Band 5.0 IELTS Writing Task 1 Model Answer

Overall Band Score: 5.0 · Cambridge IELTS 19 · 2026-09-16

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 5.0)

The diagram below illustrate the process of ethanol that how it produced. It shows entire method of ethanol starting from Plants and trees grow till the ethanol refuel into cars and become carbon dioxide

In the beginning of the process when plants grown, it will harvested by the farmers. It will then transport for Pre processing by which Cellulose made. The cellulose will further process and become sugars. In that Microbes added and finally it become Ethanol.Ethanol is the high quanlity of fuel used specially in planes and other transportation.

These transportation release Carbon dioxide when it runs. The released Carbon added with sunlight and become Energy for plants and trees which helps them to grown more faster.

The whole process shows that its is unstopable method as its started from cutting the trees and with alot of effort it become the biofuel Ethanol with later become Carbon dioxide and again prove to be energy for Plants.

AI examiner evaluation

Task Achievement / Task Response — Band 5.0

The response attempts to describe the process of ethanol production shown in the diagram, covering the main stages from plant growth through harvesting, pre-processing, and processing to sugars and microbes, culminating in the creation of ethanol and its use in transportation. However, there are significant omissions and inaccuracies in reporting the complete cycle. For instance, the student states that the released carbon dioxide becomes energy for plants, but the diagram specifically shows carbon dioxide combining with sunlight and energy to facilitate plant growth in a continuous cycle. Furthermore, the overview is rather rudimentary. Overall, the task is addressed only partially, warranting a band 5.0.

Coherence and Cohesion — Band 5.0

The response has some organizational structure, dividing the text into an introduction, body paragraphs describing the sequence, and a concluding summary. However, the overall progression is weakened by repetitive phrasing and inadequate or faulty cohesive devices (e.g., 'In that Microbes added and finally it become Ethanol'). Paragraphing is attempted, but the grouping of ideas is somewhat disjointed. Referencing is occasionally unclear, making it harder for the reader to follow the cyclical flow smoothly. These issues place the response firmly at band 5.0.

Lexical Resource — Band 5.0

The vocabulary used is limited and repetitive, with noticeable errors that occasionally cause difficulty for the reader. Examples include spelling and word choice errors such as 'quanlity' instead of 'quantity', 'unstopable' instead of 'unstoppable', and awkward phrasing like 'ethanol refuel into cars'. While the student attempts some less common terms like 'transportation' and 'cellulose', the lack of precision and frequent lexical inaccuracies mean the vocabulary is minimally adequate for the task, fitting the band 5.0 descriptors.

Grammatical Range and Accuracy — Band 4.0

The essay displays a very limited range of sentence structures, relying mostly on simple sentences with frequent grammatical errors. There are numerous issues with verb forms, subject-verb agreement, and missing articles (e.g., 'when plants grown, it will harvested', 'Cellulose made', 'with later become Carbon dioxide'). Complex structures are rare and often faulty. These frequent errors cause strain for the reader and impede comprehension at times, which aligns with a band 4.0 descriptor.

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