Band 6.0 IELTS Writing Task 1 Model Answer

Overall Band Score: 6.0 · Cambridge IELTS 19 · 2026-10-20

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 diagram below delineates how a biofuel called ethanol is produced.

Overall, the diagram illustrates nine major procedure. After the major process is finished the ethanol will be ready.

In the beginning process Plants and trees grow by consuming energy from sunlight and carbon dioxide and move into harvesting process. The harvest will pre-process and become a component called Cellulose. In addition, to make ethanol the component called Cellulose have to be processed.

Once the Cellulose is processed, another component will be formed which is called Sugars. The diagram illustrates that the 'Sugars' component is the last process of making ethanol. However, there is a chemical or a component which is necessary to add it in 'Sugars' to make Ethanol and that chemical or component is called "Microbes". Consequently, after adding microbes in sugars the process of making Ethanol from Biofuel production is finished. Now the Ethanol is ready for various purposes like to supply it on various vehicles. For instance, Car, Trucks, Areoplane and other transport mediums. These transport mediums realease carbon dioxide from their silencer and that carbon dioxide mix in the air and same process goes on.

AI examiner evaluation

Task Achievement / Task Response: Band 6.0

You identify the main stages from plant growth through harvesting, pre-processing, cellulose, processing, sugars and the addition of microbes, and you also recognise the cycle linking transport use with carbon dioxide. This covers the central process, but some details are incomplete or unclear. The overview says there are “nine major procedure” and that ethanol is “ready,” without highlighting the diagram’s key feature: carbon dioxide from the vehicles returns to support plant growth. You mention this cycle only at the end, and the claim that emissions come from “their silencer” is not shown in the diagram. Also, sugars are an intermediate stage, not the last process, as your response suggests. A more accurate overview and clearer reporting of the recycling loop would strengthen the summary.

Coherence and Cohesion: Band 6.0

The response has a recognisable progression: an introduction and overview are followed by the early production stages and then the later stages and transport use. This makes the process generally understandable. However, the overview is vague, and the paragraphing does not clearly separate the production cycle from the final use and carbon-dioxide return. Some links are mechanical or confusing, particularly “In addition” and “However,” which do not express the relationships between the stages accurately. The reference to “the same process” at the end is also unclear because it does not specify that carbon dioxide returns to the plants. Organising the stages into a clearer sequence and using precise links such as “next,” “after this,” and “finally” would improve progression.

Lexical Resource: Band 5.5

You use relevant process vocabulary, including “harvesting,” “pre-process,” “Cellulose,” “Sugars,” and “Microbes,” so the reader can follow the subject. There is also some attempt to vary wording with phrases such as “various purposes.” However, several choices are inaccurate or unnatural for a process description: “major procedure,” “the harvest will pre-process,” and “transport mediums” do not express the intended meanings naturally. Spelling errors such as “Areoplane” and “realease” also reduce accuracy, while repeated use of “component” and “process” limits precision. Choose standard terms such as “stages,” “the harvested material is pre-processed,” and “modes of transport,” and check spelling carefully.

Grammatical Range and Accuracy: Band 5.5

You attempt both simple and more complex sentences, including clauses beginning “Once the Cellulose is processed” and “which is called Sugars.” The sequence remains understandable despite some grammatical errors. However, agreement and sentence construction are not consistently controlled: “nine major procedure” needs a plural noun, “Cellulose have to be processed” has a subject–verb agreement error, and “the harvest will pre-process” gives the material an incorrect grammatical role. The opening phrase “In the beginning process Plants and trees grow” also lacks clear sentence structure and punctuation. Use complete, clearly punctuated sentences and check agreement, articles and verb forms; for example, “The harvested material is pre-processed to produce cellulose.”

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