Name:_________________________ Date:_______________


Comprehension (5.2)

Read the passage and answer the questions.

Inventions

Human beings have been inventing since we first appeared on Earth
starting with the simple stone age tools. In the last one hundred years, the
pace of inventions has accelerated. Not all inventions were immediately
recognised as useful. For example, the photograph was not even perceived
as a practical tool at the time it was invented by Thomas Edison. Edison is
one of the greatest inventors of mankind.
Many inventions came from individuals who work alone. Ideas were
often a moment of inspiration but the invention always took painstaking
hardwork over many years. Leonardo da Vinci's helicopter took a few
hundred years to develop from his early sketches to what we see today.
Some inventions such as the wheel and paper clip are simple. Others
like transistors and locomotives are more complex. But each invention has
an important impact on man's daily life. All inventions have one thing in
common, an inquisitive and creative mind.

1. When did human beings start inventing new things?
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2. Who invented photograph and how was it being perceived?
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3. What was Leonardo's contribution to the invention of helicopter?
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4. What is needed for any invention to succeed?
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5. Name one product in your house which has transistors?
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