Topic Sentence

July 9, 2026
A topic sentence is the first sentence of a paragraph that introduces its main idea, helping the reader understand what the paragraph will discuss.
Topic Sentence
IELTS Writing

A topic sentence is typically the opening sentence of a paragraph. It clearly expresses the main idea or focus of that paragraph, guiding the reader on what to expect. In IELTS Writing Task 2, a well-written topic sentence helps organize your essay and makes your argument easy to follow.

Importance in IELTS Writing

  • Coherence and Cohesion: The IELTS Writing band descriptors highlight the need for logically organized information. Topic sentences help structure your essay, making each paragraph distinct and relevant to your thesis.
  • Task Response: Clear topic sentences ensure that each paragraph addresses a specific aspect of the essay question. This demonstrates to the examiner that you are answering all parts of the task.
  • Reader Guidance: Topic sentences act as signposts, helping the reader understand the progression of your ideas and arguments.

Example

  • Essay question: "Some people believe that the internet has improved communication. To what extent do you agree or disagree?"
  • Sample topic sentence: "The internet has significantly enhanced the speed and convenience of communication in both personal and professional contexts."

This topic sentence introduces the main idea of the paragraph and signals that the following sentences will provide supporting details and examples about how the internet has improved communication.

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Topic Sentence | IELTS Writing Prep