单选题Corn, {{U}}domesticated{{/U}} by the American Indians, was brought to Europe by Columbus.

单选题Laser beams can be used to bore metals and other hard materials.

单选题They have the {{U}}capability{{/U}} to destroy the enemy in a few days.

单选题The Population Situation in India With 950 million people, India ranks second to China among the most populous countries. But since China 1 a family planning program in 1971, India has been closing the gap. Indians have reduced their birth rate but not nearly 2 the Chinese have. If current growth rates continue, India"s population will 3 China"s around the year 2028 at about 1.7 billion. Should that happen, it won"t be the 4 of the enlightened women of Kerala, a state in southern India. While India as a whole adds almost 20 million people a year, Kerala"s population is virtually 5 . The reason is no mystery: nearly two-thirds of Kerala women practice birth control, 6 about 40% in the entire nation. The difference 7 the emphasis put on health programs, including birth control, by the state authorities, 8 in 1957 became India"s first elected Communist government. And an educational tradition and matrilineal (母系的) customs in parts of Kerala help girls and boys get 9 good schooling. While one in three Indian women is 10 , 90% of those in Kerala can read and write. Higher literacy rates 11 family planning. "Unlike our parents, we know that we can do more for our children if we have 12 of them," says Laial Cherian, 33, who lives in the village of Kudamaloor. She has limited herself 13 three children—one below the national 14 of four. That kind of restraint (抑制，克制) will keep Kerala from putting added 15 on world food supplies.

单选题People begin to change their eating habits because ________.

单选题Nuclear Power and Its Danger Nuclear power"s danger to health, safety, and even life itself can be summed up in one word: radiation. Nuclear radiation has a certain mystery about it, partly because it cannot be detected by human senses. It can"t be seen or heard, or touched, or tasted, even though it may be all around us. There are other things like that. For example, radio waves are all around us but we can"t detect them, sense them, without a radio receiver. Similarly, we can"t sense radioactivity without a radiation detector. But unlike common radio waves, nuclear radiation is not harmless to human beings and other living things. At very high levels, radiation can kill an animal or human being outright by killing masses of cells in vital organs. But even the lowest level of radiation can do serious damage. There is no level of radiation that is completely safe. If the radiation does not hit anything important, the damage may not be significant. This is the case when only a few cells are hit, and if they are killed outright. Your body will replace the dead cells with healthy ones. But if the few cells are only damaged, and if they reproduce themselves, you may be in trouble. They reproduce themselves in a deformed way. They can grow into cancer. Sometimes this does not show up for many years. This is another reason for some of the mystery about nuclear radiation. Serious damage can be done without the victim being aware at the time that damage has occurred. A person can be irradiated and feel fine, then die of cancer five, ten, or twenty years later as a result. Or a child can be born weak or liable to serious illness as a result of radiation absorbed by its grandparents. Radiation can hurt us. We must know the truth.

单选题There was a {{U}}simultaneous{{/U}} trial taking place in the next building. A. fair B. full C. coexisting D. public

单选题I was {{U}}astonished{{/U}} at the news of his escape.

单选题Dyslexia As many as 20% of all children in the United States suffer from some form of the learning disorder called dyslexia. Experts on dyslexia say that the problem is not disease. They say that persons with dyslexia use information in a different way. One of the world's great thinkers and scientists, Albert Einstein was dyslexic. Einstein said that he never thought in words the way that most people do. He said that he thought in pictures instead. The American inventor Thomas Edison was also dyslexic. Dyslexia first was recognized in Europe and the United States more than 80 year ago. Many years passed before doctors discovered that persons with the disorder were not mentally slow or disabled. The doctors found that the brains of persons with dyslexia are different. In most people, the left side of the brain, the part that controls language is larger than the right side. In persons with dyslexia, the right side of the brain is bigger. Doctors are not sure what causes this difference. However, research has shown that dyslexia is more common in males that in females, and it is found more often in persons who are left-handed. No one knows the cause of dyslexia, but some scientists believe that it may result from chemical changes in a baby's body long before it is born. They are trying to find ways to teach persons with dyslexia. Dyslexic persons think differently and need special kinds of teaching help. After they have solved their problems with language, they often show themselves to be especially intelligent or creative.

单选题Generation Gap A few years ago, it was fashionable to speak of a generation gap, a division between young people and their elders. Parents complained that children did not show them proper respect and obedience, while children complained that their parents did not understand them at all. What had gone wrong? Why had the generation gap suddenly appeared? Actually, the generation gap has been around for a long time. Many critics argue that it is built into the fabric of our society. One important cause of the generation gap is the opportunity that young people have to choose their own life styles. In more traditional societies, when children grow up, they are expected to live in the same area as their parents, to marry people that their parents know and approve of, and often to continue the family occupation. In our society, young people often travel great distances for their education, most out of the family home at an early age, marry or live or choose occupations different from those of their parents. In our upwardly mobile society, parents often expect their children to do better than they did: to find better jobs, to make more money, and to do all the things that they were unable to do. Often, however, the ambitions that parents have for their children are another cause of the division between them. Often they discover that they have very little in common with each other. Finally, the speed at which changes take place in our society is another cause of the gap between the generations. In a traditional culture, elderly people are valued for their wisdom, but in our society the knowledge of a lifetime may become obsolete overnight. The young and the old seem to live in two very different worlds, separated by different skills and abilities. No doubt, the generation gap will continue to be a feature of American life for some time to come. Its causes are rooted in the freedoms and opportunities of our society, and in the rapid pace at which society changes.

单选题The Romance of Arthur Most cultures have some sort of hero who represents the best values of what its people believe in. The unusual thing about King Arthur is that legends of his heroism have persisted for several centuries and spread far beyond England, the place where they began. The earliest stories of King Arthur represent him as a warrior who fought and subdued the invading Norsemen in the years around A D 700. This much of the Arthurian tale is probably based on fact. Whether called Arthur or not, there is a body of evidence supporting the existence of such a warrior. It is the later embellishment of the tale whose authentic city is questionable. According to these, Arthur was born in a castle in Tintagel on the stormy western coast of England and because he was the illegitimate son of King Uther Pendragon, he was spirited away by the magician Merlin and his true identity kept from him. He became king after freeing the sword Excalibur from the stone into which it was thrust. He married the beautiful Guinevere and assembled in his court all the noblest knights of the land, including Lancelot, with whom Guinevere would later be unfaithful to him. He was finally defeated in battle by his illegitimate son Mordred, and his body was spirited away to the isle of Avalon. This romantic tale greatly appealed to the English and the French in the Middle Ages, when the code of chivalry—ideal qualities of knighthood—constituted an important part of many stories. Tales of the heroism of Galahad, Percival, Gawain, and many other of Arthur"s knights were circulated as well. In England today, there are many sites claiming apiece of the Arthurian a legend. There is a mined castle at Tintagel. Near Glastonbury are the remains of an ancient abbey where Arthur"s and Guinevere"s bodies were supposedly exhumed in the 12th century. Neither of these proves that the legend is true, but they do keep its mystique alive.

单选题The policeman wrote down all the particulars of the accident.

单选题Not everyone can perceive the gradual change in the writer"s style.

单选题The gold medal won by two Chinese girls in the women's doubles of tennis is of great significance.A. happinessB. difficultyC. importanceD. impatience

单选题Feast on Turkey and Good Wishes at Thanksgiving Four weeks ago US children dressed as monsters and asked for sweets. That was Halloween。 In a few weeks American houses will be red and green and filled with presents, for Christmas. As if all this isn't enough, on Thursday this week, America will enjoy another festival - Thanksgiving. Children will have two days off school, shops will close and houses will be filled with families enjoying mountains of food. Every year, in Gainesville, Florida, an entire class celebrate Thanksgiving together. The class dresses up and puts on plays for their families. After the plays the families share a feast of traditional Thanksgiving foods like turkey and pumpkin pie. Dean Foster, an Il-year-old boy will take part in this celebration. He said: "I love Thanksgiving because it means time off school, lots of nice food and a happy family." His brother Ben, nine, said: "The best thing about Thanksgiving, is that when it is finished, it is time to start Christmas." But behind the food and the large amount of money spent there is another message. On Thursday evening, Dean and Ben's family will make a basket and put it on the table as they eat their evening meal. Each of them will write a list of things that they are thankful for and place the paper in the basket. The family will read the pieces of paper and take time to thank God and each other for providing them with comfortable and happy lives. Thanksgiving is a traditional festival that started in 1621, when the first pilgrims arrived in America to start a new life. After a hard year, they had a big autumn harvest. They held a feast and invited the native American Indians along to thank God for giving them enough food. Many countries celebrate Thanksgiving. They often fall after the fields have been harvested and the crops collected for winter.

单选题Don"t be afraid . I am not going to hurt you. ______

单选题Teaching Poetry No poem should ever be discussed or "analyzed", until it has been read aloud by someone, teacher or student. Better still, perhaps, is the practice of reading it twice, once at the beginning of the discussion and once at the end, so the sound of the poem is the last thing one hears of it. All discussions of poetry are, in fact, preparations for reading it aloud, and the reading of the poem is, finally, the most telling "interpretation" of it, suggesting tone, rhythm, and meaning all at once. Hearing a poet read the word in his or her own voice, on records or on film, is obviously a special reward. But even those aids to teaching can not replace the student and teacher reading it or, best of all, reciting (背诵) it. I have come to think, in fact, that time spent reading a poem aloud is much more important than "analyzing" it, if there isn't time for both. I think one of our goals as teachers of English is to have students love poetry. Poetry is "a criticism of life", and "a heightening (提升) of life". It is "an approach to the truth of feeling", and it "can save your life". It also deserves a place in the teaching of language and literature more central than it presently occupies. I am not saying that every English teacher must teach poetry. Those who don't like it should not be forced to put that dislike on anyone else. But those who do teach poetry must keep in mind a few things about its essential nature, about its sound as well as its sense, and they must make room in the classroom for hearing poetry as well as thinking about it.

单选题The word "Word" in the sentence "Word that I was honest and hard-working got around town in the fourth paragraph means

单选题The high-speed trains can have a major impact on travel preferences.

单选题 Hercules Once upon a time there was a great Greek hero, Hercules. He was taller and stronger than anyone you have ever seen. On his shoulder he carried a club and in his hand he held a bow (弓). He was known as the hero of a hundred adventures. Hercules served a king. The king was afraid of him. So again and again he sent him on difficult tasks. One morning the king sent for him and told him to fetch three golden apples for him from the garden of the Singing Maidens (歌女). But no one knew where the garden was. So Hercules went away. He walked the whole day and the next day and the next. He walked for months before he saw mountains far in the distance one fine morning. One of the mountains was in the shape of a man, with long, long legs and arms and huge shoulders and a huge head. He was holding up the sky. Hercules knew it was Atlas, the Mountain God. So he asked him for help. Atlas answered, "My head and arms and shoulders all ache. Could you hold up the sky while I fetch the golden apples for you?" Hercules climbed the mountain and shouldered the sky. Soon the sky grew very heavy. When finally Atlas came back with three golden apples, he said, "Well, you are going to carry the mountain for ever. I'm going to see the king with the apples." Hercules knew that he couldn't fight him because of the sky on his back. So he shouted: "Just one minute's help. My shoulders are hurting. Hold the sky for a minute while I make a cushion (垫子) for my shoulders." Atlas believed him. He threw down the apples and held up the sky. Hercules picked up the apples and ran back to see the king.