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单选题People who do not sleep enough tend to become irritable. A. easily annoyed B. ill C. weary D. stiff and sore
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单选题Are you {{U}}positive{{/U}} that there's been no mistake? A. rational B. reasonable C. certain D. bound
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单选题Today, many countries are
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单选题A red flag was placed there as a token of danger.
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单选题The room is dim and quiet.
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单选题Migrant Workers In the past twenty years, there has been an increasing tendency for workers to move from one country to another. 1 some newly independent countries have understandably restricted most jobs to local people, others have attracted and welcomed migrant workers. This is particularly the case in the Middle East, 2 increased oil incomes have enabled many countries to 3 outsiders to improve local facilities. 4 the Middle East has attracted oil-workers from the USA and Europe. It has brought in construction workers and technicians from many countries, 5 South Korea and Japan. In view of the difficult living and working conditions in the Middle East, it is not 6 that the pay is high to attract suitable workers. Many engineers and technicians can earn at least 7 money in the Middle East as they can in their own country, and this is a major attraction. An allied benefit is the low taxation or complete lack of it. This increases the net amount of pay received by visiting workers and is very popular with them. Sometimes a disadvantage has a compensating advantage. 8 , the difficult living conditions often lead to increased friendship when workers have to depend on each other 9 safety and comfort. 10 , many migrant workers can save large sums of money partly 11 the lack of entertainment facilities. The work is often complex and full of problems but this merely presents greater challenge to engineers who prefer to find solutions 12 problems rather than do routine work in their home country. One major problem which 13 migrant workers in the Middle East is that their jobs are temporary ones. They are nearly always on contract, so it is not easy for them to plan ahead with great confidence. This is to be expected since no country welcomes a large number of foreign workers as permanent residents. 14 , migrant workers accept this disadvantage, along with others, because of the 15 financial benefits which they receive.
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单选题Prolonging Human Life Prolonging human life has increased the size of the human population. Many people alive today would have died of childhood diseases if they had been born 100 years ago. Because more people live longer, there are more people around at any given time. In fact, it is a decrease in death rates, not an increase in birthrates, that has led to the population explosion. Prolonging human life has also increased the dependency load. In all societies, people who are disabled or too young or too old to work are dependent on the rest of society to provide for them. In hunting and gathering cultures, old people who could not keep up might be left behind to die. In times of famine, infants might be allowed to die because they could not survive if their parents starved, whereas if the parents survived they could have another child. In most contemporary societies, people feel a moral obligation to keep people alive whether they can work or not. We have a great many people today who live past the age at which they want to work or are able to work; we also have rules which require people to retire at a certain age. Unless these people were able to save money for their retirement, somebody else must support them. In the United States many retired people live on social security checks which are so little that they must live in near poverty. Older people have more illness than young or middle-aged people; unless they have wealth or private or government insurance, they must often "go on welfare" if they have a serious illness. When older people become senile or too weak and ill to care for themselves, they create grave problems for their families. In the past and in some traditional cultures, they would be eared for at home until they died. Today, with most members of a household working or in school, there is often no one at home who can care for a sick or weak person. To meet this need, a great many nursing homes and convalescent hospitals have been built. These are often profit-making organizations, although some are sponsored by religious and other nonprofit groups. While a few of these institutions are good, most of them are simply "dumping grounds" for the dying in which "care" is given by poorly paid, overworked, and underskilled personnel.
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单选题It is ridiculous to dispute about such things.A. frighteningB. shockingC. foolishD. amusing
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单选题The performance at the concert is really miraculous.A. humorousB. dangerousC. hazardousD. wonderful
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单选题{{B}}第三篇{{/B}} {{B}} Online Cancer Chat with a Safety Net{{/B}} Cancer Research UK has launched an online chat forum for cancer patients to swap stories and share experiences on how to cope with such a devastating disease. But Cancer Chat is a forum with a difference: it has an information safety net. This means that a Cancer Research UK team will keep a watching brief to ensure that patients are not subjected to rogue "cancer cures" or scientifically unsound information. Anyone can have access to the messages posted on Cancer Chat but if people wish to post a message they will need to register. And Rebekah Gibbs, cancer patient and star of TV's Casualty has pledged her support for the new project. "I think Cancer Chat is a brilliant idea," she said. "I have written a public diary about what I went through with breast cancer and I have had such a heart-warming response from other people going through the same thing. "The idea of a Cancer Chat forum means you can share information about treatment and side effects and you can really open up about your feelings online in a way that can be difficult when talking to close friends and family. And with Cancer Research UK monitoring the forum people can be reassured about the quality of information being exchanged." Cancer Chat will also encourage its users to check out any cancer questions on its CancerHelp UK website which is specially designed to give patients and their families 6,000 pages of up-to-date information that is easy to understand and explains a wide range of treatments for different types of cancer and gives details of clinical trials. There is also a UK database of cancer clinical trials. The award-winning website attracts around one million visitors a month and Cancer Research UK hopes that some of these visitors will also want to post comments on the Cancer Chat forum. For those who do not have access to computers and have questions about cancer, the charity's team of cancer information nurses are available during office hours to talk over patients' concerns on the phone.
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单选题He was kept in appalling conditions in prison.
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单选题A dream usually consists of visual images that tell a story. A. graphics B. vapors C. pictures D. fantasies
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单选题
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单选题Americans had been chewing gum since before Thomas Adams was born.
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单选题 阅读下面这篇短文,短文后列出了7个句子,请根据短文的内容对每个句子做出判断。 {{B}}Using HIV Virus to Cure Cancer{{/B}} Scientists are planning to use human immunodeficiency (免疫缺陷) virus (HIV), one of mankind's most feared viruses, as a carrier of genes which can fight cancer and a range of diseases that cannot be cured. The experts say HIV has an almost perfect ability to avoid the body's immune (免疫的) defenses, making it ideal for carrying replacement genes into patients' bodies, according to the Observer. A team at the California-based Salk Institute, one of the world's leading research centers on biological sciences, has created a special new breed of HIV and has started negotiations with the U.S. Food and Drug Administration (FDA) to begin clinical gene therapy (治疗) trials this year. The first trials are expected to involve patients suffering from cancers that cannot be cured by surgery although project leader Professor Inder Verma said the HIV technique would have "far wider applications". The plan remains very likely to cause controversy since it involves making use of a virus which has caused more than 22 million deaths around the world in the past two decades. Verma said that the idea of using HIV for a beneficial purpose was "shocking" but the fierce nature of HIV had disappeared by having all six of the potentially deadly genes removed. Illnesses such as various cancers are caused when a gene in a patient's body fails to work properly. In the past two years, breakthroughs in genetics (遗传学) have led gene therapy scientists to try and replace the genes that do not function normally. Unfortunately, the body's immune defenses have been known to attack the modified genes and make them lose their effects before they can start their task and progress in the field has been held up by the lack of a suitable carrier. The HIV virus has the ability to escape from, and then destroy, the immune defense cells designed to protect our bodies and this makes it attractive to scientists as a way of secretly conveying replacement genes into patients' bodies.
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单选题The room is {{U}}dim{{/U}} and quiet. A. tiny B. pleasant C. dark D. agreeable
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单选题I didn't Uimmediately/U realize that how serious the situation was.
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单选题 阅读下面的短文,文中有15处空白,每处空白给出了4个选项,请根据短文的内容从4个选项中选择1个最佳答案。 {{B}}Men Too May Suffer from Domestic Violence{{/B}} Nearly three in 10 men have experienced violence at the hands of an intimate partner during their lifetimes, according to one of the few studies to look{{U}} (51) {{/U}}domestic violence and health among men. "Many men actually do experience domestic violence, although we don't hear about it{{U}} (52) {{/U}}," Dr. Robert J. Reid of the University of Washington in Seattle, one of the study's authors, told Reuters Health. "They often don't tell{{U}} (53) {{/U}}we don't ask. We want to get the message out to men who{{U}} (54) {{/U}}experience domestic violence that they are not alone and there are resources available to{{U}} (55) {{/U}}." The researchers asked study participants about physical abuse and non-physical{{U}} (56) {{/U}}such as threats that made them{{U}} (57) {{/U}}for their safety, controlling behavior (for example, being told who they could associate with and where they could go), and constant name-calling. Among men 18 to 54 years old, 14.2 percent said they had experienced intimate partner{{U}} (58) {{/U}}in the past five years, while 6.1 percent reported domestic violence in the previous year. Rates were lower for men 55 and{{U}} (59) {{/U}}, with 5.3 percent reporting violence in the past five years and 2.4 percent having experienced it in the past 12 months. Overall, 30. 5 percent of men younger than 55 and 26.5 percent of older men said they had been victims of{{U}} (60) {{/U}}violence at some point in their lives. About half of the violence the men{{U}} (61) {{/U}}was physical. However, the physical violence men reported wasn't as harsh as{{U}} (62) {{/U}}suffered by women in a previous study; 20 percent to 40 percent of the men rated it as severe, compared to 61 percent of{{U}} (63) {{/U}}. Men who reported experiencing domestic violence had more emotional and mental health problems{{U}} (64) {{/U}}those who had not, especially older men, the{{U}} (65) {{/U}}found.
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单选题Every week the magazine presents the (profile) of a well-known sports personality.A. success B. description C. evidence D. plan
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单选题In a fog everything looks {{U}}vague{{/U}}.
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