Band 4.5 IELTS Writing Task 1 Model Answer

Overall Band Score: 4.5 · Cambridge IELTS 20 · 2026-09-12

IELTS Writing Task 1 question

The diagram below shows how fabric is manufactured from bamboo.

Summarise the information by selecting and reporting the main features, and make comparisons where relevant.

Write at least 150 words.

Student answer (Band 4.5)

The given process chart illustrates how fabric is manufactured from bamboo :

This process involves 9 steps in total firstly, a bamboo tree is planted during spring season, then is harvested during autumn season afterwards is cutted into strips subsequently, strips are crushed in order to make liquid pulp, moving ahead, strips are filtered in order to separate long fibres from liquid, moving ahead fibres are soften using water and amine oxide and is spinned in order to make yarn afterwards is weaved to make fabric after that, at last, T-shirts, socks etc are made and is transported to the shops for sail.

AI examiner evaluation

Task Achievement / Task Response — Band 5.0

The student attempts to summarise the diagram illustrating the manufacturing of fabric from bamboo, identifying the main stages of the process such as planting, harvesting, crushing, and weaving. However, the response falls significantly short of the required 150-word minimum, containing only 103 words. This under-length severely limits the extent to which the task can be fully addressed, resulting in an underdeveloped overview. While key features are mentioned, the lack of length prevents a fully developed response, leading to a score of 5.0 according to the task achievement descriptors for under-length and limited development.

Coherence and Cohesion — Band 4.0

The text suffers from a major structural flaw as it is written as one continuous, run-on sentence without any paragraph breaks or proper terminal punctuation. The response relies heavily on repetitive, comma-spliced transition phrases such as 'firstly', 'then', 'afterwards', 'subsequently', and 'moving ahead' rather than logical and varied cohesive devices. Although the general sequence of the 9 steps follows the chronological order of the diagram, the lack of conventional paragraphing and the extreme reliance on comma splices severely impede the logical flow and cohesion of the writing, justifying a band score of 4.0.

Lexical Resource — Band 5.0

The student demonstrates a basic vocabulary appropriate for describing a simple mechanical and chemical process, using words like 'planted', 'harvested', 'crushed', 'filtered', and 'yarn'. However, there are notable word-choice and collocation errors, such as using 'soften' instead of the noun form or passive participle 'softened', and the misuse of the phrase 'for sail' instead of 'for sale'. The range of vocabulary is limited and repetitive, which matches the characteristics of a band 5.0 for lexical resource.

Grammatical Range and Accuracy — Band 4.0

Grammatically, the response is severely constrained by the fact that the entire 103-word text consists of a single run-on sentence linked exclusively by commas. This demonstrates a complete absence of proper sentence boundaries, punctuation, and effective complex sentence control. There are also direct grammatical errors, such as 'cutted' (an incorrect past participle form) and awkward passive constructions like 'is spinned' instead of 'is spun'. Because the writing lacks independent, well-constructed sentences and contains frequent basic structural errors, it earns a band score of 4.0.

See this exact question answered at other band scores — the same prompt compared across bands.

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