单选题According to the passage, “the Englishman” most probably refers to

单选题TIME B. It's the advertising edition of TIME Magazine directed exclusively to businessmen.A. not onlyB. onlyC. professionallyD. frankly

单选题They converted the spare bedroom into an office.

单选题The union representative put across her argument very effectively.

单选题Shark Attack! Craig Rogers was sitting on his surfboard, scanning the distance for his next wave, when his board suddenly stopped moving. He looked down and was terrified to see a great white shark biting the front of his board. "I could have touched its eye with my elbow," says Craig. The shark had surfaced so quietly that he hadn"t heard a thing. In his horror and confusion, he waved his arms and accidentally cut two of his fingers on the shark"s teeth. He then slid off the opposite side of his surfboard into the water. Then, with Craig in the water and blood flowing from his fingers, the five-meter-long shark simply swam away, disappearing into the water below. Although sharks are often categorized as killers that hunt and eat as many humans as they can, this is factually inaccurate. Sharks very rarely kill humans. A person has a greater chance of being struck by lightning or drowning in a bath than of being killed by a shark. Only 74 people have been reported killed by great whites in the last century. But great white sharks can reach six meters in length and weigh 2,200 kilograms or more. With frightening jaws that can hold up to 3,000 teeth arranged in several rows, they could very easily kill and eat a helpless human in the water. Why is it, then, that most people survive attacks by great whites? Shark researchers are trying to comprehend the reasons that allow people to escape without being eaten. The most common explanation is that great whites don"t see well. It has been thought that they mistake people for the seals or sea lions which make up a large part of their diet. There is reason to doubt this, however. Recent information shows that great whites can actually see very well. Also, when attacking seals, great whites shoot up to the surface and bite with great force. When approaching humans, however, they most often move in slowly and bite less hard. They soon discover that humans are not a high-fat meal. "They spit us out because we"re too bony," says Aidan Martin, director of Reef Quest Center for Shark Research. Shark researchers like Martin hypothesize that great whites are actually curious animals that like to investigate things. It"s possible that they use their bite not only to kill and eat, but also to gather information. Although such an experience is unlucky for people like Craig Rogers, when sharks bite surfboards or other objects or people, they are likely just trying to learn what they are.

单选题The only thing ______ really matters to the parents is how soon their children can return homeA. whatB. thatC. whichD. this

单选题He was said to have been Uremoved/U from the position of manager for a recent conflict with an important customer.

单选题 阅读下面这篇短文，短文后列出7个句子，请根据短文的内容对每个句子做出判断。 There are some steps you can take yourself to avoid catching a cold. Contrary to popular belief, colds are not caused by exposure to severe weather. Colds are caused by viruses(病毒)harbored in the body, and you' re better off out on the ski slopes or even waiting for the bus on a snowy day than you are in a toasty warm room, surrounded by friends, co-workers, or fellow students, who just may be passing the virus around. If you feel a chill when you're coming down with a cold, you're already sick. A chill is an early symptom: It's the cold that caused the chill, not the other way around. While the virus can spread through droplets propelled into the air when a cold-sufferer coughs or sneezes, surprisingly, this is not the most common route of transmission. Numerous studies have now shown that the overwhelming majority of colds are "caught" by hand contact. A cold-sufferer rubs her nose, thereby transferring the virus to her hand. Then a friend comes to visit. "Don't kiss me," she cautions, so the friend steps back and presses her hand. The friend then wipes her own nose or eye--and several days later is stricken with a cold. Or parents pick up their child's discarded(丢弃了的)tissues and carefully throw them away, but fail to wash their hands afterward. Cold viruses also can be transferred to objects--telephones, towels, plates--and remain infections for up to three hours. Frequent hand-washing--on the part of the cold-sufferer as well as other members of the household--will minimize the spread of viruses in this way.

单选题Can you make sure ______ Alice had put the gold ring?A. thatB. whereC. whatD. how

单选题The courageous boy has been the subject of massive media coverage

单选题She finally abandoned her original method and took a new approach.A. supportedB. promotedC. gave upD. tired of

单选题During the past ten years there have been dramatic changes in the international situation.

单选题He impressed all his colleagues as a vigorous man in the prime of his career.

单选题Alexander is the first patient at the newly opened RESTART, a video - game and Internet addiction recovery program in Fall City, Wash. , about 30 miles east of Seattle. It's hard to imagine Alexander, now merrily giving a tour of the woodsy facility, glued to a computer game for more than 16 hours a day, but he says, "It was pretty much all I was doing when 1 was in college. " Where is RESTART located?A. In WashingtonD. CB. In Fall CityC. In SeattleD. In Manhattan.

单选题Don"t omit this paragraph when you write your report.

单选题The town is famous for its magnificent buildings

单选题Please be careful when you are drinking coffee in case you smudge the new carpet.

单选题His claims seem credible to many people. A. workable B. convincing C. practical D. reliable

单选题Is Your Child's Stomach Pain All in His Head? We all know there are times that kids seem to complain (51) a stomach ache to get out of chores or going to school. Don't be so sure that the pain they (52) is all in their minds. We're learning more now about a condition (53) "functional abdominal pain" that is experienced by millions of kids every day. Like many teenagers, Kyle Brust makes it a point to do his homework: as (54) as he gets home. Unlike most, Kyle often did his with a terrible stomach ache. In fact, the (55) often started while he was at school, but getting help there was getting harder. "Some of my teachers wouldn't let me go, because I'd asked so many times before and they thought I was trying to get out of (56) ." says Kyle. Kyle's mom Marilyn says she couldn't blame the (57) . After all, she'd taken him to the doctor several times herself, and even they couldn't find anything (58) . "You know, you're running the tests and nothing's coming up. So, is it in his head, is he just an extremely stressful child? It's just frustrating (59) we're not finding any answers. " says Marilyn. It turns out Kyle was suffering from a condition known (60) functional abdominal pain, that affects as many as one out of every ten kids in this country. Even (61) the cause of the pain may not be obvious, there are real consequences. "It really does hurt, and these kids really do suffer. " says Dr. Campo, MD at Nationwide Children's Hospital. To help (62) , Campo is looking into a new approach. He's conducting clinical trials of an antidepressant that changes the way the body handles a chemical called serotonin. In a preliminary study, Dr. Campo found that in about eight out of ten (63) , the drug normally used to treat emotional pain worked to ease the pain in the (64) . "We think about it as being important in anxiety and depression and that's all quite true, but what's really interesting is that 95% of our body's serotonin is in our gut. " says Campo. Campo believes these kids have extremely sensitive intestines, and controlling the effects of serotonin may (65) ease the pain. It seemed to .work for Kyle, who is now completely pain free for the first time in years.

单选题 The prospects for treating cystic fibrosis by gene therapy are looking brighter following successful tests with a safer type of "shuttle"(短程梭运输工具)for ferrying(运送) replacement genes into a patient's lungs. During the tests, a British-led research team inserted healthy copies of the cystic fibrosis(囊性纤维变性) gene into cells lining sufferers' noses with the aid of microscopic droplets(水滴,飞沫) of fat called liposomes Other groups that have attempted to correct the genetic defect that causes cystic fibrosis have used viruses as "vectors" (媒介) to carry the healthy gene into target cells. Unfortunately, viruses can also cause inflammation in the lungs, an undesirable side effect in CF patients, whose lungs are already diseased. The new method for introducing corrective genes into the lungs of CF patients promises to be much safer. Cystic fibrosis is caused by defects in a gene called CFTR, which plays a part in the transport of chloride ions(离子) out of the cells lining the lungs, airways and gut. Defects in this gene mean that patients have difficulty expelling mucus(黏液) and inhaled (吸入) microorganisms from their lungs. As a result, they are very susceptible to lung infections, and usually die at around 30 years old. As an alternative to the viral vector, the researchers, linked loops (环)of DNA containing healthy copied of the CFTR gene to microscopic liposomes. When the liposomes come in contact with a cell, they fuse(融合) with its outer membrane, and release the DNA into the cell's interior. To test the system, the team sprayed the liposomes into the noses of volunteers with cystic fibrosis. "The cells lining the nose are very similar to those lining the lung," explains David Porteous of the human genetics group in Edinburgh. But the ceils in the nose are easier to monitor, and the risks are lower if any nasal (鼻的)cells are damaged. In the event(结果,到头来), none of the volunteers suffered any unpleasant side effects. And a single spraying partially corrected the cystic fibrosis defect. The researchers assessed the effectiveness of the treatment by measuring the voltage(电压,伏特) across the layer of cells lining the nose. This voltage is higher in cystic fibrosis sufferers than in healthy people. A single spraying reduced this difference by around 20 per cent. The re-searchers reported that the effect lasted for up to a week. The British researchers have yet to test their spray in the lungs, but are confident that the liposomes will not cause inflammation. The question, however, is how effective the shuttle system is. In the nose, the researchers had to add more copies of the healthy CFTR gene to match the performance of the adenovirus. This is because adenoviruses carry genes directly to the cell' s nucleus, ensuring that the instructions they carry are read. Genes carried by liposomes are only guaranteed a ride into the cell's cytoplasm, and fewer will find their way to the nucleus. Many will be broken down by the cell's waste disposal system before they get there. Bob Williamson, who heads the group at St. Mary's Hospital, says this will require much more efficient vectors. "People in 10 to 15 years will laugh at the crudity of the liposomes and viruses that we're using today, " he says. The aim is to make customized vectors which combine the best aspects of both systems, and include other genetic sequences to ensure that the information carried by the healthy CFTR gene is used by the target cells lining the lungs.