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UNIT6主题训练自然灾害与防范,安全常识与自我保护
1.阅读理解
(2023~南京市六校联合体烟研试题)Natural disasters take many different forms and can
happen without warning.Earthquakes,floods,volcanoes,drought,typhoons and hurricanes
are all natural disasters.
The earthquake on December 26th,2004 resulted in one of the worst natural disasters in
living memory.It was a massive underwater quake and occurred in the Indian Ocean.This
caused a huge tsunami to cross the Indian Ocean.It destroyed coastlines and communities and
brought death and destruction to many people.The survivors needed fresh water,food and
shelters as well as medical help.People from all over the world gave money so that towns and
villages could be rebuilt.
The surface of the earth is not always looked as it does today;it is moving continuously
and has done so for billions of years.This is one cause of earthquakes,when one section of the
earth collides with another.Scientists can predict where this might happen and the area
between plates is called a fault (line.However,earthquakes do not always happen on
fault lines,which is why they are so dangerous and unpredictable.
Volcanoes happen where the earth's crust is thin-lava,dust and gases erupt from
beneath the earth.They can rise into a massive cone shape -like a mountain and erupt,or
they can be so violent that they just explode directly from the earth with no warning.
Hurricanes are extremely strong storms and often happen in the Caribbean.They cause
high winds,huge waves,and heavy flooding and can cross hundreds of miles.
Floods happen in many countries after very heavy rainfall.When rain pours for weeks at
a time and rivers overflow,people and property can be trapped or simply washed away.
Another kind of natural disaster is drought.This happens when there is no water
when it doesn't rain for a long time and rivers dry up.This causes crops to fail,animals to die
and sadly,people to starve.
All the disasters are very dangerous,but they are nowh