A person's wealth is often in inverse proportion to their happiness.
A:equal
B:certain
C:large
D:opposite
A:equal
B:certain
C:large
D:opposite
共用题干
Sharks Perform a Service for Earth's Waters
It is hard to get people to think of sharks as anything but a deadly enemy.They are thought to ______(51)people frequently .But these fish perform a______(52)service for earth's waters and for human beings .Yet business and sport fishing are threatening their______(53).Some sharks are at______(54)of disappearing from earth.
Warm weather may influence both fish and shark activity.Many fish swim near coastal areas ______(55)their warm waters. Experts say sharks may follow the fish into the same areas, ______(56)people also swim.In fact,most sharks do not purposely charge at or bite humans.
They are thought to mistake a person______(57)a sea animal,such as a seal or sea lion.That is why people should not swim in the ocean when the sun goes down or comes up .Those are the ______(58)when sharks are looking for food.Experts also say that bright colors and shiny jewelry may cause sharks to attack.
A shark has an extremely good sense of smell.It can find small amounts of substances in water,such as blood,body liquids and______(59)produced by animals.These powerful ______(60)help sharks find their food.Sharks eat fish,any______(61)sharks,and plants that live in the ocean.
Medical researchers want to learn more about the shark's body defense and immune systems ______(62)disease.Researchers know that sharks______(63)quickly from injuries.They study the shark in hopes of finding a way to fight human disease.
Sharks are important for the world's______(64).They eat injured and diseased fish. Their hunting activities mean that the numbers of other fish in ocean waters do not become too ______(65).This protects the plants and other forms of life that exist in the oceans.
55._________
A:. because
B: since
C: because of
D: by reason that
Sharks Perform a Service for Earth's Waters
It is hard to get people to think of sharks as anything but a deadly enemy.They are thought to ______(51)people frequently .But these fish perform a______(52)service for earth's waters and for human beings .Yet business and sport fishing are threatening their______(53).Some sharks are at______(54)of disappearing from earth.
Warm weather may influence both fish and shark activity.Many fish swim near coastal areas ______(55)their warm waters. Experts say sharks may follow the fish into the same areas, ______(56)people also swim.In fact,most sharks do not purposely charge at or bite humans.
They are thought to mistake a person______(57)a sea animal,such as a seal or sea lion.That is why people should not swim in the ocean when the sun goes down or comes up .Those are the ______(58)when sharks are looking for food.Experts also say that bright colors and shiny jewelry may cause sharks to attack.
A shark has an extremely good sense of smell.It can find small amounts of substances in water,such as blood,body liquids and______(59)produced by animals.These powerful ______(60)help sharks find their food.Sharks eat fish,any______(61)sharks,and plants that live in the ocean.
Medical researchers want to learn more about the shark's body defense and immune systems ______(62)disease.Researchers know that sharks______(63)quickly from injuries.They study the shark in hopes of finding a way to fight human disease.
Sharks are important for the world's______(64).They eat injured and diseased fish. Their hunting activities mean that the numbers of other fish in ocean waters do not become too ______(65).This protects the plants and other forms of life that exist in the oceans.
55._________
A:. because
B: since
C: because of
D: by reason that
共用题干
Vision
Human vision like that of other primates（灵长目）has evolved in an arboreal（丛林）environment.______(46)
In the course of evolution,members of the primate line have acquired large eyes while the nose has shrunk.______ (47) Of mammals（哺乳动物）only humans and some primates enjoy color vision.______(48)Horses live in a single-color world.
Light visible to human eyes,however,occupies only a very narrow band in the whole electromagnetic spectrum（光谱）.Ultraviolet rays（紫外线）are invisible to humans though ants and honeybees are sensitive to them.______(49)The world would look terribly different if human eyes were、 sensitive to infrared radiation（红外线）.Then instead of the darkness of night,we would be able to move easily in a strange shadowless world.______(50)
But human eyes excel in other ways. They are in fact remarkably discerning in color gradation. The color sensitivity of normal human vision is rarely surpassed even by complicated technical devices.
_________（50）
A:Humans have no direct perception of infrared rays.
B:In the dense complex world of a tropical forest,it is more important to see well than to develop an acute sense of smell.
C:That gives the eye a wilder view.
D:The red flag is black to the bull.
E:There are different mammals in tropical forest.
F: In this world,objects glowed with varying degrees of intensity.
Vision
Human vision like that of other primates（灵长目）has evolved in an arboreal（丛林）environment.______(46)
In the course of evolution,members of the primate line have acquired large eyes while the nose has shrunk.______ (47) Of mammals（哺乳动物）only humans and some primates enjoy color vision.______(48)Horses live in a single-color world.
Light visible to human eyes,however,occupies only a very narrow band in the whole electromagnetic spectrum（光谱）.Ultraviolet rays（紫外线）are invisible to humans though ants and honeybees are sensitive to them.______(49)The world would look terribly different if human eyes were、 sensitive to infrared radiation（红外线）.Then instead of the darkness of night,we would be able to move easily in a strange shadowless world.______(50)
But human eyes excel in other ways. They are in fact remarkably discerning in color gradation. The color sensitivity of normal human vision is rarely surpassed even by complicated technical devices.
_________（50）
A:Humans have no direct perception of infrared rays.
B:In the dense complex world of a tropical forest,it is more important to see well than to develop an acute sense of smell.
C:That gives the eye a wilder view.
D:The red flag is black to the bull.
E:There are different mammals in tropical forest.
F: In this world,objects glowed with varying degrees of intensity.
共用题干
Scientists Develop Ways of Detecting Heart Attack
German researchers have___1___a new generation of defibrillators and earlywarning software aimed at offering heart patients greater protection___2___sudden death from cardiac arrest.
In Germany alone around 100,000 people die annually as a result of cardiac arrest and many of these cases___3___by disruption to the heart's rhythm. Those most at risk are pa- tients who have___4___suffered a heart attack,and for years the use of defibrillators has proved useful in diagnosing___ 5___ disruptions to heart rhythms and correcting them automat-ically by intervening within seconds. These devices___6___ a range of functions,such as that of pacemaker.
Heart specialists at Freiburg's University Clinic have now achieved a breakthrough with an implanted defibrillator ___7___of generating a six-channel electrocardiogram(ECG)within the body. This integrated system allows early diagnosis of___8___blood-flow problems and a pending heart attack. It will be implanted in patients for the first time this year. Meanwhile, researchers at the Fraunhofer Institute for Applied Mathematics in Kaiserslautern have developed new computer software that renders the evaluation of ECG data___9___.
The overwhelming___10___of patients at risk will not have an implanted defibrillator and must for this reason undergo regular ECGs.“Many of the current programs only ___11___ into account a linear correlation of the data. We are,however,making use___12___ a non-linear process that reveals the chaotic patterns of heart beats as an open and complex system,”
Hagen Knaf says,“___ 13___ changes in the heart beats over time can be monitored and indi- vidual variations in patients taken into account.”An old study of ECG data,based___14___ 600 patients who had suffered a subsequent heart attack,enabled the researchers to compare risks and to show___15___the new software evaluates the data considerably better.
12._________
A: of
B: with
C: for
D: in
Scientists Develop Ways of Detecting Heart Attack
German researchers have___1___a new generation of defibrillators and earlywarning software aimed at offering heart patients greater protection___2___sudden death from cardiac arrest.
In Germany alone around 100,000 people die annually as a result of cardiac arrest and many of these cases___3___by disruption to the heart's rhythm. Those most at risk are pa- tients who have___4___suffered a heart attack,and for years the use of defibrillators has proved useful in diagnosing___ 5___ disruptions to heart rhythms and correcting them automat-ically by intervening within seconds. These devices___6___ a range of functions,such as that of pacemaker.
Heart specialists at Freiburg's University Clinic have now achieved a breakthrough with an implanted defibrillator ___7___of generating a six-channel electrocardiogram(ECG)within the body. This integrated system allows early diagnosis of___8___blood-flow problems and a pending heart attack. It will be implanted in patients for the first time this year. Meanwhile, researchers at the Fraunhofer Institute for Applied Mathematics in Kaiserslautern have developed new computer software that renders the evaluation of ECG data___9___.
The overwhelming___10___of patients at risk will not have an implanted defibrillator and must for this reason undergo regular ECGs.“Many of the current programs only ___11___ into account a linear correlation of the data. We are,however,making use___12___ a non-linear process that reveals the chaotic patterns of heart beats as an open and complex system,”
Hagen Knaf says,“___ 13___ changes in the heart beats over time can be monitored and indi- vidual variations in patients taken into account.”An old study of ECG data,based___14___ 600 patients who had suffered a subsequent heart attack,enabled the researchers to compare risks and to show___15___the new software evaluates the data considerably better.
12._________
A: of
B: with
C: for
D: in
共用题干
Eastern Quakes can Trigger Big Shakes
In the first week of November 2011,people in central Oklahoma experienced more than two dozen earth-
quakes.The largest,a magnitude（量）5.6 quake,shook thousands of fans in a college football stadium,
caused cracks in a few buildings and scared 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 will see reports about all sorts
of natural disasters.But the most dangerous type of natural disaster,and also the most unpredictable,is the
earthquake.
Researchers at the US Geological Survey(USGS)estimate that several million earthquakes occur globally
each year. That may sound scary,but people don't feel many of them because they happen in remote and
unpopulated regions.Many quakes happen under the ocean,and others have a very small magnitude.
Scientists know about small,remote quakes only because of very sensitive electronic devices called seis-
mometers（地震仪）.These devices detect and measure the size of ground vibrations（震颤）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（构造板块）.
Tectonic plates are huge pieces of Earth ' s crust（外壳）,sometimes many kilometers thick. Often,
edges of these plates temporarily lock together. When plates push and scrape（擦）past each other earthquakes
occur. On average,tectonic plates move very slowly一about the same speed as your fingernails grow.
But sometimes earthquakes rumble（轰轰作响）through portions of the landscape far from a plate ' s
edges.Although less expected,these"mid-plate"small earthquakes can do substantial damage.Some of the
biggest known examples hit 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.
Whenever tectonic plates move,earthquakes happen.
A:Right
B:Wrong
C:Not mentioned
Eastern Quakes can Trigger Big Shakes
In the first week of November 2011,people in central Oklahoma experienced more than two dozen earth-
quakes.The largest,a magnitude（量）5.6 quake,shook thousands of fans in a college football stadium,
caused cracks in a few buildings and scared 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 will see reports about all sorts
of natural disasters.But the most dangerous type of natural disaster,and also the most unpredictable,is the
earthquake.
Researchers at the US Geological Survey(USGS)estimate that several million earthquakes occur globally
each year. That may sound scary,but people don't feel many of them because they happen in remote and
unpopulated regions.Many quakes happen under the ocean,and others have a very small magnitude.
Scientists know about small,remote quakes only because of very sensitive electronic devices called seis-
mometers（地震仪）.These devices detect and measure the size of ground vibrations（震颤）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（构造板块）.
Tectonic plates are huge pieces of Earth ' s crust（外壳）,sometimes many kilometers thick. Often,
edges of these plates temporarily lock together. When plates push and scrape（擦）past each other earthquakes
occur. On average,tectonic plates move very slowly一about the same speed as your fingernails grow.
But sometimes earthquakes rumble（轰轰作响）through portions of the landscape far from a plate ' s
edges.Although less expected,these"mid-plate"small earthquakes can do substantial damage.Some of the
biggest known examples hit 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.
Whenever tectonic plates move,earthquakes happen.
A:Right
B:Wrong
C:Not mentioned
共用题干
Wide World of Robots
Engineers who build and program robots have fascinating jobs. These researchers tinker （修补）with machines in the lab and write computer software to control these devices.
“They're the best toys out there,” says Howie Choset at Carnegie Mellon University in Pittsburgh. Choset is a roboticist,a person who designs,builds or programs robots.
When Choset was a kid,he was interested in anything that moved一cars,trains,animals. He put motors on Tinkertoy cars to make them move. Later,in high school,he built mobile robots similar to small cars.
Hoping to continue working on robots,he studied computer science in college. But when he got to graduate school at the California Institute of Technology in Pasadena,Choset's lab- mates were working on something even cooler than remotely controlled cars:robotic snakes. Some robots can move only forward,backward,left and right. But snakes can twist（扭曲）in many directions and travel over a lot of different types of terrain（地形）.“Snakes are far more interesting than the cars,”Choset concluded.
After he started working at Carnegie Mellon,Choset and his colleagues there began developing their own snake robots.Choset's team programmed robots to perform the same movements as real snakes,such as sliding and inching forward. The robots also moved in ways that snakes usually don't, such as rolling. Choset's snake robots could crawl（爬行） through the grass,swim in a pond and even climb a flagpole.
But Choset wondered if his snakes might be useful for medicine as well. For some heart surgeries,the doctor has to open a patient's chest,cutting through the breastbone. Recovering from these surgeries can be very painful. What if the doctor could perform the operation by instead making a small hole in the body and sending in a thin robotic snake?
Choset teamed up with Marco Zenati,a heart surgeon now at Harvard Medical School,to investigate the idea. Zenati practiced using the robot on a plastic model of the chest and then tested the robot in pigs.
A company called Medrobotics in Boston is now adapting the technology to surgeries on people.
Even after 15 years of working with his team's creations,”I still don't get bored of watching the motion of my robots,”Choset says.
Snake robots could move in only four directions.
A: Right
B: Wrong
C: Not mentioned
Wide World of Robots
Engineers who build and program robots have fascinating jobs. These researchers tinker （修补）with machines in the lab and write computer software to control these devices.
“They're the best toys out there,” says Howie Choset at Carnegie Mellon University in Pittsburgh. Choset is a roboticist,a person who designs,builds or programs robots.
When Choset was a kid,he was interested in anything that moved一cars,trains,animals. He put motors on Tinkertoy cars to make them move. Later,in high school,he built mobile robots similar to small cars.
Hoping to continue working on robots,he studied computer science in college. But when he got to graduate school at the California Institute of Technology in Pasadena,Choset's lab- mates were working on something even cooler than remotely controlled cars:robotic snakes. Some robots can move only forward,backward,left and right. But snakes can twist（扭曲）in many directions and travel over a lot of different types of terrain（地形）.“Snakes are far more interesting than the cars,”Choset concluded.
After he started working at Carnegie Mellon,Choset and his colleagues there began developing their own snake robots.Choset's team programmed robots to perform the same movements as real snakes,such as sliding and inching forward. The robots also moved in ways that snakes usually don't, such as rolling. Choset's snake robots could crawl（爬行） through the grass,swim in a pond and even climb a flagpole.
But Choset wondered if his snakes might be useful for medicine as well. For some heart surgeries,the doctor has to open a patient's chest,cutting through the breastbone. Recovering from these surgeries can be very painful. What if the doctor could perform the operation by instead making a small hole in the body and sending in a thin robotic snake?
Choset teamed up with Marco Zenati,a heart surgeon now at Harvard Medical School,to investigate the idea. Zenati practiced using the robot on a plastic model of the chest and then tested the robot in pigs.
A company called Medrobotics in Boston is now adapting the technology to surgeries on people.
Even after 15 years of working with his team's creations,”I still don't get bored of watching the motion of my robots,”Choset says.
Snake robots could move in only four directions.
A: Right
B: Wrong
C: Not mentioned
共用题干
第三篇
Human Space Exploration
While scientists are searching the cause of the Columbia disaster,NASA is moving
ahead with plans to develop a new craft that would replace shuttles（航天飞机）on space
station missions by 2012 and respond quickly to space station emergencies.
The space agency released the first set of mission needs and requirements several days
ago for the orbital space plane（轨道航天飞机）,which would be designed to transport a
crew of four to and from the International Space Station.
Although it includes few specifics, the plan states the orbiter（轨道航天飞机）will be
safer,cheaper and require less preparation time than the shuttle.It would be able to
transport four crew members by 2012一though it would be available for rescue missions by
2010.NASA says the craft should be able to transport injured or ill space station crew
members to "definitive（决定性的）medical care" within 24 hours.
The release of the requirements showed NASA remains focused on the long-term
priorities of space exploration,even as questions exist concerning the loss of Columbia and
its seven-member crew on February 1,2003.
Experts at Marshall Space Flight Center in Huntsville,Alabama,have been working for
years on a successor to the shuttle.The project,known as the Space Launch Initiative（倡
议）,was divided last year into two parts一one focusing on a future launch vehicle,the
other on a space station orbiter. The orbiter is expected to be ready sooner.
The program's managers say NASA officials have told them not to alter Space
Launch Initiative in light of the Columbia disaster.
U.S. President George W. Bush asked Congress for about U.S.$1 billion for Space
Launch Initiative in 2004,funds that would be almost equally split between the Orbital Space
Plane and Next Generation Launch Technology.
According to the passage,the 1 billion funds,if granted,would
A:be used to rebuild the International Space Station.
B:be awarded to the scientists working at NASA.
C:be shared by the two projects under the Space Launch Initiative.
D:be spent on the investigation of the Columbia disaster.
第三篇
Human Space Exploration
While scientists are searching the cause of the Columbia disaster,NASA is moving
ahead with plans to develop a new craft that would replace shuttles（航天飞机）on space
station missions by 2012 and respond quickly to space station emergencies.
The space agency released the first set of mission needs and requirements several days
ago for the orbital space plane（轨道航天飞机）,which would be designed to transport a
crew of four to and from the International Space Station.
Although it includes few specifics, the plan states the orbiter（轨道航天飞机）will be
safer,cheaper and require less preparation time than the shuttle.It would be able to
transport four crew members by 2012一though it would be available for rescue missions by
2010.NASA says the craft should be able to transport injured or ill space station crew
members to "definitive（决定性的）medical care" within 24 hours.
The release of the requirements showed NASA remains focused on the long-term
priorities of space exploration,even as questions exist concerning the loss of Columbia and
its seven-member crew on February 1,2003.
Experts at Marshall Space Flight Center in Huntsville,Alabama,have been working for
years on a successor to the shuttle.The project,known as the Space Launch Initiative（倡
议）,was divided last year into two parts一one focusing on a future launch vehicle,the
other on a space station orbiter. The orbiter is expected to be ready sooner.
The program's managers say NASA officials have told them not to alter Space
Launch Initiative in light of the Columbia disaster.
U.S. President George W. Bush asked Congress for about U.S.$1 billion for Space
Launch Initiative in 2004,funds that would be almost equally split between the Orbital Space
Plane and Next Generation Launch Technology.
According to the passage,the 1 billion funds,if granted,would
A:be used to rebuild the International Space Station.
B:be awarded to the scientists working at NASA.
C:be shared by the two projects under the Space Launch Initiative.
D:be spent on the investigation of the Columbia disaster.
The economic reform in Japan has been accelerated.
A:sped up
B:put off
C:slowed down
D:stopped
A:sped up
B:put off
C:slowed down
D:stopped
共用题干
Young adults who are fit have a higher IQ and are more._________(51)to go on to university,reveals a major new study carried out at the Sahlgrenska Academy and Sahlgrenska University Hospital.
The results were recently published in the Proceedings of the National Academy of Sciences（《美国国家科学院院刊》）.The study involved 1.2 million Swedish men doing military service who were born between 1950 and 1976.
The research group analyzed the_________(52)of both physical and IQ tests the youngsters took right after they started serving the army.
The study shows a clear link_________(53) good physical fitness and better results for the IQ test.The strongest links are for__________(54) thinking and verbal comprehension.But it is only fitness that plays a________(55)in the results for the IQ test,and not strength."Being fit means that you also have good heart and lung________(56)and that your brain gets plenty of________(57),"says Michael Nilsson,professor at the Sahlgrenska Academy and chief physician at the Sahlgrenska University Hospital."This may be one of the reasons_________(58) we can see a clear link with fitness, but not with muscular（肌肉的）__________(59).We are also seeing that there are growth factors that are important."
By analyzing data for twins,the researchers have been __________(60) to determine that it is primarily environmental factors and not genes that explain the link between fitness and a_________(61)IQ.
"We have also shown that those youngsters who_________(62)their physical fitness between the ages of 15 and 18 increase their cognitive performance,"says Maria Aberg,researcher at the Sahlgrenska Academy and physician at Aby health centre."This being the case,physical__________(63)is a subject that has an important place in schools,and is an absolute must if we want to do well in maths and other theoretical subjects."
The researchers have also compared the results from fitness tests _________(64)national service with the socio-economic status of the men later in _________(65).Those who were fit at 18 were more likely to go into higher education,and many secured more qualified jobs.
_________(59)
A:exercise
B:training
C:strength
D:movement
Young adults who are fit have a higher IQ and are more._________(51)to go on to university,reveals a major new study carried out at the Sahlgrenska Academy and Sahlgrenska University Hospital.
The results were recently published in the Proceedings of the National Academy of Sciences（《美国国家科学院院刊》）.The study involved 1.2 million Swedish men doing military service who were born between 1950 and 1976.
The research group analyzed the_________(52)of both physical and IQ tests the youngsters took right after they started serving the army.
The study shows a clear link_________(53) good physical fitness and better results for the IQ test.The strongest links are for__________(54) thinking and verbal comprehension.But it is only fitness that plays a________(55)in the results for the IQ test,and not strength."Being fit means that you also have good heart and lung________(56)and that your brain gets plenty of________(57),"says Michael Nilsson,professor at the Sahlgrenska Academy and chief physician at the Sahlgrenska University Hospital."This may be one of the reasons_________(58) we can see a clear link with fitness, but not with muscular（肌肉的）__________(59).We are also seeing that there are growth factors that are important."
By analyzing data for twins,the researchers have been __________(60) to determine that it is primarily environmental factors and not genes that explain the link between fitness and a_________(61)IQ.
"We have also shown that those youngsters who_________(62)their physical fitness between the ages of 15 and 18 increase their cognitive performance,"says Maria Aberg,researcher at the Sahlgrenska Academy and physician at Aby health centre."This being the case,physical__________(63)is a subject that has an important place in schools,and is an absolute must if we want to do well in maths and other theoretical subjects."
The researchers have also compared the results from fitness tests _________(64)national service with the socio-economic status of the men later in _________(65).Those who were fit at 18 were more likely to go into higher education,and many secured more qualified jobs.
_________(59)
A:exercise
B:training
C:strength
D:movement
共用题干
Health Care in the US
Health care in the US is well-known but very expensive.Paying the doctor's bill after a
major illness or accident can cost hundreds of thousands of dollars.
In the US,a person's company,not the government,pays for health insurance.
Employers have contracts with insurance companies,which pay for all or part of employees'
doctors' bills.
The amount that the insurance company will pay out to a patient differs wildly. It all depends
on what insurance the employer pays.The less the boss pays to the insurance company,the
more the employee has to pay the hospital each time he or she gets sick. In 2004,the average
worker paid an extra US$558 a year,according to a San Francisco report.
The system also means many Americans fall through the cracks（遭遗漏）.In 2004,
only 61 percent of the population received health insurance through their employers,
according to the report. The unemployed,self-employed,part-time workers and graduated
students with no jobs were not included,
Most US university students have a gap between their last day of school and their first
day on the job.Often,they are no longer protected by their parents' insurance because they
are now considered independent adults.They also cannot buy university health insurance because they
are no longer students.
Another group that falls through the gap of the US system is international students.All
are required to have health insurance and cannot begin their classes without it,But exact
policies（保险单）differ from school to school.
Most universities work with health insurance companies and sell their own standard plan
for students.Often,buying the school plan is required,but luckily it's also cheaper than
buying direct from the insurance company.
Allemployees in the US have the same kind of health insurance.
A:Right
B:Wrong
C:Not mentioned
Health Care in the US
Health care in the US is well-known but very expensive.Paying the doctor's bill after a
major illness or accident can cost hundreds of thousands of dollars.
In the US,a person's company,not the government,pays for health insurance.
Employers have contracts with insurance companies,which pay for all or part of employees'
doctors' bills.
The amount that the insurance company will pay out to a patient differs wildly. It all depends
on what insurance the employer pays.The less the boss pays to the insurance company,the
more the employee has to pay the hospital each time he or she gets sick. In 2004,the average
worker paid an extra US$558 a year,according to a San Francisco report.
The system also means many Americans fall through the cracks（遭遗漏）.In 2004,
only 61 percent of the population received health insurance through their employers,
according to the report. The unemployed,self-employed,part-time workers and graduated
students with no jobs were not included,
Most US university students have a gap between their last day of school and their first
day on the job.Often,they are no longer protected by their parents' insurance because they
are now considered independent adults.They also cannot buy university health insurance because they
are no longer students.
Another group that falls through the gap of the US system is international students.All
are required to have health insurance and cannot begin their classes without it,But exact
policies（保险单）differ from school to school.
Most universities work with health insurance companies and sell their own standard plan
for students.Often,buying the school plan is required,but luckily it's also cheaper than
buying direct from the insurance company.
Allemployees in the US have the same kind of health insurance.
A:Right
B:Wrong
C:Not mentioned
共用题干
1. Icebergs are among nature's most spectacular（壮观的）creations , and yet most people have never seen one.A vague air of mystery envelops them.They come into being somewhere in faraway, frigid waters,amid thunderous noise and splashing turbulence,which in most case no one hears or sees. They exist only a short time and then slowly waste away（消融）just as unnoticed.
2. Objects of sheerest（最纯粹的）beauty they have been called. Appearing in an endless vaniety of shapes,they may be dazzlingly white,or they may be glassy blue,green or purple,tinted faintly on in darker hues.They are graceful, stately,inspiring in calm,sunlight seas.
3.But they are also called frightening and dangerous,and that they are一in the night,in the fog,and in storms.Even in clear weather one is wise to stay a safe distance away from them.Most of their bulk is hidden below the water,so their underwater parts may extend out far beyond the visible top.Also,they may roll over unexpectedly,churning the waters around them.
4.Icebergs are parts of glaciers that break off,drift into the water,float about awhile,and finally melt.Icebergs afloat today are made of snowflakes that have fallen over long ages of time.They embody snows that drifted down hundreds,or many thousands,or in some cases maybe a million years ago.The snows fell in polar region and on cold mountains,where they melted only a little or not at all,and so collected to great depths over the years and centuries.As each year's snow accumulation lay on the surface,evaporation and melting caused the snowflakes slowly to lose their feathery points and become tiny grains of ice.When new snow fell on top of the old,it too turned to icy grains.So blankets of snow and ice grains mounted layer upon layer and were of such great thickness that the weight of the upper layers compressed the lower ones.With time and pressure from above, the many small ice grains joined and changed to larger crystals,and eventually the deeper crystals merged into a solid mass of ice.
Paragraph 3__________
A:Formation of iceberg
B:Iceberg is beautiful
C:Color of iceberg
D:Iceberg is dangerous
E:Iceberg is mysterious
F:Classification of iceberg
1. Icebergs are among nature's most spectacular（壮观的）creations , and yet most people have never seen one.A vague air of mystery envelops them.They come into being somewhere in faraway, frigid waters,amid thunderous noise and splashing turbulence,which in most case no one hears or sees. They exist only a short time and then slowly waste away（消融）just as unnoticed.
2. Objects of sheerest（最纯粹的）beauty they have been called. Appearing in an endless vaniety of shapes,they may be dazzlingly white,or they may be glassy blue,green or purple,tinted faintly on in darker hues.They are graceful, stately,inspiring in calm,sunlight seas.
3.But they are also called frightening and dangerous,and that they are一in the night,in the fog,and in storms.Even in clear weather one is wise to stay a safe distance away from them.Most of their bulk is hidden below the water,so their underwater parts may extend out far beyond the visible top.Also,they may roll over unexpectedly,churning the waters around them.
4.Icebergs are parts of glaciers that break off,drift into the water,float about awhile,and finally melt.Icebergs afloat today are made of snowflakes that have fallen over long ages of time.They embody snows that drifted down hundreds,or many thousands,or in some cases maybe a million years ago.The snows fell in polar region and on cold mountains,where they melted only a little or not at all,and so collected to great depths over the years and centuries.As each year's snow accumulation lay on the surface,evaporation and melting caused the snowflakes slowly to lose their feathery points and become tiny grains of ice.When new snow fell on top of the old,it too turned to icy grains.So blankets of snow and ice grains mounted layer upon layer and were of such great thickness that the weight of the upper layers compressed the lower ones.With time and pressure from above, the many small ice grains joined and changed to larger crystals,and eventually the deeper crystals merged into a solid mass of ice.
Paragraph 3__________
A:Formation of iceberg
B:Iceberg is beautiful
C:Color of iceberg
D:Iceberg is dangerous
E:Iceberg is mysterious
F:Classification of iceberg
共用题干
The first navigational lights in the New World were probably lanterns hung at harbor entrances.The first lighthouse was put up by the Massachusetts Bay Colony in 1716 on Little Brewster Island at the entrance to Boston Harbor, Paid for and maintained by“light dues”levied（征 收）on ships,the original beacon was blown up in 1776.Until then there were only a dozen or so true lighthouses in the colonies.Little over a century later,there were 700 lighthouses.
The first eight lighthouses erected on the West Coast in the 1850s featured the same basic New England design:a Cape Cod dwelling with the tower rising from the center or standing close by .In New England and elsewhere,though,lighthouses reflected a variety of architectural styles.
Since most stations in the Northeast were set up on rocky eminences（高处）,enormous towers were not the rule .Some were made of stone and brick,others of wood or metal.Some stood on pilings or stilts;some were fastened to rock with iron rods.Farther south,from Maryland through the Florida Keys,the coast was low and sandy.It was often necessary to build tall towers theremassive structures like the majestic lighthouse in Cape Hatteras,North Carolina,which was lit in 1870.190 feet high,it is the tallest brick lighthouse in the country.
Not withstanding differences in construction appearance,most lighthouses in America shared several features:a light,living quarters,and sometimes a bell(or,later,a foghorn).They also had something else in common:a keeper and usually the keeper's family.The keeper's essential task was trimming the lantern wick（灯芯）in order to maintain a steady,bright flame. The earliest keepers came from every walk of life, they were seamen,farmers,mechanics,rough mill hands and appointments were often handed out by local customs commissioners as political plums.
After the administration of lighthouse was taken over in 1852 by the United States Lighthouse Board,and agency of the Treasury Department,the keeper corps gradually became highly professional.
Which is the best title for the passage?
A: The Lighthouse on Little Brewster Island.
B: The Life of a Lighthouse Keeper.
C: Early Lighthouses in the United States.
D: The Modern Profession of Lighthouse-keeping.
The first navigational lights in the New World were probably lanterns hung at harbor entrances.The first lighthouse was put up by the Massachusetts Bay Colony in 1716 on Little Brewster Island at the entrance to Boston Harbor, Paid for and maintained by“light dues”levied（征 收）on ships,the original beacon was blown up in 1776.Until then there were only a dozen or so true lighthouses in the colonies.Little over a century later,there were 700 lighthouses.
The first eight lighthouses erected on the West Coast in the 1850s featured the same basic New England design:a Cape Cod dwelling with the tower rising from the center or standing close by .In New England and elsewhere,though,lighthouses reflected a variety of architectural styles.
Since most stations in the Northeast were set up on rocky eminences（高处）,enormous towers were not the rule .Some were made of stone and brick,others of wood or metal.Some stood on pilings or stilts;some were fastened to rock with iron rods.Farther south,from Maryland through the Florida Keys,the coast was low and sandy.It was often necessary to build tall towers theremassive structures like the majestic lighthouse in Cape Hatteras,North Carolina,which was lit in 1870.190 feet high,it is the tallest brick lighthouse in the country.
Not withstanding differences in construction appearance,most lighthouses in America shared several features:a light,living quarters,and sometimes a bell(or,later,a foghorn).They also had something else in common:a keeper and usually the keeper's family.The keeper's essential task was trimming the lantern wick（灯芯）in order to maintain a steady,bright flame. The earliest keepers came from every walk of life, they were seamen,farmers,mechanics,rough mill hands and appointments were often handed out by local customs commissioners as political plums.
After the administration of lighthouse was taken over in 1852 by the United States Lighthouse Board,and agency of the Treasury Department,the keeper corps gradually became highly professional.
Which is the best title for the passage?
A: The Lighthouse on Little Brewster Island.
B: The Life of a Lighthouse Keeper.
C: Early Lighthouses in the United States.
D: The Modern Profession of Lighthouse-keeping.
共用题干
Ford
1 Ford's great strength was the manufacturing process一not invention.Long before he
started a car company,he was a worker,known for picking up pieces of metal and wire
and turning them into machines.He started putting cars together in 1891.Although it was
by no means the first popular automobile,the Model T showed the world just how creative
Ford was at combining technology and market.
2 The company's assembly line alone threw America's Industrial Revolution into overdrive
（高速运转）.Instead of having workers put together the entire car , Ford's friends , who
were great toolmakers from Scotland,organized teams that added parts to each Model T as
it moved down a line. By the time Ford's Highland Park plant was humming（嗡嗡作响）
along in 1914,the world's first automatic conveyor belt could turn out a car every 93
minutes.
3 The same year Henry Ford shocked the world with the$5-a-day minimum wage scheme,
the greatest contribution he had ever made. The average wage in the auto industry then
was $2.34 for a 9-hour shift. Ford not only doubled that,he also took an hour off the
workday.In those years it was unthinkable that a man could be paid that much for doing
something that didn't involve an awful lot of training or education.The Wall Street Journal
called the plan"an economic crime",and critics everywhere laughed at Ford.
4 But as the wage increased later to daily$10,it proved a critical component of Ford's
dream to make the automobile accessible（可及的）to all. The critics were too stupid to
understand that because Ford had lowered his costs per car,the higher wages didn't
matter一 except for making it possible for more people to buy cars.
Higher wages enabled many people to_______.
A:criticized by the media
B:the low wage in the auto industry
C:own acar
D:produce cars in large numbers
E:the8-hour-shift practice
F:combined technology and market
Ford
1 Ford's great strength was the manufacturing process一not invention.Long before he
started a car company,he was a worker,known for picking up pieces of metal and wire
and turning them into machines.He started putting cars together in 1891.Although it was
by no means the first popular automobile,the Model T showed the world just how creative
Ford was at combining technology and market.
2 The company's assembly line alone threw America's Industrial Revolution into overdrive
（高速运转）.Instead of having workers put together the entire car , Ford's friends , who
were great toolmakers from Scotland,organized teams that added parts to each Model T as
it moved down a line. By the time Ford's Highland Park plant was humming（嗡嗡作响）
along in 1914,the world's first automatic conveyor belt could turn out a car every 93
minutes.
3 The same year Henry Ford shocked the world with the$5-a-day minimum wage scheme,
the greatest contribution he had ever made. The average wage in the auto industry then
was $2.34 for a 9-hour shift. Ford not only doubled that,he also took an hour off the
workday.In those years it was unthinkable that a man could be paid that much for doing
something that didn't involve an awful lot of training or education.The Wall Street Journal
called the plan"an economic crime",and critics everywhere laughed at Ford.
4 But as the wage increased later to daily$10,it proved a critical component of Ford's
dream to make the automobile accessible（可及的）to all. The critics were too stupid to
understand that because Ford had lowered his costs per car,the higher wages didn't
matter一 except for making it possible for more people to buy cars.
Higher wages enabled many people to_______.
A:criticized by the media
B:the low wage in the auto industry
C:own acar
D:produce cars in large numbers
E:the8-hour-shift practice
F:combined technology and market
共用题干
Free Statins with Fast Food could Neutralize Heart Risk
Fast food outlets could provide statin drugs free of1so that customers can reduce the heart disease dangers of fatty food,researchers at Imperial College London 2in a new study.
Statins reduce the3of unhealthy“LDL” cholesterol in the blood. A wealth of trial data has proven them to be highly effective at lowering a person's heart attack4.
In a paper published in the American Journal of Cardiology,Dr Darrel Francis and colleagues calculate that the reduction in heart attack risk offered by a statin is5to offset the increase in heart attack risk from6a cheeseburger and drinking a milkshake.
Dr Francis,from the National Heart and Lung Institute at Imperial College London,who is the senior author of the study,said:“Statins don't cut out all of the7effects of cheeseburgers and French fries. It's better to avoid fatty food altogether. But we've worked out that in terms of your8of having a heart attack. Taking a statin can reduce your risk to more or less the same9 as a fast food meal increases it.”“It's ironic that people are free to take as many unhealthy condi-ments in fast food outlets as they10,but statins,which are beneficial to heart health,have to be prescribed. It makes sense to make risk-reducing statins available just as easily as the unhealthy condiments that are 11 free of charge. It would cost less than 5 pence per/u>12一not much different to a sachet of sugar.”Dr Francis said.
When people engage in risky behaviours like driving or smoking,they're encouraged to take13that lower their risk,like14a seatbelt or choosing cigarettes with filters.
Taking a statin is a rational way of15some of the risks of eating a fatty meal.
6._________
A: buying
B: preparing
C: eating
D: cooking
Free Statins with Fast Food could Neutralize Heart Risk
Fast food outlets could provide statin drugs free of1so that customers can reduce the heart disease dangers of fatty food,researchers at Imperial College London 2in a new study.
Statins reduce the3of unhealthy“LDL” cholesterol in the blood. A wealth of trial data has proven them to be highly effective at lowering a person's heart attack4.
In a paper published in the American Journal of Cardiology,Dr Darrel Francis and colleagues calculate that the reduction in heart attack risk offered by a statin is5to offset the increase in heart attack risk from6a cheeseburger and drinking a milkshake.
Dr Francis,from the National Heart and Lung Institute at Imperial College London,who is the senior author of the study,said:“Statins don't cut out all of the7effects of cheeseburgers and French fries. It's better to avoid fatty food altogether. But we've worked out that in terms of your8of having a heart attack. Taking a statin can reduce your risk to more or less the same9 as a fast food meal increases it.”“It's ironic that people are free to take as many unhealthy condi-ments in fast food outlets as they10,but statins,which are beneficial to heart health,have to be prescribed. It makes sense to make risk-reducing statins available just as easily as the unhealthy condiments that are 11 free of charge. It would cost less than 5 pence per/u>12一not much different to a sachet of sugar.”Dr Francis said.
When people engage in risky behaviours like driving or smoking,they're encouraged to take13that lower their risk,like14a seatbelt or choosing cigarettes with filters.
Taking a statin is a rational way of15some of the risks of eating a fatty meal.
6._________
A: buying
B: preparing
C: eating
D: cooking
John looked so weary after a long-run in the game.
A:ill
B:tired
C:worried
D:peaceful
A:ill
B:tired
C:worried
D:peaceful