2012年英语专业四级考试真题PARTIIICLOZE【15MIN】 . (31)(32)munitiesandbroughtdeathtomanypeople. Whydoearthquakeshappen? Thesurfaceoftheearthhasnotalwayslookedasitdoestoday;itismoving(33)____(althoughveryslowly)(34)____ofearthquakes,whenonesectionoftheearth(tectonicplate)(35)(36),Japanin1923over200,000peoplewerekilled.(37)____,earthquakesdonotalways happenonfaultlines,(38)____iswhytheyaresodangerousand(39)____. Wheredovolcanoeshappen? Volcanoeshappenwheretheearth's(40)____isthin:lava,dustandgases(41),(42)____theycanbesoviolent(43)(44)'____'(45)(46)(47)____pen,or(48),scientistsmaybeabletowatchandpredict(49)(50)____manylives.
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