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English Refresher · CEFR B2 · Unit 5

Environment & Sustainability

Define and describe nature with relative clauses. Practice, check your answers, and study the flashcards.

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Speaking

Describe Nature

What to do: Work in pairs. Talk about nature and conservation. There is no score — just speak and listen.
Audio 1Listen to an example
Listen to someone describe a place they love, then describe yours.

Talk about it

  • Describe a wild place near you with a relative clause: "It's a place where…"
  • Name an animal that is endangered. Why is it at risk?
  • Do you think nature can recover if we protect it? Why?
Featured Reading

The Comeback

Read the full interactive article on nature's recovery and do the comprehension quiz.

Read it →
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Reading

The Cat That Came Back

What to do: Read this short extract from the unit article. Then answer the questions and tap Check Answers. (Read the full article using the link above!)

The Iberian lynx is a wild cat that lives in Spain and Portugal. Twenty years ago, it was one of the world's most endangered species: only about 100 remained.

Then conservationists who protected its habitat and brought back the rabbits it eats turned the story around. Today there are over 2,000 lynx — a recovery so strong that it is no longer on the edge of extinction.

1. About how many lynx were left at the lowest point?
2. What did the conservationists protect to help the lynx?
3. How many Iberian lynx are there now?
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Listening

A Class Project

What to do: Listen two times. Then complete the sentences and answer the questions.
Audio 2Nina and Theo discuss their projects

Nina: I'm doing my project on the Iberian lynx, which almost went extinct.

Theo: The cat that lives in Spain? I read its numbers have recovered a lot.

Nina: Exactly. There were only about 100 left, but now there are over 2,000.

Theo: That's amazing. What helped them?

Nina: Conservationists who protected their habitat and brought back rabbits, which they eat.

Theo: Clever. I'm writing about beavers, which have returned to Portugal after centuries.

Nina: Beavers are the animals that build dams, right?

Theo: Yes, and the dams create wetlands where other species can live.

Nina: Nature is amazing when we give it a chance.

1. Nina's project is on the Iberian ______.
2. There were only about 100 left, but now there are over ______.
3. Theo is writing about ______, which have returned to Portugal.
4. What do beavers build?
5. What helped the lynx recover?
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Grammar

Relative Clauses

What to do: Complete each sentence with the correct relative pronoun: who, which, that, where, or whose.
1. The lynx, ______ was nearly extinct, has recovered. (non-defining — animal)
2. A biologist is someone ______ studies living things. (person)
3. A wetland is a place ______ many species live. (place)
4. Rewilding is a method ______ brings nature back. (thing)
5. We met a scientist ______ research saved the species. (possession)
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Word Order

Build the Sentence

What to do: Tap the words in the correct order. Tap a word in your answer to put it back. Then tap Check Answers.

1.

2.

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Writing

An Awareness Article

What to do: Write a short awareness paragraph (about 80–100 words) about a species or a local nature issue. Use relative clauses. There is no automatic score — use the checklist.
Example: "The Iberian lynx, which once almost disappeared, is one of conservation's greatest success stories. It is a wild cat that lives in Spain and Portugal, where its habitat had been destroyed. Scientists who protected the land and brought back rabbits, which the lynx eats, helped its numbers grow from about 100 to over 2,000. It proves that nature, which is more resilient than we think, can recover when we give it a chance."
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Vocabulary

Flashcards

What to do: Tap a card to reveal the meaning and an example. These are the key words for this unit and the reading.
biodiversitynountap to reveal
the variety of living things in a place"Forests are rich in biodiversity."
an ecosystemnountap to reveal
a community of living things and their environment"A coral reef is a fragile ecosystem."
rewildingnountap to reveal
restoring nature and letting it manage itself"Rewilding brought the beavers back."
an endangered speciesnountap to reveal
a type of animal or plant at risk of dying out"The lynx was an endangered species."
a habitatnountap to reveal
the natural home of an animal or plant"Wetlands are an important habitat."
conservationnountap to reveal
the protection of nature and wildlife"Conservation saved the elephants."
to thriveverbtap to reveal
to grow and do very well"Wildlife thrives in the new wetland."
to offsetverbtap to reveal
to balance out harm, e.g. emissions"They offset flights by planting trees."
renewable energynountap to reveal
energy from sources that don't run out"Solar is renewable energy."
resilientadjectivetap to reveal
able to recover quickly from difficulty"Nature is more resilient than we think."

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