问答题Flu and How Not to Catch It This winter, in offices and workplaces throughout the country, people are at risk of becoming a health danger to their colleagues. These are the people who, carrying flu viruses, have dragged themselves in to work in (1) sp____ of the high temperature, headache, sore throat and cough they are (2) su____ from. Most experts agree that people with flu ought to stay at home, certainly in the case of those (3)____ jobs involve public safety-airline pilots, air traffic (4)____(control) and train drivers. A diet rich in (5) ve____ and fruit and regular exercise may help people avoid the illness. Experts are (6)____(doubt) whether taking lots of vitamin C will (7)____ any difference, but reducing stress levels may help. Basic hygiene is certainly important, as well, especially in the office. We know that the illness can be passed on (8) f____ cups and saucers, so do more than simply rinse them under the tap with all the others. Wash them properly with hot water and use disinfectants to clean surfaces. Remember to wash your hands (9) reg____ and don’t touch your face, as flu enters the body through the eyes, nose and mouth. Other tips on prevention include (10)____ rid of cloth handkerchiefs, which provide a home for germs. Change to paper tissues and throw them away afterwards.
问答题
Flu and How Not to Catch It This winter, in offices and workplaces throughout the country, people are at risk of becoming a health danger to their colleagues. These are the people who, carrying flu viruses, have dragged themselves in to work in (1) sp____ of the high temperature, headache, sore throat and cough they are (2) su____ from. Most experts agree that people with flu ought to stay at home, certainly in the case of those (3)____ jobs involve public safety-airline pilots, air traffic (4)____(control) and train drivers. A diet rich in (5) ve____ and fruit and regular exercise may help people avoid the illness. Experts are (6)____(doubt) whether taking lots of vitamin C will (7)____ any difference, but reducing stress levels may help. Basic hygiene is certainly important, as well, especially in the office. We know that the illness can be passed on (8) f____ cups and saucers, so do more than simply rinse them under the tap with all the others. Wash them properly with hot water and use disinfectants to clean surfaces. Remember to wash your hands (9) reg____ and don’t touch your face, as flu enters the body through the eyes, nose and mouth. Other tips on prevention include (10)____ rid of cloth handkerchiefs, which provide a home for germs. Change to paper tissues and throw them away afterwards.
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He doesn’t take hints easily, but he’ll _ what you’re saying. A.catch up withB.catch hold ofC.catch sight ofD.catch on to
to, I, how, last, winter, skate, learned__________________________________________________________________________.
下列程序的输出结果是( )。 PublicclassTest{ Publicstaticvoidmain(String[]args){ int[]array=(2，4，6，8，10)； intsize=6； intresult=-1； try{ for(inti=0；i＜sizeresult==-1；) if(array[i]==20)result=i； } catch(ArithmeticExceptione){ System.out.println("Catch---1")； } catch(Array IndexOutOfBoundsExceptione){ System.out.println("Catch---2")； } catch(Exceptione){ System.out.println("Catch---3")； } }A．Catch---1B．Catch---2C．Catch---3D．以上都不对
The best solution to the problem of the spread of bird flu is ______.A. to kill all the birds in an area where bird flu has been discoveredB. to kill all the chickensC. to kill all the birdsD. to kill all the chickens when bird flu has been discovered
Something like a caste line is emerging centered around knowledge.Individuals who fall too far behind in the（ ）of knowledge at a young age will find it almost impossible to catch up later,no matter how hard they try.A.controlB.masteryC.searchD.pursuit
I do not know how I shall manage this winter. I ________it not for the weather which is rarely fierce, but for the loneliness.A. intimidate B. fear C. terrify D. dread
共用题干Flu Shots Or Not?It sounded like a good idea when New York City's mayor,Rudollph Giuliani,advised New Yorkers recently to get a flu shot.After all,20,000 Americans each year die of influenza. And this year in particular,the mayor suggested,getting a flu shot might be an especially good idea, since it could help doctors distinguish between flu and the deadly inhalational（吸入的）form of anthrax（炭疽）.How? Both anthrax and flu exhibit strikingly similar symptoms-fever, chills and muscle aches-in the early days of the infection.Physicians would be quick to suspect anthrax in anyone who was vaccinated（接种疫苗）against flu and still developed fever and chills. That would give them a better chance to identify any new victims of terror while their infection was still in its earliest,most treatable stages.Or so the mayor's reasoning went. Unfortunately,there are a couple of problems with his log-ic .For one thing,getting vaccinated against influenza doesn't guarantee you won't get sick .Al-though highly effective,the flu vaccine（疫苗）protects against only the dominant types of the dis-ease and even then does not provide 100% protection.It takes a couple of weeks for your body to respond to the vaccine with a sufficient number of antibodies（抗体）.Each year thousands ofAmericans who get the vaccine nevertheless still get the flu.There are also plenty of reasons you might develop fever,chills and muscle aches that have nothing to do with either anthrax or flu .Indeed,doctors estimate that more than 80%of all flu-like illnesses each winter are caused by other groups of viruses.Getting vaccinated against flu can't protect you against suffering from these other illnesses.In the worst case,asking all healthy adults to get vaccinated could actually have the opposite effect to the one intended,leading to even more deaths if it means we run out of shots for those who are most vulnerable to the infection.Already there have been delays in getting this year's shipment of vaccine to clinics and doctor's offices.Those who should be at the front of the line in-clude folks who are 65 or older,nursing-home residents and adults and children with chronic health problems as well as anyone who cares for or lives with such people .Flu shots are also im- portant for men and women whose immune system is weakened by HIV（艾滋病病毒）or other conditions.The best reason to get the flu vaccine is that it proteets against most flus-not that you're worried about getting anthrax.While inhalational anthrax has killed only five people so far,many more could be at risk from flu-related complications.There's no need to worsen the tragedy by making this year's influenza epidemic any worse. It is not easy to tell anthrax from flu in the early days of the infection.A: RightB: WrongC: Not mentioned
共用题干Flu Shots Or Not?It sounded like a good idea when New York City's mayor,Rudollph Giuliani,advised New Yorkers recently to get a flu shot.After all,20,000 Americans each year die of influenza. And this year in particular,the mayor suggested,getting a flu shot might be an especially good idea, since it could help doctors distinguish between flu and the deadly inhalational（吸入的）form of anthrax（炭疽）.How? Both anthrax and flu exhibit strikingly similar symptoms-fever, chills and muscle aches-in the early days of the infection.Physicians would be quick to suspect anthrax in anyone who was vaccinated（接种疫苗）against flu and still developed fever and chills. That would give them a better chance to identify any new victims of terror while their infection was still in its earliest,most treatable stages.Or so the mayor's reasoning went. Unfortunately,there are a couple of problems with his log-ic .For one thing,getting vaccinated against influenza doesn't guarantee you won't get sick .Al-though highly effective,the flu vaccine（疫苗）protects against only the dominant types of the dis-ease and even then does not provide 100% protection.It takes a couple of weeks for your body to respond to the vaccine with a sufficient number of antibodies（抗体）.Each year thousands ofAmericans who get the vaccine nevertheless still get the flu.There are also plenty of reasons you might develop fever,chills and muscle aches that have nothing to do with either anthrax or flu .Indeed,doctors estimate that more than 80%of all flu-like illnesses each winter are caused by other groups of viruses.Getting vaccinated against flu can't protect you against suffering from these other illnesses.In the worst case,asking all healthy adults to get vaccinated could actually have the opposite effect to the one intended,leading to even more deaths if it means we run out of shots for those who are most vulnerable to the infection.Already there have been delays in getting this year's shipment of vaccine to clinics and doctor's offices.Those who should be at the front of the line in-clude folks who are 65 or older,nursing-home residents and adults and children with chronic health problems as well as anyone who cares for or lives with such people .Flu shots are also im- portant for men and women whose immune system is weakened by HIV（艾滋病病毒）or other conditions.The best reason to get the flu vaccine is that it proteets against most flus-not that you're worried about getting anthrax.While inhalational anthrax has killed only five people so far,many more could be at risk from flu-related complications.There's no need to worsen the tragedy by making this year's influenza epidemic any worse. Asking all healthy adults to get a flu shot may result in a shortage of the flu shots for those who are most vulnerable to the infection.A: RightB: WrongC: Not mentioned
共用题干Flu Shots Or Not?It sounded like a good idea when New York City's mayor,Rudollph Giuliani,advised New Yorkers recently to get a flu shot.After all,20,000 Americans each year die of influenza. And this year in particular,the mayor suggested,getting a flu shot might be an especially good idea, since it could help doctors distinguish between flu and the deadly inhalational（吸入的）form of anthrax（炭疽）.How? Both anthrax and flu exhibit strikingly similar symptoms-fever, chills and muscle aches-in the early days of the infection.Physicians would be quick to suspect anthrax in anyone who was vaccinated（接种疫苗）against flu and still developed fever and chills. That would give them a better chance to identify any new victims of terror while their infection was still in its earliest,most treatable stages.Or so the mayor's reasoning went. Unfortunately,there are a couple of problems with his log-ic .For one thing,getting vaccinated against influenza doesn't guarantee you won't get sick .Al-though highly effective,the flu vaccine（疫苗）protects against only the dominant types of the dis-ease and even then does not provide 100% protection.It takes a couple of weeks for your body to respond to the vaccine with a sufficient number of antibodies（抗体）.Each year thousands ofAmericans who get the vaccine nevertheless still get the flu.There are also plenty of reasons you might develop fever,chills and muscle aches that have nothing to do with either anthrax or flu .Indeed,doctors estimate that more than 80%of all flu-like illnesses each winter are caused by other groups of viruses.Getting vaccinated against flu can't protect you against suffering from these other illnesses.In the worst case,asking all healthy adults to get vaccinated could actually have the opposite effect to the one intended,leading to even more deaths if it means we run out of shots for those who are most vulnerable to the infection.Already there have been delays in getting this year's shipment of vaccine to clinics and doctor's offices.Those who should be at the front of the line in-clude folks who are 65 or older,nursing-home residents and adults and children with chronic health problems as well as anyone who cares for or lives with such people .Flu shots are also im- portant for men and women whose immune system is weakened by HIV（艾滋病病毒）or other conditions.The best reason to get the flu vaccine is that it proteets against most flus-not that you're worried about getting anthrax.While inhalational anthrax has killed only five people so far,many more could be at risk from flu-related complications.There's no need to worsen the tragedy by making this year's influenza epidemic any worse. None of the five people killed by inhalational anthrax had been vaccinated against influenza.A: RightB: WrongC: Not mentioned
资料：A high-precision NASA radar instrument left a NASA airport in Southern California for Iceland on January 28 to create detailed maps of how glaciers move in the dead of winter. This will help scientists around the world better understand some of the most basic processes involved in melting glaciers, which are major contributors to rising sea levels.NASA used the same airborne instrument in June 2012 to map the summer flows of two Icelandic ice caps. The ice caps — large areas of permanent snow and ice cover — encompass multiple glaciers flowing in different directions and at different speeds. By mapping the same ice caps now, in winter, when the surface remains frozen all day, and then comparing the winter and summer velocities, the researchers will be able to isolate the effects of melt water.Above is a view of a small part of the Hofsjkull ice cap, which encompasses several glaciers. The fan at upper left is part of a glacier called Mlaj?kull.For more on the research, see this NASA press release.How can the scientists figure out the effects of melting water?A.By melting the frozen iceberg in winter.B.By observing the snow's moving directions.C.By isolating ice from water in sunlines.D.By comparing the glaciers moving speeds.
共用题干第一篇How Animals Keep WarmMan has invented ways to keep warm,but how do animals defend themselves?They cannot reason in the sense that man can,but nature has taken care of the animal kingdom by providing animals with special instincts（本能）.One of these instincts is known as hibernation（冬眠）." Sleeping like a dormouse（棒睡鼠）"is not only a common saying but is a reality. When winter comes,the dormouse and other hibernating animals have reached a well-nourished state.They eat very well in warmer days laying down fat in the tissues of their bodies and during hibernation this keeps them alive.Safe in their nests,or burrows（地洞）,they sleep soundly until the warmth of spring arrives.Bats,tortoises,snakes,frogs,even insects like butterflies,hibernate more or less completely. Some, like the squirrels（松鼠）,sleep during coldest weather but are roused（弄醒）by a warm spell（暖流）.During hibernation, the temperature of an animal's body drops drastically.Breathing and heart-beats almost cease.Another instinctive method of avoiding intense cold is to escape by means of migration. Wild swans,seagulls,swallows and cuckoos are a few of the very many kinds of birds which fly thousands of miles,twice a year,to avoid cold.Many animals,especially those of the Arctic regions,have summer and winter quarters.The Arctic deer of North America, as well as the reindeer（驯鹿）of Europe,move southward towards the forests when winter approaches.They return to the northern area when the warmth of spring begins to be sensed.There are animals which do not attempt to leave at the first sign of winter cold.Their instinctive means of defense is to dig out a deep burrow,made it soft and warm by padding （填塞）out with straw,leaves,moss and fur. In it they have a"secret place"containing food which they hope will last the winter through!Animals which fall into this class include the Arctic fox,the rabbit and the little field-mouse.How does the Arctic fox survive in winter?A:It leaves its burrow and migrates to a warmer land.B:It sleeps soundly inside its burrow in winter. C:It lives on rabbits or field mice.D:It stays in its burrow and lives on the food stored there.
Very few of our birds stay with us the year round.Some come to us in the winter from the cold?north.Others come from the south to spend the summer with us.How do they know the way?Suppose?you were told to find your way to a place hundreds of miles away,do you think you could do it?Yet birds travel over mountains,forests,lakes and even across the oceans,and do not stray from?the path.They find their way back in the spring to the same orchard（果园）and the very trees where?they nested the summer before.It is wonderful how quickly birds travel such long distances from their summer homes to their?winter ones.Some birds have been known to fly hundreds of miles in a day.But others travel much?more slowly.Why do birds undertake these long journeys twice a year?Perhaps cold weather and lack of?food drive them from us in the autumn,but we cannot tell why they leave the sunny south to come?back to us in the spring.We know only that many of them like to make their nests and rear their?young in the north.We are sorry to see them go,but we know that when winter is over they will come back to us.How far do birds usually travel from their summer homes to their winter ones?A.About hundreds of miles.B.About thousands of miles.C.The distance that takes a bird to fly the whole morning.D.The passage does not tell us.
How do I get to Cairo?（）AI‘m sorry. I can‘t understand.BYou could catch the 9:30 flight and change at Paris.CI‘m afraid you have missed the flight.DI‘m glad to show you the way
Questions 11 to 15 are based on the following passage. Scratchy throats, stuffy noses and body aches all spell misery, but being able to tell if the cause is a cold or flu (流感) may make a difference in how long the misery lasts. The American Lung Association (ALA) has issued new guidelines on combating colds and the flu, and one of the keys is being able to quickly tell the two apart. That’s because the prescription drugs available for the flu need to be taken soon after the illness sets in. As for colds, the sooner a person starts taking over-the-counter remedy, the sooner relief will come. The common cold and the flu are both caused by viruses. More than 200 viruses can cause cold symptoms, while the flu is caused by three viruses—flu A, B and C. There is no cure for either illness, but the flu can be prevented by the flu vaccine (疫苗), which is, for most people, the best way to fight the flu, according to the ALA. But if the flu does strike, quick action can help. Although the flu and common cold have many similarities, there are some obvious signs to look for. Cold symptoms such as stuffy nose, runny nose and scratchy throat typically develop gradually, and adults and teens often do not get a fever. On the other hand, fever is one of the characteristic features of the flu for all ages. And in general, flu symptoms including fever and chills, sore throat and body aches come on suddenly and are more severe than cold symptoms. The ALA notes that it may be particularly difficult to tell when infants and preschool age children have the flu. It advises parents to call the doctor if their small children have flu-like symptoms. Both cold and flu symptoms can be eased with over-the-counter medications as well. However, children and teens with a cold or flu should not take aspirin for pain relief because of the risk of Reye syndrome (综合症)，a rare but serious condition of the liver and central nervous system. There is, of course, no vaccine for the common cold. But frequent hand washing and avoiding close contact with people who have colds can reduce the likelihood of catching one. We learn from the passage that （）A、one doesn’t need to take any medicine if he has a cold or the fluB、aspirin should not be included in over-the-counter medicines for the fluC、delayed treatment of the flu will harm the liver and central nervous systemD、over-the-counter drugs can be taken to ease the misery caused by a cold or the flu
下面关于try、catch和finally语句块的组合使用，正确的是（）A、try{，}B、try{，}finally{，}C、try{，}catch{，}finally{，}D、try{，}catch{，}catch{，}
单选题How do I get to Cairo?（）AI‘m sorry. I can‘t understand.BYou could catch the 9:30 flight and change at Paris.CI‘m afraid you have missed the flight.DI‘m glad to show you the way
问答题Directions:In this section, there is one passage followed by 5 questions. Read the passage carefully, then answer the questions in as few words as possible (not more than 10 words). Remember to write the answers on the Answer Sheet. Questions 1-5 are based on the following passage. Many people today are worried about bird flu. They are afraid that it will pass from birds to humans and that thousands of people will die in a pandemic. In 1918 a flu virus killed about 50 million people around the world. The virus was called Spanish influenza (or Spanish flu, for short) because Spanish newspapers first described the disease. Now, after nine years of work, scientists in an American laboratory in Atlanta, Georgia, have produced a copy of the Spanish flu virus. They are also going to publish the genetic sequence of the virus on the Internet and some experts are afraid that other laboratories could copy the virus. Scientists have copied the virus because they want to understand why the 1918 Spanish flu pandemic killed so many people. In a report in the journal Science, Dr. Jeffery Taubenberger and a team of scientists in the USA show that the copied virus is extremely powerful. The scientists injected the virus into mice and the mice began to lose weight very quickly. They lost 13% of their weight in two days and all of the mice died within six days. “I didn’t expect it to be as lethal as it was,”Dr. Terrence Tumpey, one of the scientists in the team, told the journal Nature. In another experiment, they injected more mice with a normal type of flu. The mice lost weight at first but then they got better and did not die. The experiments showed that the mice with the Spanish flu virus had 39,000 times more flu virus in their bodies than the second group of mice. The scientists who copied the virus say their work has already provided important information about the virus and helps to explain why it is so lethal. But other experts are worried that the virus could escape from the laboratory. “Some people will think that they have really created a biological weapon,” said Professor Ronald Atlas of the University of Louisville in Kentucky. “I am even more worried now than I was before about the possibility of a flu pandemic. The 1918 flu pandemic started with bird flu and that might happen again today with Asian bird flu.” Some scientists are worried about the publication of the genetic sequence on the Internet. They are afraid that biologists could copy the virus using the information on the Internet. This could be very dangerous. It took a long time to copy the virus. Scientists used material taken from the lungs of people who died from the flu virus in 1918. In a second report in Nature, Taubenberger and his colleagues analyzed the genetic make-up of the virus. They were surprised to find that it was completely different from all the normal human flu viruses. This probably means that Spanish flu jumped from birds to humans and did not mix with a human virus first. This is very worrying for scientists because in the past everyone believed that a pandemic was only possible if a bird flu virus mixed with a human flu virus. Taubenberger says it is very important to know what changes in the virus caused the 1918 Spanish flu virus. This will help scientists to work out which viruses might cause a pandemic. The H5N1 bird flu in Asia is already changing and it could infect humans, he said. Viruses have escaped from high-security labs before. The SARS virus escaped at least twice, once in Taiwan and once in Singapore. But some scientists believe a pandemic will not happen even if the virus escapes, because most people are naturally immune and there are now a lot of drugs which protect people from flu. Questions: 1．When was the Spanish flu pandemic? 2．How many people died in the Spanish flu pandemic? 3．Where did the scientists produce a copy of the Spanish flu virus? 4．How quickly did the laboratory mice die? 5．What is H5N1?
问答题If 5 frogs catch 5 flies in 5 minutes, how many frogs are required to catch 50 flies in 50 minutes?
问答题Flu and How Not to Catch It This winter, in offices and workplaces throughout the country, people are at risk of becoming a health danger to their colleagues. These are the people who, carrying flu viruses, have dragged themselves in to work in (1) sp____ of the high temperature, headache, sore throat and cough they are (2) su____ from. Most experts agree that people with flu ought to stay at home, certainly in the case of those (3)____ jobs involve public safety-airline pilots, air traffic (4)____(control) and train drivers. A diet rich in (5) ve____ and fruit and regular exercise may help people avoid the illness. Experts are (6)____(doubt) whether taking lots of vitamin C will (7)____ any difference, but reducing stress levels may help. Basic hygiene is certainly important, as well, especially in the office. We know that the illness can be passed on (8) f____ cups and saucers, so do more than simply rinse them under the tap with all the others. Wash them properly with hot water and use disinfectants to clean surfaces. Remember to wash your hands (9) reg____ and don’t touch your face, as flu enters the body through the eyes, nose and mouth. Other tips on prevention include (10)____ rid of cloth handkerchiefs, which provide a home for germs. Change to paper tissues and throw them away afterwards.
单选题Questions 11 to 15 are based on the following passage. Scratchy throats, stuffy noses and body aches all spell misery, but being able to tell if the cause is a cold or flu (流感) may make a difference in how long the misery lasts. The American Lung Association (ALA) has issued new guidelines on combating colds and the flu, and one of the keys is being able to quickly tell the two apart. That’s because the prescription drugs available for the flu need to be taken soon after the illness sets in. As for colds, the sooner a person starts taking over-the-counter remedy, the sooner relief will come. The common cold and the flu are both caused by viruses. More than 200 viruses can cause cold symptoms, while the flu is caused by three viruses—flu A, B and C. There is no cure for either illness, but the flu can be prevented by the flu vaccine (疫苗), which is, for most people, the best way to fight the flu, according to the ALA. But if the flu does strike, quick action can help. Although the flu and common cold have many similarities, there are some obvious signs to look for. Cold symptoms such as stuffy nose, runny nose and scratchy throat typically develop gradually, and adults and teens often do not get a fever. On the other hand, fever is one of the characteristic features of the flu for all ages. And in general, flu symptoms including fever and chills, sore throat and body aches come on suddenly and are more severe than cold symptoms. The ALA notes that it may be particularly difficult to tell when infants and preschool age children have the flu. It advises parents to call the doctor if their small children have flu-like symptoms. Both cold and flu symptoms can be eased with over-the-counter medications as well. However, children and teens with a cold or flu should not take aspirin for pain relief because of the risk of Reye syndrome (综合症)，a rare but serious condition of the liver and central nervous system. There is, of course, no vaccine for the common cold. But frequent hand washing and avoiding close contact with people who have colds can reduce the likelihood of catching one. If children have flu-like symptoms, their parents （）Aare advised not to give them aspirinBshould watch out for signs of Reye syndromeCare encouraged to take them to hospital for vaccinationDshould prevent them from mixing with people running a fever
单选题The phraseeven in winter(Lines 8~9)most nearly means _____.Aif the winter is especially warmBduring all of the year except the winterCin winter as well as in other seasonsDduring the evenings in winter