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  3. Ever since human beings have inhabited the Earth, earthquakes have plagued our lives. These dangerous acts of the Earth have【C1】

Ever since human beings have inhabited the Earth, earthquakes have plagued our lives. These dangerous acts of the Earth have【C1】

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问题     Ever since human beings have inhabited the Earth, earthquakes have plagued our lives. These dangerous acts of the Earth have【C1】______ great damage to people. They have the power to uproot trees and send them【C2】______ into buildings. They can【C3】______ landslides and cause flooding and tsunamis. Buildings and structures are also【C4】______. Buildings with thick, heavy walls do not【C5】______ shock waves well. Violent earthquakes often cause structures to【C6】______, burying people underneath. Brick buildings are the most【C7】______.
    The shaking of the earth is sometimes not the greatest disaster. It is in the 【C8】______fires and floods that often the greatest damage【C9】______. There are several things that you have to watch out 【C10】______ immediately after the earthquake.
    The first thing that you should do after an earthquake is to【11】_____ yourself for injuries. Often people【C12】______to others without checking their own injuries. Then don’t forget to protect yourself from【C13】______danger by putting on long pants, a heavy shirt, and strong shoes. After you have taken care of yourself, help injured or【C14】______ persons. Don’t try to move seriously injured people unless they are in【C15】______ danger of further injury.
    Once people are taken care of, you must take care of anything that can cause further harm. Look for and【C16】______ small fires and eliminate fire hazards. Fire is the most common【C17】______following earthquakes, creating more damage than the earthquake itself. Leave the gas on, unless you smell gas or think it’s【C18】______. It may be weeks or months before【C19】______ can turn gas back on using the correct procedure. With improvements in technology, lives have been saved and many more【C20】______. All that remains is to research what takes place before, during, and after an earthquake.
【C4】
选项 A、at best
B、at peace
C、at risk
D、at length
答案C
解析 短语辨析题。[A]at best“至多，充其量”；[B]at peace“处于和平或平静的状态”；[C]at risk“处于危险之中”；[D]at length“最终，详细地”。其中[C]符合原文。
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