閱讀判斷(第16～22題，每題1分，共7分)

　　下面的短文后列出了7個句子，請根據(jù)短文的內(nèi)容對每個句子做出判斷：如果該句提供的是正確信息，請選擇A；如果該句提供的是錯誤信息，請選擇B；如果該句的信息文中沒有提及，請選擇C。

　　A Great Quake Coming?

　　Everyone who lives in San Francisco knows that earthquakes are common in the bay area and they can be devastating．In 1906，for example，a major quake destroyed about 28，000 buildings and killed hundreds，perhaps thousands of people．Residents now wonder when the next"Big One"will strike．It's bound to happen someday．At least seven active fault(斷層)lines run through the San Francisco area．Faults are places where pieces of Earth's crust(地殼)slide past each other．When these pieces slip，the ground shakes．

　　To prepare for that day, scientists are using new techniques to reanalyze the 1906 earthquake and predict how bad the damage might be when the next one happens．

　　One new finding about the 1906 earthquake is that the San Andreas fault split apart faster than scientists had assumed at the time．During small earthquakes，faults rupture(斷裂)at about 2.7 kilometers per second．During bigger quakes，however，ruptures can happen at rates faster than 3.5 kilometers per second．

　　At such high speeds．massive amounts of pressure build up，generating underground waves that can cause more damage than the quake itself．Lucky for San Francisco，these pressure pulses(脈沖)travel away from the city during the 1906 event．As bad as the damage was，it could have been far worse．

　　Looking ahead，scientists are trying to predict when the next major quake will occur．Records show that earthquakes were common before 1906．Since then，the earthquake has been relatively quiet．Patterns in the data，however，suggest that the probability of a major earthquake striking the Bay Area before 2032 is at least 62 percent．

　　New buildings in San Francisco are quite safe in case of future quakes．Still，more than 84 per-cent of the city's buildings are old and weak．Analyses suggest that another massive earthquake would cause extensive damage．

　　People who live there tend to feel safe because San Francisco has remained pretty quiet for a while．According to the new reseaych，however，it's not a matter of"if the Big One will hit"．It's just a matter of when．

　　16．The San Francisco area is located above several active fault lines．

　　A．Right

　　B．Wrong

　　C．Not mentioned

　　17．The 1906 earthquake in San Francisco is the most severe one in American history．

　　A．Right

　　B．Wrong

　　C．Not mentioned

　　18．The highest speed of fault ruptures in the 1906 quake was more than 3.5 kilometers per second.

　　A．Right

　　B．Wrong

　　C．Not mentioned

　　19．Earthquakes rarely happened before 1906．

　　A．Right

　　B．Wrong

　　C．Not mentioned

　　20．San Francisco is fully prepared for another big earthquake．

　　A．Right

　　B．Wrong

　　C．Not mentioned

　　21．Scientist will be able to predict the exact time of an earthquake soon．

　　A．Right

　　B．Wrong

　　C．Not mentioned

　　22．A major earthquake striking San Francisco someday is inevitable．

　　A．Right

　　B．Wrong

　　C．Not mentioned

　　參考答案及解析

　　16．B [解析]本題給出的信息是錯誤的。原文是："At least seven active fault lines run through the San FranciSCO area."

　　17．C [解析]文章沒有談到這方面信息。文章只提到1906年地震破壞性大，沒說是最嚴(yán)重的。

　　18．A [解析]本題給出的信息是正確的。原文是："During bigger quakes，baowever，ruptures can laappen at rates faster than 3.5 kilometers per secona．"由于1906年洛杉磯地震屬于大地震，因此本句"1906年洛杉礬地震斷層最高速度超過每秒3.5公里"是正確的。

　　19．B [解析]本題給出的信息是錯誤的。原文是："Recorcls show that earthquakes were common before 1906．"

　　20．B [解析]本題給出的信息是錯誤的。原文是："still，more than 84 percent of the city's buildings are old and weak．"既然大多數(shù)房屋不能抵擋地震，那么洛杉磯并沒有為地震的來臨做好準(zhǔn)備。

　　21．C[解析]文章沒有談到這方面信息。

　　22．A[解析]本題給出的信息是正確的。原文是："According to the new research，however，it's not a matter of'if the Big 0ne will hit'．It's just a matter of wllen．"既然問題是"地震什么時候會發(fā)生"，那么這一地震是無法避免的了。

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