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
考研
Sleeping Giant Right now, an eruption is brewing in Yellowstone National Park. Sometime during the next two hours, the most
Sleeping Giant Right now, an eruption is brewing in Yellowstone National Park. Sometime during the next two hours, the most
admin
2020-03-31
53
问题
Sleeping Giant
Right now, an eruption is brewing in Yellowstone National Park. Sometime during the next two hours, the most famous geyser. Old Faithful, will begin gurgling boiling water and steam. 41
Old Faithful is not only a spectacular sight) it’s also a constant remainder that Yellowstone sits on one of the largest volcanoes in the world. If you’ve never heard of Yellowstone’s volcano, you’re not alone. 42 Yet it has erupted three times during the last 2 million years. And one of those eruptions spewed enough volcanic ash and other debris to blanket half the United States.
Yellowstone’s volcano is sometimes called a "supervolcano", or extremely large and explosive caldera volcano. 43 this supervolcano formed over a hot spot, an extremely hot area in Earth’s mantle. John Valley, a volcano professors, said that as the crust moves across a hot spot, the hot spot melts a section of the plate moving over it, forming "one volcano after another".
The Yellowstone hot spot melts thick continental crust, which may cause catastrophic eruptions. According to experts the eruptions that created each of the three calderas in and around Yellowstone National Park were larger than any other volcanic eruption in recorded history. The most recent eruption, which happened 640, 000 years ago, produced at least 1, 000 cubic kilometers of ash and debris, which blanketed most of the western half of the United States. 44
Geological evidence shows Yellowstone has blown its stack every 700, 000 years or so. "If nature were truly that regular and reliable, we would be due for another eruption soon, " said Valley. "However, these processes are subject to variability, so we don’t really know when the next eruption will happen."
45 It is the volcanic energy that powers the geysers and hot springs, creates the mountains and canyons, and generates the unique ecosystems that support Yellowstone’s diverse wildlife.
A. Three calderas make up more than a third of Yellowstone National Park.
B. The first Yellowstone eruption, 2 million years ago, released more than double that amount of ash and debris.
C. The volcano is so inconspicuous (不显眼的) that few people know it exists.
D. Then, an enormous fountain will shoot high into the air.
E. While the active geologist processes at Yellowstone do pose some risk to the public, they also make it a unique treasure.
F. Yellowstone National Park attracts the interest of geologists the world over.
选项
答案
E
解析
“空45”所在段的前面两段介绍了黄石公园火山以前喷发时的可怕情景。“空45”所在段叙述火山能量带来的好处。这是两种情景截然相反的描写,中间很可能有一个过渡句,把它们连接起来。选项E就是过渡句,应该是本题的答案。
转载请注明原文地址:https://kaotiyun.com/show/SE1Z777K
0
考研英语一
相关试题推荐
"Googleisnotaconventionalcompany.Wedonot【C1】______tobecomeone,"wroteLarryPageandSergeyBrin,thesearchfirm’sfo
AstudypublishedintheInternationalJournalofBusinessAdministrationfoundthatwhatstudentsreadincollegedirectlyeffe
WhenIstartedmycareerIwasastonishedbyhowsuperhumansomeFortune500executiveswere.Itseemedtheyweremagicians.Eve
Nowondertheyarecalled"patients".Whenpeopleenterthehealth-caresystemsofrichcountriestoday,theyknowwhattheywil
Britain’sflexiblelabourmarketwasaboonduringtheeconomicslump,helpingkeepjoblessnessdownandthen,whentherecovery
Childrenmodelthemselveslargelyontheirparents.Theydosomainlythroughidentification.Childrenidentify【C1】______aparen
Childrenmodelthemselveslargelyontheirparents.Theydosomainlythroughidentification.Childrenidentify【C1】______aparen
Americans’prideandfaithoftheireconomicsystem,【C1】______thatitprovidesopportunitiesforallcitizenstohavegoodliv
ThereisgrowinginterestinEastJapanRailwayCo.ltd.,oneofthesixcompanies,createdoutoftheprivatizednationalrailw
ThereisgrowinginterestinEastJapanRailwayCo.ltd.,oneofthesixcompanies,createdoutoftheprivatizednationalrailw
随机试题
设曲线Γ:,则∫Γds=().
国家的治理形式可分为()
下列不属于物流信息服务功能的是()
正常情况下,血液中钙离子的浓度是
为使全口义齿获得良好的封闭作用,应制取
会计软件必须具备的初始化功能有()。
某企业设有供电和机修两个辅助生产车间,本月份根据辅助生产明细账知悉:供电车间发生的费用为3520元,机修车间发生的费用为3360元,具体情况如表所示:该企业辅助生产车间不单独设置“制造费用”科目。要求:根据上述资料,回答下列小题。假定采用直接
有A和B两个公司想承包某项工程。A公司需要300天才能完工,费用为1.5万元/天。B公司需要200天就能完工,费用为3万元/天。综合考虑时间和费用等问题,在A公司开工50天后,B公司才加人工程。按以上方案,该项工程的费用为多少?
5,9,14,21,32,( )
______relativelycostly,theengineishighlyefficientandneedsservicinginfrequently.
最新回复
(
0
)