单选题As a recent study shows, once the H1N1 flu patients _____ to hospital, the elderly have a higher risk of dying.Awere sendingBwill sendCare sentDhave sent
单选题
As a recent study shows, once the H1N1 flu patients _____ to hospital, the elderly have a higher risk of dying.
A
were sending
B
will send
C
are sent
D
have sent
参考解析
解析：
语意为：“一项最近的研究表明，一旦甲型流感病人住院，老年人的死亡风险更大”，在这个once引导的状语从句中应用一般现在时。主语是动作的承受者，应该用被动语态。
语意为：“一项最近的研究表明，一旦甲型流感病人住院，老年人的死亡风险更大”，在这个once引导的状语从句中应用一般现在时。主语是动作的承受者，应该用被动语态。
相关考题：
What can we conclude from the recent study?A. People think highly of science.B. People hold mixed opinions about science.C. Science is getting dangerously out of control.D. Science is used for both good and bad purposes.
43． _________ scientists have done a lot of research on A (HINl) flu，there are still some cases for further study．A．AsB．OnceC．IfD．Although
Passage TwoQuestions 26 to 30 are based on the following passage.①The threat of a global outbreak (疾病大爆发) of bird flu makes it urgent for the international community to cooperate effectively. Wealthy countries will have to provide hundreds of millions of dollars for the testing and production of medicines necessary for treating patients suffering from bird flu. Developing countries, particularly in Southeast Asia, where the bird flu virus (病毒) has spread since 1997, must work out special programs so that farmers will not hide signs of possible outbreaks. In addition, the way such farm birds as chickens and ducks are traditionally raised and marketed in the developing world should be changed; there should be more distance between the birds and their keepers. Countries should deal with the disease with joint effort. If one country is inadequately prepared, it will be a threat to every other country.②The potential effects of a national outbreak of bird flu are enormous. Firstly, an outbreak may kill large numbers of people. World Health Organization (WHO) estimates that an outbreak similar to the mild Hong Kong flu of 1968 could kill as many as 7.4 millions people. If it were as dangerous as the 1918 Spanish flu, which killed 50 million, the number would be much higher. Secondly, such an outbreak may cause great financial damage. The latest outbreak of bird flu, which began in December 2003, has cost Southeast Asia more than $10 billion and depressed its GDP(gross domestic product) by 1.5 percent. If a new outbreak of bird flu were to last for a whole year, $800 billion would be lost.③Despite the 124 human cases and 63 deaths from bird flu since December 2003, the virus remains mainly a disease of animals. However, the more animals that die of the disease, the more chances it has of spreading to people. Large numbers of dead or dying birds mean that more people will be exposed to the virus and change into a virus with new characteristics. If the international community works together efficiently, man can surely prevent such a virus and possibly save millions of lives.26. Faced with the threat of a global outbreak of bird flu, the international community should ________.A. establish new marketsB. work together effectivelyC. stop birds from flying to other countriesD. raise fewer chickens and ducks
The study shows that teenagers don't want to ( )．A． share family responsibilityB．cause trouble in their familiesC． go boating with their familyD． make family decisions
Which of the following is true according to the passage?[A] Flu vaccines now mainly use egg-based technology.[B] A bird influenza has once circulated among humans.[C] Safety can be greatly improved with cell-culture vaccines.[D] Modern vaccine production methods are to replace egg-based methods.
共用题干Promising Results From Cancer StudyA new experimental vaccine（疫苗）has shown promising results in the fight against lung cancer. In a small Texas-based study,a vaccine developed by scientists at Baylor University Medical Centre in Dallas, USA,cured lung cancer in some patients and slowed the progress of the disease in others.Researchers have reported encouraging findings from this small study.Forty-three patients suffering fromlung cancer were involved in these trials.Ten of these patients were in the early stages and thirty-three in the advanced stages of the disease.They were injected with the vaccine every two weeks for three months,and were carefully monitored for three years.In three of the patients in the advanced stages of cancer,the disease disappeared and in the others,it did not spread for five to twenty-four months.However,no great difference was seen in the patients in the early stages of the illness.This new vaccine uses the patient's own immune system.It is made specifically for each patient and is injected into the arm or leg. It stimulates（刺激）the body' s immune system, which then recognizes that the cancer cells are harmful,and attacks and destroys them.The vaccine could be effective against other forms of cancer. It offers great hope for the treatment of cancer in general,although further studies are needed before such treatment can be widely used.Patients in the early stages of the disease recovered more quickly in the trial.A:RightB:WrongC:Not mentioned
共用题干Promising Results From Cancer StudyA new experimental vaccine（疫苗）has shown promising results in the fight against lung cancer. In a small Texas-based study,a vaccine developed by scientists at Baylor University Medical Centre in Dallas, USA,cured lung cancer in some patients and slowed the progress of the disease in others.Researchers have reported encouraging findings from this small study.Forty-three patients suffering fromlung cancer were involved in these trials.Ten of these patients were in the early stages and thirty-three in the advanced stages of the disease.They were injected with the vaccine every two weeks for three months,and were carefully monitored for three years.In three of the patients in the advanced stages of cancer,the disease disappeared and in the others,it did not spread for five to twenty-four months.However,no great difference was seen in the patients in the early stages of the illness.This new vaccine uses the patient's own immune system.It is made specifically for each patient and is injected into the arm or leg. It stimulates（刺激）the body' s immune system, which then recognizes that the cancer cells are harmful,and attacks and destroys them.The vaccine could be effective against other forms of cancer. It offers great hope for the treatment of cancer in general,although further studies are needed before such treatment can be widely used.Every patient was injected with the same vaccine.A:RightB:WrongC:Not mentioned
共用题干Promising Results From Cancer StudyA new experimental vaccine（疫苗）has shown promising results in the fight against lung cancer. In a small Texas-based study,a vaccine developed by scientists at Baylor University Medical Centre in Dallas, USA,cured lung cancer in some patients and slowed the progress of the disease in others.Researchers have reported encouraging findings from this small study.Forty-three patients suffering fromlung cancer were involved in these trials.Ten of these patients were in the early stages and thirty-three in the advanced stages of the disease.They were injected with the vaccine every two weeks for three months,and were carefully monitored for three years.In three of the patients in the advanced stages of cancer,the disease disappeared and in the others,it did not spread for five to twenty-four months.However,no great difference was seen in the patients in the early stages of the illness.This new vaccine uses the patient's own immune system.It is made specifically for each patient and is injected into the arm or leg. It stimulates（刺激）the body' s immune system, which then recognizes that the cancer cells are harmful,and attacks and destroys them.The vaccine could be effective against other forms of cancer. It offers great hope for the treatment of cancer in general,although further studies are needed before such treatment can be widely used.Over forty people participated in the study.A:RightB:WrongC:Not mentioned
共用题干Promising Resnlts from Cancer StudyA new experimental vaccine（疫苗）has shown promising results in the fight against lung cancer.In a small Texas-based study,a vaccine developed by scientists at Baylor University Medical Centre in Dallas,USA,cured lung cancer in some patients and slowed the progress of the disease in others.Researchers have reported encouraging findings from this small study.Forty一three patients suffering from lung cancer were involved in these trials.Ten of these patients were in the early stages and thirty-three in tho advanced stages of the disease.They were injected with the vaccine every two weeks for three months,and were carefully monitored for three years.In three of the patients in the advanced stages of cancer,the disease disappeared and in the others,it did not spread for five to twenty-four months.However,no great difference was seen in the patients in the early stages of the illness.This new vaccine uses the patient's own immune system.It is made specifically for each patient and is injected into the arm or leg.It stimulates（刺激）the body's immune system, which then recognizes that the cancer cells are harmful,and attacks and destroys them.The vaccine could be effective against other forms of cancer.It offers great hope for the treatment of cancer in general,although further studies are needed before such treatment can be widely used.Patients in the early stages of the disease recovered more quickly in the trial.A:RightB:WrongC:Not mentioned
The outbreak of swine flu that was first detected in Mexico was declared a global epidemic on June 11,2009.It is the first worldwide epidemic 1by the World Health Organization in 41 years.The heightened alert_2 an emergency meeting with flu experts in Geneva that convened after a sharp rise in cases in Australia,and rising 3_in Britain,Japan,Chile and elsewhere.But the epidemic is"4"in severity,according to Margaret Chan,the organization's director general,5 the overwhelming majority of patients experiencing only mild symptoms and a full recovery,often in the 6 of any medical treatment.The outbreak came to global__7 in late April 2009,when Mexican authorities noticed an unusually large number of hospitalizations and deaths 8 healthy adults.As much of Mexico City shut down at the height of a panic,cases began to 9 in New York City,the southwestern United States and around the world.In the United States,new cases seemed to fade 10 warmer weather arrived.But in late September 2009,officials reported there was 11 flu activity in almost every state and that virtually all the 12 tested are the new swine flu,also known as（A）H1N1,not seasonal flu.In the U.S.,it has__13 more than one million people,and caused more than 600 deaths and more than 6,000 hospitalizations.Federal health officials__14_Tamiflu for children from the national stockpile and began 15 orders from the states for the new swine flu vaccine.The new vaccine,which is different from the annual flu vaccine,is 16 ahead of expectations.More than three million doses were to be made available in early October 2009,though most of those 17 doses were of the FluMist nasal spray type,which is not 18 for pregnant women,people over 50 or those with breathing difficulties,heart disease or several other 19.But it was still possible to vaccinate people in other high-risk group:health care workers,people20_infants and healthy young people.19选？A.problemsB.issuesC.agoniesD.sufferings
共用题干第一篇New Attempts to Eradicate AIDS VirusA high-profile attempt to eradicate the AIDS virus in a few patients continues to show promise.But researchers won't know for a year or more whether it will work,scientist David Ho told journalists here Wednesday for the Fourth Conference on Viruses and Infections."This is a study that's in progress,"says Ho,head of the Aaron Diamond AIDS Research Center, New York.The study involves 20 people who started combinations of anti-HIV drugs very early in the course of the disease,within 90 days of their infections.They'ye been treated for up to 18 months.Four others have dropped out because of side effects or problems complying with the exacting drug system.The drugs have knocked the AIDS virus down to undetectable levels in the blood of all remaining patients.And,in the latest development,scientists have now tested lymph nodes and semen from a few patients and found no virus reproducing there,Ho says."Bear in mind that undetectable does not equal absent,"Ho says.Ho has calculated that the drugs should be able to wipe out remaining viruses一at least from known reservoirs throughout the body—in two to three years.But the only way to prove eradication would be to stop the drugs and see if the virus comes back.On Wednesday,Ho said he wouldn't ask any patient to consider that step before 2(1/2)years of treatment.And he emphasized that he is not urging widespread adoption of such early,aggressive treatment outside of trials.No one knows the long-term risks.But other scientists are looking at similar experiments.A federally funded study will put 300 patients on triple-drug treatments and then see if some responding well after six months can continue to suppress the virus on just one or two drugs,says researcher Douglas Richman of the University of California,San Diego. Some patients in that study also may be offered the chance to stop therapy after 1 8 months or more,he says. We prove that the drugs have wiped out the remaining viruses by________.A:using up all the drugs at onceB:waiting for the virus to die slowlyC:asking the patients'feeling about the diseaseD:stopping the drugs to see if the virus comes back
共用题干About End-of-Life CareDying patients are happier,less depressed,have less pain and survive longer when their end-of-life care wishes are known and followed,researchers report.This type of patient-centered care can also help keep health costs down________(51)patients who don't want aggressive treatment,the University of California,Los Angeles (UCLA) research team said."You can improve care while________(52)cost by making sure that everything you do is centered on what the patients want,what his or her specific goals are and tailor a treatment plan to ensure we_________(53)the specific care he or she wants,"Dr. Jonathan Bergman,a clinical scholar and fellow in the urology department,said in a university news release.__________(54)many cases,dying patients are given aggressive treatments that don't help them and_________(55)higher costs.Patients who want__________(56)care should receive it,but many don't want it and haven't been_________(57)about their wishes,according to Bergman and colleagues,who are testing patient-centered care__________(58)cancer patients.To change the situation,doctors need to be educated about patient-centered care,the researchers said. They also_________(59)that changes to Medicare should be considered.But this is a highly controversial topic that has been sidelined after recent suggested changes were characterized as creating"death panels"."Given the disproportionate cost of care at the very________(60)of life,the issue should be revisited,"Bergman and colleagues wrote."We should address goals of care,not to___________(61)aggressive care to those who want it,but to ensure that we deliver aggressive care only to those who__________(62).This reduces costs and improves outcomes."The study authors noted that,according to the results of a 2004 study,30 percent of Medicare dollars are________(63)on the 5 percent of beneficiaries who die each year,and one-third of the costs in the final year of life_________(64)during the final month.Previous research has shown that patient-centered care can reduce the costs in the last week of life________(65)36 percent and that patients who receive such care are less likely to die in an intensive care unit._________(63)A:spent B:costC:wasted D:got
共用题干第一篇New Attempts to Eradicate AIDS VirusA high-profile attempt to eradicate the AIDS virus in a few patients continues to show promise.But researchers won't know for a year or more whether it will work,scientist David Ho told journalists here Wednesday for the Fourth Conference on Viruses and Infections."This is a study that's in progress,"says Ho,head of the Aaron Diamond AIDS Research Center, New York.The study involves 20 people who started combinations of anti-HIV drugs very early in the course of the disease,within 90 days of their infections.They'ye been treated for up to 18 months.Four others have dropped out because of side effects or problems complying with the exacting drug system.The drugs have knocked the AIDS virus down to undetectable levels in the blood of all remaining patients.And,in the latest development,scientists have now tested lymph nodes and semen from a few patients and found no virus reproducing there,Ho says."Bear in mind that undetectable does not equal absent,"Ho says.Ho has calculated that the drugs should be able to wipe out remaining viruses一at least from known reservoirs throughout the body—in two to three years.But the only way to prove eradication would be to stop the drugs and see if the virus comes back.On Wednesday,Ho said he wouldn't ask any patient to consider that step before 2(1/2)years of treatment.And he emphasized that he is not urging widespread adoption of such early,aggressive treatment outside of trials.No one knows the long-term risks.But other scientists are looking at similar experiments.A federally funded study will put 300 patients on triple-drug treatments and then see if some responding well after six months can continue to suppress the virus on just one or two drugs,says researcher Douglas Richman of the University of California,San Diego. Some patients in that study also may be offered the chance to stop therapy after 1 8 months or more,he says. Which is NOT true about Ho's study?A:20 patients were involved in the study.B:The patients have used several anti-HIV drugs.C:16 patients withdrew from the experiment.D:The patients have been treated for up to 1 8months.
单选题Greene thought that the study proved _____.Athe importance of a Mediterranean-style diet to diabetes patients.Bthe effect of a Mediterranean-style diet which can replaces medication.Cthe rationality for diabetes patients to refuse medication.Dthe unnecessity for prediabetes to take medication.
单选题The recent test in Britain shows that.AEMS provides better services than the private couriersBthe private couriers are as cheap as EMSCthe private couriers are faster than EMSDEMS is always cheaper than the private couriers
判断题A recent study by the Center for Economic Policy Research says that, in order to ease imbalances, the European Union needs to make changes while the United States has to spend more and save less.A对B错
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?
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
填空题What was the result of a recent study?Thinner people are more ____ than fatter people.