单选题Questions 22--25 are based on the following dialogue.

单选题It is difficult to say exactly how the music we call "rock" or "rock and roll" began. Its roots go back to many different countries and many different kinds of music and musicians. Rock music developed mainly from the interaction of black African and white European music. The Europeans and the African slaves who came to America during the seventeenth century each had their own different kinds of music. Black Africans used heavy drumbeats, a rough singing voice, and the calling of a melody and answer of a chorus. The white Europeans, mostly English and Scots, used a stronger melody, a less heavy beat, and instruments such as guitars, horns, and fiddles. The history of rock and roll is the history of how rock evolved from these two traditions. From the seventeenth to the twentieth century, musicians in the southern United States developed two new forms of music: the blues, usually played by blacks, and country music, played by whites. Black musicians sang the blues accompanied by a guitar. This music was similar to work songs: stories of troubles and pain, with lines that were repeated several times. The words "rock and roll" probably came from the black churches in the South, where people sang spiritual music and danced to the strong rhythms, which they called "rocking and reeling". At the same time, whites were playing country music, which was mostly traditional dancing music and slow songs that told sad stories. The singers were accompanied by string instruments such as fiddles and guitars. During this time blues and country musicians had some influence on each other, but the influence grew stronger after phonograph records became popular in the late nineteenth century. The birth of the electric guitar changed country and blues music in the 1940s. The sound of the electric guitar would become the sound of rock and roll. No one thinks of early rock and roll without thinking of Elvis Presley, the "King of Rock and Roll". Elvis was an ordinary boy. He grew up poor, learned to sing in church, and became a truck driver when he graduated from high school. No one thought that this young man with the guitar would change popular culture. But after he recorded two blues songs in Memphis, everything changed. He sang throughout the South, and teenagers went crazy over his amazing voice and his attractive performances. His music was an exciting mixture of white country and black blues. With his long hair and tight parts, he became a teenage idol. In two years, he was a national phenomenon. Elvis's career then went downhill. He went into the army, then stopped performing and made a series of bad movies. He continued to record, but his music rarely had the life of his early songs. He remained the symbol of rock and roll, however, not only in the United States but also around the world. He died in 1977, at the age of 42, but his music did not die with him. Rock music continues to develop and change, but the heart and soul of rock is the same heart and soul that Elvis expressed.

单选题Which of the following is NOT what people do on Valentine's Day?

单选题HowoldisKatie?A.16.B.17.C.18.D.19.

单选题{{B}}Text 1{{/B}} Health food is a general term applied to all kinds of foods that are considered more healthful than the types of foods widely sold in supermarkets. For example, whole grains, fried beans, and com oil are health foods. A narrower classification of health food is natural food. This term is used to distinguish between types of the same food. Raw honey is a natural sweetener, whereas refined sugar is not. Fresh fruit is a natural food, but canned fruit, with sugars and other additives, is not. The most precise term of all and the narrowest classification within health foods is organic food, used to describe food that has been grown on a particular kind of farm. Fruit and vegetables that are grown in gardens, that are sprayed only with organic fertilizers, that are not sprayed with poisonous insecticides, and that are not refined after harvest, are organic foods. Meat, fish, dairy and poultry products from animals that are fed only organically grown feed and that are not injected with hormones are organic foods. In choosing the type of food you eat, then, you have basically two choices: inorganic, processed foods, or organic, unprocessed foods. A wise decision should include investigation of the allegations that processed foods contain chemicals, some of which are proven to be toxic, and that vitamin content is greatly reduced in processed foods. Bread is typically used by health food advocates as an example of a processed food. First, the seeds from which the grain is sprayed with a number of very toxic insecticides. After the grain has been made into flour, it is made white with another chemical which is also toxic. Next a dough conditioner is added, along with a softener. The conditioner and softener are poisons, and in fact the softener has sickened and killed experimental animals. A very toxic anti-fungal compound, is added to keep the bread from getting moldy. Other foods from the supermarket would show a similar pattern of processing and preserving. You see we buy our good on the basis of smell, color, and texture, instead of vitamin content, and manufacturers give us what we want, even if it is poisonous. The alternative? Eat health foods, preferable the organic variety.

单选题Why couldn't Karl promise anything?

单选题Directions: Read the following text. Choose the best word or phrase for each numbered blank and mark A, B, C, or D on your ANSWER SHEET. It is an unfortunate fact of today's life that most people are growing up unable to see the stars. The prime night sky exists only {{U}} {{U}} 1 {{/U}} {{/U}}pictures. This is true not only in cities and suburbs, but also in {{U}} {{U}} 2 {{/U}} {{/U}}areas. We have lost our view of the stars and {{U}} {{U}} 3 {{/U}} {{/U}}our nighttime environment as well. Such a loss {{U}} {{U}} 4 {{/U}} {{/U}}be acceptable if light pollution were the inevitable price of progress, {{U}} {{U}} 5 {{/U}} {{/U}}it is not. Most sky glow is {{U}} {{U}} 6 {{/U}} {{/U}}. It comes mainly from lighting sources that do little to increase {{U}} {{U}} 7 {{/U}} {{/U}}safety, security or utility. They produce only glare, {{U}} {{U}} 8 {{/U}} {{/U}}over one billion dollars annually in the U.S. alone. {{U}} {{U}} 9 {{/U}} {{/U}}science, the impact has been even more dramatic. Scientists require observations of extremely faint objects that can only be {{U}} {{U}} 10 {{/U}} {{/U}}with advanced devices at sites {{U}} {{U}} 11 {{/U}} {{/U}}of air pollution and urban sky glow. For example, some images of the objects can {{U}} {{U}} 12 {{/U}} {{/U}}information about faraway comers of the universe, helping us understand the way in {{U}} {{U}} 13 {{/U}} {{/U}}our world was actually formed. {{U}} {{U}} 14 {{/U}} {{/U}}, the light from these objects can be lost at the very end of its {{U}} {{U}} 15 {{/U}} {{/U}}in the glare of our own sky. Reducing light pollution is not difficult. It {{U}} {{U}} 16 {{/U}} {{/U}}that public officials and citizens be {{U}} {{U}} 17 {{/U}} {{/U}}of the problem and act to counter it. As {{U}} {{U}} 18 {{/U}} {{/U}}, people can help reduce sky glow just by {{U}} {{U}} 19 {{/U}} {{/U}}lighting only when necessary. The stars above us are a {{U}} {{U}} 20 {{/U}} {{/U}}heritage. We must do our best to preserve it.

单选题 {{I}} Questions 5 to 9 are based on the following conversation.{{/I}}

单选题{{I}} Questions 14～17 are based on the following dialogue.{{/I}}

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单选题The fitness movement that began in the late 1960s and early 1970s centered around aerobic exercise (有氧操). Millions of individuals became engaged in a variety of aerobic activities, and literally thousands of health spas developed around the country to capitalize (获利) on this emerging interest in fitness, particularly aerobic dancing for females. A number of fitness spas existed prior to this aerobic fitness movement, even a national chain with spas in most major cities. However, their focus was not on aerobics, but rather on weight-training programs designed to develop muscular mass, strength, and endurance in their primarily male enthusiasts. These fitness spas did not seem to benefit financially from the aerobic fitness movement to better health, since medical opinion suggested that weight-training programs offered few, if any, health benefits. In recent years, however, weight training has again become increasingly popular for males and for females. Many current programs focus not only on developing muscular strength and endurance but on aerobic fitness as well. Historically, most physical-fitness tests have usually included measures of muscular strength and endurance, not for health-related reasons, but primarily because such fitness components have been related to performance in athletics. However, in recent years, evidence has shown that training programs designed primarily to improve muscular strength and endurance might also offer some health benefits as well. The American College of Sports Medicine now recommends that weight training be part of a total fitness program for healthy Americans. Increased participation in such training is one of the specific physical activity and fitness objectives of Healthy People 2000:National Health Promotion and Disease Prevention Objectives.

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