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选修⑦Unit3单元主题语篇训练
1.阅读理解
A
Coral reefs are an integral part of sea life and sustain it by providing shelter
and habitat to various organisms.They also supply and recycle nutrients as well as enable a
growing fish population,along with other species,for a healthy and diverse ecosystem.
However,the rise in average water temperatures due to climate change has resulted in more
frequent and long-time“coral bleaching(W瑚白化)”events that damage their health,
causing fish and other sea species to abandon them.
In order to restore this delicate ecosystem,scientists from the U.K.and Australia
conducted a study that involved using loudspeakers underwater near damaged coral reefs to
make them sound healthy and attract fish,potentially kick-starting the natural recovery
process of coral reefs and their dependent life forms.The location for this experiment was the
Great Barrier Reef in the Coral Sea,found alongside the east coast of Queensland,Australia.
The site is noted to have the largest coral reef system in the world.
"Healthy coral reefs are remarkably noisy places-the crackle of snapping shrimp
and the whoops and grunts of fish.Young fish concentrate on these sounds when they're
looking for a place to settle,"said Steve Simpson,study co-author and a professor at the
University of Exeter,U.K.
By using loudspeakers to copy such sounds,parts of dead coral reefs were found to
attract twice as many fish,compared to places where no sounds were played."These
returning fish are crucial for coral reefs to function as healthy ecosystems.Boosting fish
population in this way could help to kick-start natural recovery processes,preventing the
damage we're seeing on many coral reefs around the world,"said lead author,Tim Gordon.
语篇解读:由于海水温度的上升,深海珊瑚的生态遭到攻坏。科学家通过实验研究发
现,在珊瑚礁旁边放置扬声器以吸引海洋生物对于恢复珊瑚的生态卓有成效。
1.What causes the phenomenon of coral bleaching?
A.Diverse species.
B.Noise pollution.
C.Fishing industry.
D.Climbing temperatures.
解析:选D细