首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
In 1991 Philippines witnessed the second largest volcanic eruption that hit an area with large population.
In 1991 Philippines witnessed the second largest volcanic eruption that hit an area with large population.
admin
2009-06-24
68
问题
In 1991 Philippines witnessed the second largest volcanic eruption that hit an area with large population.
The second-largest volcanic eruption of the 20th century, and by far the largest eruption to affect a densely populated area, occurred at Mount Pinatubo in the Philippines on June 15, 1991. The eruption produced high-speed massive falling of hot ash and gas, giant mudflows, and a cloud of volcanic ash hundreds of miles across. The impacts of the eruption continue to this day.
A huge cloud of volcanic ash and gas rose above Mount Pinatubo, Philippines, on June 12, 1991. Three days later, the volcano exploded in the second-largest volcanic eruption on Earth in this century. Timely forecasts of this eruption by scientists from the Philippine Institute of Volcanology and Seismology and the U.S. Geological Survey enabled people living near the volcano to evacuate to safer distances, saving at least 5,000 lives.
On July 16, 1990, a magnitude 7.8 earthquake (comparable in size to the great 1906 San Francisco, California, earthquake) struck about 60 miles (100 kilometers) northeast of Mount Pinatubo on the island of Luzon in the Philippines, shaking and squeezing the Earth’s crust beneath the volcano. At Mount Pinatubo, this major earthquake caused a landslide, some local earthquakes, and a short-lived increase in steam emissions from a pre-existing geothermal area, but otherwise the volcano seemed to be continuing its 500-year-old sleep undisturbed. In March and April 1991, however, molten rock rising toward the surface from more than 20 miles beneath Pinatubo triggered small earthquakes and caused powerful steam explosions that blasted three outlets on the north flank of the volcano. Thousands of small earthquakes occurred beneath Pinatubo through April, May, and early June, and many thousand tons of noxious sulfur dioxide gas were also emitted by the volcano. Following Mount Pinatubo’s disastrous eruption on June 15, 1991, thou sands of roofs collapsed under the weight of ash made wet by heavy rains. Ash deposits from the eruption have also been remobilized by monsoon and typhoon rains to form giant mudflows of volcanic materials, which have caused more destruction than the eruption itself.
Nearly 20 million tons of sulfur dioxide were injected into the upper atmosphere in Pinatubo’s 1991 eruptions, and dispersal of this gas cloud around the world caused global temperatures to drop temporarily (1991 through 1993) by about 1 degree. The eruptions have dramatically changed the face of central Luzon, home to about 3 million people. About 20 000 indigenous Aeta highlanders, who had lived on the slopes of the volcano, were completely displaced, and most still wait in resettlement camps for the day when they can return home. About 200,000 people who evacuated from the lowlands surrounding Pinatubo before and during the eruptions have returned home but face continuing threats from lahars that have already buried numerous towns and villages. Rice paddies and sugar-cane fields that have not been buried by lahars have recovered; those buried by lahars will be out of use for years to come.
选项
A、Right
B、Wrong
答案
B
解析
独白第一句即指出:The second-largest volcanic eruption...on June 15, 1991,但题句中没有of the 20th century这—限定词,因此the second-largest volcanic eruption所指不对,故题句是错误的。
转载请注明原文地址:https://kaotiyun.com/show/WwTd777K
本试题收录于:
公共英语五级笔试题库公共英语(PETS)分类
0
公共英语五级笔试
公共英语(PETS)
相关试题推荐
AlaskaIn1959AmericanswelcomedAlaskaintotheUnionasthe49thstate,symbolizingachangeofattitudefromthatheldi
SurveyFoundManyWomenMisinformedAboutCancerSixty-threepercentofAmericanwomenthinkthatifthere’snofamilyhist
HomeSchoolingAllchildrenintheUnitedStateshavetoreceiveaneducation,butthelawdoesnotsaytheyhavetobeeduc
HomeSchoolingAllchildrenintheUnitedStateshavetoreceiveaneducation,butthelawdoesnotsaytheyhavetobeeduc
SmugglingItisnotunusualforapettobesentbyaircargofromColumbiatoNewYork,butlastDecember’sshipmentofa4
TooLatetoRegretItWhenIwasajunior,Imetasecond-yearstudentinmydepartment.Hewasn’ttallorgood-looking,but
WhichofthefollowingisNOTtrueaboutdomesticviolence?Astotheremediesfordomesticviolenceweknowfromthepassaget
EvenIntelligentPeopleCanFail1Thestrikingthingabouttheinnovatorswhosucceededinmakingourmodernworldishowoft
TheproblemoverapyrightprotectionTheUSSupremeCourthasjuststeppedintoapublicdebateabouttherelationshipbetweenp
A.alotofmoneyB.anumberofreasonsC.almosteverythingD.hischildhoodmemoriesE.tellingscarystoriesF.makingchild
随机试题
A.中极B.关元C.气海D.天枢常用以诊断小肠病的腧穴是
男性,40岁,4年来活动时心悸、气短,2个月来有夜间憋醒。查体:血压130/80mmHg,颈静脉无怒张,心界向左扩大,心尖部可闻及舒张期隆隆样杂音。心率80次/分,双肺底未闻及干湿性啰音,肝、脾肋下未及,双下肢无水肿。既往:20年前发热、下肢关节红肿史。
围生期是指
机体的抗感染免疫主要包括以下哪两大类
(特殊人群合理应用抗菌药物)A.透析患者B.肺结核患者C.8岁以下儿童D.肝功能减退患者E.细菌性感染的老年人避免使用利福平、红霉素酯化物等的是
当有()情况之一的,不得按照全国统一测强曲线进行换算,但可制订专用测强曲线或通过试验修正。
普通吊架由()组成。
下列关于肺癌的描述,正确的是()。
设函数f(x)在[一2,2]上二阶可导,且|f(x)|≤1,又f2(0)+[f’(0)]2=4.试证:在(一2,2)内至少存在一点ξ,使得f(ξ)+f”(ξ)=0.
ChineseNewYearisChinasmostimportanttraditionalfestival,withmanyinterestingcustoms.ItisneveronJanuary1.Chinese
最新回复
(
0
)