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
Sleeping Giant Right now, an eruption is brewing (酝酿) in Yellowstone National Park (黄石国家公园). Sometime during the next two ho
Sleeping Giant Right now, an eruption is brewing (酝酿) in Yellowstone National Park (黄石国家公园). Sometime during the next two ho
admin
2011-01-05
68
问题
Sleeping Giant
Right now, an eruption is brewing (酝酿) in Yellowstone National Park (黄石国家公园). Sometime during the next two hours, the park’s most famous geyser(间歇泉), Old Faithful, will begin gurgling (潺潺地流) boiling water and steam. (46)
Old Faithful is not only a spectacular sight; it’s also a constant reminder that Yellowstone sits on one of the largest volcanoes in the world. If you have never heard of Yellowstone’s volcano, you are not alone. (47) Yet it has erupted three times during the last 2 million pears. And one of those eruptions spewed (喷涌) enough volcanic ash and other debris to blanket half the United States.
Yellowstone’s volcano is sometimes called a "super volcano", or extremely large and explosive calderas(破火山口)volcano. (48) This super volcano formed over a hot spot, an extremely hot area in Earth’s mantle(地幔). John Valley, a volcano professor, 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(大陆的) crust, which may cause catastrophic (灾难性的) 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 and blanketed most of the western half of the United States. (49)
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(可变性的), so we don’t really know when the next eruption will happen. "
(50) It is the volcanic energy that powers the geysers and hot springs, creates the mountains and canyons(峡谷) 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 at trams the interest of geologists the world over.
选项
答案
A
解析
本题考查的是对上下文之间的意义关系的理解及对文章细节的把握。第三段第一句说黄石公园的火山是extremely large,所以有时候被称为super volcano。选项A具体说明这个super volcano。大到什么程度,并且选项A中的calderas与空格(48)前面句子中出现的explosive calderas相对应,故选A。
转载请注明原文地址:https://kaotiyun.com/show/mIQd777K
本试题收录于:
职称英语理工类C级题库职称英语分类
0
职称英语理工类C级
职称英语
相关试题推荐
A.differenttechniquesB.socialrelationshipsandcommunicationC.languageandinformationD.severalcausesworkingtogether
A.differenttechniquesB.socialrelationshipsandcommunicationC.languageandinformationD.severalcausesworkingtogether
ImportanceofChildren’sOralHealth FebruaryisNationalChildren’sDental(牙齿的)HealthMonth,butinchildrengoodoralcarei
TheweatherisaconstantsubjectofconversationinBritain..
BillGates:UnleashingYourCreativityI’vealwaysbeenanoptimistandIsupposethatisrootedinmybeliefthatthepower
NappingtoaHealthierHeart?1Researcherssaytheyhavedevelopedasimpletestthatcantellifapersonwithheartdisea
DangersAwaitBabieswithAltitudeWomenwholiveintheworld’shighestcommunitiestendtogivebirthtounderweightbabie
EbolaOutbreak1YouarelikelyawarethatseveralcountriesinWestAfricaarebattlinganEbolaoutbreak.Ebolaisadangerous
Thegamerequiresustofindouttwosimplebuteffectivewaystosolvethisproblem.
Theideaofnothavingtogetupearlyeverymorningisratherappealingtome.
随机试题
下列关于债券投资水平分析策略说法正确的有( )。
简述生态破坏侵权的免责事由。
组织设计的核心是()
妊娠期母体心血管系统的变化,以下哪项恰当
测试标志板面色度性能时,制取的单色标志板面试样尺寸为()。
下列不属于上市公司再融资方式的是()。
下列各项中,不属于股票回购动机的是()。
目前,我国耕地总面积下降到18.27亿亩,进一步逼近18亿亩的红线。土地是财富之母。如果18亿亩耕地的红线守不住,将威胁到国家的粮食安全,危及子孙后代。要解决材料中存在的问题,就必须()。
从全世界范围看,论文依然是学术成果主流呈现方式,仍是学术界的“________”。问题的关键在于一个“唯”字,即论文成为了学术评价的唯一依据,学术评价________成了计算论文篇数、比拼刊物级别。依次填入画横线部分最恰当的一项是:
在C++中,ein是一个()。
最新回复
(
0
)