Band 5.0 IELTS Writing Task 1 Model Answer

Overall Band Score: 5.0 · Cambridge IELTS 19 · 2026-10-14

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 given process diagram illustrate the mass manufacturing of carbon dioxide . The process joint venture of human machines which work togather for a singal final product .

Overall , it can be seen the mass producation of carbon dioxide is carried out by the more then five distinctive steps . In additionally , the process start Energy plants and tree trees grow and end of the Ethanol and caron dioxide . Furthermore all these steps is very important and the connected with each other .

Talking about initial step , the first step is energy ( sunlight + carbon dioxide ) , then following by plants and trees grow , come then harvesting , pre - orocessing , and then cellulose . Furthermore , all these process complete almost half of the total procdure .

Pouring some light on finalizing step , the final step is very critical to get the final product . Furthermore , the final product is obtained by processing , Sugars , Microbes added , Ethanol and the carbon dioxide . Hence , a final product is obtained by different phases the mass manufacturing of Ethanol and carbon dioxide.

AI examiner evaluation

Task Achievement / Task Response: Band 4.5

The response identifies a sequence of stages, including plant growth, harvesting, pre-processing, cellulose, processing, sugars, microbes and ethanol. However, the task is only minimally addressed because the central process is repeatedly misidentified as the “mass manufacturing of carbon dioxide,” rather than ethanol production. The overview also says the process ends with ethanol and carbon dioxide, but misses the key cycle: ethanol is used by transport, which releases carbon dioxide that returns to support plant growth. Several stages are listed without explaining their relationships, and “human machines” is not a feature shown in the diagram. To improve, state accurately what the diagram produces, summarise its circular nature, and describe how the stages connect from plant material to fuel and back to plant growth.

Coherence and Cohesion: Band 5.5

The response has a recognisable paragraph structure: an introduction and overview are followed by early and later stages. Sequencing expressions such as “Overall,” “initial step,” and “finalizing step” help the reader follow the intended order. However, progression is weakened by repeated, vague statements, including “all these steps is very important” and “a final product is obtained by different phases.” Some linking phrases are used mechanically, especially the repeated “Furthermore,” while the final paragraph does not clearly connect ethanol to transport or carbon dioxide returning to plants. Organise the stages into a clear beginning-to-end account, use links that show actual process relationships, and avoid repeating general comments in place of information.

Lexical Resource: Band 5.0

The response attempts some task-related vocabulary, including “harvesting,” “cellulose,” “processing,” “sugars,” and “Ethanol,” so the reader can recognise several stages. However, the range is limited and word choice is often inaccurate or unnatural: “mass manufacturing of carbon dioxide” misrepresents the process, and “process joint venture of human machines” does not convey a clear meaning. Spelling errors such as “togather,” “singal,” “producation,” and “caron” also make the account less clear. Some phrases, including “Pouring some light on finalizing step,” are unsuitable for a process description. Use precise process vocabulary and check spelling; prefer direct terms such as “stage,” “converted,” and “released” where they accurately describe the diagram.

Grammatical Range and Accuracy: Band 4.5

There are attempts to use longer sentences and sequencing clauses, for example, “then following by plants and trees grow, come then harvesting,” but these structures are often incomplete or incorrectly formed. Basic agreement and verb-form errors occur throughout: “diagram illustrate,” “the process start,” and “all these steps is.” Articles and sentence construction are also unreliable, as in “the process joint venture of human machines,” which lacks a clear grammatical relationship between its ideas. Punctuation spacing and inconsistent capitalisation further affect readability. Build accurate simple sentences first, such as “Plants and trees grow, and they are then harvested,” before combining stages. Check subject–verb agreement, use complete clauses, and punctuate each sentence clearly.

See this exact question answered at other band scores. The same prompt compared across bands.

Browse more IELTS Writing model answers or get your own writing scored by the same AI examiner.