Band 6.0 IELTS Writing Task 1 Model Answer

Overall Band Score: 6.0 · Cambridge IELTS 19 · 2026-09-15

IELTS Writing Task 1 question

 

The diagram below shows how a biofuel called ethanol is produced.

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

Student answer (Band 6.0)

The diagram illustrates the process by which ethanol is being produced. Overall, there are several stages, beginning with planning of trees and producing ethanol which is being used not only in land-based vehicles but also in aircrafts.

To begin with, plants and trees are grown in the present of sunlight and carbondioxide produced from the vehicles, which is then harvest through a tractor machine. After harvesting, the stem goes under pre-processing by grinding them with a grynder, in which the stems are converted into the small particles. From these particles cellulose are being founded for futher process. Following this, in the lab the cellulose is being processed to form sugars from it.

Now, the microbes are being added to the sugar for the production of biofuel called ethanol. After adding the microbes, eventually the ethanol is produced. This ethanol fuel is later used in Cars, Airplanes, Trucks. The carbondioxide release from vehicles or aircrafts are providing energy to the plants and trees for growing, which creates a cycle among them.

AI examiner evaluation

Task Achievement / Task Response — Band 6.0

The student covers all the key stages of the ethanol production process shown in the diagram, ranging from the growth of plants and harvesting to pre-processing, cellulose extraction, sugar conversion, microbe addition, and ultimate usage in vehicles. An overview is successfully provided in the introduction, highlighting the cyclical nature of the process and its various applications. However, there are minor inaccuracies in the description of certain steps, such as mentioning 'planning of trees' instead of planting, and minor misreadings of the diagram labels (e.g., 'cellulose are being founded'). Despite these minor flaws, the main features are adequately reported and supported, satisfying the requirements for a Band 6.0.

Coherence and Cohesion — Band 6.0

The response is arranged coherently into three distinct paragraphs, moving from an introductory overview to the first half of the process, and finally concluding with the remaining steps and the environmental cycle. Cohesive devices are employed to guide the reader through the sequence, using transitional phrases like 'To begin with', 'After harvesting', and 'Following this'. However, referencing and cohesion sometimes feel mechanical or slightly awkward, such as 'which is then harvest' and 'From these particles cellulose are being founded for futher process.' Paragraphing is logical, but overall cohesive progression can occasionally feel slightly disjointed due to grammatical friction.

Lexical Resource — Band 5.5

The student demonstrates an adequate range of vocabulary suitable for describing a technical process, incorporating terms such as 'harvesting', 'pre-processing', 'cellulose', 'sugars', and 'microbes'. However, there are numerous lexical, spelling, and word-formation errors throughout the response, including 'planning' instead of planting, 'carbondioxide', 'harvest' instead of harvested, 'grynder', 'founded' instead of found, and 'futher'. While these errors do not impede overall communication, they restrict the lexical score to a Band 5.5, as the control over less common vocabulary lacks precision.

Grammatical Range and Accuracy — Band 5.5

The text contains a mix of simple and complex sentence forms, attempting passive voice constructions such as 'is being produced', 'is being processed', and 'are being added'. While these attempts show variety, they are frequently mismanaged or overly reliant on continuous tenses where simple tenses would be more appropriate (e.g., 'is being produced' instead of is produced). There are persistent grammatical errors, including subject-verb agreement issues ('cellulose are being founded') and preposition errors ('in the present of'). Punctuation is generally acceptable, but grammatical inaccuracy creates noticeable strain for the reader at times.

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