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A powerful earthquake struck an area near the northern coast of Chile on Wednesday. The earthquake came a day after an even stronger quake 1 the area. The earlier quake was 2 for at least six deaths.The United States Geological Survey says a 7.8 3 aftershock hit northern Chile late Wednesday night, local time. U.S. officials said the aftershock was centered about 23 kilometers south of the port of Iquique. They said it struck at a depth of 20 kilometers below sea 4 .The aftershock led Chilean officials to order thousands of people away from 5 areas. It also led to warnings of high tsunami waves in parts of the Pacific Ocean. The orders and tsunami warnings were later 6 . Chilean police and soldiers guarded coastal communities to prevent 7 on homes and businesses. Television video showed damaged buildings in Iquique. But officials found surprisingly 8 damage from the quake. President Michelle Bachelet visited the 9 area. She spoke to the nation about the disaster. She also said 10 measures have been taken to protect lives and property. Earthquakes are 11 common in Chile. They are also a fact of life in the American state of California. Scientists say a quake of magnitude eight or higher could strike along the San Andreas Fault in coming years. The San Andreas Fault extends from north to south through California. Thousands died in its last major rupture, or movement. 12 took place near the city of San Francisco in 1906.Smaller earthquakes also can be 13 if they strike close to heavily 14 areas. Safety experts say every home needs to have a plan of action, supplies food and water, and emergency equipment.Kate Hutton is a seismologist at the California Institute of Technology. She specializes in the study of earthquakes. Kate Hutton admits there is no way to 15 earthquakes, so being prepared is the best defense.

A. altitude
B. rank
C. magnitude
D. height

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A powerful earthquake struck an area near the northern coast of Chile on Wednesday. The earthquake came a day after an even stronger quake 1 the area. The earlier quake was 2 for at least six deaths.The United States Geological Survey says a 7.8 3 aftershock hit northern Chile late Wednesday night, local time. U.S. officials said the aftershock was centered about 23 kilometers south of the port of Iquique. They said it struck at a depth of 20 kilometers below sea 4 .The aftershock led Chilean officials to order thousands of people away from 5 areas. It also led to warnings of high tsunami waves in parts of the Pacific Ocean. The orders and tsunami warnings were later 6 . Chilean police and soldiers guarded coastal communities to prevent 7 on homes and businesses. Television video showed damaged buildings in Iquique. But officials found surprisingly 8 damage from the quake. President Michelle Bachelet visited the 9 area. She spoke to the nation about the disaster. She also said 10 measures have been taken to protect lives and property. Earthquakes are 11 common in Chile. They are also a fact of life in the American state of California. Scientists say a quake of magnitude eight or higher could strike along the San Andreas Fault in coming years. The San Andreas Fault extends from north to south through California. Thousands died in its last major rupture, or movement. 12 took place near the city of San Francisco in 1906.Smaller earthquakes also can be 13 if they strike close to heavily 14 areas. Safety experts say every home needs to have a plan of action, supplies food and water, and emergency equipment.Kate Hutton is a seismologist at the California Institute of Technology. She specializes in the study of earthquakes. Kate Hutton admits there is no way to 15 earthquakes, so being prepared is the best defense.

A. light
B. strange
C. severe
D. dramatic

The California region boasts a wide variety of climates and geographical features, rivaling any other area of comparable dimensions. Nearly all but the eastern-edge California Native Americans lived where environmental conditions were favorable, making food relatively accessible. Along the Pacific Coast, they hunted fish and sea mammals by boat. Included were such California tribes as the Chumash, Yurok and Pomo. The Maidu and Pomo principally ate acorns, which have a higher calorie rating than wheat. They pounded the hard nuts with stones and washed out the bitter taste with water.The Pomo crafted what were arguably the finest baskets in all of indigenous America. They made baskets as small as a thimble and as big as a yard in width. They made watertight baskets for cooking acorn mush and seed gruel, as well as for carrying and storing food. They wove especially beautiful baskets for presents and as offerings to forebears. Some were bedecked with colorful bird feathers and shells. Their skill also was applied to trays, boats, headgear and baby carriers, such as a wickerwork cradleboard in which an infant spent his first year. Their mothers wore hats that resembled bowl-shape baskets.The California natives lived in communities numbering up to 2,000 with dwellings arrayed in groups. A house consisted of a round frame covered with grass. There was a skylight in the roof and the beds were made on skin-covered frames—each with a partition for privacy. In the center of the floor, they made a cook fire for seeds, nuts, fish and other foods. More than 100 languages flourished in California before European contact; most are gone today. What is the Pomo good at

A. Making baskets.
B. Hunting for food.
C. Taking care of babies.
D. Making presents.

"I sometimes get up at three or four in the morning and I surf the net.""I often check my e-mail forty times a day.""I often spend more than three hours during one time on the net.""I spend more time in chat rooms than with my "real-life" friends."Do you know any people like these They are part of a new addiction (瘾) called Internet addiction. Internet addicts spend at least thirty to forty hours online every week. The use of the Internet can be an addiction like drug use. People lose control of the time they spend on the Internet.For example, one college student was missing for several days. His friends were worried, and they called the police. The police found the student in the computer lab: he was surfing the net for several days straight.Studies show that about 6 to 10% of Internet users become addicted. And people worry about the teens because the Internet is changing the playing field for some of them. They spend more time in cyberspace than in the real world of friends and family.Is "surfing the net" a hobby or an addiction for you You may have a problem if you have these symptoms (症状):●You do not go to important family activities or you do not do school work because you like to spend hours on the Internet.●You can"t wait for your next online time.●You plan to spend a short time online, but then you spend several hours.●You go out with your friends less and less. How does the writer describe the addicts" use of Internet

A. It is something like keeping drugs.
B. It is a way of producing drugs.
C. It is like taking drugs.
D. It is terrible to imagine.

近一段时间以来,网络上开始热炒有关健身对健康问题的影响。有专家认为:适度的健身,是保持身体健康的重要原因,而过量的健身,不可避免地会对身体造成损害。 以下各项是该专家想要表达的基本含义,除了哪项

A. 只有过量地健身,才会导致对身体的损害。
B. 只要过量地健身,就会导致对身体的损害。
C. 只有适度地健身,才会保持对身体的健康。
D. 适度地健身,是保持身体健康的前提。
E. 过量地健身,就会对身体造成损害。

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