Cover of the textbook Performer B2 - Workbook

The key answer of exercise 4

The key to exercise solutions in chapter Unit 7 - Science in action for the textbook Performer B2 - Workbook with authors Marina Spiazzi, Marina Tavella, Margaret Layton from Zanichelli

Question

Transform the underlined word into a verb using the correct suffix. Then use the verb to complete the second sentence so that it has a similar meaning to the first sentence.

Answer

  1. shorten
  2. popularise
  3. threaten
  4. specialise
  5. intensify
  6. demonstrate
  7. purify
  8. vaccinate


  1. The organisers are going to shorten the next edition of the festival.
  2. Medical TV series have popularised surgery.
  3. Some bacteria can threaten human life.
  4. Dr Brown specialises in heart and blood vessel diseases.
  5. The research on antiviral drugs intensified after a new wave of flu.
  6. During the workshop scientists will demonstrate how to mix chemicals.
  7. Hospitals have to purify the air in operating rooms to prevent infections.
  8. Countries are investing a lot of money to vaccinate the population.

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