Cover of the textbook English File Advanced - Student's Book

The key answer of exercise 1 - Part 1

The key to exercise solutions in chapter Colloquial English 8 & 9 for the textbook English File Advanced - Student's Book with authors Christina Latham-Koenig, Clive Oxenden, Jerry Lambert and Kate Chomacki from Oxford University Press

Question

  1. -
  2. Watch Part 1 of the interview. What is an arthropod and why does George McGavin think they are so important?
  3. Now watch again. Answer the questions.

Answer

b)

  • Arthropods are animals with lots of hinged legs (legs with joints in them) and hard outsides, e.g. crustacea, spiders, and insects.
  • They are important because they make up three quarters of all animals in the world. / They are the biggest animal group in the world.

c)

  1. Examples of animals with a spine: bats, cats, rats, mammals, amphibians, fish, birds. He thinks they are less important because they make up only 2.9% of all species.
  2. When he was on a field trip at university (for his first degree). Ants caught his attention.
  3. Normally, new species are named after the country they are found in or how they look. He has five named after him.
  4. Their habitat is being destroyed and they are disappearing very quickly, and we may never even discover some of them.