We have always been warned of the
dangers of forest fires. They cause _____ 85 _____ to a forest. They kill many
plants and animals in an eco-system, which is a group of living things and
their environment. But have you ever heard of a forest fire that can be
_____86_____ for a forest? People start some of the fires with a special
reason to actually do good to the eco-system.
In fact, fires are a natural part
of any eco-system. Without fires, the oldest and largest trees would stop
sunlight from reaching the forest floor. Fires can _____87_____ some of these
old trees. When the trees die, they provide something good for the earth. New
trees can grow strong and healthy in their place.
Some trees even need fires to
grow. These trees hold their seeds (種子) inside. Heat from a fire allows the coat of
the seeds to open up. Then the seeds fall to the ground and have the
_____88____ to grow/
Scientist, who know about nature’s needs, start some of these fires, called controlled burns. A
fire is started and kept under control. This way, the fire does not spread out
of the area or _____89_____ a after forest fires, they can go hungry
_____90_____ their food has been damaged in the fire. Small, controlled fires
mean than animals will not have to move far to find food. After some time,
small plants begin to grow. Animals return soon after the plants return. This
_____91_____ makes an eco-system.
So the next time you hear about a
forest fire, think about the good as well as the bad. It may take a new
eco-system a while to return, but it will likely come back stronger and
healthier than ever.
1.A) illness B)
difficulty C)
damage D) flood
2. A) helpful B)
powerful C)
harmful D) awful
3. A) take the place of
B) get ready for C) be bad
for D) get rid of
4.A) time
B) water C)
chance D) skill
5.A) discover B)
cover C)
but D) waste
6. A) because B)
although C)
but D) so
7.A) almost
B) again C)
never D) even
