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1、2019职称英语理工类 B 阅读试题 1A Great Quake Coming?Everyone who lives in San Francisco knows that earthquakes are common in the bay area and they can be devastatingIn 1906 ,for example ,a major quake destroyed about 28 , 000 buildings and killed hundreds, perhaps thousands of peopleResidents now wonder when t
2、he nextBigOnewill strikeIts bound to happen somedayAt least sevenactive fault(断层)lines run through the San Franciscoarea Faults are places where pieces of Earths crust(地 壳)slide past each otherWhen these pieces slip, the ground shakesTo prepare for that day, scientists are using new techniques to re
3、analyze the 1906 earthquake and predict how bad the damage might be when the next one happensOne new finding about the 1906 earthquake is that the San Andreas fault split apart faster than scientists had assumed at the timeDuring small earthquakes,faultsrupture(断裂 )at about 2.7 kilometers per second
4、 Duringbigger quakes , however, ruptures can happen at rates faster than 3.5 kilometers per secondAt such high speedsmassive amounts of pressure build up,generating underground waves that can cause more damage than the quake itself Lucky for San Francisco, these pressure pulses(脉冲)travel away from t
5、he city during the1906 event As bad as the damage was,it could have been far worseLooking ahead , scientists are trying to predict when the next major quake will occurRecords show that earthquakeswere common before 1906 Since then , the earthquake has beenrelatively quietPatterns in the data, howeve
6、r, suggest that the probability of a major earthquake striking the Bay Areabefore 2032 is at least 62 percentNew buildings in San Francisco are quite safe in case of future quakes Still,more than 84 per-cent of the citys buildings are old and weak Analyses suggest that another massive earthquake wou
7、ld cause extensive damagePeople who live there tend to feel safe because SanFrancisco has remained pretty quiet for a while According to the new reseaych,however, its not a matter ofif the BigOne will hit Its just a matter of when16. The San Francisco area is located above several active fault linesARight BWrongCNot mentioned17. The 1906 earthquake in San Francisco is the most severe one in American historyARight BWrongCNot mentioned18. The highest speed of fault ruptures in the 1906 quake was more than 3.5 kilometers per second.ARight BWrongCNot mentioned19. Earthquakes rarely happened be
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