Band 8.0 IELTS Writing Task 1 Model Answer

Overall Band Score: 8.0 · Cambridge IELTS 21 · 2026-09-19

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 8.0)

The process diagram illustrates the formation of rain-shadow deserts.

Overall, this is a linear process consisting of seven steps, beginning with sea winds approaching the coast and ending with the dry winds reaching inland areas. While moist air rises and produces rainfall on the windward side, dry air descends on the leeward side.

Initially, the winds approach the coast from the sea. As the winds approach the coast, they are pushed upwards towards the mountain. Once the winds reach the mountain, the moist air begins to rise. When the air reaches the higher parts of the mountain, it cools further. This results in cloud formation. Once the clouds develop, rainfall occurs on the windward side.

Subsequently, the remaining dry air crosses the mountain and descends on the leeward side. The air on the leeward side becomes increasingly dry as it moves inland. Finally, the dry winds reach inland areas, resulting in the formation of a rain-shadow desert.

AI examiner evaluation

Task Achievement / Task Response — Band 8.0

The student has successfully addressed all parts of the task by providing a clear and accurate summary of the process diagram showing the formation of rain-shadow deserts. The response includes an effective overview in the second paragraph that highlights the main features, such as the linear nature of the seven steps, the contrast between moist air rising on the windward side and dry air descending on the leeward side. All key stages from the sea winds approaching the coast to the dry winds reaching inland areas are reported accurately in logical sequence. The details selected are directly grounded in the visual data without introducing extraneous or incorrect information. The response fully satisfies the requirements of Academic Task 1.

Coherence and Cohesion — Band 8.0

The response exhibits a clear logical organisation and progression throughout. Information is grouped into sensible paragraphs: an introduction, an overview paragraph, a body paragraph detailing the first half of the process, and a concluding body paragraph covering the final stages. Cohesive devices such as 'Overall', 'Initially', 'Once', 'Subsequently', and 'Finally' are used appropriately to guide the reader through the sequence of events. Referencing is clear and accurate, ensuring that the relationships between the geographical features and atmospheric conditions are easy to follow. Paragraphing is used sufficiently and appropriately.

Lexical Resource — Band 7.0

The student demonstrates an adequate and appropriate range of vocabulary suitable for describing a geographical process. Terms such as 'linear process', 'moist air', 'windward side', 'leeward side', and 'precipitation' (or related descriptive terms like 'rainfall') are used correctly. While the vocabulary is generally precise, it relies somewhat on terms directly provided in the prompt rather than demonstrating a wider range of sophisticated paraphrasing. However, there are no notable spelling or word-choice errors, and communication is smooth and clear throughout.

Grammatical Range and Accuracy — Band 8.0

The writer demonstrates good control of grammar and punctuation, employing a mix of simple and complex sentence structures effectively. Examples of complex structures include time and conditional clauses such as 'As the winds approach the coast, they are pushed upwards...' and 'Once the winds reach the mountain, the moist air begins to rise.' The majority of sentences are entirely error-free, and punctuation is handled correctly. Grammatical accuracy is high, with no noticeable slips or errors that cause difficulty for the reader.

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