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
Shooting molten rock more than 500 meters into the air, Etna sent streams of lava rushing down its northeastern and southern fla
Shooting molten rock more than 500 meters into the air, Etna sent streams of lava rushing down its northeastern and southern fla
admin
2017-04-21
53
问题
Shooting molten rock more than 500 meters into the air, Etna sent streams of lava rushing down its northeastern and southern flanks. The eruption was accompanied by hundreds of earthquakes measuring up to 4.3 on the Richter scale. As a huge plume of smoke and ash drifted across the Mediterranean Sea, residents of Linguaglossa(the name means "tongues" of lava)tried to ward off the lava flows by parading a statue of their patron saint through the town’s streets.【R1】______. But the episode was unnerving because it was so similar to an erratic eruption on the volcano’s southern flank in the summer of 2001 that destroyed parts of a tourist complex and threatened the town of Nicolosi. Some of the lavas discharged in both events were of an unusual type last produced in large amounts at the site about 15,000 years ago.【R2】______.
The Sicilians living near Mount Etna have long regarded the volcano as a restless but relatively friendly neighbor.【R3】______. But now some researchers believe they have found evidence that Etna is very gradually becoming more dangerous. It is unlikely that Etna will explode like Mount Saint Helens in the near future, but fierce eruptions may become more common.
【R4】______. Extensive reports and legends record about 3,000 years of the volcano’s activity, but a reliable chronicle has been available only since the 17th century. Most of the earlier accounts are limited to particularly violent eruptions, such as those occurring in 122 B.C. and A.D. 1169, 1329, 1536 and 1669. During the eruption in 1669, an enormous lava flow buried part of the city of Catania before pouring into the sea.
With a surface area of approximately 1,200 square kilometers, Etna is Europe’s largest volcano. Its 3,340-meter-high peak is often covered with snow.【R5】______. Blocks of this material are occasionally caught in the magma — the molten rock moving upward—and ejected at the surface. Numerous blocks of white sandstone were blown out during the 2001 and 2002 eruptions. This phenomenon occurs whenever magma must open new paths for its ascent, as is usually the case with lateral eruptions(those that occur on the volcano’s flanks).
The volcano is more than 500,000 years old. Remnants of its earliest eruptions are still preserved in nearby coastal regions in the form of pillow lavas, which emerge underwater and do in fact look like giant pillows.【R6】______. Today a much steeper cone rests on the ancient shield volcano. It consists of at least five generations of volcanic edifices that have piled up during the past 100,000 to 200,000 years, each atop the remnants of its eroded or partly collapsed predecessor.【R7】______. Among Etna’s special features are the hundreds of small cinder cones scattered about its flanks. Each marks a lateral outbreak of magma.【R8】______.
A. Only the upper 2,000 meters consists of volcanic material; the mountain rests on a base of sedimentary rock beds.
B. Perhaps because of divine intervention, nobody was hurt and damage was not widespread.
C. The name of "Etna" is derived from an old Indo-Germanic root meaning "burned" or "burning".
D. At first, a shield volcano — so called because it resembles a shield placed face-up on the ground — grew in a depression in the area where Etna now stands.
E. One of the world’s most productive volcanoes, Etna has spewed about 30 million cubic meters of igneous material each year since 1970, with a peak eruption rate of 300 cubic meters a second.
F. At that time, a series of catastrophic eruptions led to the collapse of one of Etna’s predecessor volcanoes.
G. Though persistently active, Etna has not had a major explosive eruption — such as the devastating 1980 event at Mount Saint Helens in Washington State — for hundreds of years.
H. The present-day cone has been built in the past 5,000 to 8,000 years.
【R1】
选项
答案
B
解析
此句的前一句讲到了当地的原始居民在火山爆发时,往往是求助于守护神。B句讲的是“也许是由于神的干预,没有人受伤,而且损失也很小。”承接了前一句。后文转折进一步说尽管是没有多少损失,但是这个事情也使人不安。此句与前后文呼应,因此B为正确答案。
转载请注明原文地址:https://kaotiyun.com/show/qX9d777K
本试题收录于:
BFT阅读题库国际化人才外语考试(BFT)分类
0
BFT阅读
国际化人才外语考试(BFT)
相关试题推荐
Readthefollowingarticleandanswerquestions9~18onthenextpage.Happy75thBirthday,SocialSecurit
Readthefollowingpassageandchoosethebestwordforeachspace.Moneyspentonadvertisingismoneyspentaswellasany
Readthefollowingpassageandchoosethebestwordforeachspace.Moneyspentonadvertisingismoneyspentaswellasany
Shootingmoltenrockmorethan500metersintotheair,Etnasentstreamsoflavarushingdownitsnortheasternandsouthernfla
Tradeiscentraltohumanhealth,prosperityandsocialwelfare.【R1】______Examplesoftradeindailylifearesoabundanttheys
InBritain,agreementsforinvitingandentertainingguestataweddingareusuallytheresponsibilityofthebride’sfamily.In
Experimentshaveshownthatinselectingpersonnelforajob,interviewingisatbestahindrance,andmayevencauseharm.Thes
ThenumberofspeakersofEnglishinShakespeare’stimeisestimatedtohavebeenaboutfivemillion.Todayitisestimatedthat
ThenumberofspeakersofEnglishinShakespeare’stimeisestimatedtohavebeenaboutfivemillion.Todayitisestimatedthat
Thefunctionoftheofficeistoperformadministrativework.First,itmustprovidethenecessarycommunicationswithcustomers
随机试题
A、过清音B、鼓音C、实音D、水泡音E、哮呜音大叶性肺炎
制定安全生产事故应急预案时,应当遵循的原则包括()。
内部控制必须随着有关法律、法规的调整和经营方针、经营理念等外部环境的变化及时修改或完善,这体现了制定内部控制制度的()原则。
如果在国民经济繁荣阶段某行业的销售额逐年同步增长,而在国民经济处于衰退阶段该行业的销售额同步下降,说明这一行业可能是周期性行业。()
一般地,一个完整的公司信贷产品市场营销计划应包括()。
导游在行为上应注意的问题包括()。
以下折线图反映了2014~2018年间哪项收入同比增量的变化趋势?
下列选项中,属于应用法学的是()。
以下程序段的输出结果是【】。main(){inta=2,b=3,c=4;a*=16+(b++)-(++c);printf("%d",a);}
Parentsofwailing(哀号)babies,takecomfort:Youarenotalone.Chimpanzeebabiesfuss.Seagullchickssquawk.Buryingbeetle
最新回复
(
0
)