单选题(The) Great Wall is (so a) well-known (tourist attraction) that (millions) of people pour in every year.

单选题Smith is to study medicine as soon as he ______ military service. A. will finish B. has finished C. finish D. would finish

单选题I bought three ______ eggs. A. dozen B. dozens C. dozen of D. dozens of

单选题{{B}}Passage 46{{/B}} Although Beethoven could sit down and make up music easily, his really great compositions did not come easily at all. They cost him a great deal of hard work. We know how often he rewrote and corrected his work because his notebooks are still kept in museums and libraries. He always found it hard to satisfy himself. When he was 28, the worst difficulty of all came to him. He began to notice a strange humming(嗡嗡声) in his ears. At first he paid little attention; but it grew worse, and at last he consulted doctors. (46) {{U}}They gave him the worst news any musician could bear: he was gradually going deaf.{{/U}} Beethoven was in despair; he was sure that he was going to die. He went away to the country, to a place called Heiligenstadt, and from there he wrote a long farewell letter to his brothers. He longed to die, and said to death, "Come when you will, I shall meet you bravely." In fact, Beethoven did something braver than dying. He gathered his courage and went on writing music, though he could not hear what he wrote. He wrote his best music, the music we remember him for, after he became deaf. The music he wrote was very different from any that had been composed before.

单选题Spending 50 minutes with a cell phone close to your ear is enough to change brain cell activity in the part of the brain closest to the antenna (天线). But whether that causes any harm is not clear, scientists at the National Institute of Health said at a conference last month, adding that the study will likely not settle concerns of a link between cell phones and brain cancer. "What we showed is glucose (葡萄糖) metabolism (代谢) (a sign of brain activity) increases in the brain in people who were exposed to a cell phone in the area closest to the antenna," said Dr. Nora Volkow of the NIH, whose study was published in the Journal of the American Medical Association (JAMA). The study was meant to examine how the brain reacts to electromagnetic fields caused by wireless phone signals. Volkow said she was surprised that the weak electromagnetic radiation (电磁辐射) from cell phones could affect brain activity, but she said the findings do not shed any light on whether cell phones cause cancer. "This study does not in any way indicate that. What the study does is to show the human brain is sensitive to electromagnetic radiation from cell phone exposures." Use of the devices has increased dramatically since they were introduced in the early 1980s, with about 5 billion cell phones now in use worldwide. Some studies have linked cell phone exposure to an increased risk of brain cancers, but a large study by the World Health Organization did not offer a clear answer to this. Volkow"s team studied 47 people who had their brain examined while a cell phone was turned on for 50 minutes and another while the phone was turned off. While there was no complete change in brain metabolism, they found a 7 percent increase in brain metabolism in the region closest to the cell phone antenna when the phone was on. Experts said the results were interesting, but urged that they be understood with great care. "Although the biological significance, if any, of increased glucose metabolism from too much cell phone exposure is unknown, the results require further investigation," Henry Lai of the University of Washington in the U.S. and Dr. Lennart Hardell of University Hospital in Sweden, wrote in an article in JAMA. "Much has to be done to further investigate and understand these effects," they wrote.

单选题—Is this Mr. White's office, Mary? —Yes, ______.

单选题"Good-bye, Mr. Wang. I"m pleased ______ you."

单选题I was just coming out of the sea after a swim ______ I stepped on a sharp stone and cut my foot.

单选题Fire can help people in many ways. But it can be very dangerous. Fire can heat water, warm houses, give light and cook. But fire can burn things, too. It can burn trees, houses, animals or people. Sometimes big fires can burn forests. Nobody knows for sure how people began to use fire. But there are many interesting stories about the first time a man or a woman started a fire. One story from Australia tells about a man very, very long time ago. He went up to the sun by a rope (绳子)and brought fire down. Today people know bow to make a fire with matches (火柴). Children sometimes like to play with them. But matches can be very dangerous. One match can burn a piece of paper and then it might burn a house. A small fire can become a big fire very fast. Fire kills many people every year. So you must be careful with matches. You should also learn to put out fires. Fires need oxygen (氧气). Without oxygen they will die. Cover a fire with water, sand, or sometimes with your coat. This keeps the air away from a fire and kills it. Be careful with fire, and it will help you. Be careless with fire, and it will burn you.

单选题In Britain, the best season of the year is probably ______ spring. A. later B. latter C. last D. late

单选题It's nearly 4 hours' drive from here, ______ we have to start very early if we want to get back before dark.

单选题M: I want to try on that black pair. W: __________

单选题{{B}}Passage 1{{/B}} In sport the sexes are separate. (76) {{U}}Women and men do not run or swim in the same races. Women are less strong than men. {{/U}}That at least is what people say. Women arc called" the weaker sex" ,or, if men want to please them, "the fair sex". But boys and girls are taught together at schools and universities. There are women who are famous Prime Ministers, scientists and writers. And women live longer than men. A European woman can expect to live until the age of 74, a man only until he is 68．Are women's bodies really weaker? The fastest men can run a mile in 4 minutes. The best women need 4.5 minutes. Women's speeds are always slower than men's, but some facts are surprising. Some of the fastest women swimmers today are teenage girls. One of them swam 400 metres in 4 minutes 21.2 seconds when she was only 16．The first "Tarzan" in films was an Olympic swimmer, Johnny Weissmuller. His fastest 400 metres was 4 minutes 59.1 seconds, which is 37.9 seconds slower than a girl 50 years later! This does not mean that women are catching men up. Conditions are very different now, and sport is much more serious. It is so serious that some women athletes are given hormone(荷尔蒙) injections. At the Olympics a doctor has to check whether the women athletes are really women or not. It seems sad that sport has such problem. Life can be very complicated when there are two separate sexes!

单选题Bob: Do you mind ff I play some music?Lily:________. I'm writing my assignment.

单选题The top of the world is a wonderland. In winter, the temperature often falls to -30℉ and the sun never rises. The ocean is surrounded by frozen ground. There are few people or trees, but to polar bears, the Arctic (北极) is home. Polar bears have thick fur, big paws and other features that make them well prepared for life in their tough environment. In fact, they need the Arctic sea ice for survival. But climate change is causing larger and larger areas of summer sea ice to melt (融化). Experts say that if warming patterns continue, the Arctic could be free of summer sea ice by 2050. That may cause two-thirds of the word"s 20,000 polar bears to be gone by then too. Polar bears can"t survive for long on land. Seals are their main source of food. The only place where polar bears can hunt seals is on the ice. Although these bears are strong swimmers, they are no match for lightning swift seals in the water. A polar bear has brilliantly clever strategies to overcome this disadvantage. In winter the bear waits motionless beside a seal"s breathing hole, which is a narrow tunnel through the ice. Often many hours pass before the seal comes up for air and the bear kills it with a powerful blow of its paw. In summer, the polar bears that live on land eat very little and wait for the sea ice to return. With the sea ice forming later in the year and melting earlier, polar bears do not have enough opportunity to hunt and eat. Less sea ice makes it harder for the bears to catch the seals. The bears must swim longer distances between ice packs (大片浮冰), and they can"t always make it. The ice is also getting thinner. These conditions can cause polar-bear cubs to become separated from their mothers, who provide them with food. Steven Amstrup is the chief scientist of Polar Bear International. The group aims to save the bears and their home. "The more people who see polar bears and understand their difficult situations, the better the chance we"ll alter our warming path in time to save them," he says.

单选题He ______ somebody creeping into the house through the open window last night.

单选题George: You're not looking very cheerful. ______? Joe: Oh, nothing in particular. I'm just a bit fed up. George: With your job? Joe: Yes, that's right.

单选题A series of attempts _____, we came to a wonderful solution to the problem.