Band 6.0 IELTS Writing Task 1 Model Answer

Overall Band Score: 6.0 · Cambridge IELTS 19 · 2026-10-11

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 provided picture illustrates the production process of a biofuel also known as ethanol.

Overall, this whole process is comprised of eight different steps: growing plants, harvesting, pre-processing, cellolose making, processing, sugar addition, microbes addition and transporation.

To begin with, initially trees and plants grow with the help of energy and that comes from absorbing two things: sunlight and carbon dioxide. Then, they are harvested with the help of a man and machine and pre-processed in the form of some seeds, cellulose are made once pre-processing is done. Furthermore, cellulose are further processed at different factories , as a result, sugar is made from them.

Moreover, microbes are added into sugar, consequently, Ethanol is produced. Last but not the least, manufactured ethanol is shipped through three transpotation mediums which are: Cars, trucks and aeroplanes. Hence, carbon dioxide is released.

AI examiner evaluation

Task Achievement / Task Response: Band 5.5

You identify the subject and describe the main production sequence, from plant growth through processing and the addition of microbes to ethanol and transport. However, the overview is incomplete: calling this “eight different steps” omits the carbon-dioxide return that makes the diagram a cycle, and “transportation” is not a production step. Some details are also inaccurate or unclear, such as saying pre-processing produces “some seeds”; the diagram shows cellulose, not seeds. You mention carbon dioxide being released but do not explain that it returns to the plants. The response is also 11 words below the required minimum. To develop the report more fully, give a clear overview of the cycle and describe the carbon-dioxide link accurately.

Coherence and Cohesion: Band 6.0

The response has a recognisable progression: an introduction, an overview, and a description moving from plant growth to transport. Sequencing phrases such as “To begin with,” “Furthermore,” and “Moreover” help the reader follow the stages. However, some linking is mechanical or imprecise: “Hence” does not clearly show how carbon dioxide released by transport connects back to plant growth, and “Last but not the least” is an awkward transition in a process report. The long middle sentence also combines several stages, making the relationships between pre-processing, cellulose, and processing less clear. Use separate sentences for distinct stages and refer explicitly to the cycle’s return arrow to improve cohesion.

Lexical Resource: Band 5.5

You use relevant process vocabulary, including “harvested,” “pre-processed,” “cellulose,” “microbes,” and “released,” so the reader can generally understand the topic. There are also attempts at more formal phrasing, such as “The provided picture illustrates.” However, several word choices or forms are inaccurate or unnatural: “cellolose making,” “sugar addition,” and “microbes addition” do not describe the labelled stages precisely, while “shipped” suggests delivery rather than the diagram’s use of ethanol as fuel. Spelling errors in “transpotation” and “cellolose” also reduce accuracy. Prefer the diagram’s precise terms—“cellulose,” “sugars,” and “microbes are added”—and use “used by vehicles” for the final stage.

Grammatical Range and Accuracy: Band 6.0

You use a mix of simple and complex sentences, including a cause-and-result structure in “as a result, sugar is made from them,” and most of the process remains understandable. Some grammatical errors persist, particularly with agreement and sentence construction. For example, “cellulose are made” and “Cellulose are further processed” use a plural verb with an uncountable singular noun; “sugar is made” shows the appropriate agreement. The phrase “energy and that comes from absorbing two things” has an unclear clause structure, and the comma before “as a result” should be replaced with stronger punctuation or a conjunction. Aim for accurate subject–verb agreement and clearer sentence boundaries while retaining your range of sentence forms.

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