单选题I parked my car right here but now it's gone. It ______.A. must be stolenB. may be stolenC. must have stolenD. must have been stolen

单选题The car was running so fast that it crashed into the truck and the driver was killed ______the spot.

单选题He moved away from his parents, and missed them enjoy ______ the exciting life in New York. A. enough to B. too much to C. very much to D. much so as to

单选题Dr. William C. Stokoe, Jr., was the chairman of the English Department at Gallaudet University. He saw the way deaf people communicated and was extremely (21) . He was a hearing person, and signs of the deaf were totally new to him. Dr. Stokoe decided to propose a study of sign language. Many other teachers were not interested, and thought Dr. Stokoe was (22) to think about studying sign language. Even deaf teachers were not very interested in the project. However, Dr. Stokoe did not give up. (23) , he started the Linguistics Research Program in'1957. Stokoe and his two deaf assistants, worked (24) this project during the summer and after school. The three (25) made films of deaf people signing. The deaf people in the films did not understand (26) the research was about and were just trying to be nice to Dr. Stokoe. Many people thought the whole project was silly, but (27) agreed with Dr. Stokoe in order to please him. Stokoe and his (28) studied the films of signing. They (29) the films and tried to see patterns in the signs. The results of the research were (30) : the signs used by all of the signers (31) certain linguistic rules. Dr. Stokoe was the first linguist to test American Sign Language (32) a real language. He published the (33) in 1960,but not many people paid attention to the study. Dr. Stokoe was still (34) —he was the only linguist who (35) that sign language was more than gestures. He knew it was a language of its own and not just another form of English.

单选题Victory is just ______

单选题The strange close understanding between twins is a familiar enough phenomenon. Often they seem to understand each other and share each other"s emotions to such an extent that one suspects some kind of thought communication. What is not so widely known is that this special relationship often acts as brake on twins" intellectual development. As they are partly isolated in their own private world, twins communicate less with adults than do other children. The verbal ability of a four-year-old twin is typically six months behind that of a non-twin. The problem can be particularly severe in an underprivileged family, a one-parent family for example, where there is little stimulation for children anyway. Such children, while capable of mutual comprehension in a private language, often remain incomprehensible to outsiders and thus at a severe educational disadvantage. The only solution to the problem, cruel though it may seem, is to separate the twins thus forcing them to acquire ordinary speech helped and guided by sympathetic parents and teachers.

单选题{{B}}Passage Two{{/B}} Sea horses are unusual parents. The female sea horses lay the eggs, but unlike other creatures, it's the males that give birth to the young. Male sea horses have a fold of skin on their bellies that forms pocket, called a brood pouch. During the breeding season, the sea horse's pouch swells to receive eggs. A female sea horse lays up to 200 eggs at a time in the pouch. Then she swims off, leaving her male partner to care for the developing eggs and give birth to young sea horses. The female will return everyday to check on her mate and the eggs, but she doesn't stay long, nor does she take part in the birth. It takes from two to six weeks for the eggs in the male's pouch to develop. During this time the male avoids open water and hides in sea grass. His big pouch makes it difficult for him to swim, so the male often uses his tail to grasp a piece of sea grass. Firmly gripping the grass, he will stay perfectly still for hours or even days. The male sea horse will change his color to blend with his surroundings and avoid being seen by predators who will try to eat him or poke holes in his pouch to get the eggs. The eggs hatch inside the male's pouch. When the babies begin moving around, the male sea horse knows it's time for them to be born. He grabs a sea grass stem with his tail and begins rocking, bending, and stretching his body so that the rest of the babies can be born. Sometimes he has to press his pouch against a rock Or some stiff seaweed to force the young out. Sea horse babies are born in groups of five or more. Sometimes it takes two days for the father sea horse to give birth to all his young. He is very tired when it's over. Soon after giving birth to one brood, the male will approach his mate and show her his empty pouch. This tells her he is ready to receive eggs again.

单选题Lewis withdrew from administration to devote himself to teaching.

单选题The water we drink and use is running short in the world. We all have to learn how to stop wasting our limited water. One of the steps we should take is to find ways of reusing it. Experiments have already been done in this field. Today in most large cities, fresh water is used only once, then it runs into waste system. But it is possible to pipe the used water to a purifying factory. There it can be filtered and treated with chemicals so that it can be used again, just as it were fresh from a spring. But even if every large city purified and reused its water, we still would not have enough. Then we could turn to the oceans. All we"d have to do to make use of the seawater on earth is to get rid of the salt. This process is called desalinization, and it is already in use in many parts of the world.

单选题With the Met Office predicting a summer heatwave, Macmillan Cancer Relief this week (1) its customary warning about the sun's ultravioiet rays: (2) , it says, for the huge rise in skin cancers affecting 70,000 people a year. (3) a hat and long-sleeved shirt, it advises, keep in the (4) in the middle of the day, and slap (5) suncream with a protection factor of 15 or above. We all know it (6) ; it's the message that's been drummed into us for the past 20 years. Too much sun (7) . But now there's a fly in the suntan lotion, complicating the message's clarity. It comes (8) a thin, quietly-spoken and officially retired Nasa scientist, Professor William Grant, who says that sun doesn't kill; in act, it does us the world of (9) . What's killing us, he says, is our (10) with protecting ourselves from skin cancer. Grant is trying to turn the scientific world (11) down. Talking to me on a trip to Britain this week, he (12) his startling--and at first appearance off-the-wall new calculation that (13) excessive exposure to the sun is costing 1,600 deaths a year in the UK from melanoma skin cancers, (14) exposure to the sun is the cause of 25,000 deaths a year from cancer generally. In other words, one sixth of all cancer deaths could be prevented (15) we sunned ourselves a little more; in comparison, the melanoma (16) is insignificant. The reason is vitamin D. Grant, the director of the Sunlight, Nutrition and Health Research Centre (SUNARC) he (17) in California a year ago, says that he and other scientists have (18) vitamin D deficiency as a key cause (19) 17 different types of cancer including melanoma, osteoporosis, diabetes, multiple sclerosis and other neurological (20) .

单选题The English Reformation began with______.

单选题(2008)Letters of apology should be written and sent______.

单选题The salon was the most elegant room Madeline had ever seen, despite its ______.

单选题______ shipment, please amend the L/C to allow transshipment. A．Regarding to B．Covering to C．Concerning D．Referring

单选题On the grounds of Wimbledon, a year-round museum is devoted to the joys and history of the sport—and one of their current exhibits showcases Ted Tinling, the popular and controversial designer of tennis dresses.

单选题The upshot of all this was that travelling had become precarious.

单选题Cats, according to the author, ______.

单选题{{B}}Text 3{{/B}} A very important world problem, if not the most serious of all the great world problems which affect us at the moment, is the increasing number of people who actually inhabit this planet. The limited amount of land and land resources will soon be unable to support the huge population if it continues to grow at its present rate. In an early survey conducted in 1888, a billion and a half people inhabited the earth. Now, the population exceeds five billion and is growing fast—by the staggering figure of 90 million in 1988 alone. This means that the world must accommodate a new population roughly equal to that of the United States and Canada every three years! Even though the rate of growth has begun to slow down, most experts believe the population size will still pass eight billion during the next 50 years. So why is this huge increase in population taking place? It is really due to the spread of the knowledge and practice of what is becoming known as "Death Control". You have no doubt heard of the term "Birth Control"—" Death Control" is something rather different. It recognizes the work of the doctors and scientists who now keep alive people who, not very long ago, would have died of a variety of then incurable diseases. Through a wide variety of technological innovations that include farming methods and sanitation, as well as the control of these deadly diseases, we have found ways to reduce the rate at which we die—creating a population explosion. We used to think that reaching seventy years old was a remarkable achievement, but now eighty or even ninety is becoming recognized as the normal life-span for humans. In a sense, this represents a tremendous achievement for our species. Biologically this is the very definition of success and we have undoubtedly become the dominant animal on the planet. However, this success is the very cause of the greatest threat to mankind. Man is constantly destroying the very resources which keep him alive. He is destroying the balance of nature which regulates climate and the atmosphere, produces and maintains healthy soils, provides food from the seas, etc. In short, by only considering our needs of today we are ensuring there will be no tomorrow. An understanding of man's effect on the balance of nature is crucial to be able to find the appropriate remedial action. It is a very common belief that the problems of the population explosion are caused mainly by poor people living in poor countries who do not know enough to limit their reproduction. This is not true. The actual number of people in an area is not as important as the effect they have on nature. Developing countries do have an effect on their environment, but it is the populations of richer countries that have a far greater impact on the earth as a whole. The birth of a baby in, for example, Japan, imposes more than a hundred times the amount of stress on the world's resources as a baby in India. Most people in India do not grow up to own cars or air-conditioners—nor do they eat the huge amount of meat and fish that the Japanese child does. Their life-styles do not require vast quantities of minerals and energy. Also, they are aware of the requirements of the land around them and try to put something back into nature to replace what they take out. For example, tropical forests are known to be essential to the balance of nature yet we are destroying them at an incredible rate. They are being cleared not to benefit the natives of that country, but to satisfy the needs of richer countries. Central American forests are being destroyed for pastureland to make pet food in the United States cheaper; in Papua New Guinea, forests are destroyed to supply cheaper cardboard packaging for Japanese electronic products; in Burma and Thailand, forests have been destroyed to produce more attractive furniture in Singapore and Japan. Therefore, a rich person living thousands of miles away may cause more tropical forest destruction than a poor person living in the forest itself. In short then, it is everybody's duty to safeguard the future of mankind-not only through population control, but by being more aware of the effect his actions have on nature. Nature is both fragile and powerful. It is very easily destroyed; on the other hand, it can so easily destroy its most aggressive enemy—man.