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Reading answers with explanations

IELTS · Part 1 · Cambridge 12 — Test 4

The history of glass: Reading answers

Answers to questions 1–13 (13 in all), each with why it is right.

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Read the whole passage and answer in the exam interface, timed as on the day.

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The passage opens

From our earliest origins, man has been making use of glass. Historians have discovered that a type of natural glass - obsidian - formed in places such as the mouth of a volcano as a result of the intense heat of an eruption melting sand - was first used as tips for spears. Archaeologists have even found evidence of man-made glass which dates back to 4000 BC; this took the form of glazes used for coating stone beads. It was not until 1500 BC, however, that the first hollow glass container was made by covering a sand core with a layer of molten glass. Glass blowing became the most common way to make glass containers from the first century BC. The glass made during this time was highly…

Answers 1–13

  1. 1

    obsidian Note completion

  2. 2

    spears Note completion

  3. 3

    beads Note completion

  4. 4

    impurities Note completion

  5. 5

    Romans Note completion

  6. 6

    lead Note completion

  7. 7

    clouding Note completion

  8. 8

    taxes Note completion

  9. 9

    In 1887, HM Ashley had the fastest bottle-producing machine that existed at the time.

    TRUE True / False / Not Given

  10. 10

    Michael Owens was hired by a large US company to design a fully-automated bottle manufacturing machine for them.

    FALSE True / False / Not Given

  11. 11

    Nowadays, most glass is produced by large international manufacturers.

    NOT GIVEN True / False / Not Given

  12. 12

    Concern for the environment is leading to an increased demand for glass containers.

    TRUE True / False / Not Given

  13. 13

    It is more expensive to produce recycled glass than to manufacture new glass.

    FALSE True / False / Not Given

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