阅读材料,回答下面的题目。The New Technology ApplicationOn a more mundane level, third-generation mobile telephones, despite all the delays and the billions squandered on 3G licenses by telecom firms, are still expected to offer consumers high-speed, always on mobile internet access, complete with video, in the next few years.Rapidly proliferating "WiFi" networks already offer wireless access on a local basis. Tiny tracking chips called radio-frequency identification devices are being used as pet passports.Soon they will be small, powerful and cheap enough to be implanted into everything form humans to milkcartons recording and transmitting real-time medical data, or serving as a form of inventory control.Sensors of every kind, including video cameras, should also become much smaller and cheaper.Forrester Research, a technology consultancy, predicts that 14 billion such devices will be connected to the internet by 2005.How rapidly such new technology is introduced will depend on a number of factors the state of the economy, the supply of investment capital and the appetite of consumers for new products or services ! Fortunes will be made and lost many times over.But whatever happens, the power of computing and communications look set to continue to grow, and its price to fall, at a steady rate for the next few decades.That will make it possible, at least in rich countries, to record most human interactions, wherever and whenever they take place, and to store and analyze this ocean of data at low cost.For the sake of argument, this survey will assume that we are heading towards a networked society of ubiquitous, mobile Communication capable of constant monitoring.Whether this arrives in 20,30 or 40 years does not really matter.The point is that the destination seems not merely possible, but probable, so it is not toosoon to ask: What do we want this technology to do?The internet has already thrown up a host of legal and political conundrums, but, these are only a small foretaste of the dilemmas about privacy, security, intellectual property and the nature of government itself that will have to be faced over the coming decades.The debate has already begun. This survey will outline some of main issues, and speculate on the way they are likely to go. Radio-frequency identification devices__________.
回答下面的题目:The American FamilyIn the American family the husband and wife usually share important decision making. When the children are old enough, they take part_________(51). Foreigners are often surprised by the permissiveness of American parents. The old rule that "children should be seen and not heard" is rarely_________(52), and children are often allowed to do what they wish without strict parental_________(53). The father seldom expects his children to obey him_________(54) question, and children are encouraged to be independent_________(55) an early age. Some people believe that American parents carry this freedom_________(56) far. Others think that a strong father image would not_________(57) the American values of equality and independence. Because Americans emphasize the importance of independence, young people are expected to break_________(58) their parental families by the time they have_________(59) their late teens or early twenties. (60), not to do so is often regarded as a failure, a kind of weak dependence.This pattern of independence often results in serious_________(61) for the aging parents of a small family. The average American is expected to live(62) the age of 70. The job-retirement age is _________(63) 65. The children have left home, married, and_________(64) their own households. At least 20 percent of all people over 65 do not have enough retirement incomes. _________(65) the major problem of many elderly couples is not economic. They feel useless and lonely with neither an occupation nor a close family group.
回答下面的题目Kicking the Habit What is a bad habit? The most definition is that it is something that we do regularly, almost without thinking about it, and which has some sort of negative consequence. This consequence could affect those around us, or it could affect us personally. Those who deny having bad habits are probably lying. Bad habits are part of what makes us human. Many early habits, like sucking out thumb, are broken when we are very young. We are either told to stop doing it by our parents, or we consciously or subconsciously observe that others do not have the same habit, and we gradually grow out of it. It is when we intentionally or unintentionally pick up new habits in our later childhood or early adulthood that it becomes a problem. Unless we can break that habit early on, it becomes a part of our life, and becomes "programmed" into our brain. A recent study of human memory suggests that no matter how hard we try to change out habits, it is the old ways that tend to win, especially in situations where we are rushed, stressed or overworked. Habits that we thought we had got rid of can suddenly come back. During the study program, the researchers showed a group of volunteers several pictures, and gave them words to associate with them. They then showed the volunteers the same picture again, and gave them new words to associate with them. A few days later, the volunteers were given a test. The researchers showed them the pictures, and told them to respond with one of the words they had been given for each one. It came as no surprise that their answers were split between the first set of words and second. Two weeks later, they were given the same test again. This time, most of them only gave the first set of words. They appeared to have completely forgotten the second set. The study confirms that the responses we learn first are those that remain strongest over time. We may try to change out ways, but after a while, the response that comes to mind first is usually the first one we learned. The more that response is used, the more automatic it becomes and the harder it becomes to respond in any other way. The study therefore suggests that over time, our bad habits also become automatic, learned behavior. This is not good news for people who pick up bad habits early in life and now want to change or break them. Even when we try to put new, good intentions into practice, those previous learned habits remain stronger in more automatic, unconscious forms of memory.Boys usually develop bad habits when they are very young.
回答下面的题目Kicking the Habit What is a bad habit? The most definition is that it is something that we do regularly, almost without thinking about it, and which has some sort of negative consequence. This consequence could affect those around us, or it could affect us personally. Those who deny having bad habits are probably lying. Bad habits are part of what makes us human. Many early habits, like sucking out thumb, are broken when we are very young. We are either told to stop doing it by our parents, or we consciously or subconsciously observe that others do not have the same habit, and we gradually grow out of it. It is when we intentionally or unintentionally pick up new habits in our later childhood or early adulthood that it becomes a problem. Unless we can break that habit early on, it becomes a part of our life, and becomes "programmed" into our brain. A recent study of human memory suggests that no matter how hard we try to change out habits, it is the old ways that tend to win, especially in situations where we are rushed, stressed or overworked. Habits that we thought we had got rid of can suddenly come back. During the study program, the researchers showed a group of volunteers several pictures, and gave them words to associate with them. They then showed the volunteers the same picture again, and gave them new words to associate with them. A few days later, the volunteers were given a test. The researchers showed them the pictures, and told them to respond with one of the words they had been given for each one. It came as no surprise that their answers were split between the first set of words and second. Two weeks later, they were given the same test again. This time, most of them only gave the first set of words. They appeared to have completely forgotten the second set. The study confirms that the responses we learn first are those that remain strongest over time. We may try to change out ways, but after a while, the response that comes to mind first is usually the first one we learned. The more that response is used, the more automatic it becomes and the harder it becomes to respond in any other way. The study therefore suggests that over time, our bad habits also become automatic, learned behavior. This is not good news for people who pick up bad habits early in life and now want to change or break them. Even when we try to put new, good intentions into practice, those previous learned habits remain stronger in more automatic, unconscious forms of memory.Boys usually develop bad habits when they are very young.
回答下面的题目:Screen TestEvery year millions of women are screened with X-rays to pick up signs of breast cancer.If this happens early ecough, the disease can often be treated successfully.According to a survey published last year, 21 countries have screening programmes.Nine of them, including Australia, Canada, the US and Spain, screen women under 50.But the medical benefit of screening these younger women are controversial, partly because the radiation brings a small risk of inducing cancer.Also, younger women must be given higher doses of X-rays because their breast tissue is denser.Researchers at the Polytechnic University of Valencia analysed the effect of screening more than 160,000 women at 11 local clinics.After estimating the women’s cumulative dose of radiation, they used two models to calculate the number of extra cancers this would cause.The mathematical model recommended by Britain’s National Radiological Protection Board (NRPB) predicted that the screening programme would cause 36 cancers per 100,000 women, 18 of them fatal.The model preferred by the UN Scientific Committee on the Effects of Atomic Radiation led, to a lower figure of 20 cancers.The researchers argue that the level of radiation-induced cancers is “not very significant” compared to the far larger number of cancers that are discovered and treated.The Valencia programme, they say, detects between 300 and 450 cases of breast cancer in every 100,000 women screened.But they point out that the risk of women contracting cancer from radiation could be reduced by between 40 and 80 percent if screening began at 50 instead of 45, because they would be exposed to less radiation.The results of their study, they suggest, could help “optimise the technique” for breast cancer screening.“There is a trade-off between the diagnostic benefits of breast screening and its risks.” admits Michael Clark of the NRPB.But he warns that the study should be interpreted with caution.“On the basis of the current data, for every 10 cancers successfully detected and prevented there is a risk of causing one later in life.That’s why radiation exposure should be minimised in any screening programme.”Paragraph 2_____
根据以下资料,回答下面的题目。Mobile Phones 请在第____处填上正确答案。
根据以下资料,回答下面的题目。 请在第____处填上正确答案。
根据以下资料,回答下面的题目。 According to the passage,one of the reasons why newborns in mountain communities are un—derweight is that their mothers are under—nourished.