| 3. Light |
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Light is a form
of energy that allows us to see things. Light comes from
natural sources, such as the sun or other stars, and from
artificial sources, such as light bulbs. Before the discovery
of fire, nights on earth were lit only by the starlight.
Sunlight is essential to life on the planet because plants and blue-green
bacteria use it to manufacture food for all living organisms.
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| Analysing metaphors and similes. Similes
are comparisons; that is, they say that one thing is similar to
another: "This idea is as clear as water." In the case
of metaphors, we are stating that two things of two different orders
or categories are the same. We might say that metaphors are literally
false but figuratively true. |
| What do the expressions in italics mean?
You might want to look at the list of numbered expressions at the
end: |
| A. |
It’s clearer than the water we
drink. |
| B. |
If we don’t consume fewer resources, the
future may be very dark. |
| C. |
The messages in the adverts were not clear. |
| D. |
We must be clear about what type of
world we want to live in. |
| E. |
Their faces are dark. |
| F. |
He said clearly that
they would repair the windows. |
| G. |
It isn’t clear
whether they’ll put a garden or a building in the square. |
| 1. |
Difficult to understand
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6. |
Without any doubt |
| 2. |
Melancholic |
7. |
Foreseeing |
| 3. |
Uncertain |
8. |
Confusing |
| 4. |
Dangerous |
9. |
Serious |
| 5. |
Evident |
10. |
Plainly |
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Music. Listen to Music for the Royal
Fireworks by Georg Friedrich Handel. |
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| Painting. Étienne
de La Tour, b. circa 1621. The
Education of the Virgin (detail). |
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| Find out. What
relationship there is between light and colours. What
the colours of the rainbow are. |
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| Exercise. The
word "light", in Wondering at the World, 4.3.2 |
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| © Grup IREF 2003, with the support of the European Commission, DG XXII (Socrates/Comenius 3.2) |
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