阅读判断(第16~22题,每题1分,共7分)
下面的短文后列出了7个句子,请根据短文的内容对每个句子做出判断;如果该句提供的是正确信息,请选择A;如果该句提供的是错误信息,请选择B;如果该句的信息文中没有提及,请选择C。
Eastern Quakes Can Trigger Big Shakes
In the first week of November 2011, people in central Oklahoma experienced more than two dozen earthquakes. The largest, a magnitude 5.6 quake, shook thousands of fans in a college football stadium, caused cracks in a few buildings and rattled the nerves of many people who had never felt a quake before. Oklahoma is not an area of the country famous for its quakes. If you watch the news on TV, you see reports about all sorts of natural disasters hurricanes, tornadoes, flooding and wildfires, to name a few. But the most dangerous type of natural disaster, and also the most unpredictable, is the earthquake.
Researchers at the U.S. Geological Survey estimate that several million earthquakes rattle the globe each year. That may sound scary, but people dont feel many of the tremors because they happen in remote and unpopulated regions. Many quakes happen under the ocean, and others have a very small magnitude, or shaking intensity.
A magnitude 5.8 earthquake that struck central Virginia the afternoon of August 23, 2011, was felt from central Georgia to southeastern Canada. In many urban areas, including Washington, D.C., and New York City (Wall Street shown), people crowded the streets while engineers inspected buildings. Credit: Wikimedia/Alex Tabak
Scientists know about small, remote quakes only because of very sensitive electronic devices called seismometers. These devices detect and measure the size of ground vibrations produced by earthquakes. Altogether, USGS researchers use seismometers to identify and locate about 20,000 earthquakes each year.
Although earthquakes can happen anywhere in the world, really big quakes occur only in certain areas. The largest ones register a magnitude 8 or higher and happen, on average, only once each year. Such big ones typically occur along the edges of Earths tectonic plates.
Tectonic plates are huge pieces of Earths crust, sometimes many kilometers thick. These plates cover our planets surface like a jigsaw puzzle. Often, jagged edges of these plates temporarily lock together. When plates jostle and scrape past each other earthquakes occur. On average, tectonic plates move very slowly about the same speed as your fingernails grow.
But sometimes earthquakes rumble through portions of the landscape far from a plates edges. Although less expected, these mid-plate tremors can do substantial damage. Some of the biggest known examples rattled the eastern half of the United States two centuries ago. Today, scientists are still puzzling over why the quakes occurred and when similar ones might occur.
16. Oklahoma is an area often experiencing natural disasters.
A. Right B. Wrong C. Not mentioned
17. The earthquake is the most unpredictable natural disaster.
A. Right B. Wrong C. Not mentioned
18. Few earthquakes happen without peoples awareness.
A. Right B. Wrong C. Not mentioned
19. Seismometers can identify and locate most of the earthquakes in China.
A. Right B. Wrong C. Not mentioned
20. Big earthquakes of a magnitude 8 0r higher seldom happen far from the edges of tectonic plates.
A. Right B. Wrong C. Not mentioned
21. Whenever tectonic plates move, earthquakes happen.
A. Right B. Wrong C. Not mentioned
22. The earthquake that hit the eastern half of the United States two centuries ago is the biggest mid-plate one in history.
A. Right B. Wrong C. Not mentioned
英语四级一般词汇J字母开头的单词
英语四级高频词汇精华版首字母A单词21
英语四级高频词汇精华版首字母B单词1
英语四级一般词汇I字母开头的单词
英语四级高频词汇精华版首字母A单词13
英语四级高频词汇测试题测试20
英语四级高频词汇精华版首字母A单词11
玩中记英语四级单词257
英语四级一般词汇W字母开头的单词
英语四级高频词汇精华版首字母A单词17
英语四级高频词汇测试题测试17
英语四级一般词汇L字母开头的单词
英语四级高频词汇测试题测试16
英语四级高频词汇精华版首字母A单词16
英语四级一般词汇K字母开头的单词
英语四级高频词汇精华版首字母A单词15
英语四级高频词汇精华版首字母A单词33
英语四级一般词汇Q字母开头的单词
英语四级高频词汇精华版首字母A单词14
英语四级高频词汇测试题测试5
玩中记英语四级单词255
英语四级高频词汇测试题测试11
英语四级高频词汇精华版首字母A单词6
英语四级一般词汇A字母开头的单词
英语四级一般词汇E字母开头的单词
英语四级一般词汇M字母开头的单词
3篇文章帮你搞定4级词汇
英语四级一般词汇N字母开头的单词
英语四级一般词汇R字母开头的单词
英语四级高频词汇测试题测试12
不限 |
英语教案 |
英语课件 |
英语试题 |
不限 |
不限 |
上册 |
下册 |
不限 |