一种生物只有一种生殖方式( ) 答案:错误A volcanic eruption in Iceland has sent ash across
northern Europe. Airlines have stopped or changed the flights across the
Atlantic Ocean, leaving hundreds of passengers stuck in airports.
Grimsvotn is one of the largest and most active
volcanoes in Europe. What makes
Grimsvotn different is that it lies under a huge
glacier(冰川)of ice up to 12 metres thick. The hot
volcano heats up the ice above it, which then forms a layer(层)
of water between glacier and the volcano, keeping it
stable. As the water flows out from under the glacier, the pressure lifts. The
lava(岩浆) from the volcano then comes up to the
surface. This is exactly what is happening today.
Now airlines have to make changes to their flights so
as not to fly through the clouds of volcanic ash. According to KLM, one of
Europe’s biggest airlines, airplanes cannot go under the cloud or over it.
Going through the cloud can result in ash getting stuck in the airplane’s
engines, causing damage to the plane.
The eruption has also caused problems for animals in
Iceland. The volcano left ash and sharp, glass-like rocks all over the
countryside. Farmers are keeping their animals inside to stop them eating
ash-covered grass or the sharp objects.
1.What makes Grimsvotn different from other volcanoes?
A.It is under
the sea. B.Its lava
affects the airlines.
C.It is the
largest volcano. D.It is below
ice.
2.What keeps Grimsvotn still?
A.The slow flow
of water.. B.The thick
glacier.
C.The water
pressure. D.The low water
temperature.
3.Which of the following is the result of the volcano
eruption?
A.It becomes
dangerous for animals to eat outside.
B.Famers have
lost many of their animals.
C.Airlines
suffer from the loss of planes.
D.People stop
traveling in Europe.
4.how many passengers were forced to stay in the
airport?
A.thousands of
passengers B.hundreds of
passengers
C.ten thousands
of passengers D.20000 of
passengers