Process Diagram

Band 5+: The diagram below illustrates how a simple water filter is constructed and how if functions to produce clean drinking water.

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Image for topic: The diagram below illustrates how a simple water filter is constructed and how if functions to produce clean drinking water.

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The image shows a diagram of a simple water filter with layers consisting of gravel, charcoal, and sand inside a container labeled "simple water filter," with impure water entering from the top, flowing down through the layers. The filtered water exits through a pipe into a separate drinking water storage tank, which is connected to a tap.

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

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The presented illustration demonstrates a construction of a water filter and how it works to produce pure drinking water.

Overall, it is a 5-stage, man-made, linear process. Beginning from impure water pouring into a water filter, ending up with clean drinking water.

First, impure water pours into a water filter, in order to purify all dirt. Next, it passes through a sand layer, which removes all large pieces and dirt. After that, it flows through charcoal, removing impurities from water and adsorption. Next, it passes through gravel, as an extra layer it filters water again and ensures purity.

Afterwards, sanitized water goes to a drinking water storage tank, where cleaned water is stored. Then, it flows through a tap, in order to pour clean drinking water to a sink.

Word Count: 129

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Overall Band Score

(+/- 0.5)

Vocabulary Complexity:
B2 - Upper Intermediate
Opt for even more advanced words when appropriate.

Grammar Mistakes: N/A

Vocabulary Repetition:

water: 11

drinking: 4

through: 4

filter: 3

Try using synonyms for the above words

Task Response

The report provides a general overview of the water filter's construction and function. However, there is a lack of specific details and accurate descriptions of each stage. The description of the layers (sand, charcoal, gravel) is quite basic and could benefit from more precise information about their roles in the filtration process. To improve, focus on providing more detailed and accurate descriptions of each component and stage in the process. The report falls short of the required 150 words.

Coherence & Cohesion

The report generally presents a clear overview of the water filter's construction and function. However, the organization could be improved for better flow. Consider combining some of the shorter sentences and using more varied transition words to enhance the connection between stages. For example, instead of repeatedly starting sentences with 'Next,' use alternatives like 'Subsequently' or 'Following this step.' Paragraphing is adequate but could be refined to group related steps more logically.

Lexical Resource

The vocabulary is generally appropriate for the task, but there's room for improvement in terms of variety and precision. While words like 'impure,' 'pure,' and 'sanitized' are used, incorporating more specific terms related to filtration or water purification could elevate the report. For instance, instead of 'removes all large pieces and dirt,' you could use 'filters out particulate matter.' Also, avoid informal language such as 'dirt'.

Grammatical Range & Accuracy

The report contains grammatical errors and phrasing issues that affect clarity. There are issues with article usage (e.g., 'a water filter' vs. 'the water filter'), prepositional phrases, and sentence structure. For example, 'in order to purify all dirt' could be rephrased as 'to remove contaminants.' Also, ensure subject-verb agreement throughout the report. Reviewing and correcting these errors will significantly improve the report's grammatical accuracy.

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