Band 7.5 IELTS Writing Task 2 Model Answer

Overall Band Score: 7.5 · Cambridge IELTS 18 · 2026-08-13

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 7.5)

Science has played a crucial role in the development of modern society. Some people believe that its primary purpose should be to improve human life. I strongly agree with this view because scientific progress has the greatest value when it helps people live healthier, safer and more comfortable lives.

One major way in which science improves people's lives is through advances in healthcare. Scientific research has led to the development of vaccines, medicines and medical technologies that save millions of lives every year. For example, vaccines have helped control many deadly diseases, while modern diagnostic tools allow doctors to detect illnesses at an early stage. As a result, life expectancy has increased significantly in many countries. These achievements demonstrate how science directly benefits society.

In addition, science contributes to better living standards by making everyday life easier and more efficient. Technological innovations such as smartphones, the internet and modern transportation systems have transformed communication, education and business. People can now access information instantly, work remotely and travel more conveniently than ever before. These developments have increased productivity and improved the quality of life for countless individuals.

However, some argue that science should also focus on expanding human knowledge, even when there are no immediate practical benefits. Research in fields such as astronomy and theoretical physics may not directly improve daily life, but it often leads to discoveries that benefit society in the long term. Nevertheless, I believe that the ultimate justification for scientific research is its potential to contribute to human well-being, whether directly or indirectly.

In conclusion, I strongly agree that improving people's lives should be the most important goal of science. Although the pursuit of knowledge is valuable, scientific progress is most meaningful when it helps solve real-world problems and enhances the quality of life for humanity.

AI examiner evaluation

Task Achievement / Task Response — Band 7.5

The response fully addresses all parts of the prompt. You clearly state your position in the introduction and maintain it consistently throughout the essay. Each paragraph is well-developed with relevant examples, such as the mention of vaccines and diagnostic tools in the healthcare paragraph, and the reference to smartphones and the internet in the technology paragraph. You also acknowledge the counter-argument regarding theoretical research, which demonstrates a balanced approach and adds depth to your argument. The conclusion effectively synthesizes your main points and reinforces your initial stance.

Coherence and Cohesion — Band 7.5

The essay is logically organized with a clear progression of ideas. Each paragraph has a central theme, and the transition between paragraphs is smooth. You use a variety of cohesive devices effectively, such as 'One major way', 'In addition', 'However', and 'In conclusion', which help guide the reader through your argument. The referencing is clear, and the paragraphing is used appropriately to separate distinct ideas. The flow of the essay is natural and easy to follow, meeting the requirements for a high band score in this criterion.

Lexical Resource — Band 7.0

You demonstrate a good range of vocabulary that is appropriate for an academic essay. Phrases like 'crucial role', 'scientific progress', 'ultimate justification', and 'enhances the quality of life' show a level of sophistication. While the vocabulary is accurate and fits the context well, it could be slightly more varied to reach the highest band. There are no significant errors in word choice or collocation, and your language is precise enough to convey your ideas clearly and effectively throughout the response.

Grammatical Range and Accuracy — Band 7.5

The essay displays a good command of grammatical structures. You use a mix of simple and complex sentences effectively, such as 'Scientific research has led to the development of vaccines, medicines and medical technologies that save millions of lives every year.' The punctuation is accurate, and there are very few, if any, grammatical errors. The sentence structures are varied, which helps maintain the reader's interest and demonstrates a strong control over English grammar. The writing is clear, fluent, and error-free for the most part.

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