IELTS Listening practice: Is recycling worth it?

IELTS Listening Practice

General IELTS Listening Practice

In this listening you will practice:

  • following fast speech
  • picking out details
  • This listening is from 60-Second Science

    How to use this task:

    • Look at the key words and phrases first
    • Listen 1 time and write your answers on a piece of paper
    • Check the answers when you think you have them
    • If you can’t understand one section, read and listen to the Listening Audio Script several times.

    Key words:

    Before you listen, look at these words and check you understand what they mean.

  • discarded
  • conveyor belts
  • salable
  • aluminum
  • petrochemicals
  • degrade
  • cost-benefit analysis
  • dumping
  • music to the ears
  • Instructions
    Listen to the talk about recycling. Answer the questions with SHORT NOTES.

    Comprehension questions:

    1. How is the trash sorted?
    2. Why is aluminum worth recycling?
    3. How much cheaper is recycling aluminum than producing it from scratch?
    4. When are plastics sometimes not worth recycling?
    5. Currently, recycling efforts in the US are equivalent to what?
    1. mechanically and manually
    2. it does not lose quality
    3. 95% (it uses 5% of the same energy)
    4. when the oil price is low
    5. taking 38 million cars of the road
    At Brooklyn’s recycling depot, discarded metal and plastic gets bulldozed into a large mound. The stuff is then scooped onto the first of a series of rising conveyor belts, from which the trash is sorted through means both mechanical and manual.

    All that effort produces a variety of salable products, from metals to paper fibers. But is it worth it?

    In the case of an aluminum can the answer is an unqualified yes. Such a can can be recycled endlessly with no loss of quality. And recycling a can uses less than five percent of the energy that it takes to refine bauxite ore into fresh aluminum.

    Recycling is worth it when it comes to all metals, though we’re better at recycling aluminum than say neodymium. In principle it could work for plastic, too. But because plastic is made from petrochemicals, low oil prices can make it cheaper to just dump old plastic and manufacture new. And plastics degrade as they’re recycled, as does paper.

    That said, a simple cost-benefit analysis does not correctly measure the environmental costs of dumping plastics or cutting down more trees for paper products. The EPA suggests that recycling in the U.S. reduces the same amount of greenhouse gas pollution as taking more than 38 million cars off the road.

    The sound of recycling may prove music to the ears of future generations.

    —David Biello

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    • What did you find most challenging about it?
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