单选题She's part of a team of scientists who are（）upon cancer research.A workedB arrangedC engagedD involved

考题听力原文：W: Who's your new secretary, Tom?M: I'm pleased with the work she's been doing so far.What do we know about Tom's secretary?A．She's not efficient.B．She's often late.C．She's capable.D．She's honest.

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考题 Before she began to study at Beijing University, she( )in a factory for five years.A. had workedB. workedC. has workedD. would work

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考题 If the ship is disabled by excepted perils while completing a voyage on which she was ______ at the time of chartering，the Shipowner will not be excused．A.doneB.madeC.engagedD.taken

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考题共用题干 Exercise Cuts Cancer Deaths in MenMen who exercise often are less likely to die from cancer than those who_____(51),new research published in the British Journal of Cancer revealed yesterday.A team of scientists from the Karolinska Institute in Sweden looked_______(52)the effect of physical activity and cancer risk in 40,708 men aged________(53)45 and 79._________(79.)The seven-year study found that men_________(54)walked or cycled for at least 30 minutes a day had a 34 per cent lower_________(55)of dying from cancer than the men who did less exercise or nothing at all. __________(56)the period studied,3,714 men developed cancer and 1,153 died from the disease.The researchers suggest that half an hour's walking_________(57)cycling a day increased survival among these men by 33 per cent.The researchers surveyed men from two countries in central Sweden about their lifestyle and the amount of________(58)activity they were usually doing.They then scored these responses and compared the results with data on cancer diagnosis and death officially recorded in a central cancer registry（登记簿）over a seven-year_________(59).Lead author,Professor Alicja Wolk,said,"These results clearly show for the first time the effect that very simple and basic daily_______(60)such as walking or cycling has in reducing cancer death risk in middle-aged and elderly________(61)."Dr Lesley Walker,director of cancer information at Cancer Research UK,said,"This study gives us a clear indication that men who exercise are less_________(62)to die from cancer,and that they are more likely to________(63)the disease if they get it. It's not entirely clear from this study what role exercise plays in preventing________(64)in men,but we do know that a healthy lifestyle can prevent up to half of all cancers—and_______(65)exercise forms a key part of this."_________(65)A:randomB:rareC:regularD:rough

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考题共用题干第一篇In what may be bad news for bars and pubs,a European research group has found that people drinking alcohol outside of meals have a significantly higher risk of cancer in the mouth and neck than do those taking their libations with food.Luigino Dal Maso and his colleagues studied the drinking pattems of 1 ,500 patients from four cancer studies and another 3,500 adults who had never had cancer.After the researchers accounted for the amount of alcohol consumed,they found that individuals who downed a significant share of their alcohol outside of meals faced at least a 50 to 80 percent risk of cancer in the oral cavity（腔）,pharynx（咽）,and esophagus（食管）,when compared with people who drank only at meals.Consuming alcohol without food also increased by at least 20 percent the likelihood of laryngeal（喉）cancer."Roughly 95 percent of cancers at these four sites traced to smoking or drinking by the study volunteers,"Dal Maso says.The discouraging news,his team reports, is that drinking with meals didn't eliminate cancer risk at any of the sites.For their new analysis,the European scientists divided people in the study into four groups, based on how many drinks they reported having in an average week.The lowest-intake group includ-ed people who averaged up to 20 drinks a week.The highest group reported downing at least 56 servings of alcohol weekly for an average of eight or more per day.Cancer risks for the mouth and neck sites rose steadily with consumption even for people who reported drinking only with meals.For instance,compared with people in the lowest-consumption group,participants who drank 21 to 34 alcohol servings a week at least doubled their cancer risk for all sites other than the laryngeal cancer. If people in these consumption groups took some of those drinks outside meals,those in the higher consumption group at least quadrupled their risk for oral cavity and esophageal cancers.People in the highest-consumption group who drank only with meals had 10 times the risk of oral cancer,7 times the risk of pharyngeal cancer,and 16 times the risk of esophageal cancer compared with those who averaged 20 or fewer drinks a week with meals.In contrast,laryngeal cancer risk in the high-intake,with-meals-only group was only triple that in the low-intake consumers who drank with meals."Alcohol can inflame tissues.Over time,that inflammation can trigger cancer."Dal Maso says.He suspects that food reduced cancer risk either by partially coating digestive-tract tissues or by scrubbing alcohol off those tissues.He speculates that the reason laryngeal risks were dramatically lower for all study participants traces to the tissue's lower exposure to alcohol.Researchers have found that the risk of cancer in the mouth and neck is higher with people_________.A:who drink alcohol outside of mealsB:who drink alcohol at mealsC:who never drink alcoholD:who drink alcohol at bars and pubs

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考题共用题干第一篇In what may be bad news for bars and pubs,a European research group has found that people drinking alcohol outside of meals have a significantly higher risk of cancer in the mouth and neck than do those taking their libations with food.Luigino Dal Maso and his colleagues studied the drinking pattems of 1 ,500 patients from four cancer studies and another 3,500 adults who had never had cancer.After the researchers accounted for the amount of alcohol consumed,they found that individuals who downed a significant share of their alcohol outside of meals faced at least a 50 to 80 percent risk of cancer in the oral cavity（腔）,pharynx（咽）,and esophagus（食管）,when compared with people who drank only at meals.Consuming alcohol without food also increased by at least 20 percent the likelihood of laryngeal（喉）cancer."Roughly 95 percent of cancers at these four sites traced to smoking or drinking by the study volunteers,"Dal Maso says.The discouraging news,his team reports, is that drinking with meals didn't eliminate cancer risk at any of the sites.For their new analysis,the European scientists divided people in the study into four groups, based on how many drinks they reported having in an average week.The lowest-intake group includ-ed people who averaged up to 20 drinks a week.The highest group reported downing at least 56 servings of alcohol weekly for an average of eight or more per day.Cancer risks for the mouth and neck sites rose steadily with consumption even for people who reported drinking only with meals.For instance,compared with people in the lowest-consumption group,participants who drank 21 to 34 alcohol servings a week at least doubled their cancer risk for all sites other than the laryngeal cancer. If people in these consumption groups took some of those drinks outside meals,those in the higher consumption group at least quadrupled their risk for oral cavity and esophageal cancers.People in the highest-consumption group who drank only with meals had 10 times the risk of oral cancer,7 times the risk of pharyngeal cancer,and 16 times the risk of esophageal cancer compared with those who averaged 20 or fewer drinks a week with meals.In contrast,laryngeal cancer risk in the high-intake,with-meals-only group was only triple that in the low-intake consumers who drank with meals."Alcohol can inflame tissues.Over time,that inflammation can trigger cancer."Dal Maso says.He suspects that food reduced cancer risk either by partially coating digestive-tract tissues or by scrubbing alcohol off those tissues.He speculates that the reason laryngeal risks were dramatically lower for all study participants traces to the tissue's lower exposure to alcohol.Which cancer risk is the lowest among all the four kinds of cancer mentioned in the passage?A:Oral cancer. B:Laryngeal cancer.C:Pharyngeal cancer. D:Esophageal cancer.

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考题共用题干 Exercise Cuts Cancer Deaths in MenMen who exercise often are less likely to die from cancer than those who_____(51),new research published in the British Journal of Cancer revealed yesterday.A team of scientists from the Karolinska Institute in Sweden looked_______(52)the effect of physical activity and cancer risk in 40,708 men aged________(53)45 and 79._________(79.)The seven-year study found that men_________(54)walked or cycled for at least 30 minutes a day had a 34 per cent lower_________(55)of dying from cancer than the men who did less exercise or nothing at all. __________(56)the period studied,3,714 men developed cancer and 1,153 died from the disease.The researchers suggest that half an hour's walking_________(57)cycling a day increased survival among these men by 33 per cent.The researchers surveyed men from two countries in central Sweden about their lifestyle and the amount of________(58)activity they were usually doing.They then scored these responses and compared the results with data on cancer diagnosis and death officially recorded in a central cancer registry（登记簿）over a seven-year_________(59).Lead author,Professor Alicja Wolk,said,"These results clearly show for the first time the effect that very simple and basic daily_______(60)such as walking or cycling has in reducing cancer death risk in middle-aged and elderly________(61)."Dr Lesley Walker,director of cancer information at Cancer Research UK,said,"This study gives us a clear indication that men who exercise are less_________(62)to die from cancer,and that they are more likely to________(63)the disease if they get it. It's not entirely clear from this study what role exercise plays in preventing________(64)in men,but we do know that a healthy lifestyle can prevent up to half of all cancers—and_______(65)exercise forms a key part of this."_________(51)A:didn'tB:don'tC:won'tD:can't

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考题共用题干第三篇 Joyce Sipes and Mary Ellen DodgeWhen Joyce Sipes was diagnosed with breast cancer in 1999,she shared the news immediately with her sister Mary Ellen Dodge.Mary Ellen was there for her-helDina her through the terror,and the fear,and the thousand questions that are inevitably a Dart of hearing the word"cancer".Fortunately,a friend at work who had had a similar diagnosis highly recommended Alonzo Walker,MD,Medical College of Wisconsin suraical oncoloaist（外科肿瘤学家） and director of the Froedtertshe cancelled her appointment to get a secondopinion elsewhere.Ultimately, Joyce's cancer required a mastectomy（乳房切除术）.Reconstructive surgery took place right away.She came to think of Dr. Walker as her partner."not just my doctor."And the Froedtert nurses,she says,were"very unusual and impressive".As it turned out,Joyce would soon have the chance to do something important for her sister Mary Ellen.During her own cancer treatment,Joyce suqqested that Mary Ellen should get herself checked through the Froedtert&Medical College of Wisconsin Breast Cancer Program.In addition to its opportunities for examination and screenina.the hospital had established a program especially for women in families at high risk for cancer. Sure enough , it turned out that Mary Ellen had some cysts（囊肿）,one of which was dangerous enough that it needed to be surgically removed.She's fine now一thanks to Joyce's suggestion.Both sisters experienced firsthand how Froedtert & Medical College of Wisconsin offers more than leading-edge technology and the unmatched experience of physicians in an academic medical center. It offers a comprehensive team approach一of consultation,collaboration,and care一all focused on the individual patient.That's why Joyce came to think of Froedtert,throughout the orocess of her treatment,as being her "security blanket".Joyce Sipes has been cancer-free five years now一an important milestone（里程碑） tor breast cancer survivors.Joyce and Mary Ellen are together once aciain in their workshop in Joyce's home , making the beautiful market baskets , bread baskets , muffin（松饼） baskets,and Nantucket baskets that they and their customers love. Thanks to Joyce's suggestion,Mary Ellen gotA:an opportunity to work as a nurse.B: the same surgical procedure as her sister.C: a timely check and treatment for breast cancer.D:a chance to work for the Breast Cancer Program.

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考题共用题干第三篇 Joyce Sipes and Mary Ellen DodgeWhen Joyce Sipes was diagnosed with breast cancer in 1999,she shared the news immediately with her sister Mary Ellen Dodge.Mary Ellen was there for her-helDina her through the terror,and the fear,and the thousand questions that are inevitably a Dart of hearing the word"cancer".Fortunately,a friend at work who had had a similar diagnosis highly recommended Alonzo Walker,MD,Medical College of Wisconsin suraical oncoloaist（外科肿瘤学家） and director of the Froedtertshe cancelled her appointment to get a secondopinion elsewhere.Ultimately, Joyce's cancer required a mastectomy（乳房切除术）.Reconstructive surgery took place right away.She came to think of Dr. Walker as her partner."not just my doctor."And the Froedtert nurses,she says,were"very unusual and impressive".As it turned out,Joyce would soon have the chance to do something important for her sister Mary Ellen.During her own cancer treatment,Joyce suqqested that Mary Ellen should get herself checked through the Froedtert&Medical College of Wisconsin Breast Cancer Program.In addition to its opportunities for examination and screenina.the hospital had established a program especially for women in families at high risk for cancer. Sure enough , it turned out that Mary Ellen had some cysts（囊肿）,one of which was dangerous enough that it needed to be surgically removed.She's fine now一thanks to Joyce's suggestion.Both sisters experienced firsthand how Froedtert & Medical College of Wisconsin offers more than leading-edge technology and the unmatched experience of physicians in an academic medical center. It offers a comprehensive team approach一of consultation,collaboration,and care一all focused on the individual patient.That's why Joyce came to think of Froedtert,throughout the orocess of her treatment,as being her "security blanket".Joyce Sipes has been cancer-free five years now一an important milestone（里程碑） tor breast cancer survivors.Joyce and Mary Ellen are together once aciain in their workshop in Joyce's home , making the beautiful market baskets , bread baskets , muffin（松饼） baskets,and Nantucket baskets that they and their customers love. What did Mary Ellen do for her cancer-stricken sister?A: She recommended Dr. Walker.B:She kept her from being disturbed.C: She asked her a lot of questions.D: She comforted her as much as she could.

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考题共用题干第三篇 Joyce Sipes and Mary Ellen DodgeWhen Joyce Sipes was diagnosed with breast cancer in 1999,she shared the news immediately with her sister Mary Ellen Dodge.Mary Ellen was there for her-helDina her through the terror,and the fear,and the thousand questions that are inevitably a Dart of hearing the word"cancer".Fortunately,a friend at work who had had a similar diagnosis highly recommended Alonzo Walker,MD,Medical College of Wisconsin suraical oncoloaist（外科肿瘤学家） and director of the Froedtertshe cancelled her appointment to get a secondopinion elsewhere.Ultimately, Joyce's cancer required a mastectomy（乳房切除术）.Reconstructive surgery took place right away.She came to think of Dr. Walker as her partner."not just my doctor."And the Froedtert nurses,she says,were"very unusual and impressive".As it turned out,Joyce would soon have the chance to do something important for her sister Mary Ellen.During her own cancer treatment,Joyce suqqested that Mary Ellen should get herself checked through the Froedtert&Medical College of Wisconsin Breast Cancer Program.In addition to its opportunities for examination and screenina.the hospital had established a program especially for women in families at high risk for cancer. Sure enough , it turned out that Mary Ellen had some cysts（囊肿）,one of which was dangerous enough that it needed to be surgically removed.She's fine now一thanks to Joyce's suggestion.Both sisters experienced firsthand how Froedtert & Medical College of Wisconsin offers more than leading-edge technology and the unmatched experience of physicians in an academic medical center. It offers a comprehensive team approach一of consultation,collaboration,and care一all focused on the individual patient.That's why Joyce came to think of Froedtert,throughout the orocess of her treatment,as being her "security blanket".Joyce Sipes has been cancer-free five years now一an important milestone（里程碑） tor breast cancer survivors.Joyce and Mary Ellen are together once aciain in their workshop in Joyce's home , making the beautiful market baskets , bread baskets , muffin（松饼） baskets,and Nantucket baskets that they and their customers love.Which is NOT true of Froedtert & Medical College of Wisconsin?A: It does not care much about the individual patient.B:It offers more than leading-edge technology.C:Its physicians have unique experience.D:It adopts a comprehensive team approach.

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考题共用题干第二篇 Brain-dead Mother Dies after Giving BirthA brain-dead woman who was kept alive for three months so she could deliver the child she was carrying was removed from life support on Wednesday and died,a day after giving birth."This is obviously a bittersweet time for our family,"Justin Torres,the woman's brother-in-law,said in a statement.Susan Torres,a cancer-stricken,26-year-old researcher at the National Institutes of Health,suffered a stroke in May after the melanoma（黑瘤）spread to her brain.Her family decided to keep her alive to give her foetus（胎儿）a chance. It became a race between the foetus' development and the cancer that was destroying the woman's body.Doctors said that Torres' health was getting worse and that the risk of harm to the foetus finally outweighed the benefits of extending the pregnancy.Torres gave birth to a daughter by Caesarean section（剖腹产手术）on Tuesday at Virginia Hospital Center.The baby was two months premature and weighed about a kilogram.She was in the newborn intensive care unit.Dr. Donna Tilden-Archer , the hospital's director of neonatology（新生儿学）,described the child as"very vigorous".She said the baby had responded when she received stimulation,indicating she was healthy.Doctors removed Torres from life support early Wednesday with the consent of her husband , Jason Torres , after she received the final sacrament（圣礼）of the Roman Catholic Church."We thank all of those who prayed and provided support for Susan,the baby and our family,"Jason Torres said in a statement."We especially thank God for giving us little Susan.My wife's courage will never be forgotten."English-language medical}iterature contains at least 11 cases since 1 979 of irreversibly brain-damaged women whose lives were prolonged for the benefit of the developing foetus,according to the University of Connecticut Health Center.Dr.Christopher McManus,who coordinated care for Susan Torres,put the infant's chances of developing cancer at less than 25 per cent.He said 19 women who have had the same aggressive form of melanoma as Torres have given birth,and five of their babies became ill with the disease. Susan Torres died soon afterA:she suffered a stroke. B: she became brain-dead.C: she was diagnosed with cancer. D:she gave birth to a baby.

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考题共用题干 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

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考题共用题干第二篇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（膀胱）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 Arnersham Hospital in England.They trained different kinds of dogs for the experiment.The study involved urine collected from biadder cancer patients,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 tested healthy 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 studyA:dropped out. B:passed away.C:was found to have cancer. D:was found to remain healthy.

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考题共用题干 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 experiment was conducted in a_______.A: police stationB: hospitalC: training schoolD:.private home

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考题共用题干 Food and CancerMedical experts have suspected for many years that there is a strong link between what a person eats and cancer. They say a new study provides the first evidence that vitamins could reduce a person's chance of developing cancer. A team of Chinese and American scientists did the study.They are from American National Cancer Institute and the Cancer Institute of the Chinese Academy of Medical Sciences in Beijing. The Journal of the National Cancer Institute published the results of the study. About thirty thousand people between the ages of 40 to 69 took part in the study.They were from the northern central Chinese area of Linxian.Most of them took vitamins and minerals everyday for five years.Linxian was chosen because the people there have an extremely high rate of cancer of stomach and esophagus.Researchers believe that fungus and molds in local foods may be partly responsible for the high cancer rate.Researchers divided those people into eight groups.Seven of the groups received different mixtures of vitamins and minerals daily.The amounts of the vitamins and minerals were 1 to 2 times greater than what American health officials say is needed.The eighth group received sugar pills that had no effect.Those who seemed to gain the most received a mixture of a form of vitamin A called β-carotene,vitamin E and the mineral selenium（硒）.The vitamin and mineral are believed to prevent damage to cells caused by cancer-causing substances.Researchers reported a 1 3 percent drop in cancer rates in those who took β-carotene,vitamin E and selenium.They also found a 10 percent drop in the number of deaths caused by strokes from bursting blood vessels.Scientists warn that it is too soon to know if the effect would be the same among people in other countries.They note that the people in Linxian eat foods that lack necessary vitamins and minerals.Chinese officials will continue to record the health records of the people in Linxian for many years.For now officials reportedly are considering using the results of the study.They want to find a way to improve the health of people in Linxian and other small towns in China. The rate of cancer of stomach and esophagus in Linxian is the highest in China.A:RightB:WrongC:Not mentioned

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考题共用题干 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. Participants in the experiment were______.A: 36 bladder cancer patientsB: 144 cancer patientsC: 108 healthy peopleD:.144 sick and healthy people

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考题共用题干 Food and CancerMedical experts have suspected for many years that there is a strong link between what a person eats and cancer. They say a new study provides the first evidence that vitamins could reduce a person's chance of developing cancer. A team of Chinese and American scientists did the study.They are from American National Cancer Institute and the Cancer Institute of the Chinese Academy of Medical Sciences in Beijing. The Journal of the National Cancer Institute published the results of the study. About thirty thousand people between the ages of 40 to 69 took part in the study.They were from the northern central Chinese area of Linxian.Most of them took vitamins and minerals everyday for five years.Linxian was chosen because the people there have an extremely high rate of cancer of stomach and esophagus.Researchers believe that fungus and molds in local foods may be partly responsible for the high cancer rate.Researchers divided those people into eight groups.Seven of the groups received different mixtures of vitamins and minerals daily.The amounts of the vitamins and minerals were 1 to 2 times greater than what American health officials say is needed.The eighth group received sugar pills that had no effect.Those who seemed to gain the most received a mixture of a form of vitamin A called β-carotene,vitamin E and the mineral selenium（硒）.The vitamin and mineral are believed to prevent damage to cells caused by cancer-causing substances.Researchers reported a 1 3 percent drop in cancer rates in those who took β-carotene,vitamin E and selenium.They also found a 10 percent drop in the number of deaths caused by strokes from bursting blood vessels.Scientists warn that it is too soon to know if the effect would be the same among people in other countries.They note that the people in Linxian eat foods that lack necessary vitamins and minerals.Chinese officials will continue to record the health records of the people in Linxian for many years.For now officials reportedly are considering using the results of the study.They want to find a way to improve the health of people in Linxian and other small towns in China.The results of the study are of great significance to people everywhere.A:RightB:WrongC:Not mentioned

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考题共用题干 Food and CancerMedical experts have suspected for many years that there is a strong link between what a person eats and cancer. They say a new study provides the first evidence that vitamins could reduce a person's chance of developing cancer. A team of Chinese and American scientists did the study.They are from American National Cancer Institute and the Cancer Institute of the Chinese Academy of Medical Sciences in Beijing. The Journal of the National Cancer Institute published the results of the study. About thirty thousand people between the ages of 40 to 69 took part in the study.They were from the northern central Chinese area of Linxian.Most of them took vitamins and minerals everyday for five years.Linxian was chosen because the people there have an extremely high rate of cancer of stomach and esophagus.Researchers believe that fungus and molds in local foods may be partly responsible for the high cancer rate.Researchers divided those people into eight groups.Seven of the groups received different mixtures of vitamins and minerals daily.The amounts of the vitamins and minerals were 1 to 2 times greater than what American health officials say is needed.The eighth group received sugar pills that had no effect.Those who seemed to gain the most received a mixture of a form of vitamin A called β-carotene,vitamin E and the mineral selenium（硒）.The vitamin and mineral are believed to prevent damage to cells caused by cancer-causing substances.Researchers reported a 1 3 percent drop in cancer rates in those who took β-carotene,vitamin E and selenium.They also found a 10 percent drop in the number of deaths caused by strokes from bursting blood vessels.Scientists warn that it is too soon to know if the effect would be the same among people in other countries.They note that the people in Linxian eat foods that lack necessary vitamins and minerals.Chinese officials will continue to record the health records of the people in Linxian for many years.For now officials reportedly are considering using the results of the study.They want to find a way to improve the health of people in Linxian and other small towns in China.All those people who took part in the study received vitamins and minerals.A:RightB:WrongC:Not mentioned

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考题共用题干 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 dog's average success rate was______.A: 26%B: 22%C: 41%D: 56%

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考题共用题干 Food and CancerMedical experts have suspected for many years that there is a strong link between what a person eats and cancer. They say a new study provides the first evidence that vitamins could reduce a person's chance of developing cancer. A team of Chinese and American scientists did the study.They are from American National Cancer Institute and the Cancer Institute of the Chinese Academy of Medical Sciences in Beijing. The Journal of the National Cancer Institute published the results of the study. About thirty thousand people between the ages of 40 to 69 took part in the study.They were from the northern central Chinese area of Linxian.Most of them took vitamins and minerals everyday for five years.Linxian was chosen because the people there have an extremely high rate of cancer of stomach and esophagus.Researchers believe that fungus and molds in local foods may be partly responsible for the high cancer rate.Researchers divided those people into eight groups.Seven of the groups received different mixtures of vitamins and minerals daily.The amounts of the vitamins and minerals were 1 to 2 times greater than what American health officials say is needed.The eighth group received sugar pills that had no effect.Those who seemed to gain the most received a mixture of a form of vitamin A called β-carotene,vitamin E and the mineral selenium（硒）.The vitamin and mineral are believed to prevent damage to cells caused by cancer-causing substances.Researchers reported a 1 3 percent drop in cancer rates in those who took β-carotene,vitamin E and selenium.They also found a 10 percent drop in the number of deaths caused by strokes from bursting blood vessels.Scientists warn that it is too soon to know if the effect would be the same among people in other countries.They note that the people in Linxian eat foods that lack necessary vitamins and minerals.Chinese officials will continue to record the health records of the people in Linxian for many years.For now officials reportedly are considering using the results of the study.They want to find a way to improve the health of people in Linxian and other small towns in China.Among the scientists that did the study,there are more Chinese than Americans.A:RightB:WrongC:Not mentioned

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考题 Before she began to study at Beijing University, she（）in a factory for five years.A、had workedB、workedC、has workedD、would work

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考题 She's part of a team of scientists who are（）upon cancer research.A、workedB、arrangedC、engagedD、involved

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考题单选题Andrews was one of the first executives to realize that employees are most productive when he or she feels to be part of a family.A he or she feels to be part of a familyB they feel as if they are part of a familyC he or she feels part of a familyD it’s more like a family for themE feeling a part of a family is made possible

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考题单选题The pSeries technical specialist has been invited to a briefing on the latest POWER technology as a representative of their team. What should the specialist offer to do upon return from class in order to best prepare the rest of the team for the introduction of the new technology？（）A Archive the materials in the team’s library.B Act as the sole technical resource for the team.C Summarize the information and make it available to the team.D Evaluate the class and recommend attendance to other team members.

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考题单选题—Mary, who’s ______ woman over there?—She’s my aunt, ______ English teacher.A the; theB a; theC the; anD a; an

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考题单选题According to the passage, which of the following is TRUE?A Freedman and his colleagues hired 400,000 Americans to collect data.B About four hundred thousand Americans worked for Freedman's team full time for 13 years.C People who took part in Freedman's research are about 50 to 70 years old.D People who are 50 to 70 years old seldom drink coffee

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考题单选题Which of the following situations best illus- trates the phenomenon described in the second paragraph of Passage 2 (lines 92-113)?A A fan brings a stuffed animal to a football game because he believes that it will help his team's performance.B A hockey team's best scorer flips a coin to decide which hockey stick he will use for that game.C A sportswriter blames a team loss on a baseball player who struck out to end a game.D A basketball team's best player feels more energized when she is on the court than when she is sitting on the bench.E A rugby player feels more nervous playing in a championship game than he does playing in a regular-season game.

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考题单选题She's part of a team of scientists who are（）upon cancer research.A workedB arrangedC engagedD involved

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