单选题Paper or Plastic? Take a walk along the Chesapeake Bay, and you are likely to see plastic bags floating in the water. Ever since these now ubiquitous (到处存在的) symbols of American super-consumption showed up in the supermarkets, plastic shopping bags have made their (51) into local waterways, and from there, into the bay, where they can (52) wildlife. Piles of them - the (53) takes centuries to decompose (分解) -- show up in landfills and on city streets. Plastic bags also take an environmental toll in the form of millions of barrels of oil expended every year to produce them. Enter Annapolis (54) you will see plastic bags distributed free in department stores and supermarkets. Alderman Sam Shropshire has introduced a well-meaning proposal to ban retailers (零售商) (55) distributing plastic shopping bags in Maryland's capital. Instead, retailers would be required to offer bags (56) recycled paper and to sell reusable bags. The city of Baltimore is considering a similar measure. Opponents of the idea, however, argue that (57) bags are harmful, too: they cost more to make, they consume more (58) to transport, and recycling them causes more pollution than recycling plastic. The argument for depriving Annapolis residents (居民) of their plastic bags is (59) accepted. Everyone in this (60) is right about one thing: disposable shopping bags of any type are (61) , and the best outcome would be for customers to reuse bags instead. Annapolis's mayor is investigating how to hand out free, reusable (可以再度使用的) shopping bags to city residents, a proposal that can proceed regardless of whether other bags are banned. A less-expensive (62) would be to encourage retailers to give discounts to customers (63) bring their own, reusable bags, a policy that a spokesman for the supermarket Giant Food says its chain already has in place. And this policy would be more (64) if stores imitated furniture mega-retailer Ikea and charged for disposable bags at the checkout counter. A broad ban on the use of plastic shopping bags, which would merely replace some forms of pollution with others, is not the (65) .

单选题The news will {{U}}horrify{{/U}} everyone. A.attract B.terrify C.tempt D.excite

单选题The company has the right to end his employment at any time.

单选题Compared with the clear words of her boyfriend on screen, his accent is

单选题下面有3篇短文，每篇短文后有5道题，每题后面有4个选项。请仔细阅读短文并根据短文回答其后面的问题，从4个选项中选择1个最佳答案。{{B}}第一篇{{/B}} Unless we spend money to spot and prevent asteroids(小行星) now, one might crash into Earth and destroy life as we know it, say some scientists. Asteroids are bigger versions of the meteoroids(流星) that reace across the night sky. Most orbit the sun far from Earth and don't threaten us. But there are also thousands of asteroids whose orbits put them on a collision course with Earth. Buy $ 50 million worth of now telescopes right now. Then spend $ 10 million a year for the next 25 years to locate most of the space rocks. By the time we spot a fatal one, the scientists say, we'll have a way to change its course. Some scientists favor pushing asteroids off course with nuclear weapons. But the cost wouldn't be cheap. Is it worth it? Two things experts consider when judging any risk are: 1) How likely the event is; and 2) How bad the consequences if the event occurs. Experts think an asteroid big enough to destroy lots of life might strike Earth once every 500,000 years. Sounds pretty rare— but if one did fall, it would be the end of the world. "If we don't take care of these big asteroids, they'll take care of us," says one scientist. "It' s that simple." The cure, though, might be worse than the disease. Do we really want fleets of nuclear weapons sitting around on Earth? "The world has less to fear from doomsday(毁灭性) rocks than from a great nuclear fleet set against them," said a New York Times article.

单选题In order to improve our standard of living, we have to Uaccelerate/U production.

单选题Two major findings have emerged from these researches. Firstly, the greater part of the development of observed intelligence occurs in the earliest years of life. It is estimated that 50 percent of measurable intelligence at age 17 is already predictable by the age of four. Secondly, the most important factors in the environment are language and psychological aspects of the parent-child relationship. Much of the difference in measured intelligence between "privileged" and "disadvantaged" children may be due to the latter's lack of appropriate verbal stimulation and the poverty of their perceptual experiences. The paragraph mainly talks aboutA. observed intelligence occurs in the earliest years of life.B. the importance of language and psychological aspects of the parent-child relationship.C. the two major findings from the recent researches on intelligence.D. lack of appropriate verbal stimulation leads to children's disadvantage in intelligenc

单选题New Product Will Save Lives Drinking water that looks clean may still contain bugs (虫子), which can cause illness. A small company called Genera Technologies has produced a testing method in three stages, which shows whether water is safe. The new test shows if water needs chemicals added to it, to destroy anything harmful. It was invented by scientist Dr. Adrian Patton, who started Genera five years ago. He and his employees have developed the test together with a British water company. Andy Headland, Genera's marketing director, recently presented the test at a conference in the USA and forecasted good American sales for it. Genera has already sold 11 of its tests at $42, 500 a time in the UK and has a further four on order. It expects to sell another 25 tests before the end of March. The company says it is the only test in the UK to be approved by the government. Genera was formed five years ago and until October last year had only five employees: it now employs 14. Mr. Headland believes that the company should make around $19 million by the end of the year in the UK alone.

单选题She seemed to have detected some anger in his voice.A.heardB. realizedC. noticedD. got

单选题The people who are to be happy fix their attention on the conveniences of things, the pleasant pans of conversation, the well-prepared dishes, the goodness of the wines, the fine weather. They enjoy all the cheerful things. Those who are to be unhappy think and speak only of the contrary things. Therefore, they are continually discontented. By their remarks, they sour the pleasure of the society, offend many people, and make themselves disagreeable everywhere. If this turn of mind were founded in nature, such unhappy persons would be the more to be pities. The tendency to criticize and be disgusted is perhaps taken up originally by imitation. It grows into a habit, unknown to its possessors. The habit may be strong, but it may be cured when those who have it are convinced of its bad effects on their interests and tastes. I hope this little warning may be of service to them, and help them change this habit. The phrase" sour the pleasure of society" most probably meansA. having a good taste to the pleasure of society.B. not being content with the pleasure of society.C. feeling unhappy with the pleasure of society.D. enjoying the pleasure of society.

单选题下面有3篇短文，每篇短文后有5道题。请根据短文内容，为每题确定1个最佳选项。{{B}}第一篇{{/B}} Electronic Teaching The potential of closed-circuit television and other new electronic teaching tools is so great that it is fascinating to visualize "the school of tomorrow" Televised lessons will originate from a central building having perhaps four or five master studios. The lessons will be carried into classrooms all over a city, or even an entire country. After a televised lesson has been given, the classroom teacher will take over for the all-important "follow-up" period. The students will ask any troublesome questions, and difficult points will be cleared up through discussion. The teacher in the classroom will have additional electronic tools. On the teacher's desk, the traditional chalk and erasers will have been replaced by a multiple-control panel and magnetic tape player. The tape machines will run pre-recorded lessons which pupils will follow by headphones. The lessons will be specifically geared to the students' levels of ability. For instance, while the class as a whole studies history, each student will receive an individual history lesson, directed to his particular level of ability. Should question arise, the students will be able to talk directly to the teacher on individual "intercoms" without disturbing the rest of the class. In this way, the teacher will be able to conduct as many as three classes at the same time. With the rapid development of computer science, students will be aided with specially prepared multimedia software to study their subjects better. Homework will possibly be assigned and handed in via electronic mail system. Students can even take examinations on their computer linked with the teacher's and get the score instantly. They will get certificates or diplomas if they pass all the required examinations. Experts believe that this type of education will be very popular in the years ahead.

单选题Shopping habits in the United States have changed greatly in the last quarter of the 20th century. As early as in the 1900s most American towns and cities had a Main Street. Main Street was always in the heart of a town. This street was (51) on both sides with many varied businesses. Here, shoppers walked into stores to look at all sorts of merchandise: clothing, furniture, hardware, groceries. (52) , some shops offered service. These shops included drugstores, restaurants, shoe repair stores, and barber or hairdressing shops. (53) in the 1950s, a change began to take place. Too many automobiles had crowded into Main Street (54) too few parking places were (55) shoppers. Because the streets were crowded, merchants began to look with interest at the open spaces (56) the city limits. Open space is what their car driving customers needed. And open space is what they got (57) the first shopping centre was built. Shopping centres, or rather malls, (58) as a collection of small new stores (59) crowded city centres. (60) by hundreds of free parking space, customers were drawn away from (61) areas to outlying malls. And the growing (62) of shopping centres led (63) to the building of bigger and better stocked stores. (64) the late 1970s, many shopping malls had almost developed into small cities themselves. In addition to providing the convenience of one stop shopping, malls were transformed into landscaped parks, (65) benches, fountains, and outdoor entertainment.

单选题What Is the Coolest Gas in the Universe'?. What is the coldest air temperature ever recorded on the Earth? Where was this low temperature recorded? The coldest recorded temperature on Earth was --91℃. which (51) in Antarctica (南极洲) in 1983. We encounter an interesting situation when we discuss temperatures in (52) . Temperatures in Earth orbit (轨道) actually range from about +120℃ to --120℃. The temperature depends upon (53) you are in direct sunlight or shade. Obviously, -120℃ is colder than our body can (54) endure. The space temperatures just discussed affect only our area of the solar (55) . Obviously, it is hotter closer to the Sun and colder as we travel (56) from the Sun. Scientists estimate temperatures at Pluto are about --210℃. How cold is the lowest estimated temperature in the entire universe? Again, it depends upon your (57) . We are taught it is supposedly (58) to have a temperature below absolute zero, which is --273℃, at which atoms do not move. Two scientists, Cornell and Wieman, have successfully (59) down a gas to a temperature barely above absolute zero. They won a Nobel Prize in Physics in 2001 for their work--not a discovery, in this case. Why is the two scientists' work so important to science? In the 1920s, Satyendra Nath Bose was studying an interesting (60) about special light particles (微粒) we now call photons (光子). Bose had trouble (61) other scientists to believe his theory, so he contacted Albert Einstein. Einstein's calculations helped him theorize that atoms (62) behave as Bose thought--but only at very cold temperatures. Scientists have also discovered that ultra-cold (超冷) atoms can help them make the world's atomic clocks even (63) accurate. These clocks are so accurate today they would only lose one second (64) six million years! Such accuracy will help us travel in space because distance is velocity (速度) times time(d= v × t) With the long distances involved in space (65) , we need to know time as accurately as possible to get accurate distance.

单选题His breathing was steady .

单选题As he wanted to watch the tennis final of the Olympic Games, he left a pile of dishes unwashed in the kitchen.

单选题The meaning is still {{U}}obscure{{/U}}. A. transparent B. vague C. alien D. significant

单选题The upper atmosphere is believed to consist of a number of roughly concentric layers, which include the troposphere (???) and stratosphere (???).A. plainlyB. repeatedlyC. nearlyD. changeably

单选题It is the movement, net the color, of objects that Uexcites/U the bull.

单选题The writer cites the Duomo in the last paragraph as an example to illustrate that

单选题Please don't drop that china vase: it's one of my prize Upossessions/U.