Band 5.0 IELTS Writing Task 1 Model Answer

Overall Band Score: 5.0 · Cambridge IELTS 19 · 2026-11-01

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 flow chart illustrate the procedure of produving ethanol naturally.apart from first plants and trees grow ,through sunlight and carbon dioxide and crops ,occurs at harvesting stage.

by pre-processing it will be converted into cellulose,which can be processed in industries to make a complete sugar abstracts.by adding some microbes the sugar abstracts converted into ethanol. main source of fuel specially E20 petrol , using in vehicals for transportaion of goods or individuals to facilitate the daily routine lifes.

burning of ethanol, fumes comes out from vehicals ,contains the carbon dioxide and widespread into the air.increasing this activity will harmful for enviornment whereas, will also helpful for plants as initial stage of farming.

in my conclusion, the process is as much as effect to the enviornment or helpful to grown plants with carbon dioxide too.but it should be in balanced to well maintain both.

AI examiner evaluation

Task Achievement / Task Response: Band 5.0

You identify several central stages, including plant growth, harvesting, pre-processing, conversion to cellulose and sugars, and the addition of microbes to produce ethanol. You also recognise the cycle linking carbon dioxide from transport back to plant growth. However, the response only partially covers the diagram: it does not clearly describe the three transport modes, and it adds unsupported claims about E20 petrol, goods and individuals, and the effects of the process on the environment. The overview is also unclear because the conclusion shifts to whether the process is “helpful” or harmful rather than summarising the production cycle. The response is 143 words, below the required 150. Describe the stages and the recycling loop objectively, without adding opinions or outside information.

Coherence and Cohesion: Band 5.5

There is some organisation: the response broadly follows the production sequence and then discusses carbon dioxide and the cycle. Linking expressions such as “by pre-processing,” “by adding some microbes,” and “in my conclusion” help signal relationships. However, the progression is not consistently clear. The opening sentence is difficult to follow, and the shift from ethanol production to E20 petrol and transport uses, then to environmental effects, interrupts the process description. The final paragraph repeats the carbon-dioxide point without clearly consolidating the main stages. Use separate paragraphs for an overview and the sequential stages, and connect each stage with precise transitions such as “next,” “after this,” and “finally.”

Lexical Resource: Band 5.0

You attempt vocabulary relevant to the process, including “pre-processing,” “cellulose,” “microbes,” and “carbon dioxide,” which helps communicate the topic. However, the range is limited and several inaccurate or awkward choices make parts difficult to understand, such as “sugar abstracts,” “complete sugar,” and “fumes comes out.” Spelling errors, including “produving,” “vehicals,” “transportaion,” and “enviornment,” also reduce clarity. Some expressions, such as “daily routine lifes” and “balanced to well maintain,” are not natural in this context. Aim for accurate process vocabulary and standard collocations, and check spelling carefully; for example, describe sugars being produced and carbon dioxide being released.

Grammatical Range and Accuracy: Band 5.0

The response attempts to connect ideas in longer sentences, for example, “by pre-processing it will be converted into cellulose, which can be processed in industries,” but control is inconsistent. Errors in sentence structure, agreement, articles, and verb forms occur frequently: “the flow chart illustrate,” “fumes comes out,” and “the sugar abstracts converted into ethanol” are examples. Several sentences also lack clear grammatical links, particularly the opening and the final sentence, making the intended meaning harder to follow. Punctuation and capitalisation are inconsistent, including missing spaces after full stops and commas. Build accuracy first with clear subject–verb sentences, then combine stages using correctly formed passive structures, such as “The material is converted into cellulose.”

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