What is the best invention of last 100 years; the computer, antibiotics, airplane, and explain why?
Sample Response
Science and technology have advanced many folds in the last 100 years. It has progressed human lives in all spheres. Among all the inventions, the most revolutionary one is the advent of computers. In fact, Computers have become indispensable for communication, education, banking, travelling, health care, aviation industry, and any other industry one can think of.
IELTS Writing Correction
- 1. Fix quantity expression Original: many folds Suggested revision: greatly Why it matters: “Many folds” is not an idiomatic way to describe the degree of advancement.
- 2. Remove redundant pronoun Original: the most revolutionary one Suggested revision: the most revolutionary Why it matters: The noun “invention” is already understood, so “one” is unnecessary.
- 3. Name the invention Original: advent Suggested revision: invention Why it matters: “Invention” states the selected technological development more directly than “advent.”
- 4. Use lowercase noun Original: Computers Suggested revision: computers Why it matters: A common noun is not capitalised after a comma.
- 5. Add article Original: aviation industry Suggested revision: the aviation industry Why it matters: The singular industry name requires the definite article in this list.
- 6. Use formal phrasing Original: any other industry one can think of Suggested revision: virtually every other industry Why it matters: This replacement expresses the broad scope more concisely and formally.
- 7. Sentence rewrite Original: It has progressed human lives in all spheres. Suggested revision: This progress has improved human life in every sphere. Why it matters: The rewrite corrects the unclear pronoun and the unnatural use of “progressed” as a transitive verb.
Suggested Rewrites
- many folds greatly
- the most revolutionary one the most revolutionary
- advent invention
- Computers computers
- aviation industry the aviation industry
- any other industry one can think of virtually every other industry
Why this response received Band 5.5
The response states a clear choice and briefly indicates the computer's broad usefulness, so its central position is easy to identify. However, at only 56 words, it is drastically underdeveloped and offers a list of applications rather than explaining why computers are the best invention; the priority is to build a full essay with developed reasons, specific examples, and a supported conclusion.
IELTS Writing Criteria Scores
Task Response
A clear preference for computers is stated, but the answer is extremely short and its sole supporting idea is only listed rather than developed.
Explain two distinct reasons for the choice in full body paragraphs and support each with a specific example.
Coherence and Cohesion
The four sentences follow a logical movement from background to position and support, although the response is too brief to demonstrate sustained progression or paragraphing.
Organise a complete response into an introduction, clearly focused body paragraphs, and a conclusion linked by purposeful transitions.
Lexical Resource
Vocabulary is reasonably varied and includes relevant terms such as "revolutionary" and "indispensable," but several collocations are awkward.
Use natural combinations such as "advanced many times over," "improved human life," and "the aviation industry."
Grammatical Range and Accuracy
Most sentence structures are controlled and meaning remains clear, though reference, capitalisation, and article use contain errors.
Check pronoun reference and articles carefully, and avoid unnecessary capitalisation of common nouns such as "computers."
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IELTS Writing Task 2
What is the best invention of last 100 years; the computer, antibiotics, airplane, and explain why?
Your response
Write the task yourself, then compare your choices with the annotated response.