Band 8.0 IELTS Writing Task 2 Model Answer

Overall Band Score: 8.0 · Cambridge IELTS 18 · 2026-09-08

IELTS Writing Task 2 question

The most important aim of science should be to improve people’s lives. To what extent do you agree or disagree with this statement? Give reasons for your answers and include any relevant examples from your own knowledge or experience.

 

Student answer (Band 8.0)

As we move into the 21st century, an increasing number of people have the notion that the primary purpose of scientific advancement should be to enhance human life. I strongly agree with this view, because scientific research is most valuable when it addresses human needs, although fundamental research should also be encouraged for long-term progress.

To begin with, science has the potential to revolutionise healthcare and prolong human life. Through medical research, numerous diseases can be diagnosed earlier, treated more effectively, and, in some cases, prevented altogether. Moreover, technological innovations have made healthcare more accessible and precise. For example, the development of vaccines and advanced diagnostic equipment has significantly reduced the impact of infectious diseases. Therefore, scientific discoveries that alleviate suffering and improve public health should arguably remain a central priority.

Furthermore, science can enhance living standards by addressing pressing global challenges. Renewable-energy technologies, efficient agricultural methods, and water-purification systems can help societies become more sustainable while meeting essential human needs. For instance, solar and wind power are increasingly being used to reduce dependence on fossil fuels and mitigate environmental damage. Such innovations not only benefit present generations but also safeguard resources for future populations.

Nevertheless, I believe that science should not be restricted exclusively to immediate human benefits. Pure scientific research, including investigations into space, physics, and genetics, may initially appear to have little practical value but can produce unforeseen breakthroughs in the future. The development of the internet, for instance, was rooted partly in scientific and technological research that later transformed communication and commerce.

In conclusion, although scientific exploration should remain broad and curiosity-driven, improving human welfare should be its foremost objective. Research that advances healthcare, sustainability, and quality of life offers tangible benefits, while fundamental discoveries should simultaneously be supported because their long-term applications cannot always be predicted.

AI examiner evaluation

Task Achievement / Task Response — Band 8.0

The response fully addresses all parts of the prompt. You have taken a clear position from the introduction and maintained it throughout the essay. The ideas are well-developed, particularly the distinction between immediate human needs and the long-term value of fundamental research. Each paragraph provides relevant examples, such as vaccines for healthcare and the internet for fundamental research, which effectively support your arguments. The conclusion synthesizes your position well, acknowledging the nuance of the topic while reaffirming your main stance. This is a comprehensive and well-structured response that meets all the requirements of the task.

Coherence and Cohesion — Band 7.5

The essay demonstrates a logical progression of ideas. Each paragraph has a clear central topic, and the transition between paragraphs is smooth, using effective cohesive devices such as 'To begin with', 'Furthermore', and 'Nevertheless'. The use of referencing is precise, and the internal structure of each paragraph is coherent. You have managed the flow of information skillfully, ensuring that the reader can easily follow your line of reasoning. The paragraphing is appropriate and contributes to the overall clarity of the argument.

Lexical Resource — Band 8.0

You demonstrate a wide and fluent range of vocabulary, which is used with precision. Phrases such as 'alleviate suffering', 'pressing global challenges', and 'curiosity-driven' show a sophisticated command of language. The word choices are natural and appropriate for an academic context. There are no noticeable errors in collocation or word choice, and the vocabulary is varied enough to maintain the reader's interest throughout the essay. The use of academic terminology is accurate and enhances the professional tone of the writing.

Grammatical Range and Accuracy — Band 8.0

The essay exhibits a wide range of grammatical structures, including complex sentences with subordinate clauses and conditional structures. The majority of sentences are error-free, and the control over punctuation and syntax is excellent. There are no significant grammatical errors that impede communication. Your use of modal verbs and passive voice is accurate and fits the formal register required for this task. The writing is highly accurate, showing a high level of grammatical control throughout.

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