2014年职称英语考试补全短文练习题
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._____1_____
Old Faithful is not only a spectacular sight; its also a constant remainder that Yellowstone sits on one of the largest volcanoes in the world. If youve never heard of Yellowstones volcano, youre not alone._____ 2_____ yet it has erupted three times during the last million years. And one of those eruptions spewed enough volcanic ash and other debris to blanket half the United States.
Yellowstones volcano is sometimes called a supervolcano, or extremely large and explosive caldera volcano._____3_____. This supervolcano formed over a hot spot, an extremely hot area in Earths 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._____4_____
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 dont really know when the next eruption will happen.
_____5_____It is the volcanic energy that powers the geysers and hot springs, creates the mountains and canyons, and generates the unique ecosystems that support Yellowstones 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 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.
雅思写作必备替换词(5)
雅思分类词汇:流体设备-管件
雅思分类词汇:资源环境-生物多样性和保护区
雅思分类词汇:资源环境-水资源
雅思分类词汇:资源环境-污染
雅思分类词汇整理:体育中的一般词汇
雅思分类词汇整理:AXX词汇解读
雅思高分必备词汇:国家和语言相关词汇-1
雅思分类词汇:资源环境-人类住区
雅思词汇:“手足口病”相关
雅思分类词汇:资源环境-大气
游戏学习两不误 魔兽中的雅思词汇
雅思分类词汇:资源环境-公用事业
雅思分类词汇整理:体育项目
雅思分类词汇:资源环境-能源
雅思分类词汇:流体设备-管道用紧固件
雅思高分必备词汇:国家和语言相关词汇-2
雅思分类词汇:资源环境-运输
雅思考试高频率词汇整理(12)
雅思分类词汇:资源环境-生态系统
雅思考试高频率词汇整理(11)
雅思分类词汇整理:信用卡相关用语
雅思考试高频率词汇整理(18)
雅思分类词汇整理:金钱
雅思分类词汇:资源环境-生物技术问题
雅思考试高频率词汇整理(17)
雅思分类词汇:资源环境-生物资源
雅思分类词汇:资源环境-环境化学
雅思分类词汇整理:网球
雅思考试高频率词汇整理(13)
不限 |
英语教案 |
英语课件 |
英语试题 |
不限 |
不限 |
上册 |
下册 |
不限 |