using solar power.

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The image displays a diagram illustrating a system for purifying water with the use of solar power. It features a solar panel that captures sunlight and is connected to a converter transforming solar energy into electricity. Electricity powers a pump located in an underground well, which pumps water up to a water tank situated on a wooden platform. The water tank is connected to a water filter, which purifies the water for drinking. The clean water is then dispensed through a tap into a moveable container. No numerical data points, percentages, or any quantitative information are provided in the image.

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

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The diagram illustrates the process of producing drinking water by using a solar-powered water pump and water filter.

Overall, the whole process consists of two main stages: generating electricity and filtering the water.

The process begins with absorbing sunlight through a solar panel, which then goes through the converter to transform it into electricity. Next, the electricity is transmitted to a machine arranged in an underground well, creating energy to operate it. Subsequently, the machine pumps water in the well going through the first tube, connected to the water tank, to pour the water into it.

The second stage focuses on ensuring the source of water can be used after filtering. In order to do that, the water filter is put in a water tank and connected to a second tube for the clean water to flow inside. After that, the clean water becomes drinking water that can be used by opening the tap on the second tube to let the water fall into the moveable container.

Word Count: 167

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Overall Band Score

(+/- 0.5)

Vocabulary Complexity:
C1 - Intricate
Strive to incorporate even richer and more precise language.

Grammar Mistakes: N/A

Vocabulary Repetition:

water: 13

process: 3

electricity: 3

through: 3

second: 3

Try using synonyms for the above words

Task Response

The report effectively addresses the task by describing the main stages of the process, from solar energy capture to water filtration and collection. The overall structure is clear, with a logical progression and an appropriate overview. Minor inaccuracies, such as describing the water filter as being 'put in a water tank' rather than connected to it, and the slightly awkward phrasing in a few places, do not detract from the overall clarity. To improve, ensure precise descriptions of the components and their connections, and consider using more varied vocabulary to describe the flow of the process.

Coherence & Cohesion

The report is well-organized and easy to follow, with a clear overall structure and logical sequencing of the process. The use of cohesive devices is generally effective, though there are a few minor lapses, such as the slightly awkward phrasing in 'the machine pumps water in the well going through the first tube' which could be clearer. Paragraphing is managed well, with a clear separation of the two main stages.

Lexical Resource

The vocabulary used is appropriate and demonstrates a good range of topic-specific terms (e.g., 'solar panel', 'converter', 'underground well', 'water filter'). There is some repetition of words like 'water' and 'tube', and a few phrases could be more precise (e.g., 'a machine arranged in an underground well' could be 'a pump located in an underground well'). Overall, the lexical choices are accurate and natural, but there is room for more sophisticated and varied expression.

Grammatical Range & Accuracy

The report demonstrates a good range of grammatical structures, including passive voice and complex sentences, which are used with a high degree of accuracy. There are no significant grammar errors, and punctuation is used correctly. However, some sentences are slightly long and could be broken down for better clarity, and there is a minor issue with the phrase 'to pour the water into it' which could be more concise. Overall, the grammar is strong and controlled.

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