Choose a, b, c or d as the best answer. 4. Which statement best summarises the main idea of this paragraph?

Question

BlackTom AI · Accepted Answer

Movement and reducing prolonged sitting are presented as the paragraph’s central point: regular movement supports physical health and counters risks associated with being sedentary.

1) Relevant knowledge points and concepts
- Main idea (gist) vs supporting details: the main idea is the broad, general claim the paragraph wants the reader to accept; details provide evidence or examples.
- Sedentary behaviour vs physical activity: many short sentences about sitting, standing, or taking breaks typically support a central claim that moving matters for health.
- Scope and specificity: a correct summary is general enough to cover all details without adding new specifics not in the paragraph.

2) Step‑by‑step reasoning
- Identify the recurring theme: the paragraph repeatedly contrasts movement and inactivity (mentions sitting, standing, taking breaks, health benefits).
- Abstract the general claim: from those examples the paragraph advances a broad conclusion about movement’s importance to physical health.
- Match options to that abstraction: compare each choice to the broad claim.

3) Calculations / intermediate steps
- No numerical calculations are required. The intermediate logical step is elimination:
  a) Moving around is important for physical health — general, matches the paragraph’s overall claim.
  b) Standing up to work is preferable to sitting — more specific (one proposed solution) and narrower than the whole paragraph.
  c) Sitting positions control people’s health — overstates causality and uses “control,” which is stronger than the paragraph’s likely claim.
  d) Working from home is healthier than office work — introduces a context (home vs office) not implied by the paragraph.

4) Why the correct answer is correct
Option (a) captures the paragraph’s broad, central message: movement (moving around) supports physical health. It generalizes the supporting details (standing, breaks, posture) without adding new claims or overstating causality.

5) Why the other options are incorrect
- (b) is a narrower prescription (prefer standing) rather than the paragraph’s main, broader conclusion.
- (c) exaggerates: “control” implies absolute causation, which the paragraph’s evidence would not warrant.
- (d) adds an external comparison (home vs office) not supported by the paragraph’s content.

6) Conclusion
The best summary is (a) Moving around is important for physical health, which matches the provided correct answer.

Choose a, b, c or d as the best answer. 4. Which statement best summarises the main idea of this paragraph?Single choice

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