问题：Who was the first man to reach the summit of Mount Everest?A:top B:bottom C:end D:site
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问题：共用题干 The World's Best-Selling MedicineSince ancient times,people all over the world have used willow to stop pain. The willow tree contains salicylic acid（水杨酸）.This stops pain, but there is one problem. Salicylic acid also hurts the stomach. In 1853,a French scientist made a mixture from willow that did not hurt the stomach.However,his mixture was difficult to make,and he did not try to produce or sell it.In 1897,in Germany,Felix Hoffmann also made a mixture with salicylic acid. He tried it himself first and then gave it to his father because his father was old and in a lot of pain.His father's pain went away,and the mixture did not hurt his stomach.Hoffmann worked for Bayer,a German company. He showed his new drug to his manager,who tested the drug and found that it worked well.Bayer decided to make the drug.They called it aspirin and put the Bayer name on every pill.Aspirin was an immediate success. Almost everyone has pain of some kind,so aspirin answered a true need. Aspirin was cheap,easy to take,and effective. It also lowered fevers.Aspirin was a wonder drug.At first,Bayer sold the drug through doctors,who then sold it to their patients. In 1915,the company started to sell aspirin in drugstores.In the United States,Bayer had a patent（专利权）on the drug. Other companies could make similar products and sell them in other countries,but only bayer could make and sell aspirin in the United States.In time,Bayer could no longer own the name aspirin in the United States. Other companies could make it there,too.However,Bayer aspirin was the most well known,and for many years,it was the market leader.By the 1950s,new painkillers were on the market. Aspirin was no longer the only way to treat pain and reduce fever. Bayer and other companies looked for other drugs to make.However,in the l970s they got a surprise. Doctors noticed that patients who were taking aspirin had fewer heart attacks than other people. A British researcher named John Vane found the reason aspirin helped to prevent heart attacks.In 1982,he won the Nobel prize for his research. Doctors started to tell some of their patients to take aspirin every day to prevent heart attacks.It has made life better for the many people who take it. It has also made a lot of mon-ey for companies like Bayer that produce and sell it!What has happened to aspirin since new painkillers came on the market?A: Companies have stopped selling it.B: It has become the best-selling painkiller.C: Its new use has been discovered.D: Doctors have sold it to patients.
问题：We are aware of the 【potential】 problems. A. possible B. global C. ongoing D. central
问题： Power Napping is Good f the I.Q.Today we hear me me about the imptance of getting enoughsleep—about eight hours a night. Sleep can help heal give energy toboth the body the brain. ____1____ It seems almost certain that the thirdof our lives that we spend asleep has a great effect on the two-thirds that weare awake. Sleep affects our emotions, memy, focus, behavi.Studies show that people in developed countries spend less timeasleep me time at wk commuting. Dr. Karine Spiegel, at theUniversity of Chicago, has found that the average length of sleep has gone downfrom nine hours a night in 1910 to seven--a-half hours a night today.However, our bodies cannot function well without enough sleep. ____2____Accding to Canadian scientist Dr. Stanley Cen, every hour of lost sleep at nightcauses us to lose one I.Q. point the next day. F example, when someone getsonly five six hours of sleep each night f a week, the person’s I.Q. couldgo down 15 points me. ____3____Most sleep experts say that humans need at least eight hours ofsleep every day, but it should be in two stages: a long sleep at night ashter nap in the afternoon. Some companies help their employees follow thisadvice. ____4____ They say this makes the wkers much me efficient.To study sleep deprivation (not getting enough sleep), scientistsuse a test called the Multiple Sleep Latency Test (MSLT). During the test, aperson stays in a darkened, quiet room during the daytime. Scientists believethat a sleep-deprived person will fall asleep quickly. If it takes ten minutes longer to fall asleep, the person is probably getting enough sleep.Scientists have also found that the time of year seems to affect howmuch sleep we need. ____5____ However, in the summer, people sometimes sleep aslittle as six hours, without having any problems.词汇：emotion n. 情绪commuting n. 乘公交车上下班，通勤I.Q. n. 智商(全称为intelligent quotient)deprivation n. 剥夺，匮乏Sleep Latency Test n. 睡眠潜伏期注释：1.have/has an effect on... 对……有效果的2.go down from... to...从………降至……练习：A.They allow them to “power nap” in the afternoon, if only f 20 minutes.B.Losing just one two hours of sleep a night, over a long period oftime, can cause serious health problems.C.People usually sleep longer in the winter, sometimes as much as 14hours a night.D.People in power are me intelligent because they take naps.E.Medical experts now believe that sleep is even me imptant fhealth than diet exercise.F.That’s why, without enough sleep, a nmally intelligent person may startto have difficulty doing daily tasks.
问题：The dentist has decided to take out the girl's bad tooth.A:.digB:drawC:pullD:extract
问题：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.All the patients were from Dallas.A:RightB:WrongC:Not mentioned
问题：There is no risk to public health.A:point B:danger C:chance D:hope
问题：共用题干 The majority of people,about nine out of ten,are right-handed.Not until recently,people who were left-handed were considered__________(51),and once children showed this tendency they were forced to use their right hands. Today left-handedness is generally_________(52),but it is still a disadvantage in a world________(53)most people are right-handed.For example,most tools and implements are still designed for right-handed people.In sports,__________(54)contrast,doing things with the left hand or foot,is often an advantage.Throwing,kicking,punching or batting from the"wrong"side may result_________(55)throwing off many opponents who are more accustomed to dealing with the_________(56)of players who are right-handed.This is why,in many ________(57)at a professional level,a higher proportion of players are left-handed than in the population as a whole.The word"right"in many languages means"correct"or is_________(58)with lawfulness, whereas the words associated__________(59)"left",such as"sinister",generally have_________ (60)associations.Moreover,among a number of primitive peoples,there is_________(61)close association between death and the left hand.In the past,in most Western societies,children were often forced to use their right hands,especially to write with.In some cases the left hand was_________(62)behind the child's back so that it could not be used.If,in the future,they are allowed to choose,_________(63)will certainly be more left handers,and probably_________(64)people with minor psychological disturbances as a result of being forced to use their_________(65)hand._________(57)A:games B:hobbiesC:activities D:rounds
问题： She was a puzzle.A:girl B:woman C:problem D:mystery
问题：He is but a child.A: probably B: not C: only D: hardly
问题：共用题干 Going on a DietA typical person needs about 1,800 calories per day to stay alive.These calories keep your heart ______(51)and your lungs breathing.They keep your organs operating______(52)and your brain running.They also keep your body warm.A person______(53)weight because he or she takes in more calories per day than needed.The only way to lose fat is to______(54)the number of calories that you take in per day.This is the basic______(55)behind going on a diet.______(56),diets don't work for most people.They do lose weight but then_______(57)the diet and put it back.Building a sensible diet and exercise plan is the key to______(58)a consistent weight.You need to figure out how many calories you need in a day and how many you______(59)take in.The next step is to add exercise so that you can______(60)the number of calories you can consume per day.Exercise charts can show you how many calories different_______(61)of exercise can burn.Burning 250 or 500 calories per day can______(62)a big difference.You can ride an exercise bike while you are watching TV or you can_(63)the stairs instead of the elevator.Find an exercise______(64).Exercise can be a lot easier if there is someone to talk to.It's a good idea to wear firm-fitting clothes if you are on a diet.______(65)clothing acts as a reminder of what you are trying to accomplish.52._________A:properly B:appropriately C:approximately D:effectively
问题：共用题干 More About Alzheimer 's DiseaseScientists have developed skin tests that may be used in the future to identify people with Alzheimer's disease and may ultimately allow physicians to predict who is at risk of getting this neurological（神经病学的）disorder.The only current means of diagnosing the disease in a living patient is a long and expensive series of tests that eliminate every other cause of dementia. "Since Alois Alzheimer described the disease nearly a century ago,people have been trying to find a way to accurately diagnose it in its early stages,"said Patricia Grady,acting director of the National Institute of Neurological Disorders and Stroke in Bethesda,Maryland."This discovery,if confirmed,could prove a big step forward in our efforts to deal with and understand the disease."Alzheimer's is the single greatest cause of mental deterioration in older people,affecting between 2.5 million and 4 million people in the United States alone.The devastating disorder gradually destroys memory and the ability to function,and eventually causes death.There is currently no known treatment for the disease.Researchers discovered that the skin cells of Alzheimer’s patients have defects that interfere with their ability to regulate the flow of potassium in and out of the cells.The fact that the cell defects are present in the skin suggests that Alzheimer's results from physiological changes throughout the body,and that dementia may be the first noticeable effect of these changes as the defects affect the cells in the brain,scientists said.The flow of potassium is especially critical in cells responsible for memory formation.The scientists also found two other defects that affect the cells'supply of calcium,another critical element.One test developed by researches calls for growing skin cells in a laboratory culture and then testing them with an electrical detector to determine if the microscopic tunnels that govern the flow of potassium are open.Open potassium channels create a unique electrical signature.A spokesman for the Alzheimer's Association said that if the validity of the diagnostic test can be proven it would be an important development,but he cautioned that other promising tests for Alzheimer's have been disappointing.The newly developed skin tests may be used in the future to allow doctors to______.A:cure those with Alzheimer's diseaseB:discover the cause of Alzheimer's diseaseC:predict who might get Alzheimer's diseaseD:find the consequences of Alzheimer's disease
问题：共用题干 Health Insurance（保险）Most Americans are responsible for their own medical costs.These can be extremely high if a person gets very_________(1)or has an accident.So people buy a health insurance plan to make sure these costs will be_________(2).Most American colleges and universities have_________(3)health centers.There may even be a teaching hospital that can treat more serious__________(4).Some medical services may be included in the cost of attending a school.But health insurance is usually needed for extra services._________(5)most full-time college students must have insurance.Students may already be protected under their family's health plan.If not,many colleges offer_________(6)own plans.The University of Michigan will be our example.Students pay a health service fee. Then there is no extra charge when they are treated for minor__________(7)problems at the University Health Center. But the school wants students to have health insurance to pay_______(8)other services.The insurance plan________(9)by the university costs about one thousand seven hundred dollars a year. Such health insurance_________(10)generally pay for hospital services,emergency room care and visits to doctors.They___________(11)do not pay for care of the teeth.And they usually do not pay for treatment of medical conditions that existed________(12)the student arrived at school.International students at the University of Michigan have two________(13).They can buy the university health plan.Or they can________(14)private insurance that is approved by the university.The school also offers a special International Student Insurance Plan.This pays for most of the services offered__________(15)the University Health Center that are not included in the health service fee._________(3) A: family B:woman C: man D: student
问题：Some comments are just inviting trouble.A:keeping out of B:getting into C:asking for D:suffering from
问题： Recent pressure at work may account for his behavior.A: explain B: change C: influence D: embody
问题：共用题干 The majority of people,about nine out of ten,are right-handed.Not until recently,people who were left-handed were considered__________(51),and once children showed this tendency they were forced to use their right hands. Today left-handedness is generally_________(52),but it is still a disadvantage in a world________(53)most people are right-handed.For example,most tools and implements are still designed for right-handed people.In sports,__________(54)contrast,doing things with the left hand or foot,is often an advantage.Throwing,kicking,punching or batting from the"wrong"side may result_________(55)throwing off many opponents who are more accustomed to dealing with the_________(56)of players who are right-handed.This is why,in many ________(57)at a professional level,a higher proportion of players are left-handed than in the population as a whole.The word"right"in many languages means"correct"or is_________(58)with lawfulness, whereas the words associated__________(59)"left",such as"sinister",generally have_________ (60)associations.Moreover,among a number of primitive peoples,there is_________(61)close association between death and the left hand.In the past,in most Western societies,children were often forced to use their right hands,especially to write with.In some cases the left hand was_________(62)behind the child's back so that it could not be used.If,in the future,they are allowed to choose,_________(63)will certainly be more left handers,and probably_________(64)people with minor psychological disturbances as a result of being forced to use their_________(65)hand._________(59)A:by B:withC:to D:at
问题：共用题干 第二篇Ceremonial bathing（仪式性的沐浴）has existed for thousands of years and has many forms, one of which is the sauna. The Finns have perfected the steam bath,or sauna,which may be taken, usually in an enclosed room,by pouring water over hot rocks or as a dry heat bath.The Japanese, Greeks,Turks and Russians as well as Native Americans have forms of the sweat bath in their bathing rituals.Dry heat and steam baths had advocates in ancient Rome and pre-Columbian Americans used sweat lodges.The earliest saunas were probably underground caves heated by a fire that naturally filled with smoke as chimney making was unknown at that time.A fire kept in a fire-pit would heat the rock walls of the cave.After reaching full heat,the smoke was let out of the cave and the stones would retain heat for several hours.A few people today say that the smoke sauna,"savusauna"is the only true sauna experience and that all saunas should have at least a background odor（气味）or smoke. Today most saunas use electric stoves,although gas and wood-burning stoves are available.Saunas are relaxing and stress relieving. Those with muscle aches or arthritis（关节炎）may find that the heat relaxes muscles and relieves pain and inflammation（炎症）.Asthma patients find that the heat enlarges air passageways of the lung and facilitates breathing. Saunas do not cure the common cold but they may help to alleviate congestion（减轻胸闷感）and speed recovery time. The body's core temperature usually rises 1—2 degrees while in the sauna,thus imitating a slight fever. The sauna could be considered to follow the old saying"feed a cold,starve a fever".The regular use of a sauna may decrease the likelihood of getting a cold in the first place.Sauna is good for your skin as the blood flow to the skin increases and sweating occurs.Adults sweat about 2 pounds of water per hour on average in a sauna. A good sweat removes dirt and grime （污垢；尘垢）from pores and gives the skin a healthy glow. The loss in water weight is temporary as the body's physiological mechanisms will quickly restore proper volumes.The cardiovascular system（心血管系统）gets a work out（运动，锻炼）as the heart must pump harder and faster to move blood to the surface for heat exchange.Heart rate may increase from 72 beats per minute on average to 100一150 beats per minute.A normal heart can handle these stresses but those with heart trouble wishing to begin to use a sauna should seek a doctor's advice. The elderly and those with diabetes（糖尿病）should check with their doctor prior to beginning to take saunas.Pregnant women should not take saunas,particularly in the first three months. Indeed,everyone just starting out should take short sessions（做某事的一段时间）at first to become accustomed to this type of bath.According to the fourth paragraph,sauna gives the skin a healthy glow because________.A:pores are cleaned by sweatB:water is lost by sweatingC:blood moves to the surface for heat exchangeD:the heart pumps harder and faster
问题：共用题干 Study Says Dogs Can Smell CancerDogs are known for their sense of smell. They can find missing people and things like bombs and illegal drugs .Now a study suggests that the animal known as man's best friend can even find bladder（膀胧）cancer.Cancer cells are thought to produce chemicals with unusual odors（气味）.Researchers think dogs have the ability to smell these odors,even in very small amounts,in urine（尿）.The sense of smell in dogs is thousands of times better than in humans.The study follows reports of cases where,for example,a dog showed great interest in a growth on the leg of its owner. The mole（痣）was later found to be skin cancer.Carolyn Willis led a team of researchers at Amersham Hospital in England.They trained different kinds of dogs for the experiment. The study involved urine collected from bladder cancer patie nts,from people with other diseases and from healthy people.Each dog was tested eight times.In each test there were seven samples for the dogs to smell.The dog was supposed to signal the one from a bladder cancer patient by lying down next to it.Two cocker spaniels（短腿长毛垂耳小猎犬）were correct fifty-six percent of the time. But the scientists reported an average success rate of forty-one percent.As a group,the study found that the dogs chose the correct sample twenty-two out of fifty-four times .That is almost three times more often than would be expected by chance alone.The British Medical Journal published the research .In all,thirty-six bladder cancer patients and one hundred and eight other people took part.During training,all the dogs reportedly even identified a cancer in a person who had testedhealthy before the study.Doctors found a growth on the person's right kidney（肾）.Bladder cancer is the ninth most common cancer worldwide.The International Agency for Research on Cancer says this disease kills more than one hundred thousand people each year. Doctors say cigarette smoking is the leading cause of bladder cancer.The person who had tested healthy before the study______.A: dropped outB: passed awayC: was found to have cancerD: was found to remain healthy
问题：共用题干 Relieving the Pain"Exercise may be the best treatment of chronic pain,"say doctors at a new clinic for dealing with pain. "People with chronic pain need to stop lying around,go out more,and start exercising."The instinctive reac-tion to acute pain is to stop moving and to try to protect the source of pain.But it seems that this is often not productive,especially in the case of back pain.Back pain,after headaches and tiredness,has become the third most common reason for people to visit their doctors.Painful backs now account for millions of days offwork.Lumbar（腰部的）pains are partly the price humans pay for taking their forelimbs off the ground , but they are made worse by a sedentary（久坐不动的）lifestyle. Lack of exercise slowly decreases the flexibility and strength of muscles,so that it is more difficult to take pressure off the site of pain.Exercise is essential. It releases endorphins（内啡肤）,the body's " feel-good " chemicals , which are natural painkillers. In fact, these are so important that researchers are now looking for drugs that can maintain a comfortable level of en- dorphins in the body.Most people who go to a family doctor complaining of pain are prescribed pain-killing drugs rather than exercise.Since finding the cause of backache is not so easy,doctors frequently do not know the precise cause of the discomfort,and as the pain continues,sufferers end up taking stronger doses or a series of different drugs."It's crazy,"says Dr. Brasseur,a therapist at the International Association for the Study of Pain. "Some of them are taking different drugs prescribed by different doctors.I've just seen a patient who was tak- ing two drugs which turned out to be the same thing under different names."A generation of new pain clinics now operates on the basis that drugs are best avoided.Once patients have undergone the initial physical and psychological check up,their medication is cut down as much as pos- sible.Taking patients off drugs also prepares them for physical activity.In some pain-relief clinics,patients begin the day with muscle contraction and relaxation exercises,fol- lowed by an hour on exercise bikes. Later in the day , they practice tai chi（太极）,self-defense , and deep thought. This compares with an average of two-and-a-half hours' physiotherapy（理疗）a week in a traditional hospital program."The idea is to strengthen and to increase long-lasting energy,flexibility,and confidence," explains Bill Wiles,a consultant pain doctor in Liverpool."Patients undergoing this therapy get back to work and resume healthy active lifestyles much sooner than those subjected to more conservative treatment."Headaches are partly caused by lack of exercise.A:RightB:WrongC:Not mentioned
问题：共用题干 Warm People Likely to Keep Cold at BayStaying positive through the cold season could be your best defense against getting ill,new study findings suggest.In an experiment that exposed healthy volunteers to a cold or flu virus,researchers found that people with a generally sunny disposition were less likely to fall ill.The findings,published in the journal Psychosomatic Medicine,build on evidence that a"positive emotional style"can help ward off the common cold and other illnesses.Researchers believe the reasons may be both objective as in happiness boosting immune function and subjective as in happy people being less troubled by a scratchy throat or runny nose?"People with a positive emotional style may have different immune responses to the virus,"explained lead study author Dr Sheldon Cohen of Carnegie Mellon University in Pittsburgh."And when they do get a cold,they may interpret their illness as being less severe."Cohen and his colleagues had found in a previous study that happier people seemed less susceptible to catching a cold,but some questions remained as to whether the emotional trait itself had the effect.For the new study,the researchers had 193 healthy adults complete standard measures of personality traits,self-perceived health and emotional"style".Those who tended to be happy,energetic and easy-going were judged as having a positive emotional style,while those who were often unhappy,tense and hostile had a negative style.The researchers gave them nasal drops containing either a cold virus or a particular flu virus.Over the next six days,the volunteers reported on any aches,pains,sneezing or congestion they had,while the researchers collected objective data,like daily mucus production.Cohen and his colleagues found that based on objective measures of nasal woes,happy people were less likely to develop a cold.The researchers chose 193 adults who had a negative style for the study.A:Right B:Wrong C:Not mentioned
