Level 4Science

What the Coral Reef Teaches Us

Grammar: Non-defining relative clauses

A Level 4 English lesson exploring science.

sciencenon-defining relative clauses

What's in this lesson

A Level 4 (upper intermediate) ESL lesson on science, practising non-defining relative clauses. The worksheet has a reading, target vocabulary and discussion questions.

From the reading: What the Coral Reef Teaches Us

Off the coast of Australia, the Great Barrier Reef stretches for more than 2,300 kilometres — the largest living structure on Earth. It covers less than 0.1% of the ocean floor, yet it supports roughly 25% of all marine species. Scientists have spent decades trying to explain this extraordinary generosity. The answer, it turns out, is not competition. It is service.

Vocabulary

  • cover completely
  • pushed out
  • shared
  • among
  • by
  • for
  • inside

Discussion questions

  1. Have you ever felt genuinely well looked after by an organisation?
  2. Is it possible to give something without expecting anything back?
  3. What makes a relationship between two people actually work long-term?

What the Coral Reef Teaches Us

Grammar: Non-defining relative clauses

What's in this lesson:

Full lesson plan with reading, grammar, vocabulary, and discussion.

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