Band 6.5 IELTS Writing Task 1 Model Answer

Overall Band Score: 6.5 · Cambridge IELTS 21 · 2026-08-17

IELTS Writing Task 1 question

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.

The formation of rain-shadow deserts

Student answer (Band 6.5)

The process diagram illustrates the formation of a rain-shadow desert, which is one type of desert.

Overall, there are seven stages involved in the formation of a rain-shadow desert, starting with winds approaching the coast from the sea and ending with dry winds reaching inland areas.

To begin with, winds approach the coast from the sea at surface level. In the second stage, these winds are pushed upwards and become moist air. Subsequently, the moist air rises further and cools. This leads to the formation of clouds in the fourth stage.

In the fifth stage, heavy rainfall occurs on the windward side of the mountain. After this, the dry air continues over the mountain and reaches the leeward side. Finally, the dry winds reach the inland areas, creating a rain-shadow desert. In addition, the process involves the movement of moist air from the sea over a mountain range, followed by rainfall and the arrival of dry air on the leeward side, resulting in the formation of a rain-shadow desert.

AI examiner evaluation

Task Achievement / Task Response — Band 6.0

The response successfully identifies the main features of the process. You have clearly outlined the stages from the initial wind movement to the final formation of the rain-shadow desert. The overview is effective, and the key stages are logically sequenced. However, to reach a higher band, you could improve the analytical aspect by describing the relationship between the altitude and the moisture levels more explicitly, rather than just listing the stages. The final paragraph is slightly repetitive, as it restates information already covered in the body paragraphs. Focusing on synthesizing the information rather than just listing it would strengthen the response.

Coherence and Cohesion — Band 6.5

The essay is logically organized with a clear introduction, body, and conclusion. You have used cohesive devices such as 'To begin with', 'In the second stage', 'Subsequently', and 'Finally' to guide the reader through the process. Paragraphing is used appropriately to separate the introduction from the procedural steps. The flow of information is generally smooth, although the final paragraph feels a bit redundant because it summarizes the entire process again after you have already detailed the steps. Improving the variety of linking phrases and ensuring each sentence adds new information would enhance the overall cohesion.

Lexical Resource — Band 6.0

You have used a sufficient range of vocabulary to describe the process, such as 'approaching', 'moist air', 'windward side', and 'leeward side'. These terms are accurate and appropriate for the context of a geographical process. While the vocabulary is functional and clear, it lacks a degree of sophistication or 'less common' lexical items that would elevate the score to an 8.0. The word choice is generally precise, and there are no spelling errors. To improve, try to incorporate more varied verbs or descriptive adjectives to characterize the movement of air and the intensity of the weather phenomena.

Grammatical Range and Accuracy — Band 6.5

The response demonstrates a good control of grammar with a mix of simple and complex sentence structures. Most sentences are error-free, and the punctuation is used correctly throughout. You have successfully used passive voice constructions, such as 'winds are pushed upwards', which is appropriate for describing a scientific process. There are no significant grammatical errors that impede communication. To achieve a higher band, you could experiment with more complex sentence structures, such as using participle clauses (e.g., 'Rising further, the moist air cools...') to create a more sophisticated flow.

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