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Practice Reading: Re-order Paragraphs ID: #3845 Light
Instructions ›
The text boxes in the left panel have been placed in a random order Restore the original order by dragging the text boxes from the left panel to the right panel.
* Move & order all paragraphs in the right field

Paragraph list

Recent years have seen the field of optics be transformed with the development of new materials that can manipulate light in ways that cannot be done in nature.
The world around us is bathed in light, providing the input to our eyes with which we try to make sense of the surroundings.
With such diversity the field of optics, the science of light, naturally spans a similarly broad range of application and technology - from communication, sensing and imaging, and precision measurements, to making observations of the distant cosmos with exquisite clarity.
These so-called metamaterials are bending the rules of light and providing the prospect of new functional optical technology.
However, light is not limited to the narrow band of wavelengths we can see, but extends across a broad spectrum including long wavelength radio waves down to short wavelength x-rays and gamma-rays.

Your order

Result:

AI explanationShows the answer. Tap to open.

First sentence: Why this is the first line? This paragraph is the first sentence because it introduces the main topic of light and how we perceive it. It sets up the theme without going into details. This follows the rule of Topic Sentence. Why other lines are not chosen? The other paragraphs do not qualify as the first sentence. For example, Paragraph 2 starts with 'However,' which is a conjunction. Paragraph 3 uses 'With such diversity,' which refers back to something not yet mentioned. Paragraph 4 talks about 'Recent years,' which assumes prior knowledge. Paragraph 5 starts with 'These so-called,' which also refers back to something not yet introduced.

Concluding sentence: Why this is the last line? This paragraph is the last sentence because it wraps up the discussion about new materials in optics. It provides a conclusion about the future of optical technology, following the rule of Conclusive Words.

Paragraph pairs:

  • Pair 1 (Paragraph 1 → Paragraph 2): Paragraph 2 connects to Paragraph 1 using the Connector Strategy. The word 'However' shows a contrast to the idea of light being perceived, expanding on the topic of light by discussing its range.
  • Pair 2 (Paragraph 2 → Paragraph 3): Paragraph 3 follows Paragraph 2 logically using the Broader to Specific Strategy. It takes the broad idea of light's spectrum and connects it to the diverse applications in optics, showing how the topic expands.
  • Pair 3 (Paragraph 3 → Paragraph 4): Paragraph 4 connects to Paragraph 3 using the Logical Order strategy. It continues the discussion of optics by explaining recent developments in the field, showing a clear progression from the broad applications to specific advancements.
  • Pair 4 (Paragraph 4 → Paragraph 5): Paragraph 5 follows Paragraph 4 using the Object Subject Strategy. The 'new materials' mentioned in Paragraph 4 are referred to as 'These so-called metamaterials' in Paragraph 5, showing a clear connection between the two.

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