2. 外语
  3. Most earthquakes occur within the upper 15 miles of the earth’s surface. But earthquakes can and do occur【C1】______all depths to

Most earthquakes occur within the upper 15 miles of the earth’s surface. But earthquakes can and do occur【C1】______all depths to

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问题     Most earthquakes occur within the upper 15 miles of the earth’s surface. But earthquakes can and do occur【C1】______all depths to about 460 miles. Their number【C2】______as the depth increases. At about 460 miles one earthquake occurs only every few years. Near the surface earthquakes may run as【C3】______as 100 in a month, but the yearly average does not【C4】______much.
    The【C5】______of the disaster in an earthquake depends on many【C6】______. If you carefully build a toy house with an erect set, it will still stand no matter【C7】______you shake the table. But if you build a toy house with a【C8】______of cards, a slight shake of the table will make it fall. An earthquake in Agadir, Morocco, was not strong enough to【C9】______on distant instruments, but it completely destroyed the city. Many stronger earthquakes have done comparatively【C10】______damage. If a building is well【C11】______and built on solid ground, it will【C12】______an earthquake. Most【C13】______in earthquakes have been【C14】______faulty building construction or poor building sites. A third and very serious factor is panic. When people rush out into narrow streets, more deaths will【C15】______.
    The United Nations【C16】______an important part in【C17】______the damage done by earthquakes. It has sent a team of experts to all countries known to be【C18】______by earthquakes. Working with local geologists and engineers, the experts have studied the【C19】______of the ground and the type of most practical building code for the local area. If【C20】______, these suggestions will make disastrous earthquakes almost a thing of the past.
【C11】
选项 A、built
B、constructed
C、made
D、erected
答案B
解析 上下文题 根据下文可知地震造成的灾害大小取决于建筑物的构造结构及其建造场地。故此处当选用construct“构造”，而非build“(泛指)建造”。erect“建造(同build)，创立(set up)”。
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