填空题Promoting healthy behavior is the goal of ______.

填空题A. milk, meat, vegetables, etc. were deliveredB. it has promoted the sales of many kinds of commoditiesC. foods can be preservedD. most kids like iced soft drinksE. every housewife needs foodF. the fridge produced when it is working

填空题A. in the development of air transportationB. the earliest passenger flights were successfully operatedC. to make travel easy and pleasant for the passengersD. to provide different services E the shortage of qualified pilotsF. travelling by air was very cheap

填空题 A. 10 percent to 25 percent for the proportion of workers who use drugs occasionally on the job B. determine exactly when simple drug use becomes abuse C. the 1920s until the 1960s D. the 1960s until the 1970s E. signals passing through the nervous system

填空题Electromagnetic Energy 1. White light seems to be a combination of all colors. The energy that comes from a source of light is not limited to the kind of energy you can see. Heat is given off by a flame or an electric light. On a cloudy day it is possible to get a sunburn even though you feel cool. Visible light and the kinds of energy that produce warmth and sunburn are examples of electromagnetic energy. 2. The sun is 93 million miles from the earth. Yet we can use energy from the sun because electromagnetic energy travels through space. 3. Many other kinds of energy are also types of electromagnetic energy. Radio, television, and radar signals travel from transmitters to receivers as low-energy electromagnetic waves. Infrared(红外线的)radiation is an electromagnetic wave. When it is absorbed by matter, heat is produced. Waves of infrared and visible light have more energy than waves of radio, television, or radar. Ultraviolet rays(紫外线)and X-rays are electromagnetic waves with even greater amounts of energy. Infrared radiation is used in cooking food and heating buildings. Sunlight and electric lights are part of our requirements for normal living. Ultraviolet radiation is useful in killing certain disease organisms. X-rays and gamma rays have so much energy that they travel right through solid objects. They can be used to detect and treat cancer. X-rays are used in industry to find hidden cracks in metal, and in medicine to reveal broken bones. 4. Usually we use electricity to generate electromagnetic energy. The source of most of our energy is the sun. Heat from the sun causes water to evaporate. When the water falls to the earth as rain, some of it is trapped behind dams and then used to operate electric generators. Other generators are powered by coal, but the energy stored in coal came from the sun, too. 5. Until recently, the source of the tremendous amount of energy given off by the sun was a puzzle. If the sun depended on chemical reactions, it would have used up all its energy long ago. Experiments with electromagnetic radiation led to the theory that mass can be converted into energy. About forty years after the theory was proposed, nuclear energy was harnessed(利用)by man. Chemical energy comes from electron(电子) rearrangement. Nuclear energy comes from a change in the nucleus of an atom. Compared with chemical reactions, nuclear reactions release millions of times more energy per pound of fuel. We now believe that the sun"s energy comes from the nuclear reactions in which hydrogen is changed into helium(氦). 6. Nuclear energy is beginning to compete with coal as an economical source of power to generate electricity. It is also being used to operate engines in large ships. Scientists continue to seek new and better methods of obtaining and using energy.

填空题The Story of Lani Five-year-old Lani still takes seven medicines with her breakfast every morning. "She"s very good about it," says her father David. Lani is alive today because of her father David, in more than one way; when she was one year old she received part of her father"s liver in a liver-transplant operation. Lani was born with a liver illness. 1 Doctors advised that a transplant was the only way in which she would live. The operation lasted 12 hours and needed tWO teams, one for the father and one for the daughter. 2 In these cases, the donor"s liver grows to normal size in about eight weeks, and the child"s liver becomes smaller. Lani spent three weeks in hospital after the operation, because the receiver"s body tries to reject the new organ, the patient has to be given special drugs. 3 Although David left hospital after 10 days, he didn"t return to work until after three months. In order to reach the liver, the doctors have to cut through the stomach wall, which is strong and full of muscle. It therefore takes a long time to recover after this operation. 4 So far, only 16 of these liver-transplant operations have been carried out in Britain. 5 Doctors say, "If possible, we prefer to take a liver from a dead donor, usually a parent." Lani still has to look after her health, and she gets more tired than other children of the same age, but doctors hope that she will continue to get stronger and stronger. A．She had one operation when she was six weeks old, which was not successful. B．While these drugs are given, it is important that the patient does not catch any illness, not even a cold. C．In this operation a piece of liver, weighing about 250～300 grams, was removed from the father and transplanted into the daughter. D．David quickly recovered from the operation. E．However, they are more common in North America and Japan. F．David was finally able to ride his bike again after about a year.

填空题下面的短文有5处空白，短文后有6个句子，其中5个取自短文，请根据短文内容将其分别放回原有位置，以恢复文章原貌。{{B}}ABadIdea{{/B}}Thinkyoucanwalk,drive,takephone,calls,e-mailandlistentomusicatthesametime?Well,NewYork'snewlawsaysyoucan't{{U}}(46){{/U}}Thelawwentintoforcelastmonth,followingresearchandashockingnumberofaccidentsthatinvolvedpeopleusingelectronicgadgets(小巧机械)whencrossingthestreet.Who'stoblame?{{U}}(47){{/U}}"Weareundertheimpressionthatourbraincandomorethanitoftencan,"saysReneMarois,aneuroscientist(神经科学家)inTennessee."Butacorelimitationistheinabilitytoconcentrateontwothingsatonce."Theyoungpeopleareoftenconsideredthegreatmultitaskers.{{U}}(48){{/U}}Agroupof18-to21-year-oldsandagroupof35-to39-year-oldsweregiven90secondstotranslateimagesintonumbers,usingasimplecode.{{U}}(49){{/U}}ButwhenbothgroupswereinterruptedbyaPhonecalloraninstantmessage,theoldergroupmatchedtheyoungergroupinspeedandaccuracy.Itisdifficulttomeasuretheproductivitylostbymultitaskers.Butitisprobablyalot.JonathanSpira,chiefanalystatBasex,abusiness-researchfirm,estimatesthecostofinterruptionstotheAmericaneconomyatnearly＄650billionayear.{{U}}(50){{/U}}Thesurveysconcludethat28percentoftheworkers'timewasspentoninterruptionsandrecoverytimebeforetheyreturnedtotheirmaintasks.A.Talkingonacellphonewhiledrivingbringsyoujoyanyway.B.Theestimateisbasedonsurveyswithofficeworkers.C.Theyoungergroupdid10percentbetterwhennotinterrupted.D.However,anOxfordUniversityresearchsuggeststhisperceptionisopentoquestion.E.Scientistssaythatourmultitasking(多任务处理)abilitiesarelimited.F.Andyou'llbefined$100ifyoudosoonaNewYorkcitystreet.

填空题下面的短文有5处空白，短文后有6个句子，其中5个取自短文，请根据短文内容将其分别放回原有位置，以恢复文章原貌。{{B}}CanadaIkea:WhataGreatPlaceforYoutoShop{{/B}}Therearemanydifferentstoresthatpeoplegotoinordertobuyvarioushouseholdgoods.{{U}}(46){{/U}}TheCanadaIkeaisnotconfinedtoonecityaloneinthatcountry.InsteadYouwillfindtherearemanydifferentbranchesspreadoutinmanydifferentlocalities.AswithalloftheIkeastorestheCanadaIkeadealsmainlywithsellingtopqualitySwedishfurniture.{{U}}(47){{/U}}Onefacet(方面)oftheCanadaIkeathatitscustomerswilllikeisthatthestorehastheabilityofcatering(迎合)totheirEnglishspeakingcustomersaswellastheirFrenchcustomers.TomakeshoppingforfurnitureandothergoodseasytheIkeastoresineverycountryareallsetoutinthesamemanner.{{U}}(48){{/U}}AsaresultofthistheCanadaIkeaisonethatitslocalandforeigncustomersenjoyvisiting.Tohelpmakeiteasyforyoutoshopfortheitemsthatyouwanttherearelargeblueandyellowbagsorshoppingcartsavailable.{{U}}(49){{/U}}Asyouwanderthroughthestoreyouwillfindmanyinterestingitemsthatyoucanuseforyourhomeorevenoffice.Withtheseproductsyouwillhaveabeautifulhousethatyoucanlivecomfortablyin.{{U}}(50){{/U}}TheCanadaIkeaisagreatplaceforyoutoshop.AThisfurnitureisdesignedtoprovidethehomeownerwithstylish(时髦的)furniturethatisalsoaffordableandperfectforeverydayuse.BWithsomanyitemstobefoundyouaresuretowanttobuyeverythingthatcatchesyourfancy.CThesebagsandcartsareperfectforthemanydifferentlampshades,cushions(垫子),bedlinens(亚麻布),toysandothermediumtosmallsizedobjectsthatyouwant.DThismakesitveryeasyforvisitorsfromothercountriestobuytheitemstheyneedwithoutwanderingaroundthestoretryingtofindtheirgoods.EOnesuchstorethatyoucanfindinmanydifferentcountriesincludingthatofCanadaisthatoftheIkea(宜家)chainofstores.FThelarger,sizedobjectsaredisplayedintheshowroomsoftheCanadaIkeasteres.

填空题How One Simple Movement Can Let Slip the Secrets of the Mind Body language is the quiet, secret and most powerful language of all! It is said that our body movements communicate about 50 per cent of what we really mean while words themselves only express 7 per cent. So, while your mouth is closed, just what is your body saying... Arms. (46) If you keep your arms to the sides of your body or behind your back, this suggests you are not afraid of taking on whatever comes your way. (47) If someone upsets you, just cross your arms to show you're unhappy! Head. When you want to appear confident, keep your head level. If you are monitor in class, you can also take on this position when you want your words to be taken seriously. (48) Legs. Your legs tend to move around a lot more than normal when you are nervous or telling lies. If you are at interviews, try to keep them still! Posture. A good posture makes you feel better about yourself. (49) This makes breathing more difficult, which in turn can make you feel nervous or uncomfortable. Mouth. When you are thinking, you often purse your lips. You might also use this position to hold back an angry comment you don't wish to show. (50) A If you are feeling downs, you normally don't sit straight, with your shoulders inwards.B If you are pleased, you usually open your eyes wide and people can notice this.C Outgoing people generally use their arms with big movements, while quieter people keep them close to their bodies.D How you hold your arms shows how open and receptive you are to people you-meet.E However, it will probably still be noticed, and people will know you're not pleased.F However, to be friendly in listening or speaking, you must move your head a little to one side.

填空题Priscilla Ouchida's "energy-efficient" house turned out to be a horrible dream. When she and her engineer husband married a few years ago, they built a ＄ 100 000 three-bedroom home in California. Tightly sealed to prevent air leaks, the house was equipped with small double-parted (双层玻璃的) windows and several other energy-saving features (46) . Priscilla's eyes burned. Her throat was constantly dry. She suffered from headaches and could hardly sleep. (47) . (48) . The level of formaldehyde(甲醛)gas in her kitchen was twice the maximum allowed by federal standards for chemical workers. The source of the gas? Her new kitchen cabinets and wall-to-wall carpeting. The Ouchidas are victims of indoor air pollution, which is not given sufficient attention partly because of the nation's drive to save energy. (49) . "The indoor environment was dirty long before energy conservation came along," says Moschandreas, a pollution scientist at Geomet Technologies in Maryland. "Energy conservation has tended to accentuate the situation in some cases." The problem appears to be more troublesome in newly constructed homes rather than old ones. Back in the days when energy was cheap, home builders didn't worry much about unsealed cracks. (50) . As a result, the pollutants generated in most households seldom built up to dangerous levels.A. The problem itself isn't new.B. Experts finally traced the cause of her illness.C. Problems began as soon as the couple moved in, however.D. They spent a lot of money on decorating the house.E. Because of such leaks, the air in an average home was replaced by fresh outdoor about once an hour.F. It was as tough she had suddenly developed a strange illness.

填空题 Lung Cancer The death rate due to cancer of the lungs has increased more than 800 percent in males and has more than doubled in females during the last 25 years. It is considerably higher in urban and industrial areas than in rural districts. {{U}} {{U}} 1 {{/U}} {{/U}}Those factors which have been mentioned most frequently are the presence of foreign particles and other irritants in the air (smoke particles, smog, exhaust fumes), and the smoking of cigarettes and cigars. {{U}} {{U}} 2 {{/U}} {{/U}}Among heavy smokers—21 to 30 cigarettes per day—the mortality rate from lung cancer is nearly 17 times the rate from nonsmokers. It is expected the death rate among women will increase as the present high rate of smoking among women has its effect. Sometimes cases of lung cancer are discovered at the time an X-ray is taken for the purpose of detecting tuberculosis. {{U}} {{U}} 3 {{/U}} {{/U}}Early detection is absolutely essential if any possibility of cure is to be maintained. Modern X-ray machines in competent hands pose such slight danger, at least to those over 40 years of age, that this would be much more than offset by the advantages of discovering a tumor while it is small enough to be completely removed. {{U}} {{U}} 4 {{/U}} {{/U}}The tumor may grow until the bronchus is blocked, cutting off the supply of air to that lung. The lung then collapses, and the secretions trapped in the lung spaces become infected, with a resulting pneumonia or the formation of a lung abscess. {{U}} {{U}} 5 {{/U}} {{/U}}The only treatment that offers a possibility of cure, before secondary growths have had time to form, is to remove the lung completely. This operation is called pneumonectomy. Malignant tumors of the stomach, the breast, the prostate gland and other organs may spread to the lungs, causing secondary growths. A. A common form of lung cancer is bronchogenic carcinoma, so-called because the malignancy originates in a bronchus. B. Lung cancer, also known as carcinoma of the lung or pulmonary carcinoma, is a malignant lung tumor characterized by uncontrolled cell growth in tissues of the lung. C. Too often, however, a current emphasis upon the danger of exposure to radiation from X-ray machines can frighten people away from routine chest X-rays and thus prevent an early diagnosis of lung cancer. D. Numerous studies have demonstrated a striking correlation between the death rate from lung cancer and smoking habits. E. Such a lung cancer can also spread to cause secondary growths in the lymph nodes of the chest and neck as well as in the brain and other parts of the body. F. There are many possible causes, but it is still controversial which are most blameworthy.

填空题Traffic accidents fell greatly in Maryland after they introduced ______.

填空题1. Too Dangerous for College On Tuesday, the Associated Press reported that beer maker Anheuser - Busch has scaled back a promotion called "Fan Cans" in which the company targeted college students by painting cans of Bud Light in school colors. (46) In response, the company agreed to stop selling the special - edition cans where colleges objected. A number of colleges had complained about the campaign, on the grounds that, among other things, it sends the wrong message about drinking. " We think it' s an ill -conceived and inappropriate campaign that runs counter to our collective efforts to combat underage drinking," a spokesman for Boston College told the Associated Press. On its face, restricting the ability of beer makers to target college students directly seems like a fine idea. After all, the logic seems to go, these people are old enough to be away from home, but not quite old enough to make responsible decisions. (47) If we' re going to treat college kids like kids, then beer isn' t the only product that ought to have its marketing wings clipped by those who know what' s best. Actually there is a list of products that get marketed to college students every day all across the country, such as cigarettes. Last year, the American Lung Association reported that after 1998, when the tobacco industry signed an agreement with 46 states that restricted tobacco advertising, the industry began targeting college students by spending more money on promotions in bars and nightclubs where those students spend time. (48) Moreover, those promotions seem to work. (49) Should society be concerned about Big Tobacco targeting college kids? You bet: according to the ALA, fully half of occasional college smokers were still smoking four years later. Smoking is arguably as dangerous to students' well - being as alcohol. (50) If we' re going to be paternalistic (家长式作风的), let's at least be consistent.A. But if college students aren't quick -wined (机敏的) enough to see past colored beer eans, can we really trust them to navigate the slick (狡猾的) marketing campaigns of other dangerous products?B. Yet all of them are marketed at college students.C. Anheuser - Busch got a push from the Federal Trade Commission, which was "concerned that cans will be marketed to fans under the legal age of 21."D. It is more dangerous for college students nowadays than previous years.E. According to a 2004 paper by researchers at Harvard, students who were exposed to those promotions were more likely to smoke than those who didn't.F. In a 2000-01 survey, students at 115 of the 119 schools studied said they saw tobacco promotions at a bar or nightclu

填空题A. put forward the idea of founding the Open UniversityB. than it could admitC. learn through correspondenceD. offer foundation courses in technologyE. charge students a low tuition feeF. be awarded Master's or Pit. D Degrees

填空题Many Benefits from Cancer Organization Do you know a child who survived leukemia? Do you have a mother, sister or aunt whose breast cancer was found early thanks to a mammogram? Do you have a friend or coworker who quit smoking to reduce their risk of lung cancer? Each of these individuals benefited from the American Cancer Society"s research program. Each day scientists supported by the American Cancer Society work to find breakthroughs that will take US one step closer to a cure. The American Cancer Society has long recognized that research holds the ultimate answers to the prevention, diagnosis and treatment of cancer. As the largest source of nonprofit cancer research funds in the United States, the American Cancer Society devotes over $100 million each year to research. Since 1946, they"ve invested more than $2.4 billion in research. The investment has paid rich dividends. In 1946, only one in four cancer patients was alive five years after diagnosis; today 60 percent live longer than five years. Investigators and health professionals in universities, research institutes and hospitals throughout the country receive grants from the American Cancer Society. Of the more than 1,300 new applications received each year, only 11 percent can be funded. If the American Cancer Society had more money available for research funding, nearly 200 more applications considered outstanding could be funded each year. You can help fund more of these applications by participating in the American Cancer Society, Relay for Life, a team event to fight cancer. More funding means more cancer breakthroughs and more lives being saved. To learn more, call Donna Hood, chair with the Neosho Relay for Life of the American Cancer Society at 4514880.

填空题 Looking to the Future When a magazine for high-school students asked its readers what life would be like in twenty years, they said. Machines would be run by solar power. Buildings would rotate so they could follow the sun to take maximum advantage of its light and heat. Walls would "radiate light" and "change color with the push of a button." Food would be replaced by pills. {{U}} {{U}} 1 {{/U}} {{/U}}Cars would have radar. Does this sound like the year 2020? {{U}} {{U}} 2 {{/U}} {{/U}} The future is much too important to simply guess about the way the high school students did, so experts are regularly asked to predict accurately. {{U}} {{U}} 3 {{/U}} {{/U}}But can they? One expert on cities wrote= cities of the future would not be crowded, but would have space for farms and fields. People would travel to work in "airbuses", large all-weather helicopters carrying up to 200 passengers. When a person left the airbus station he could drive a coin-operated car equipped with radar. The radar equipment of cars would make traffic accidents "almost unheard of". Does that sound familiar? If the expert had been accurate it would, because he was writing in 1957. His subject was "The city of 1982". If the professionals sometimes sound like high-school students, it's probably because future study is still a new field. But economic forecasting, or predicting what the economy will do, has been around for a long time. It should be accurate, and generally it is. But there have been some big mistakes in this field, too. {{U}} {{U}} 4 {{/U}} {{/U}}In October of that year, the stock market had its worst losses ever, ruining thousands of investors who had put their faith in financial foreseers. {{U}} {{U}} 5 {{/U}} {{/U}}In 1957, H.J. Rand of the Rad Corporation was asked about the year 2000. "Only one thing is certain, " he answered. "Children will have reached the age of 43. " A. By carefully studying the present, skilled businessmen scientists and politicians are supposedly able to figure out in advance what will happen. B. School would be taught "by electrical impulse while we sleep". C. One forecaster knew that predictions about the future would always be subject to significant errors. D. In early 1929, most forecasters saw an excellent future for the stock market. E. Everyone may look to the future for it is always promising. F. Actually, the article was written in 1958 and the question was, "What will life be like in 19787"

填空题What Is Insulin-dependent Diabetes? When you eat, your body takes the sugar from food and turns it into fuel. (1) Your body uses glucose for energy, so it can do everything from breathing air to playing a video game. But glucose can't be used by the body on its own — it needs a hormone called insulin to bring it into the cells of the body. Most people get the insulin they need from the pancreas, a large organ near the stomach. The pancreas makes insulin; insulin brings glucose into the cells; and the body gets the energy it needs. When a person has insulin-dependent diabetes, it's because the pancreas is not making insulin. So someone could be eating lots of food and getting all the glucose he needs, but without insulin, there is no way for the body to use the glucose for energy. (2) You may have heard older people talk about having diabetes, maybe people of your grandparents' age. Usually, this is a different kind of diabetes called non-insulin-dependent diabetes. It can also be called Type 2 diabetes, or adult-onset diabetes. (3) When a kid is diagnosed with juvenile (insulin-dependent) diabetes, he will have that type of diabetes for his whole life. It won't ever change to non-insulin-dependent diabetes when he gets older. Scientists now think that a person who has juvenile diabetes was born with a certain gene or genes that made the person more likely to get the illness. (4) Many scientists believe that along with having certain genes, something else outside the person's body, like a viral infection, is necessary to set the diabetes in motion by affecting the cells in the pancreas that make insulin. But the person must have the gene (or genes) for diabetes to start out with — this means you can't get diabetes just from catching a flu, virus, or cold. And this type of diabetes isn't caused by eating too many sugary foods, either. Diabetes can take a long time to develop in a person's body — sometimes months or years. Another important thing to remember is that diabetes is not contagious. (5) A. Genes are something that you inherit from your parents, and they are in your body even before you're born. B. This sugar-fuel is called glucose. C. It may be possible to beat insulin resistance through lifestyle changes. D. You can't catch diabetes from people who have it, no matter how close you sit to them or if you kiss them. E. The glucose can't get into the cells of the body without insulin. F. When a person has this kind of diabetes, the pancreas usually can still make insulin, but the person's body needs more than the pancreas can make.

填空题 Stanford University 1. Stanford University is sometimes called "the Harvard of the West". The closeness of Stanford to San Francisco, a city thirty-two miles to the north, gives the university a decidedly cosmopolitan (世界性的) flavor. 2. The students are enrolled mainly from the western United States. But most of the fifty states send students to Stanford, and many foreign student study here, as well. And standards for admission remain high. Young men and women are selected to enter the university from the upper fifteen percent of their high school classes. 3. Not only because of the high caliber (素质) of its students but also because of the desirable location and climate, Stanford has attracted to its faculty some of the world's most respected scholars. The university staff has included many Nobel Prize winners in various fields. Stanford's undergraduate school of engineering and its graduate schools of business law, and medicine are especially well-regarded. 4. What is student life like on "The Farm"? Culturally, the campus is a magnet for both students and citizens of nearby communities. Plays, concerts, and operas are performed in the university's several auditoriums and in its outdoor theater, where graduations are also held. Several film series are presented during the school year. Guest lecturers from public and academic life frequently appear on campus. For the sports-minded, the Stanford campus offers highly developed athletic facilities. Team sports, swimming, and track and field activity are all very much part of the Stanford picture. So are bicycling and jogging. 5. In addition to financial support from alumni (校友), Stanford receives grants from the government and from private charities. In recent years, government grants have made. Possible advanced studies in the fields of history, psychology, education, and atomic energy. At present Stanford is carrying out all ambitious building program, financed in part by the Ford Foundation's 25 million grant. Recently added to the campus ale a new physics building. New school of business, new graduate school of law, new student union, and undergraduate library.

填空题A．develop new talentsB．learn organized courses voluntarilyC．great economic and social changesD．continued learningE．by self-studyF．in the 18th and 19th centuries

填空题 Mind Those Manners on the Subway So, there you are, just sitting there in the subway car, enjoying that book you just bought. {{U}} {{U}} 1 {{/U}} {{/U}}Or, the person sitting next to you takes out a nail clipper (指甲刀) and begins cutting his or her nails. Annoying? Many of us have to spend some time every day on public transportation. {{U}} {{U}} 2 {{/U}} {{/U}}So, to make the trip more pleasant, we suggest the following. Let passengers get off the bus or subway car before you can get on. {{U}} {{U}} 3 {{/U}} {{/U}} Stand away from the doors when they are closing. Don't talk loudly on a bus or subway. Chatting loudly with your friends can be annoying to others. {{U}} {{U}} 4 {{/U}} {{/U}} Don't think your bags and suitcases (手提箱) deserve a seat of their own. Use a tissue whenever you cough or sneeze (打喷嚏). An uncovered sneeze can spread germs (细菌) ,especially in crowded places. Don't cut your nails or pick your nose on public transportation. Don't read over other people's shoulder. {{U}} {{U}} 5 {{/U}} {{/U}}It can make people uncomfortable. They might think you're too stingy (小气的) even to buy a newspaper. Or they might think you're judging their behavior. A. Don't eat food in your car. B. Don't shout into your mobile phone on a bus or subway. C. We all know that some behaviors are simply unacceptable. D. Many people do this on subways, but it's really annoying. E. Getting off and on in an orderly manner can save time for all. F. Suddenly, you feel someone leaning over your shoulder reading along with you.