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
54
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
独白最后一段说明的是这次火山爆发的后果。该段第一句和第二句只是说爆发使得全球气温暂时下降1度及使得Luzon中心地带的地表完全改变,并没有说它对全球环境造成污染,因此题句错误。
转载请注明原文地址:https://kaotiyun.com/show/QwTd777K
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
TheMostWonderfulIslandsThePalmIslandsarethelargestartificialislandsintheworldandareunderconstructioninDu
Thepoliceareworkinginconjunctionwithtaxofficersontheinvestigation.
ASuccessStoryAt19,BenWayisalreadyamillionaire,andoneofagrowingnumberofteenagerswhohave【C1】______theirfo
TooLatetoRegretItWhenIwasajunior,Imetasecond-yearstudentinmydepartment.Hewasn’ttallorgood-looking,but
Whatdoesthepassagemainlydiscuss?Whatexplanationisgivenfortheuseofthesubtractivemethodinmoderncolorfilms?
Tohaveabetterunderstandingofapoem,oneshouldAccordingtothewriter,OneofthepurposesofteachingEnglishistoget
TheAmericanFamilyIntheAmericanfamilythehusbandandwifeusuallyshareimportantdecisionmaking.Whenthechildrenar
TheDangersofSecondhandSmokeMostpeopleknowthatcigarettesmokingisharmfultotheirhealth.Scientificresearchshow
Goodschoolscienceeducationisexpensive.Itrequiresspecialistteachers,laboratories,equipment,techniciansandconsumable
随机试题
甲携带乙厂盖有合同专用章的空白合同,以乙厂的名义与丙厂签订买卖冰箱合同一份,货物运抵后乙厂以甲并非自己的业务员为由拒付货款。甲的行为属于()
Youknowthatpearlsgrowinsideoysters,butwouldyoueverthinktolookfordiamondsinsideanostrich?Well,ahunteronce
以下可排除结核菌感染的是
女性患者,25岁,与丈夫争吵后服磷化锌,丈夫发现后将其送往医院救治,病人极度不配合,下列护理不妥的是
患者,女,26岁。劳累受凉后,水肿3天,尿少(500ml/dL左右),血压9.5/12.8kPa(150/98mmHg),血红蛋白6g,红细胞2000×103/mm3,胆固醇7.8mmol/L,血清白,球蛋白各3%,尿蛋白(++),红、白细胞各(+)
房屋结构中,混凝土结构耐心性是一个复杂得多因素综合问题,我国规范增加了混凝土结构耐久性设计的基本原则,按规定,普通房屋和构筑物的设计使用年限为( )。
银行存款余额调节表是调整账簿记录,使账实相符的原始凭证。()
某公司管理层希望鼓励其他所有部门,当情况需要时,要把法律部利用起来。为此,法律部发生的成本应该:
短期投资在转为长期投资时应按成本与市价孰低结转,而长期投资转为短期投资时,则无需作账处理。( )
一般来说,教学原则制定的依据主要包括()。
最新回复
(
0
)