单选题Dumped waste might contaminate water supplies.

单选题Travelling and meeting new people widen the mind of young people.

单选题The weather is a constant {{U}}subject{{/U}} of conversation in Britain. A. question B. problem C. title D. topic

单选题Bats are extremely shy creatures and avoid humans if at all possible.

单选题In spite of a problem with the faulty equipment, some very useful work was accomplished.

单选题These animals migrate south annually in search of food.

单选题He {{U}}got well{{/U}} very quickly after his illness. A. recovered B. discovered C. uncovered D. covered

单选题On British Newspapers Besides the daily newspapers, there are a number of Sunday newspapers in Britain. Many of them are connected with the "dailies", though not run by the same editor and his members. The Sunday papers are larger than the daily papers and usually contain more articles concerned with comment (评论) and general information rather than news. The national daily and Sunday papers have the largest circulation(发行) in the world. Of the Sunday papers, the Observer and the Sunday Times are the best known. It is a regrettable fact that the number of magazines of a literary or political nature has dropped down since the war. This has probably been caused by the ever-wider use of radio and television. The most successful magazines are those published for women. Their covers are designed to catch the eye, and they certainly succeed in doing so! They offer their readers articles on cookery (烹饪法), fashion, needlework, and many other matters of women interest. They also provide advice to those in love, and adventures with handsome heroes. Some women's magazines also include serious articles of more general interest. The visitor who looks at the magazines displayed in a large bookstall (书摊) which may be found in an important railway station will notice that there is a wide variety of technical or semitechnical(半专业的) books and magazines. There are magazines for the motorist, the farmer, the gardener, the nurse, and many others. There are many local and regional newspapers. It is common in Britain for a news agent(报刊经售人) to deliver (投递) the morning papers to his customers for a small extra payment, this service is usually performed by boys and girls who want to earn some pocket-money.

单选题Techniques to employ the energy of the sun are being developed. ______

单选题The curious look from the strangers around her made her feel uneasy .

单选题Two People, Two Paths You must be familiar with the situation: Dad's driving, Mum's telling him where to go. He's sure that they need to turn left. But she says it's not for another two blocks. Who has the better sense of direction? Men or women. They both do, a new study says, but in different ways. Men and women, Canadian researchers have found, have different methods of finding their way. Men look quickly at landmarks (地标) and head off in what they think is the right direction. Women, however, try to picture the whole route in detail and then follow the path in their head. "Women tend to be more detailed," said Edward Cornell, who led the study, "while men tend to be a little bit faster and... a little bit more intuitive (直觉感知的). " In fact, said Cornell, "sense of direction" isn't one skill but two. The first is the "survey method". This is when you see an area from above, such as a printed map. You can see, for example, where the hospital is, where the church is and that the supermarket is on its right. The second skill is the "route method". This is when you use a series of directions. You start from the hospital, then turn left, turn right, go uphill-and then you see the supermarket. Men are more likely to use the survey method while women are more likely to use one route and follow directions. Both work, and neither is better. Some scientists insist that these different skills have a long history. They argue it is because of the difference in traditional roles. In ancient times, young men often went far away with the older men to fish or hunt. The trip took hours or days and covered unfamiliar places. The only way to know where you were was to use the survey method to remember landmarks-the mountains, the lakes and so on. The women, on the other hand, took young girls out to find fruits and plants. These activities were much closer to home but required learning well-used paths. So, women's sense of space was based on learning certain routes.

单选题A magneto is a technical term for

单选题 阅读下面的短文，文中有15处空白，每处空白给出4个选项。请根据短文的内容，从4个选项中选择1个最佳答案。 {{B}}Solar equipment{{/B}} Since about 1800, near the beginning of the Industrial Revolution, coal, petroleum, and gas have been used at a rapidly increasing rate. The supply of these {{U}}(51) {{/U}} is limited, and electric power is very scarce in many places. Some scientists believe solar energy is the only {{U}}(52) {{/U}} which can meet the world's enormous {{U}}(53) {{/U}} for power. Great progress had been made in harnessing the sun. Not {{U}}(54) {{/U}} is the sun now used in cooking, but it also supplies power for {{U}}(55) {{/U}} things as beacon lights for ships and airplanes. It operates telephone lines, portable radios, electric clocks, hearing aids, and {{U}}(56) {{/U}} communication satellites. Some homes and office buildings in the United States are now being {{U}}(57) {{/U}} with solar energy. The three most significant types of solar equipment so {{U}}(58) {{/U}} are the furnace, the still, and the cell. Solar furnaces heat water or air, {{U}}(59) {{/U}} is then circulated through a building to make it comfortable. Solar stills are {{U}}(60) {{/U}} important because they can provide {{U}}(61) {{/U}} water at a relatively cheap rate. Salt can be easily removed from sea water with a solar still. The most highly developed is the solar cell. Some cells are so {{U}}(62) {{/U}} that they can turn 16 percent of the energy they received from the sun into electric energy. One of the cell's biggest advantages is {{U}}(63) {{/U}} it can be made either small enough to carry {{U}}(64) {{/U}} large enough to produce a current that can run an automobile. Besides, it has a very long life. It is still too expensive for the average consumer. But when ways are {{U}}(65) {{/U}} to produce it more cheaply, we can expect its use to be widespread.

单选题Guests were scared when the bomb exploded.

单选题Smoking is not permitted in the office.

单选题I have been trying to (quit) smoking.

单选题The legislative filibuster is a parliamentary {{U}}tactic{{/U}} designed to delay or prevent action by the majority.

单选题The ice is not thick enough to bear the weigh of a tank.A. sufferB. acceptC. receiveD. endure

单选题He is Ucertain/U that the dictionary is just what I want,

单选题{{B}}第二篇{{/B}} {{B}} Dancing in the Streets{{/B}} If there is one thing certain to get Brazilians on their feet, it is the Rio Carnival (狂欢节). Held in Rio de Janeiro, the country's biggest city, the carnival began on February 20 when the mayor gave key of the city to Rei Momo — the Lord of Misrule (无序之皇) On his orders, each year people turn the city into a paradise of dance and music. The following six days are so full of parades, street dancing, fantastic clothes and partying (聚会) that many people forget about eating and sleeping. It was the passion of the carnival that attracted me to Brazil and made me settle down in Rio," said Bob Nadkarni, a British man who has lived in the city for several years. For many Brazilians, the centrepiece of the carnival is samba (桑巴舞), a typical Brazilian dance. Every year, tens of thousands of visitors and locals show off their passion and energy in the streets, following the beat (节拍 of the Latin music. The climax to this street party is the float (彩车 parade, in which floats decorated with tons of fresh flowers by various samba schools and local communities move through the city. On the top of each float stands the candidate for the Drum Queen, who is chosen at the end of the party. While most people are free to enjoy the celebrations, Rio's police officers have to keep a clear head. Following the murder of three officers in a gunfight early last week, the Brazilian Government has tightened security in Rio. The street fighting, robbery and sex crimes that accompany the carnival are very difficult to police. Carnivals began in ancient Rome as a celebration at which people fed wild wolves, in honour of the city's founder who was said to have been raised by a she-wolf. Brazil gave new life to this tradition and so, despite the troubles, the carnival will remain a symbol of the country's culture.