单选题We tried to restrict our conversation to arguments relevant to the topic.

单选题We must abide by the rules.

单选题{{B}}第三篇{{/B}} {{B}}Need for Emphasis on Treatment{{/B}} AIDS programs in developing countries put too little emphasis on treatment, the World Health Organization said Tuesday, asking for more small community-based clinics to be opened to treat HIV-infected people. An estimated 36 million to 46 million people are living with AIDS, two-thirds of them in Africa, but only 440,000 people in developing countries were receiving treatment by the end of 2003, the UN health agency said in its annual report. "Without treatment, all of them will die a premature and in most cases painful death," the WHO said in the 169-page World Health Report. WHO Director General Lee Jong-wook said community-based treatment should be added to disease prevention and care for sufferers in AIDS programs. "Future generations will judge our time in large part by our response to the AIDS disease," Lee said. "By tackling it decisively we will also be building health systems that can meet the health needs of today and tomorrow. This is a historic opportunity we cannot afford to miss," he added. Antiretroviral drugs enable people hit by AIDS to live longer. The annual cost of treatment, which was about $10,007 when the drugs were first developed, has dropped to about $150. Treatment programs also help AIDS prevention efforts, the report said, citing great demands for testing and counseling where treatment has been made available. Good counseling in turn leads to more effective prevention in those who are uninfected, and significantly reduces the potential for HIV carriers to pass on the infection, the report said. Since its discovery in the 1980s, more than 20 million have died of AIDS, mostly in poor countries.

单选题Computer mouse The basic computer mouse is an amazingly clever invention with a relatively simple design that allows us to point at things on the computer and it is very productive. Think of all the things you can do with a mouse like selecting text for copying and pasting, drawing, and even scrolling on the page with the newer mice with the wheel. Most of us use the computer mouse daily without stopping to think how it works until it gets dirty and we have to learn how to clean it. We learn to point at thing before we learn to speak, so the mouse is a very natural pointing device. Other computer pointing devices include light pens, graphics tablets and touch screen, but the mouse still our workhorse. The computer mouse was invented in 1964 by Douglas Englehart of Stanford University. As computer screens became popular and arrow keys were used to more around a body of text, it became clear that a pointing device that allowed easier motion through the text and even selection of text would be very useful. The introduction of the mouse, with the Apple Lisa computer in 1983, really started the computer public on the road to relying on the mouse for routine computer tasks. How does the mouse work? We have to start at the bottom, so think upside down for now. It all starts with mouse ball. As the mouse ball in the bottom of the mouse rolls over the mouse pad, it presses against and turns two shafts. The shafts are connected to wheels with several small holes in them. The wheels have a pair of small electronic light-emitting devices called light emitting diodes (LED) mounted on either side. One LED sends a light beam to the LED on the other side. As the wheels spin and a hole rotates by, the light beam gets through to the LED on the other side. But a moment later the light beam is blocked until the next hole is in place. The LED detects a changing pattern of light, converts the pattern into an electronic signal, and sends the signal to the computer through wires in a cable that goes out the mouse body. This cable is the tail that helps give the mouse its name. The computer interprets the signal to tell it where to position the cursor on the computer screen. So far we have only discussed the basic computer mouse that most of you probably have or have used. One problem with this design is that the mouse gets dirty as the ball rolls over the surface and picks up the dirt. Eventually you have to clean your mouse. The newer optical mice avoid this problem by having no moving parts.

单选题Is the News Believable? Unless you have gone through the experience yourself, or watched a loved one's struggle, you really have no idea just how desperate cancer can make you. You pray, you rage, you bargain with God, but most of all you clutch at any hope, no matter how remote, of a second chance at life. For a few excited days last week, however, it seemed as if the whole world was a cancer patient and that all humankind had been granted a reprieve (痛苦减轻). Triggered by a front-page medical news story in the usually reserved New York Times, all anybody was talking about — on the radio, on television, on the Internet, in phone calls to friends and relatives — was the report that a combination of two new drugs could, as the Times put it, "cure cancer in two years." In a matter of hours patients had jammed their doctors' phone lines begging for a chance to test the miracle cancer cure. Cancer scientists raced to the phones to make sure everyone knew about their research too, generating a new round of headlines. The time certainly seemed ripe for a breakthrough in cancer. Only last month scientists at the National Cancer Institute announced that they were halting a clinical trial of a drug called tamoxifen (他莫昔芬) — and offering it to patients getting the placebo (安慰剂) — because it had proved so effective at preventing breast cancer (although it also seemed to increase the risk of uterine (子宫的) cancer). Two weeks later came the New York Times' report that two new drugs can shrink tumors of every variety without any side effects whatsoever. It all seemed too good to be true, and of course it was. There are no miracle cancer drugs, at least not yet. At this stage all the drug manufacturer can offer is some very interesting molecules, and the only cancers they have cured so far have been in mice. BY the middle of last week, even the TV talk-show hosts who talked most about the news had learned what every scientist already knew: that curing a disease in lab animals is not the same as doing it in humans. "The history of cancer research has been a history of curing cancer in the mouse," Dr. Richard Klausner, head of the National Cancer Institute, told the Los Angeles Times. "We have cured mice of cancer for decades — and it simply didn't work in people./

单选题The full economy {{U}}round-trip{{/U}} is ＄ 273.

单选题This is not typical of English, but is a feature of the Chinese language.

单选题Could you please tell me your standards when selecting a candidate? A. opinions B. criterion C. criteria D. understanding

单选题People from many countries were Udrawn/U to the United States by the growing cities and industries.

单选题Scientists Develop Ways of Detecting Heart Attack German researchers have (1) a new generation of defibrillators and early-warning software aimed at offering heart patients greater protection (2) sudden death from cardiac arrest. In Germany alone around 100,000 people die annually as a result of cardiac arrest and many of these cases (3) by disruption to the heart's rhythm. Those most at risk are patients who have (4) suffered a heart attack, and for years the use of defibrillators has proved useful in diagnosing (5) disruptions to heart rhythms and correcting them automatically by intervening within seconds. These devices (6) a range of functions, such as that of pacemaker. Heart specialists at Freiburg's University Clinic have now achieved a breakthrough with an implanted defibrillator (7) of generating a six-channel electrocardiogram (ECG) within the body. This integrated system allows early diagnosis of (8) blood-flow problems and a pending heart attack. It will be implanted in patients for the first time this year. Meanwhile, researchers at the Fraunhofer Institute for Applied Mathematics in Kaiserslautem have developed new computer software that renders the evaluation of ECG data (9) . The overwhelming (10) of patients at risk will not have an implanted defibrillator and must for this reason undergo regular ECGs. "Many of the current programs only (11) into account a linear correlation of the data. We are, however, making use (12) a non-linear process that reveals the chaotic patterns of heart beats as an open and complex system, " Hagen Knaf says, " (13) changes in the heart beats over time can be monitored and individual variations in patients taken into account. " An old study of ECG data, based (14) 600 patients who had suffered a subsequent heart attack, enabled the researchers to compare risks and to show (15) the new software evaluates the data considerably better.

单选题A Health Profile A health profile is a portrait of all of the factors that influence your health. To draw your health profile, you will 1 what diseases run in your family, what health hazards you may be exposed to 2 work, how your daily 3 compares to the recommended standards, how much time per week you 4 exercising and what type of exercise you engage 5 , how stressful your work and family environments are, what kinds of illnesses you get regularly, and 6 or not you have any one of a number of addictions. 7 this portrait, you should have a checkup to determine how your blood, heart, and lungs are functioning. This checkup will serve 8 a baseline, to which you can then compare later tests. 9 this profile is thoroughly drawn, you can begin to think about setting health priorities based 10 your particular portrait. For example, if you drink two martinis every evening, have a high-stress 11 , are overweight, smoke a pack of cigarettes a day, and use marijuana occasionally on weekends, you should quit smoking first, followed 12 losing the excess weight, reducing the stress of your job, giving up your marihuana habit, and then finally giving some 13 to those martinis if you want to prevent first cancer, and then heart disease. Even for the youthful working person who has never been sick a day in his life, who is 14 excellent health, a good look at all health habits and at work and home environments may suggest changes that will 15 him in the future.

单选题We were all there when the accident Uoccurred/U.

单选题{{B}}第三篇{{/B}} Life at Aichi University I'm Yamamoto Mika, a 22-Year-old Japanese girl. I'd like to invite you to Aichi University so you can understand my life. Our university has a close relationship with China and my department is the only one of its kind in Japan. My courses include the Chinese language, modern Chinese politics and economics. I love the Chinese culture and I have been to Tianjin as an exchange students. In Japan, our courses are divided into compulsory(必修的), optional (选修的) and specialized(专修的) courses. However, we have a flexible schedule. We can choose classes from a wide range of options. Many students finish the compulsory courses in three years so that they can have one year with out any classes. They often use this period of time to study abroad, conduct research and travel. Many students even suspend their study for additional study-abroad opportunities. Japanese universities encourage students to choose their own ways of study, so it is quite easy for us to apply for study suspension. Japanese students participate in various kinds of extracurricular (课外的) activities. They at tend clubs from elementary schools, so many have already been accustomed to clubs when they enter university. Our university now has 42 art clubs and 45 sports clubs. The annual University Festival is the grandest carnival (狂欢节) of Japanese universities. In the festival, students promote their clubs and organize various activities. Our university's festival attracted about 150,000 people last year. I really like this festival. In school, I participate in the journalism club. When we have the club promotion, we cook "tonnjiru", a kind of pork soup, and sell it to other students at the fair. We also go to different places to interview celebrities (名人) who attend our festival as guests. It is a wonderful experience to talk to those stars face to face. Japanese students like to hold parties. We have two kinds of parties. One is the Mochiyori party. If you want to attend this party you have to cook a course and take it to the party. The organizer buys drinks and snacks. Another kind of party is the Nomikai, which mainly involves alcohol. We drink something called chu-hai, which is a combination of soda and wine. We also drink Japanese sake (清酒) and beer. There are parties for many occasions, like welcoming new students, graduation, celebrating victories, birthday parties or just for promoting friendship.

单选题Her novel depicts a futuristic America.A. writesB. sketchesC. describesD. indicates

单选题A Health Profile A health profile is a portrait of all of the factors that influence your health. To draw your health profile, you will (51) what diseases run in your family, what health hazards you may be exposed to (52) work, how your daily (53) compares to the recommended standards, how much time per week you (54) exercising and what type of exercise you engage (55) , how stressful your work and family environments are, what kinds of illnesses you get regularly, and (56) or not you have any one of a number of addictions. (57) this portrait, you should have a checkup to determine how your blood, heart, and lungs are functioning. This checkup will serve (58) a baseline, to which you can then compare later tests. (59) this profile is thoroughly drawn, you can begin to think about setting health priorities based (60) your particular portrait. For example, if you drink two martinis every evening, have a high-stress (61) , are overweight, smoke a pack of cigarettes a day, and use marijuana occasionally on weekends, you should quit smoking first, followed (62) losing the excess weight, reducing the stress of your job. giving up your marihuana habit, and then finally giving some (63) to those martinis if you want to prevent first cancer, and then heart disease. Even for the youthful working person who has never been sick a day in his life, who is (64) excellent health, a good look at all health habits and at work and home environments may suggest changes that will (65) him in the future.

单选题In the aspect of health behavior, the concept of personal choice is very important. According to estimation, around 90 percent of all illnesses may be preventable if individuals would make sound personal health choices on a basis of current medical knowledge. We all enjoy our freedom of choice and do like restrictions when it is in the scope of legal and moral boundaries. The structure of American society allows us to make almost all our own personal decisions that may relate to our health. If we are very eager, we can smoke, drink excessively, refuse to wear seat belts, eat as we like, and live a completely sedentary life--style without any exercise. The freedom of making such personal decisions is a fundamental aspect of our society, although the wisdom of these decisions can be questioned. Personal choices related to health often results in a difficulty. For example, a teenager may know the facts concerned smoking cigarettes and health but may be pressured by friends into being believing to do it is socially accepted. A great many factors, both inherited and environmental, have influence on the development of health--related behaviors, and it is beyond the scope of this text to discuss all these factors as they may affect any given individual. The decision to adopt a particular health, related behavior is, however, usually one of personal choices. There are healthy choices and there are unhealthy choices. When Fries and Crapo were discussing the morals of personal choice, they made a comparison. They suggest that to knowingly give oneself over to a behavior that has a statistical probability of shortening life is similar to attempting suicide. Therefore, for those individuals who are interested in preserving both the quality and quantity of life, personal health choices should reflect those behaviors connecting with a statistical probability of increased vitality and longevity. "Sedentary" most probably meansA. active.B. inactive.C. healthy.D. fre

单选题The nursery is bright and cheerful .

单选题I wasn't qualified for the job really, {{U}}but{{/U}} I got it anyhow.

单选题Smoking is {{U}}inhibited{{/U}} in public places. A. instructed B. inquired C. forbidden D. strived

单选题I can no longer tolerate his actions.