第二部分：閱讀判斷(第16~22題，每題1分，共7分)
下面的短文后列出了7個(gè)句子，請(qǐng)根據(jù)短文的內(nèi)容對(duì)每個(gè)句子做出判斷;如果該句提供的是正確信息，請(qǐng)選擇A;如果該句提供的是錯(cuò)誤信息，請(qǐng)選擇B;如果該句的信息文中沒(méi)有提及，請(qǐng)選擇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 don’t 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 Earth’s tectonic plates.
Tectonic plates are huge pieces of Earth’s crust, sometimes many kilometers thick. These plates cover our planet’s 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 plate’s 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
【答案】：B
17. The earthquake is the most unpredictable natural disaster.
A. Right B. Wrong C. Not mentioned
【答案】：C
18. Few earthquakes happen without people's awareness.
A. Right B. Wrong C. Not mentioned
【答案】：B
19. Seismometers can identify and locate most of the earthquakes in China.
A. Right B. Wrong C. Not mentioned
【答案】：C
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
【答案】：A
21. Whenever tectonic plates move, earthquakes happen.
A. Right B. Wrong C. Not mentioned
【答案】：B
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
【答案】：C
第三部分：概括大意和完成句子(第23~30題，每題1分，共8分)
下面的短文后有2項(xiàng)測(cè)試任務(wù)：(1)第23~26題要求從所給的6個(gè)選項(xiàng)中為指定段落每段選擇1個(gè)小標(biāo)題;(2)第27~30題要求從所給的6個(gè)選項(xiàng)中為每個(gè)句子確定一個(gè)最佳選項(xiàng)。
Learn about Light
1 Ancient civilizations were amazed by the existence of light for thousands of years. The Greek philosophers believed that light was made up of countless, tiny particles that enter the human eye and create what we call vision. However, Empedocles and a Dutch scientist named Christian Huygens believed that light was like a wave. According to them, light spread out and travelled like a straight line. This theory was accepted during the 19th century.
2 ln 1905, Albert Einstein published a research paper in which he explained what is referred to as the photoelectric effect. This theory explains that particles make up light. The particles Einstein was referring to are weightless bundles(束)of electromagnetic(電磁)energy called photons(光子). Today, scientists agree that light has a dual(二重) nature — it is part particle and part wave. It is a form of energy that allows us to see things around us.
3 Things that give off light are known as sources of light. During the day, the primary source of light is the sun. Other sources of light include stars, flames, flashlights, street lamps and glowing gases in glass tube.
4 When we draw the way light travels we always use straight lines. This is because normally light rays travel in a straight line. However, there are some instances that can change the path and even the nature of light. They are reflection, absorption, interference (干擾), etc.
5 Physicists have attempted to measure the speed of light since the early times. In 1849, Hippolyte Fizeau conducted an experiment by directing a beam of light to a mirror located kilometers away and placed a rotating cogwheel(旋轉(zhuǎn)齒輪)between the beam and the mirror. From the rate of rotation of the wheel, number of wheel’s teeth and distance of the mirror, he was able to calculate that the speed of light is 313 million meters per second. In a vacuum(真空),however, the speed of light is 299,792,458 meters per second. This is about a million times faster than the speed of an airplane.
23. Paragraph 2 ___A___
24. Paragraph 3 ___B___
25. Paragraph 4 ___D___
26. Paragraph 5 ___C___
A. How is the nature of light explained today?
B. What are sources of light?
C. How did physicists measure the speed of light?
D. How does light travel?
E. How did people think of light years ago?
F. What causes a shadow?
27. Objects are visible to the human eye as light is __D____
28. Stars, flames, flashlights are some examples of ___A___
29. Some instances such as reflection and absorption can change ___C___
30. Hippolyte Fizeau conducted an experiment to measure ___E___
A. sources of light
B. the speed of light
C. the path of light
D. a straight line
E. a beam of light
F. a form of energy