Scientists in the United States have developed a method that may help to predict earthquakes earlier. They say it could give people who live in deadly earthquake areas enough warning to leave before an earthquake hits.
Currently, the most modem systems for predicting earthquakes find them only a short time before the event. Like most strong earthquakes , the one that hit Southwestern China in May was not identified early enough for people to flee the area. That earthquake killed more than 69,000 people, which rated eight point zero in intensity.
But scientists who study earthquakes are reporting that new technology could measure very small changes in the Earth's surface. Their report was published this month in Nature magazine.
Fenglin Niu is a seismologist in Rice University in Houston, Texas. He and his team performed experiments along California's San Andreas Fault, an area famous for its many earthquakes. The team placed highly sensitive electrical devices about one kilometer below ground in two different places. The devices were able to measure even small changes in air pressure on the Earth's surface. The scientist says such changes are caused when rocks push together, forcing air out of small cracks in the rock. When this happens, seismic waves travel faster than usual through the rock.
The experiment was performed near Parkfield，California. Two earthquakes hit the area in late 2005. The first took place on December 25. A smaller earthquake struck five days later. The scientists noted changes in the Earth's surface about ten hours before the first earthquake struck. That earthquake rated three in intensity. They then found similar changes taking place two hours before the other earthquake struck five days later.
If additional tests confirm the changes are linked to earthquakes ，the scientists believe that their equipment could be used for early warning systems. A system that provides a warning signal ten hours before a major earthquake could help move people from the area and save lives.
The scientists now hope they can find earthquakes with even greater intensity by placing their equipment deeper in the ground. What is the best title for the passage?
| A．A new way to help predict earthquakes |
| B．The earthquake in Southwestern China |
| C．A better understanding of earthquakes |
| D．Early warning systems of earthquakes |
If the new way works, ______ .
| A．fewer earthquakes will break out |
| B．rescue workers can save more buried people in ruins |
| C．a warning can be given at least ten days before the major earthquake |
| D．fewer people will be killed in an earthquake |
The devices can predict the earthquake by ______ .
| A．reaching the center of the earthquake |
| B．detecting the temperature changes in the Earth's crust |
| C．measuring changes in air pressure on the Earth's surface |
| D．recording sound waves under the ground |
We can infer that ______ .
| A．the equipment is perfect enough to be used in practice |
| B．it is unknown if greater earthquakes can be predicted by the equipment |
| C．the deeper the equipment is placed, the less accurate the measurement is |
| D．the equipment has helped save many lives in the earthquake in Sichuan in May |
Last year more than one million Filipinos worked abroad as servants,nurses,sailors and in other difficult but low-paid jobs.Southeast Asians leave their poorer countries for their richer neighbours.
Many of these wage-earners return in the end.In the meantime,they send home huge amounts of money—in the Philippines’ case,over 10% of its GDP.Between January and November,the amount was up 18% on the same period of 2005.Poverty and unemployment are still high in the Philippines and other labour-exporting(劳务输出) countries.They would be far worse but for this outflow of bodies and inflow of dollars.As for those Asian countries that import(输入) labour,as in Europe,falling birth rates mean they are going to need more foreign workers.
On January 13th leaders of the Association of Southeast Asian Nations(ASEAN) signed an agreement to help migrant(流动的) workers—with the realization that the flow of labour between their countries is a growing problem that they cannot blame on outsiders.A 2005 study showed that 8.4 million Southeast Asians worked outside their home countries,but this did not include the huge numbers of Indonesians doing so without papers.So the true total is probably rather higher.
Of the ten ASEAN countries,the Philippines,Indonesia,Myanmar,Cambodia,Vietnam and Laos export labour,Singapore and Brunei import it,and Thailand and Malaysia do both.Sziraczki of the UN’s International Labour Organization points out that,in the next ten years,the total labour force of the worker-exporting countries should grow by about a third.It makes sense to work on the problem before it gets out of control.
People in the receiving countries seem to be worried about competition for their jobs.Most Thais said their government should admit(准入) no more foreign workers,and a few thought otherwise.Even in Singapore,just over half of people are against admitting more foreign workers.Malaysians think that the increase in foreign workers has worsened crime rates(犯罪率).It can be inferred from the case of the Philippines that______.
| A．the country is Asia’s main source of migrant workers |
| B．labour exports lead to a 10% growth of its GDP |
| C．the outflow of labour helps solve its social problems |
| D．the country both exports and imports labour force |
The flow of labour is a growing problem because______.
| A．there is a greater flow of labour than reported |
| B．more Indonesians work abroad without papers |
| C．some countries suffer from low birth rates |
| D．the ASEAN is against admitting foreign workers |
For the labour-importing countries,the flow of labour may lead to______.
| A．higher birth rates |
| B．lower crime rates |
| C．greater money inflows |
| D．stronger job competition |
The writer of the text seems to______.
| A．support the flow of labour between countries |
| B．report fairly on the question of labour flow |
| C．express his worries over the ASEAN’s decision |
| D．regard the outflow of labour as a serious problem |
Teens don’t understand the big fuss(小题大做).As the first generation to grow up in a wired world,they hardly know a time when computers weren’t around,and they eagerly catch the chance to spend hours online,chatting with friends.So what?
But researchers nationwide are increasingly worried that teens are becoming isolated(孤寂),less skillful at person-to-person relationships,and perhaps numb(麻木) to the cheatings that are so much a part of the e-mail world.“And a teen’s sense of self and values may be changed in a world where personal connections can be limitless,”said Sherry Turkle.
Another researcher,Robert Kraut,said he’s worried about the “opportunity costs”(机会成本) of so much online time for youths.He found that teens who used computers,even just a few hours a week,showed increased signs of loneliness and social isolation.“Chatting online may be better than watching television,but it’s worse than hanging out(闲逛) with real friends,”he said.
Today’s teens,however,don’t see anything strange in the fact that the computer takes up a central place in their social lives.“School is busy and full of pressure.There’s almost no time to just hang out,”said Parker Rice,17.“Talking online is just catch-up time.”
Teens say they feel good about what they say online or taking the time to think about a reply.Some teens admit that asking someone for a date,or breaking up,can be easier in message form,though they don’t want to do so.But they insist there’s no harm.The researchers argue that______.
| A．teens may develop a different sense of values |
| B．nothing is wrong with teens’ chatting online |
| C．teens can manage their social connections |
| D．spending hours online does much good to teens |
Teens think that talking online can help them______.
| A．use computers properly |
| B．improve their school work |
| C．develop an interest in social skills |
| D．reduce their mental pressures |
The text mainly deals with______.
| A．teens’ pleasant online experience |
| B．teens’ computer skills and school work |
| C．the effects of the computer world on teens |
| D．different opinions on teens’ chatting online |
The purpose of the text is to______.
| A．describe computer research results |
| B．draw attention to teens’ computer habits |
| C．suggest ways to deal with problem teens |
| D．discuss problems teens have at school |
When former American President Bill Clinton travelled to South Korea to visit President Kim Young Sam,he repeatedly referred to the Korean president’s wife as Mrs.Kim.By mistake, President Clinton’s advisers thought that Koreans have the same naming customs as the Japanese. Clinton had not been told that,in Korea,wives keep their family names.President Kim Young Sam’s wife was named Sohn Myong Suk.Therefore,she should be addressed(称谓) as Mrs.Sohn.
President Clinton arrived in Korea directly after leaving Japan and had not changed his culture gears.His failure to follow Korean customs gave the impression that Korea was not as important to him as Japan.
In addition to Koreans,some Asian husbands and wives do not share the same family names.This practice often puzzles(使困惑) English-speaking teachers when talking with a pupil’s parents.They become puzzled about the student’s correct last name.Placing the family name first is common among a number of Asian cultures.
Mexican naming customs are different as well.When a woman marries,she keeps her family name and adds her husband’s name after the word de(of).This affects(影响) how they fill in forms in the United States.When requested to fill in a middle name,they generally write the father’s family name.But Mexicans are addressed by the family name of the mother.This often causes puzzlement.
Here are a few ways to deal with such difficult situations:don’t always think that a married woman uses her husband’s last name.Remember that in many Asian cultures,the order of first and last names is reversed(颠倒).Ask which name a person would prefer to use.If the name is difficult to pronounce,admit it,and ask the person to help you say it correctly.The story of Bill Clinton is used to______.
| A．improve US-Korean relations |
| B．introduce the topic of the text |
| C．describe his visit to Korea |
| D．tell us how to address a person |
The word “gears” in Paragraph 2 is closest in meaning to______.
| A．action plans | B．naming customs |
| C．travel maps | D．thinking patterns |
When a woman marries in Korea,she______.
| A．continues to use her family name |
| B．uses her husband’s given name |
| C．shares her husband’s family name |
| D．adds her husband’s given name to hers |
To address a married woman properly,you’d better______.
| A．use her middle name |
| B．use her husband’s first name |
| C．ask her which name she likes |
| D．change the order of her names |
When people want to know about the weather,they usually go to their radios,TVs, newspapers,or to the Internet.However,you can also find many weather signs among wildlife, because of their highly developed senses.Drops in air pressure(压力) produce an effect on small animals in many ways.Mice and deer are good weather indicators.People who spend a lot of time outdoors have observed that,before a storm,field mice come out of their holes and run around.Deer leave high ground and come down from the mountains.
Birds are especially good weather indicators because they also show the effect of a pressure drop in many ways.For example,some birds become irritable(急躁的) and quarrelsome and will fight over a piece of bread.Other birds chirp(叽叽喳喳) and sing just before a storm.It seems they know they won’t get another chance for an hour or two.Birds also seek safe places before a storm.You will sometimes see birds settling in trees or gathering together on a wire close to a building.Pre-storm low pressure makes the air so thin that birds have difficulty flying.
It is unusual to see many birds flying overhead in the summertime,rather than during the periods in the spring or autumn.Watch for other weather signs if you see this.If they fly in the wrong direction,they may be flying ahead of a storm.
By paying closer attention to some important signs in nature,we can become better prepared for any kind of weather.The word “indicators” in Paragraph 1 probably means______.
| A．maps | B．services |
| C．signs | D．stations |
There will be a storm if birds______.
| A．make more noise than usual |
| B．fly in different directions |
| C．come down from tall trees |
| D．share a piece of bread |
How can birds sense the coming of a storm?
| A．By feeling a drop in air temperature. |
| B．By noticing the change of wind directions. |
| C．By feeling a drop in air pressure. |
| D．By noticing the movements of other animals. |
The best title for the text would be______.
| A．Signs of a Storm |
| B．Drops in Air Pressure |
| C．Animals’ Sharp Senses |
| D．Nature’s Weather Signs |
Louis Armstrong had two famous nicknames(绰号).Some people called him Bagamo.They said his mouth looked like a large bag.Musicians often called him Pops,as a sign of respect for his influence(影响) on the world of music.
Born in 1901 in New Orleans,he grew up poor,but lived among great musicians.Jazz was invented in the city a few years before his birth.Armstrong often said,“Jazz and I grew up together.”
Armstrong showed a great talent(天赋) for music when he was taught to play the cornet(短号) at a boy’s home.In his late teens,Armstrong began to live the life of a musician.He played in parades,clubs,and on the steamboats that travelled on the Mississippi River.At that time,New Orleans was famous for the new music of jazz and was home to many great musicians.Armstrong learned from the older musicians and soon became respected as their equal.
In 1922 he went to Chicago.There,the tale of Louis Armstrong begins.From then until the end of his life,Armstrong was celebrated and loved wherever he went.Armstrong had no equal when it came to playing the American popular song.
His cornet playing had a deep humanity(仁爱) and warmth that caused many listeners to say,“Listening to Pops just makes you feel good all over.”He was the father of the jazz style(风格) and also one of the best-known and most-admired people in the world.His death,on July 6,1971,was headline news around the world.Armstrong was called Pops because he______.
| A．looked like a musician |
| B．was a musician of much influence |
| C．showed an interest in music |
| D．travelled to play modern music |
The third paragraph is developed______.
| A．by space | B．by examples |
| C．by time | D．by comparison |
Which statement about Armstrong is true?
| A．His tale begins in New Orleans. |
| B．He was born before jazz was invented. |
| C．His music was popular with his listeners. |
| D．He learned popular music at a boy’s home. |
Which would be the best title for the text?
| A．The Invention of the Jazz Music |
| B．The Father of the Jazz Style |
| C．The Making of a Musician |
| D．The Spread of Popular Music |