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§阅读理解§序列号X—X§共4页§资料整理：138 xxxx xxxx §2014-07-31
第三部分：阅读理解
The volcano is one of the most surprising frightening forces of nature.Maybe you have seen pictures of these“fireworks”of nature.Sometimes when a volcano erupts, a very large wall of melted rock moves down the side of a mountain.It looks like a “river of tire.”Sometimes volcanoes explode, throwing the melted rock and ashes(灰)high into the air.But where does this melted rock come from?
The earth is made up of many layers(层).The top layer that we see is called the crust.Under the crust are many layers of hard rock.But far, far beneath the crust whose rock is so hot, that it is soft.In some places it even melts.The melted rock is called magma.Sometimes the magma breaks out to the surface through cracks(爆裂声)in the crust.These cracks are volcanoes.Most people think of mountains when they think of volcanoes.But not every mountain is a volcano.A volcano is simply the opening in the earth from which the magma escapes.The hot magma, or lava as it is called, cols and builds up on the surface of the earth.Over thousands of years, this pile of cooled lava can grow to be very, very big.For example, the highest mountain in Africa, Kilimanjaro, is a volcano.It towers more than 16,000 feet above the ground around it.1.The underlined word“erupts”means.A.moves down B.breaks away
C.builds up D.suddenly throws out lava
2.Which words in the paage have the same meaning as “melted rock”?
A.“Volcano”and“explode”.B.“Crust”and“hard rock”
C.“magma”and“lava” D.“Volcano”and“magma”
3.Which is the correct order of the layers of the earth(beginning with the top layer)?
A.crust-hard rock-magma-soft rock
B.crust-hard rock-soft rock-magma
C.magma-soft rock-hard rock-crust
D.volcano-cracks-magma-crust
4.The best title(标题)of the paage should be u.A.The Volcano B.Kilimanjaro Volcano
C.The Mountains D.The Melted Rock
KEY: DCBA
