ACTIVITY 389: Read the text
below. Use the words on the right to form a word (a noun,
adjective or adverb) that fits in the blank space in the same
line. The first word is already done for you. Then check the
correct answers.
It
is estimated that there are 250,000 flowering plants in
EXIST
today,
but thousands of these are still unknown. The
TROPICS
rainforests
are home to half of the earth's plant species.
APPROXIMATE
Yet
an area of rainforest the size of Austria is being
THOUGHT
destroyed
every year.
Every
day five plants become extinct. This is worrying
DESTROY
because
many medicines are based on plants.
For
example, worldwide leukaemia owe their
SUFFER
to chemicals from the flower of the rosy periwinkle; and
SURVIVE
patients
breathe
during operations thanks to the
EASE
thornapple. Even
the people sometimes take something
HEALTH
first found in
willow bark and now known as aspirin.
Who
knows what as yet weapons against cancer, heart
DISCOVER
disease or AIDS are being by the ruin of the world
THREAT
rainforests?
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