填空题(The age of) a geological sample can (be estimated) from the ratio of radioactive to nonradioaetive carbon (present) in the object (is examined). A. The age of B. be estimated C. present D. is examined

填空题Like thousands of parents across Britain, I have been scanning the skies with some nervousness this week. My son and daughter are praying for the snow—and the school closures-to continue. And I' m praying for slush. At a time when people are worried enough about keeping their jobs, the cost of school closure is immense. Parents unable to secure emergency childcare have no choice but to stay off work themselves. (71) The Federation of Small Businesses reckons that by the end of the week our trembling economy will have suffered losses worth some ￡3.5bn. (72) Parenting websites abound with childhood memories of brave infants, battling their way to school in the Big Snow of the 1960s and 1970s and angry demands have been made for school staff to show courage and set an example. According to Margaret Morrissey of the Parents Outloud campaign group, "We are giving children the message that when things get difficult you should stay at home and have fun. (73) " I dare say I could have kept my pair indoors on Monday, reciting time tables instead of hurtling downhill on an offcut of laminate flooring, but it's not the effect on their characters I'm most concerned about. (74) Back in the 1960s, local schools were largely staffed by local teachers. Today, particularly in cities where property prices long ago outstripped the wages of public sector workers, teachers are frequently travelling vast distances to get to school. If the transport system grinds to a halt, as it has across Britain this week, there's not a whole lot teacher, or dinner ladies, or cleaners, or any other workers on whom the smooth running of our schools depend. Put bluntly, it's not the teachers who were short of grit (勇气，砂砾) this week, it was the roads. (75) There are lessons that cannot be learned at school. Given the weather forecast, I call that fortunate. A. Then, when they keep taking sick days from work when they grow up, we wonder why. B. It's natural to look for the weak link in this chain of disaster and, not unusually, it's teachers who are being criticized. C. This translates all too quickly into orders unfulfilled and contracts prejudiced. D. Quite frankly, I don't blame thousands of teachers eagerly taking a couple of days off when faced in front by mob of badly behaved, obese and foul-mouthed children. E. For the want of some sand for the roads, ￡3.5bn was lost. F. And it seems unfair of impose our comfortable, schoolroom nostalgia on a profession facing peculiar contemporary challenges.

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填空题WhoismostlikelytogethookedontheInternet?

填空题Malnutrition during weaning age--when breast milk is being replaced by semisolid foods--is highly prevalent in children of poor households in many developing countries. While the etiology (病因学) is complex and multifactorial, the immediate causes are recognized as feeding at less than adequate levels for child growth and development, and recurrent infections, including diarrhea, resulting mainly from ingestion of contaminated foods. As a result, many young children, particularly between six months to two years of age, experience weight loss and impaired growth and development. Studies by investigators in various countries have concentrated on traditional food preparation methods and have resulted in offering cheap and practical answers to these problems based on familiar, indigenous and culturally acceptable home processing practices. Two such answers have arisen. Firstly, cereal fermentation is used for reducing the risk of contamination under the existing inappropriate conditions for food preparation and storage in many households. Secondly, a tiny amount of sprouted grains flour is used in preparation of weaning foods as a magic way to lessen the viscosity without decreasing energy density. A method to eliminate pathogenic (致病的) bacteria and inhibit their growth during storage of weaning preparations can benefit nutrition and health in young children considerably. Use of fermented foods for feeding children of weaning age appears to be an effective solution. Fermented foods have lower levels of diarrhoeal germ contamination, they are suitable for child feeding, and can be safely stored for much longer periods of time than fresh foods. The practice has been a traditional way of food preservation in many parts of the world. The antimicrobial properties of fermented foods and their relative higher safety--documented since the early 1900s--have been indicated in a number of studies. In Ghana, it is common to ferment maize dough before cooking it as porridge. In Kenya, cerealbased porridge and milk are traditionally fermented. Preserving milk in the form of yogurt has been known to many households living in hot climate. What are the underlying mechanisms by which fermentation processes help to prevent or reduce contamination? A possible answer suggests that during the fermentation process foods become more acid. This explains why diarrheacausing bacteria are not able to grow in fermented foods as rapidly as in unfermented ones. It is also hypothesized that some of the germs present in the foods are killed or inhibited from growing through the action of antimicrobial substances produced during fermentation. The fermented foods can, therefore, be kept for a longer time compared to fresh ones. It has been shown that while contamination levels in cooked unfermented foods increase with storage time, fermented foods remain less contaminated. Whatever the underlying mechanisms, the fact is that the exercise reduces contamination without adding to the household cost both in terms of time and money. Its preparation is easy. The cereal flour is mixed with water to form a dough which is left to be fermented; addition of yeast (酵母), or mixing with a small portion of previously fermented dough is sometimes needed. The dough can then be cooked into porridge for feeding to the child. Although beneficial, unfortunately the practice is going out of fashion, partly be-cause of current emphasis on the use of fresh foods, particularly for children. For example, a study on the use of fermented foods for young children in Kenya, demonstrated that while foods are still frequently fermented at home for child feeding, their use is becoming less popular, particularly in urban area where commercial products are more available. Clearly they now need to be promoted. Directions: The statements below relate to the passage you have just read. Identify whether they are TRUE or FALSE and mark the corresponding letter (T for True and F for False) on the Answer Sheet with a single line through the center.

填空题This university was founded one hundred years ago.It has been ____________________.

填空题 Last year French drivers killed {{U}}(56) {{/U}} than 5,000 people on the roads for the first time in decades. Credit goes largely {{U}}(57) {{/U}} the 1,000 automated radar cameras planted on the nation's highways since 2003, which experts reckon {{U}}(58) {{/U}} 3,000 lives last year. Success, of course breeds success: the government plans to install 500 {{U}}(59) {{/U}} radar devices this year. So it goes with surveillance these days. Europeans used to look at the security cameras posted in British cities, subways and buses {{U}}(60) {{/U}} the seeds of an Orwellian world that was largely unacceptable in Continental Europe. But last year's London bombing, in which video cameras {{U}}(61) {{/U}} a key role in identifying the perpetrators, have helped spur a sea change. A month {{U}}(62) {{/U}} the London attacks, half of Germans supported EU-wide plans to require Internet providers and telecoms to store all e-mail, internet and phone data for "anti-terror" {{U}}(63) {{/U}} In a British poll, 73 percent of respondents said they were {{U}}(64) {{/U}} to give up some civil liberty to improve {{U}}(65) {{/U}}

填空题{{U}}Not too many{{/U}} years {{U}}ago{{/U}} my mother jogged in the alley behind our house because she was embarrassed {{U}}to see{{/U}} jogging {{U}}in public{{/U}}. A. Not too many B. ago C. to see D. in public

填空题The president devoted his {{U}}energies{{/U}} to {{U}}update{{/U}} the curricula, {{U}}making{{/U}} the education offered at Washington College as meaningful and usual {{U}}as possible{{/U}}. A. energies B. update C. making D. as possible

填空题(Depictions) of animals and hunting scenes (can found) (in) the prehistoric cave paintings of (nearly every) continent. A. Depictions B. can found C. in D. nearly every

填空题We can argue over this point forever without obtaining any result.(anywhere) ____________________.

填空题{{B}}Directions:{{/B}} For each numbered blank in the following passage, fill in a suitable word in each blank on the ANSWER SHEET. Sleep is an important part of our lives. We spend about one-third of our lives sleeping. For millions of people,{{U}} (51) {{/U}}, getting enough sleep is a continuing struggle. A recent study found that thirty-five percent of Americans have{{U}} (52) {{/U}}going to sleep or staying asleep. The problem is called insomnia. Insomnia exists{{U}} (53) {{/U}}a person is not able to get the{{U}} (54) {{/U}}of sleep needed to operate effectively. Insomnia is not{{U}} (55) {{/U}}in numbers of hours of sleep. This is because different people need{{U}} (56) {{/U}}amounts of sleep to feel rested. The most common problems{{U}} (57) {{/U}}from insomnia are sleepiness and trouble in completing work. Other problems are emotional disorders and difficulty{{U}} (58) {{/U}}thinking. The treatments for{{U}} (59) {{/U}}were discussed at a recent meeting of the Association of Professional Sleep Societies. The group's sleep experts say there are three kinds of insomnia. One{{U}} (60) {{/U}}is called transient insomnia. It{{U}} (61) {{/U}}just a few days. It is a result of moderate tension. The tension can be caused by a long airplane flight or a brief stay in a hospital.{{U}} (62) {{/U}}kind is called short-term insomnia. It lasts several weeks and results from more{{U}} (63) {{/U}}tension. The tension may be caused by problems at work or at home, a major sickness or the death of a loved one. The third kind of insomnia is called{{U}} (64) {{/U}}. It lasts longer than several weeks. It often is a sign of severe physical or{{U}} (65) {{/U}}problems. Sleep experts say anyone with long-term insomnia should be examined so the cause can be found and treated. Many things we eat or drink can affect our{{U}} (66) {{/U}}. Drinks containing alcohol or caffeine can block sleep.{{U}} (67) {{/U}}can some medicines. Other causes of insomnia include breathing problems or sudden, uncontrolled body movements during sleep. Because insomnia has so many causes, not all treatments are{{U}} (68) {{/U}}for everyone. But experts have offered some simple ideas that work for most people. If{{U}} (69) {{/U}}to sleep, they say, get up and go to another room, if possible. Stay up until you are really{{U}} (70) {{/U}}, them return to bed. Get up at the same time every day. Do not exercise just before going to bed. And, do not worry about past problems or future plans.