Process Diagram

Band 8+: WRITING WRITING TASK 1 You should spend about 20 minutes on this task. The diagram below shows how one type of desert, known as a rain-shadow desert, is formed. Summarise the information by selecting and reporting the main features, and make comparisons where relevant. Write at least 150 words.

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Image for topic: WRITING WRITING TASK 1 You should spend about 20 minutes on this task. The diagram below shows how one type of desert, known as a rain-shadow desert, is formed. Summarise the information by selecting and reporting the main features, and make comparisons where relevant. Write at least 150 words.

Our system will evaluate the answer based on this AI-generated description.

The image, titled 'The formation of rain-shadow deserts', diagrams a 7-step process across a geographical cross-section spanning 'Thousands of kilometres'. The process begins over the 'Sea' and 'Coast' with step 1: 'Winds approach coast'. Step 2 shows 'Winds pushed upwards' onto the 'Windward side' of the 'Mountains'. Step 3 is when 'Moist air rises and cools', leading to step 4: 'Clouds form'. In step 5, 'Rain falls' over the mountain's peak and windward side. Following this, step 6 shows 'Dry air continues over mountain' down the 'Leeward side'. Finally, in step 7, 'Dry winds reach inland areas', creating an 'Inland' 'Rain-shadow desert'.

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 graph illustrates the formation of one type of desert, known as a rain‑shadow desert.

Overall, the process consists of seven steps and can be broadly divided into two stages, depending on whether the wind passes before or after the mountain peak.

When winds approach the coast, seawater evaporates and accumulates. On the windward side of mountains, wind pushes upwards. As moist air rises and cools, clouds start to form. Near the peak, the wind can no longer hold moisture, so rainfall occurs.

After precipitation, dry air flows over to the leeward side of the mountain.

After that, dry winds move inland, forming the rain‑shadow desert. This effect can extend for thousands of kilometres. Rain‑shadow deserts always appear on the leeward side of high mountains, which block moist air from reaching inland.

Word Count: 132

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Overall Band Score

(+/- 0.5)

Vocabulary Complexity:
B1 - Intermediate
Using more sophisticated words could be beneficial.

Grammar Mistakes: N/A

Vocabulary Repetition:

rain‑shadow: 3

Try using synonyms for the above words

Task Response

The report effectively summarizes the formation of a rain-shadow desert, covering the main stages of the process. The overall structure is clear, with a good introduction and a logical sequence of steps. The response appropriately addresses the task requirements, and the comparisons between the windward and leeward sides are well made. There are minor omissions, such as not explicitly mentioning all seven steps in detail, but these do not detract significantly from the overall quality. To improve, consider including more specific details from the diagram, such as the labels for each step, and ensure that the word count meets the minimum requirement. The report falls short of the required 150 words.

Coherence & Cohesion

The report is exceptionally well-organized and easy to follow. The overall process is clearly introduced, and the logical division into two stages (before and after the mountain peak) is a skilful way to structure the description. The sequence of steps is presented in a natural, chronological order, and cohesive devices such as 'When', 'After precipitation', and 'After that' are used effectively without being obtrusive. Paragraphing is managed perfectly, with each paragraph focusing on a distinct part of the process. The message flows effortlessly from start to finish.

Lexical Resource

The vocabulary used is precise, natural, and sophisticated. Terms like 'evaporates and accumulates', 'wind pushes upwards', 'moist air rises and cools', 'hold moisture', and 'block moist air' demonstrate a strong command of topic-specific language. The phrasing is flexible and idiomatic, with no awkward or inappropriate word choices. The report shows full control of lexical features, making the description both accurate and engaging. Boost vocabulary complexity to elevate the overall score.

Grammatical Range & Accuracy

The grammar is flawless throughout. A wide range of sentence structures is used, including complex sentences with subordinate clauses (e.g., 'As moist air rises and cools, clouds start to form') and clear, concise simple sentences. Punctuation is correct and appropriate. The report demonstrates full flexibility and control over grammatical structures, with no errors or lapses in accuracy.

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