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Biodiversity, Ecosystems & ExtinctionL07
use_of_english

Use of English

Transformation, word formation and precision work in Cambridge C1 style.

50 minC1c1use_of_englishbiodiversity-ecosystems-extinctionbiodiversityextinctionecosystemsword formation

Lesson objectives

  • Improve grammatical precision and collocational control.
  • Practise exam-style transformations and word formation systematically.
  • Connect structure and lexis back to the unit theme of biodiversity, ecosystems & extinction.

Part 1 — Word formation

Instructions: Read the text below. Use the word in CAPITALS at the end of some of the lines to form a word that fits in the gap in the same line.

The rapid loss of biodiversity is one of the most _ (1) challenges facing our planet today. Many species are facing _ (2) extinction due to human activities, such as habitat destruction and overexploitation. The _ (3) of certain ecosystems could lead to a chain reaction, affecting even the most remote areas of the globe. Scientists argue that the _ (4) of natural habitats is the primary driver of this crisis. To prevent further _ (5) of wildlife, international cooperation is essential. We must find ways to promote the _ (6) of endangered species through protected areas. Without _ (7) action, the damage to our planet's delicate balance may become _ (8) to reverse.

  1. PRESS
  2. IRREVERSIBLE
  3. DISRUPTION
  4. DESTRUCTION
  5. DEPLETION
  6. PRESERVATION
  7. DECISIVE
  8. IMPOSSIBLE

Part 2 — Key word transformations

Instructions: Complete the second sentence so that it has a similar meaning to the first sentence, using the word given. Do not change the word given. You must use between three and six words, including the word given.

1. We planted more native trees so that the local ecosystem would be restored. | PURPOSE → We planted more native trees _ the local ecosystem to be restored. 2. He stayed quiet because he didn't want to disturb the nesting birds. | ORDER → He stayed quiet _ disturb the nesting birds. 3. The population of tigers has declined significantly; therefore, they are now critically endangered. | HENCE → The population of tigers has declined significantly, _ they are now critically endangered. 4. We must act now to prevent the extinction of these species. | LEST → We must act now _ these species become extinct. 5. The rainforest was cleared for farming, which resulted in a massive loss of biodiversity. | SO → The rainforest was cleared for farming _ massive loss of biodiversity. 6. They implemented strict laws to ensure that poaching would not continue. | THAT → They implemented strict laws _ poaching would not continue.

Answer key

  1. in order to
  2. in order not to
  3. hence
  4. lest
  5. so that there was a
  6. so that