Cover of the textbook On Screen B1+ - Student's Book

The key answer of exercise 2

The key to exercise solutions in chapter 5a - Reading for the textbook On Screen B1+ - Student's Book with authors Virginia Evans and Jenny Dooley from Express Publishing

Question

  1. Check the meaning of these phrases in the Word List.
  2. The phrases in Ex. 2a appear in the text. What do you think the text is about? Listen and read to find out.

Answer

  1. power cut: when the electricity supply ceases temporarily.; complete darkness: without any light; light pollution: when there is too much light in the atmosphere; streetlights shine: when lights on the street give light; security lights flash on and off: when lights on buildings to deter burglars turn on and off many times; wasting energy: using too much energy unnecessarily; affects wildlife: has an effect on animals; get confused: to become unsure; sleep patterns get disrupted: when somebody's usual sleeping routine is disturbed; dim streetlights: to make the streetlights shine less brightly; switch off unnecessary lighting: to turn off lights that are not needed; low-energy bulbs: light bulbs that use less energy
  2. I think the text is about how much light we use unnecessarily, what the effects are, and what we can do about it.

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