The Haiti earthquake at the beginning of 2010 is believed more than 100,0130 people and makes millions homeless, it perhaps the most destroying earthquake in history. A. to kill; making B. to have kil 题目和参考答案——青夏教育精英家教网—

The Haitian tsunami gave scientists a chance to find out how well vital and potentially life-saving warning systems were working.

Noaa’s Pacific Marine Environmental Laboratory has developed a warning system that picks up signals of tsunamis directly from the sea-floor.

It is called Dart-the Deep-ocean Assessment and Reporting of Tsunamis. If seismometers(地震仪) detect an earthquake, the Dart buoys（浮标） will determine what is happening to sea levels, and whether a big wave might be on the way. This information is then sent via satellite to a central location which can organize an alarm. Within 50 minutes of the Haiti earthquake, this system was able to issue an alarm to other countries in the Caribbean to say that a small tsunami had been caused to start, and that was unlikely to affect them.

Dr Bernard said, “The first 30 minutes following the earthquake, we have to rely on education.” The critical aspects of this are: do you feel the earthquake; do you see the ocean draw down; and do you hear that loud roar? If so, you should run for higher ground.

“But after the first few minutes, it’s crucial that we have the technology—the measurements to avoid unnecessary evacuation(疏散撤离)and tell people when it is safe to return.” Right now, there are 50 of these Dart buoys all over the globe—four of which are in the Caribbean.

Dr Bernard says that, with 75 to 100 buoys worldwide, this system could provide global tsunami warnings within one hour.

“That’s for everywhere we know that tsunamis have happened. If we wanted to go to half an hour detection, we could probably double or multiply by four times that number,” he said.

“In some countries, including Haiti, there may not be enough resources to support a specific tsunami warning centre for something that happens so infrequently.”

He said that this system was relatively inexpensive to fix and operate.

“To get it down to an hour for everywhere affected would cost $50m initial investment and then 10% of that to maintain it,” he said.

“That’s not a terribly expensive system considering the potential savings of lives.”

In which section would you probably read the passage in a newspaper?

A. Education and Society

B. Culture and Leisure

C. Science and Technology

D. Health and Medicine

How many buoys would at least be needed for global tsunami warnings within half an hour?

A. 150

B. 100

C. 75

D. 50

Which of the following can be inferred from the passage?

A. The system can warn people of the coming of tsunami directly after the earthquake.

B. We can’t escape the danger of tsunami within 30 minutes following the earthquake.

C. Each country can easily afford a tsunami warning centre though it seldom happens.

D. It’s worthwhile to spend money on the warning system for possible savings of lives.

Which of the following would be the best title for this passage?

A. Tsunami Assessment

B. Earthquake detecting

C. Disaster Warning System

D. Life Saving System

There are hundreds of people desperate to _______ an orphan whose parents were killed in the Haiti earthquake.

A. receive B. educate C. adopt D. abuse

First the ground shook in Haiti, then Chile and Turkey. The earthquakes keep coming hard and fast this year, causing people to wonder if something evil (邪恶的) is happening underfoot.

It’s not.

While it may seem as if there are more earthquakes occurring, there really aren’t. the problem is what’s happening above ground, not underground, experts say.

More people are moving into big cities that happen to be built in quake zones, and they’re rapidly putting up buildings that can’t withstand (经受) earthquakes, scientists believe.

And around-the-clock news coverage (报道) and better earthquake monitoring make it seem as if earthquakes are ever-present.

“I can definitely tell you that the world is not coming to an end,” said Bob Holdsworth, an expert in tectonics (筑造学) at Durharn University in the UK.

A 7.0 magnitude quake in January killed more than 230,000 people in Haiti. Last month, an 8.8 magnitude quake--- the fifth-strongest since 1900—killed more than 900 people in Chile. And two weeks ago, a 6.0 magnitude quake struck rural eastern Turkey, killing at least 57 people.

On average, there are 134 earthquakes a year that have a magnitude between 6.0 and 6.9, according to the US Geological Survey. This year is off to a fast start with 40 so far—more than in most years for that time period.

But that’s because the 8.8 quake in Chile generated a large number of strong aftershocks, and so many quakes this early in the year skews (扭曲) the picture, said Paul Earle, a US seismologist (地震学家).

Also, it’s not the number of quakes, but their devastating (破坏性的) impacts that gain attention, with the death tolls (死亡人数) largely due to construction standards and crowding, Earle added. “The standard mantra (咒语) is earthquakes don’t kill people, buildings do, ” he said.

There have been more deaths over the past decades from earthquakes, said University of Colorado geologist Roger Bilham. In an opinion column last month in the journal Nature, Bilham called for better construction standards in the world’s big cities.

Of the 130 cities worldwide with populations of more than 1 million, more than half are prone (倾向于) to earthquakes, Bilham said.

Developing nations, where populations are booming, don’t pay attention to earthquake preparedness, Bilham said.” If you have a problem feeding yourself, you’re not really going to worry about earthquakes.”

Another reason quakes seem worse is that we’re paying attention more. The Haiti earthquake quickly followed by the 8.8 in Chile made everyone start to think.

But it won’t last, said US disaster researcher Deniis Mileti. “People are paying attention to the violent planet we’ve always lived on,” Mileti said.” Come back in another six months if there has been no earthquakes, most people will have forgotten it again. ”

73. What is the main idea of the article?

A. The number of earthquakes is increasing this year.

B. The reasons why earthquakes are so devastating.

C. The reasons why recent earthquakes have struck large cities.

D. Why earthquakes seem to be more serious this year.

74. Which of the following is NOT a reason for the seeming increase in earthquakes this year，

according to the article?

A. Greater underground activity.

B. A larger number of buildings prone to damage during earthquakes.

C. Around-the-clock news coverage.

D. Better earthquake monitoring.

75. According to the article, it is safe to say that ______.

A. there is an evil force beneath the world’s surface

B. large cities are always built in quake zones

C. enough attention has been paid to reducing the impact of earthquakes

D. the earthquake in Chili caused many aftershocks.

76. According to the article, the greater damage of earthquakes this year can be mainly caused by ______.

A. the occurrence of larger earthquakes

B. insufficient warnings about earthquakes

C. poor construction standards and overcrowding

D. an increase in large cities