单选题 Jim was intelligent, but he hated hard work
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单选题6. I told him the news ______ so he couldn't have forgotten.
单选题 Time ______
单选题. The number of speakers of English in Shakespeare's time is estimated to have been about five million. Today it is estimated that some 260 million people speak it as a native language, mainly in the United States, Canada, Great Britain, Ireland, South Africa, Australia and New Zealand. In addition to the standard varieties of English found in these areas, there are a great many regional and social varieties of the language, as well as various levels of usage that are employed both in its spoken and written forms. It is virtually impossible to estimate the number of people in the world who have acquired an adequate working knowledge of English in addition to their own languages. The purpose for which English is learned and the situations in which such learning takes place are so varied that it is difficult to define and still more difficult to assess what constitutes an adequate working knowledge for each situation. The main reason for the widespread demand for English is its present day importance as a world language. Besides serving the infinite needs of its native speakers, English is a language in which some of the important works in science, technology, and other fields are being produced, and not always by native speakers. It is widely used for such purposes as meteorological and airport communications, international conferences, and the dissemination of information over the radio and television networks of many nations. It is a language of wider communication for a number of developing countries, especially former British colonies. Many of these countries have multi-lingual populations and need a language for internal communication in such matters as government, commerce, industry, law and education as well as for international communication and for access to the scientific and technological developments in the West.1. What would be an appropriate title for this selection? ______
单选题. As suppliers of most of the food we eat and of raw materials for many of industrial processes, agriculture is clearly an important area of the economy. But the industrial performance of agriculture is even more important than this, or in nations where the productivity of farmers is low, most of the working population is needed to raise food and few people are available for production of investment goods or for other activities required for economic growth. Indeed, one of the factors related most closely to the per capital income (人均收入) of a nation is the fraction of its population engaged in farming. In the poorest nations of the world more than half of the population lives on farms. This compares sharply with less than 10 percent in Western Europe and less than 4 percent in the United States. In short, the course of economic development in general depends in a fundamental way on the performance of farmers. This performance, in turn, depends on how agriculture is organized and on the economic environment or market structure, within which it functions. In the following pages the performance of American agriculture is examined. It is appropriate to begin with a consideration of its market structure.1. This passage is most probably ______.
单选题. Do you find getting up in the morning so difficult that it's painful? This might be called laziness, but Dr. Kleitman has a new explanation. He has proved that everyone has a daily energy cycle. During the hours when you labor through your work you may say that you're "hot". That's true. The time of day when you feel most energetic is when your cycle of body temperature is at its peak. For some people the peak comes during the forenoon. For others it comes in the afternoon or evening. No one has discovered why this is so, but it leads to such familiar monologues (自言自语) as: "Get up, John! You'll be late for work again!" The possible explanation to the trouble is that John is at his temperature-and-energy peak in the evening. Much family quarrelling ends when husbands and wives realize what these energy cycles mean, and which cycle each member of the family has. You can't change your energy cycle, but you can learn to make your life fit it better. Habit can help, Dr. Kleitman believes. Maybe you're sleepy in the evening but feel you must stay up late anyway. Counteract (对抗) your cycle to some extent by habitually staying up later than you want to. If your energy is low in the morning but you have an important job to do early in the day, rise before your usual hour. This won't change your cycle, but you'll get up steam and work better at your low point. Get off to a slow start which saves your energy. Get up with a leisurely yawn (呵欠) and stretch. Sit on the edge of the bed a minute before putting your feet on the floor. Avoid the troublesome search for clean clothes by laying them out the night before. Whenever possible, do routine work in the afternoon and save tasks requiring more energy or concentration for your sharper hours.1. If a person finds getting up early a problem, most probably ______.
单选题 As protector of her family's health
单选题6. I as well as all your friends ______ busy to prepare for your birthday party.
单选题. Eating in space is different from eating on earth. The food that astronauts carry with them does not look like the food you eat. Some food is carried in closed bags. It is cooked and frozen before the astronauts get it. All the water is removed from the food. In the spaceship the astronaut puts the water back. He "shoots" hot or cold water into the food bag with a special gun. He eats the food through a small hole in the bag. Other foods come in bite sizes. The astronaut puts a whole piece in his mouth at once. There can be no crumbs. Crumbs would float around the spaceship and get in the way. Meat and cake often come in bite-sized pieces. Astronauts can't drink water from open cups. The water would float in drops in the air. The water is put in the special gun. The astronaut shoots the water into his mouth. Eating in space is not easy. Astronauts must learn to eat this way.1. The story does not say this, but from what we have read, we can tell that ______.
单选题. Amanda is careful about anything that touches her lips. She 21 instructions on every food pack and does all she can to 22 "forbidden" foods. She 23 everyone about the things being used in cooking. Before a trip to Australia, she phoned every airline 24 she found one 25 to ban (禁止) nuts from the 26 . Going too far? Not when you have food allergies (过敏症) that can put your 27 in danger. "I tell waiters that even the 28 amount of peanuts could kill me," says Amanda. With 29 allergies to peanuts and shellfish, Amanda has to play by the rules. 30 , she still gets in trouble. A few years ago, she went to a New Year's Eve party 31 there were bowls of peanuts on the tables. They were 32 when she arrived, but still she kept her 33 in a side room. At midnight, as people came in to wish her happy new year, she 34 to feel short of breath and was dying for 35 . "I took some anti-allergy medicine, then left," says Amanda. " 36 home I was struggling to 37 and my head began aching uncontrollably." Amanda knew she had to 38 to hospital fast. "I'm going into shock," she said breathlessly to 39 when she arrived. They gave her intramuscular adrenalin (肾上腺肌肉注射), which probably 40 her life.21.
单选题. In the last century people have accomplished almost unbelievable technological feats. From the invention of the steamship to the development of the spaceship, humankind's mechanical genius has been displayed. A phone is picked up and through a thin, plastic-coated wire, conversation reaches people around the block or thousands of miles away. Television creates images on a glass screen, and soon, through holography (全息照相技术) a screen may not even be needed. This apparent technological mastery has led people to the quite incorrect and dangerous belief that technology can solve any and every problem the environment presents. All that is needed is enough time, effort, money, and know-how. But not everything is possible. For instance, unaided humans in their present form could not run a mile in one minute, or anywhere near it. That is believed to be biologically impossible. Just as some things are biologically impossible, others are technologically infeasible or improbable. It is not likely that we will solve the world's food problem technologically. Even with the great advances in methods of food production, more people are starving today than ever before. This is partially because population is increasing faster than the research and innovations that compensate for such population growth. Technology, for most people, is not the solution to the loneliness or despair, nor will it alleviate (缓解) hatred or prejudice. It can be a tool but not a total cure. In fact, the advanced technologies of modern people might ultimately end our existence, because if technological "progress" is not accompanied by appropriate social change and ecological (生态的) responsibility, people may drown in the poisons of their own industrial wastes.1. What is the main topic of this passage? ______
单选题 Space is a dangerous place
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单选题. You really have to get very old before you realize you're old. I'm in my middle fifties and I don't feel 1 yet. However, sometimes I look back at my childhood and 2 things to the way life is for 3 kids, some things have certainly changed. One area of change is 4 . Some changes have been improvements. Some changes, on the other hand, have been 5 . When I started school, most people didn't have a television; TV was just beginning to get 6 . My father decided to go all out and buy a 16-inch black and white Motorola 7 . I still remember watching the Lone Ranger save people, from the 8 guys on that awesome electronic machine. That was exciting! Now, 9 have larger pictures in full color. The pictures are clearer and the sound is much more 10 . The new high definition sets are made to rival 11 screens. The variety and quantity of program has 12 greatly. There are hundreds of channels and more shows than one person could ever watch. There are many fine entertainment and educational 13 . There's also a lot of garbage, stuff that most 14 don't want their kids exposed to. Overall, we have more choices, and that is good. I wonder what 15 will be like when today's kids are my age.1.
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单选题 Human needs seem endless