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2015年6月英語六級
2010年6月英語六級
Volcanoes happen where the earth's(40)____ is thin：lava，dust and gases(41)____ from beneath the earth.They can rise into a huge cone shape like a mountain and erupt，(42)____ they can be so violent(43)____ they just explode directly from the earth with no warning.There are 1511(44)'____' volcanoes in the world.This means that they may(45)____ be dangerous.In 1985 the Colombian volcano Nevado del Ruiz erupted.The lava melted a glacier and sent tones of mud(46)____ the town below.Twenty thousand people died.Natural disasters like volcanic eruptions are often unpredictable.We regularly do not know when they(47)____ pen，or (48)____ where they will happen.In the future，scientists may be able to watch and predict(49)____ before they happen.This could(50)____ many lives.
31.A.massive B.significant C.great D.grand
32.A.changed B.converted C.destroyed D.transformed
33.A.frequently B.continuously C.regularly D.periodically
34.A.source B.reason C.movement D.cause
35.A.collides with B.confronts with C.meets with D.faces with
36.A.how B.why C.when D.what
37.A.Generally B.However C.Similarly D.Anyway
38.A.that B.it C.this D.which
39.A.unpredictable B.unaccountable C.inevitable D.irresistible
40.A.surf-ace B.appearance C.crust D.cover
41.A.flowed out B.burst out C.1eaked out D.trickled out
42.A.or B.and C.nor D.but
43.A.like B.for C.as D.that
44.A.living B.active C.alive D.live
45.A.relatively B.hardly C.still D.gradually
46.A.down B.on C.acroD.beyond
47.A.are to B.should C.must D.might
48.A.else B.even C.though D.whether
49.A.accidents B.incidents C.occasions D.events
50.A.rescue B.save C.preserve D.shelter
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