单选题The city has decided to do away with all the old buildings in its center.

单选题The news will horrify everyone.

单选题Reading for Pleasure The first thing I want to insist on is that reading should be enjoyable. Of course, there are many books that we all have to read, either to pass examinations or to acquire information, from which it is impossible to extract enjoyment. We are reading them for instruction, and the best we can hope is that our need for it will enable us to get through them without tedium. Such books we read unwillingly rather than willingly. But that is not the sort of reading I have in mind. The books I shall mention in due course will help you neither to get a degree nor to earn your living, they will not teach you to sail a boat or run a stopped motor, but they will help you to live more fully. However, they cannot do unless you enjoy reading them. Every man is his own best critic. Whatever the learned say about a book, however unanimous they are in their praise of it, unless it interests you, it is no business of yours. Don't forget that critics often make mistakes; the history of criticism is full of the serious mistakes some of them have made, and you are the final judge of the value to you of the book you are reading. This, of course, applies to the books I am going to recommend to your attention. We are none of us exactly like everyone else, only rather like, and it would be unreasonable to suppose that the books that have meant a great deal to me should be precisely those that will mean a great deal to you. If any of you who are not interested in the books I introduce to you, just put them down; they will be of no service to you if you do not enjoy them. No one is under an obligation to read poetry, fiction or literature. He must read them for pleasure, and who can claim that what pleases one man must necessarily please another?

单选题Most sound vibrations arrive at the eardrum by way of the auditory canal.

单选题The people who speak Esperanto(世界语) hope that the language someday will become the international language for trade, science, and diplomacy.A. commonB. uniqueC. officialD. well-known

单选题Education of Students with Vision Impairments This is specially designed education for children who are either partially sighted or blind. Vision impairments are diagnosed by medical doctors who examine the physical structures in the eye and evaluate the child's ability to see shapes of different sizes at various distances. In the United States, approximately 12 out of 1,000 children receive some form of special education because of visual impairments. Partially sighted children may use a variety of adaptive aids to see more clearly and to read printed text. These aids include magnifiers, which may be attached to eyeglasses; electronic systems for enlarging print and making it easier to see; and large-print books. Blind children usually are taught to read Braille, a system of raised dots embossed on paper and read by touch. In the past, turning conventional books into pages of Braille was very time-consuming, and the large books required enormous storage areas. However, most Braille texts are now done electronically. Many students read paperless Braille with the aid of machines that mechanically raise the dots in a small panel as the reader progresses through the text. Because Braille cannot be read very rapidly, many blind students prefer to listen to books being read on tapes. Some students also use reading machines equipped with cameras that scan lines of print, which computers then convert to synthesized speech. Many blind and partially sighted children receive orientation and mobility training as a part of their education. Specialists teach them how to travel independently in their schools and communities, often with an aid, such as a cane. Most children with vision impairments are educated in schools within their communities. Vision specialists may provide special materials and equipment, help teachers and classmates understand the children's condition, and possibly provide additional instruction. The specialists may also teach partially sighted children how to use their remaining vision more effectively and instruct them in the use of adaptive aids. Some children with vision impairments attend special schools designed to meet their particular needs. Like boarding schools, these schools often provide residential services as well as educational programs. They also have specially designed facilities, which may not be found in neighborhood schools, for blind children to participate in athletics and other activities. The education of many children with vision impairments is further complicated by their having other disabilities, such as physical disabilities, developmental impairments, or hearing loss.

单选题 Old And Active It is well-known that life expectancy is longer in Japan than in most other countries. A {{U}} {{U}} 1 {{/U}} {{/U}}report also shows that Japan has the longest health expectancy in the world. A healthy long life is the result of the {{U}} {{U}} 2 {{/U}} {{/U}}in social environment. Scientists are trying to work {{U}} {{U}} 3 {{/U}} {{/U}}exactly what keeps elderly Japanese people so healthy, and whether there is a lesson to be {{U}} {{U}} 4 {{/U}} {{/U}}from their lifestyles for the rest of us. Should we {{U}} {{U}} 5 {{/U}} {{/U}}any changes to our eating habits, for instance, or go jogging each day before breakfast? Is there some secret {{U}} {{U}} 6 {{/U}} {{/U}}in the Japanese diet that is particularly {{U}} {{U}} 7 {{/U}} {{/U}}to the human body? Another factor {{U}} {{U}} 8 {{/U}} {{/U}}to the rapid population aging in Japan is a decline in birthrate. Although longer life should be celebrated, it is {{U}} {{U}} 9 {{/U}} {{/U}}considered a social problem. The number of older people had {{U}} {{U}} 10 {{/U}} {{/U}}in the last half century and that has increased pension and medical costs. The country could soon be {{U}} {{U}} 11 {{/U}} {{/U}}an economic problem, if there are so many old people to be looked {{U}} {{U}} 12 {{/U}} {{/U}}, and relatively few younger people working and paying taxes to support them. {{U}} {{U}} 13 {{/U}} {{/U}}the retirement age from 65 to 70 could be one solution to the problem. Work can give the elderly a {{U}} {{U}} 14 {{/U}} {{/U}}of responsibility and mission in life. It's important that the elderly play active {{U}} {{U}} 15 {{/U}} {{/U}}in the society and live in harmony with all generations.

单选题hope you can submit you term papers before the deadline.A. hand inB. hand outC. hand onD. handback

单选题Sleeplessness Insomnia or sleeplessness is a common complaint of women as they enter into menopause. Insomnia means having trouble falling asleep or staying asleep or the feeling that your sleep was not adequate for you. For women who are having night sweats, their sleep is broken by frequent awakening and therefore not refreshing. Generally once the night sweats are controlled a normal sleep pattern returns. If it doesn't it may be, or have become chronic insomnia. How do you know? If you suffer from insomnia every night or most nights for a period of one month then you have chronic insomnia. If you're not having night sweats then it's time to look for other causes of sleeplessness. Depression and anxiety disorders are the most common causes of chronic insomnia. If you feel depressed you need to be checked by a qualified health care provider. Movement disorders such as restless leg syndrome are second on the list of insomnia for them, there are new medicines that may help. Other common causes are shift working, and pain. In up to 30% of people with chronic insomnia no cause can be identified. Medical treatment of these people has generally been with sleeping pills. It is estimated that 25% of the adult population in America took some type of medicines for sleep last year. It is generally agreed that sleeping pills should only be in the lowest dose and for the shortest possible time. Sleep hygiene is directed at changing bad sleep habits. The recommendations are: —Go to bed only when sleepy.—Do not wait up to a specilized time.—Avoid caffeine and alcohol in the evening, etc.

单选题The doctors have abandoned the hope to rescue the old man.

单选题A Desert Between Paul and Clara Paul had long promised to marry Clara. But at thirty?thee he met and married Alice. Clara was driven mad. Paul was taken to court. The judge ordered him to pay Clara$600 because of the broken promise. Paul had to borrow the money from a moneylender. He agreed to pay back$5 a month—for twenty years. His wages at the time were $16 a month. Paul and Alice were poor but not unhappy. They had little enough food, certainly, even before the children began to arrive. Each month Paul paid$5 to the moneylender. He worked hard, never taking a holiday. In time, there were seven mouths to feed. Illness was always with them. It grew serious when the oldest child was eight. The years of hunger weakened the family, because each month Paul paid$5. The details of the sickness were ugly, but the result was this：after twelve years of family life, Paul was alone in the world. He lived alone. except for memories. Work was not now a god for him：it was a pain-killer. Each month he paid, and in time the twenty years ended. From that moment his wages were his own. One day, It was a holiday went to the seaside. He sat down on a seat by the sea. A middle. aged woman came and sat down near him. They recognized each other at once. The woman said. "The$600 has been in the bank since the day it was paid to me. It is now $6, 000, and I have kept it for you. Will you let me share it with you?” "No, ”said Paul, gently. "Each thousand is a lost life in a desert between us. It can never bring any happiness. ”

单选题The workers finally called off the strikes.______

单选题What Is Cancer? Cancer is actually a group of many related diseases that all have to do with cells. Cells are the very small units that make up all 1 things, including the human body. There are billions of cells 2 each person"s body. Cancer happens when cells that are not normal grow 3 spread very fast. Normal body cells grow and divide and know when to stop growing. Over time, they also die. 4 these normal cells, cancer cells just continue to grow and divide out of control and don"t die. Cancer cells usually group together to form tumors (肿瘤). A growing tumor becomes a lump of cancer cells 5 can destroy the normal cells around the 6 and damage the body"s healthy tissues. This can make someone very 7 . Sometimes cancer cells break away from the original tumor and travel to other areas of the 8 , where they keep growing and can go on to form new tumors. This is how cancer 9 . The spread of a tumor to a new place in the body is 10 metastasis (转移). People with cancer may feel pretty sick at times—but cell usually still do lots of normal things. 11 they are very sick, kids and teenagers with cancer may still be able to go to school. They may be tired or bruise (出现青肿) easily, but they 12 sometimes go to camp, movies, and sleepover (在外过夜的) parties. People with cancer still like the same things they did 13 they got sick. Cancer in kids is rare—but today, many kids who do get cancer go on living normal lives. The number of kids who beat cancer goes 14 every year because of new cancer treatments. So a lot of kids with cancer will some day drive cars, go to college, have careers, and even get 15 and have families of their own.

单选题The unemployment rate may rise slightly.A. a lotB. a littleC. quicklyD. sharply

单选题Cell Phone Lets Your Secret Out Your cell phone holds secrets about you. Besides the names and (51) that you've programmed into it, traces of your DNA linger (逗留) on the device, according to a new study. DNA is genetic material that (52) in every cell. Like your fingerprint, your DNA is unique to you (53) you have an identical twin. Scientists today routinely analyze DNA in blood, saliva (唾液), or hair left (54) at the scene of a crime. The results often help detectives identify (55) and their victims. Your cell phone can reveal more about you (56) you might think. Meghan J. McFadden, a scientist at McMaster University in Hamilton, Ontario, heard about a crime in which the suspect bled onto a cell phone and later dropped the (57) . This made her wonder whether traces of DNA lingered on cell phones even when no blood was involved. (58) , she and colleague Margaret Wallace of the City University of New York analyzed the flip-open phones of 10 volunteers. They used swabs (药签) to collect (59) traces of the users from two parts of the phone: the outside, where the user holds it, and the (60) , which is placed at the user's ear. The scientists scrubbed the phones using a solution made mostly (61) alcohol. The aim of washing was to remove all detectable traces of DNA. The owners got their phones (62) for another week. Then the researchers collected the phones and repeated the swabbing of each phone once more. The scientists discovered DNA that (63) to the phone's speaker on each of the phones. Better samples were collected from the outside of each phone, but those swabs also picked up DNA that belonged to other people who had apparently also handled the phone. (64) , DNA showed up even in swabs that were taken immediately after the phones were scrubbed (擦洗). That suggests that washing won't remove all traces of evidence from a criminal's device. So cell phones can now be added to the (65) of clues that can decide a crime-scene investigation.

单选题3. Diabetes (糖尿病) Most of the food we eat is turned into glucose (葡萄糖) for our bodies to use for energy. The pancreas (胰腺), an organ near the stomach, makes a hormone called insulin (胰岛素) to help glucose get into your body cells. When you have diabetes, your body either doesn' t make enough insulin or can' t use its own insulin well. This problem causes glucose to build up in your blood. You may recall having some of these signs before you found out you had diabetes: * Being very thirsty. * Urinating (小便) a lot - often at night. * Having unclear vision from time to time. * Feeling very tired much of the time. * Losing weight without trying. * Having very dry skin. * Having sores that are slow to heal. * Getting more infections than usual. * Vomiting. Two main types of diabetes are Type 1 and Type 2. Another type of diabetes appears during pregnancy in some women. It's called gestational (妊娠) diabetes. One out of ten people with diabetes has Type 1 diabetes~ These people usually find out they have diabetes when they are children or young adults. The pancreas of a person with Type 1 makes little or no insulin. People with Type 1 diabetes must inject insulin every day to live. Most people with diabetes have Type 2 diabetes. The pancreas of people with such diabetes keeps making insulin for some time, but the body can' t use it well. Most people with Type 2 find out about their diabetes after age 30 or 40. Some risk factors which make people more likely to get Type 2 diabetes are: * A family history of diabetes. * Lack of exercise. * Weighing too much. Diabetes can hurt your eyes, your kidneys, and your nerves. It can lead to problems with the blood circulation in your body. Even your teeth and gums (齿龈) can be harmed. And diabetes in pregnancy can cause special problems.

单选题Not surprisingly, many of the non - surgical procedures are offered at hotel spas. The Leading Hotels of the World, a luxury hospitality organization representing more than 450 hotels, resorts, and spas, has the widest range of alternatives in a variety of Countries. The Hotel Carlsbad Plaza in the Czech Republic offers cryotherapy, where guests, mainly locals, stay for several minutes in a room where the temperature is below freezing. The goal is to stimulate free - flowing collagen, the main hormone responsible for a silky- smooth complexion, which is plentiful in youth but fades with age. Locals also can't get enough of the dry carbon -dioxide bath, which wraps the body in a plastic bag filled with the natural gas, reducing swelling and allergic reactions, and healing any scars. At the Terme di Saturnia Spa&Golf Resort in Maremma, Italy, clients can try Isophoresis, all alternative to liposuction (吸脂法) that uses ultrasound to force vitamins anti plant extracts below the skin to break down fat deposits. They dissolve into the bloodstream and areeliminated through the bowels and kidneys. The non- surgical procedures are conductedA. at local hospitals.B. at hotel spas.C. at beauty saloons.D. at grand hotels.

单选题Staying Active in Old Age Keeps People Mobile People over 70 who aren"t active are more likely to develop problems walking or climbing stairs within a few years, according to a new study. These findings suggest that it"s very important to stay 1 in old age, study author Dr. Mar-jolein Visser told Reuters Health. "Physical activity in old age is as important 2 taking your medications (药物)," Visser noted. "You do not need to join an expensive, fancy sports club with high-tech (高科技的) equipment. Your body will already 3 from regular walking. " Visser explained that 4 active helps prevent people from becoming breathless during simple activities, increase muscle mass and strength, and maintain the balance people need to walk up stairs, for instance. To investigate how important exercise is to older adults, Visser"s team interviewed 3,075 men and 5 between the ages of 70 and 79, all of whom said they had no problems walking one-quarter of a mile or climbing 6 . The investigators followed the subjects for 4-1/2 years, noting who developed problems 7 and climbing stairs. During the study,34 percent of men and 47 8 of women said they began to struggle with walking and climbing stairs. People 9 were inactive were twice as likely to report these problems as people who said they got regular exercise. People who didn"t exercise but had active lifestyles appeared to be at a somewhat higher risk of developing 10 walking and climbing stairs, relative to people who exercised 11 . Still, leading an active lifestyle appeared to protect people 12 problems better than being generally inactive, the researchers report in the Journal of the American Geriatrics (老年医学) Society. Among people who were generally inactive, 13 who walked even a little bit—such as brisk (轻快地) walking for a little over an hour per week—were at a lower 14 of mobility (可动性) problems. "If you do not like to exercise or you cannot exercise 15 of serious health problems or functional limitations, do try to be as active as possible," Visser advised.

单选题This mail I wrote to my mom was delivered this morning.

单选题The reason for their unusual behavior remains a puzzle .