Poor Oral Health Leads to Social and Emotional Problems
A new report says nearly four-billion people have major tooth decay, or cavities. That number represents more than half of the world's population. Health officials are warning that failure to repair cavities can lead to social and emotional problems.
Wagner Marcenes is with the Institute of Dentistry at Queen Mary, University of London. He led a team of researchers as part of the Global Burden of Disease 2010 study. About 500 researchers attempt to collect and examine studies about all major diseases. They used the information to estimate rates of the infection.
The report says untreated tooth decay is the most common of all 291 major diseases and injuries. Professor Marcenes says cavities or holes in permanent teeth are also known as caries.
"Caries is a chronic disease that shares the same risk factors as cancer, cardiovascular disease. What we're having now is an increase in disease from highly developed countries happening in sub-Saharan Africa and probably it will be in other areas of Africa, too."
He says an increase in tooth decay in Africa could be a result of developing countries becoming more like Western nations.
"It is likely to be related to a change in diet. Our industrialized diet leads to chronic disease, which includes caries. And that may be the main explanation."
Western diets are rich in sugar, a leading cause of health problems in the mouth. Wagner Marcenes says oral health problems can have a major effect on a person's quality of life. First, cavities make eating difficult. Second, people may change what they eat. They may eat softer foods that are not hard to chew. However, softer foods are often fattier foods.
But professor Marcenes says the biggest issue in tooth decay is both social and mental. He says the researchers found strong evidence that the mouth has a big influence on socialization. He says many people want to hide bad teeth. They smile less and communicate less.
Wagner Marcenes is calling for an "urgent, organized, social response" to the widespread lack of oral health. He believes in a natural method to fight tooth decay by having a healthier diet. He is also calling for the development of new and less costly dental materials and treatments.
【小題1】From the passage, we know that Wagner Marcenes ______.
A.works as the leader of the Institute of Dentistry at Queen Mary, University of London. |
B.a(chǎn)nd his researchers accumulate some studies to find out some ways to cure all major disease. |
C.is in charge of the activity to estimate the infection rate with the collected and examined studies about all major studies. |
D.thinks that the most serious problem caused by tooth decay is cancer that will last for a long time. |
A.is listed in the most common of all 291 major diseases and injuries which will last for a long time.. |
B.is closely related to industrialized diet which calls for people to eat slowly. |
C.increases in Africa now because developing countries are becoming developed countries. |
D.will cause phychological disorder which will affect people’s communication. |
A.a(chǎn)rouse people’s concern about caries and take measures to deal with it. |
B.tell the result of the Global Burden of Disease 2010 study. |
C.warn people in Africa to adjust their diet to prevent caries. |
D.tell doctors that caries affects a person’s quality of life. |
A.indifferent | B.concerned | C.a(chǎn)ngry | D.negative |
【小題1】C
【小題2】D
【小題3】A
【小題4】B
解析試題分析:文章大意:槽糕的口腔衛(wèi)生差導(dǎo)致的社會(huì)和情感問題,作者想引起人們對(duì)于口腔問題注意并及時(shí)采取措施解決它。
【小題1】C 細(xì)節(jié)理解題。根據(jù)第二段第一、第二句“Wagner Marcenes is with the Institute of Dentistry at Queen Mary, University of London.”可知其人是與該機(jī)構(gòu)一起工作,并非該機(jī)構(gòu)的領(lǐng)導(dǎo)者,第二句提到他領(lǐng)導(dǎo)一個(gè)研究隊(duì),所以A不對(duì);B項(xiàng)提到“cure all major disease”太過絕對(duì)且文中并無體現(xiàn);C項(xiàng)根據(jù)第二段第二、第三、第四句可知是正確的;D項(xiàng)提到第四段第一句是說他們一樣危險(xiǎn)。故不對(duì)。
【小題2】D 細(xì)節(jié)理解題。A項(xiàng)根據(jù)第三段第一、第二句可知對(duì)象誤用,排除;B項(xiàng)第三段第一句以及第六段第一句可知是錯(cuò)的;C項(xiàng)提到成為發(fā)達(dá)國家是錯(cuò)的,應(yīng)該為“more like western nations”才對(duì);D項(xiàng)從第八段最后一句可以看出:這種疾病將引起心理混亂影響人們的交流。故D正確。
【小題3】A 推理判斷題。作者寫本文就是引起人們關(guān)注這種疾病并采取措施處理。故A正確;B項(xiàng)告訴研究結(jié)果是片面的觀點(diǎn);C項(xiàng)從第五段看出只是一個(gè)觀點(diǎn);D項(xiàng)不是僅僅告訴醫(yī)生所以不對(duì)。
【小題4】B 事實(shí)細(xì)節(jié)題。從文章結(jié)構(gòu)來看,先提出問題然后提出解決辦法,說明作者是持著關(guān)心的態(tài)度來寫的。故B正確。
考點(diǎn): 健康保健類短文閱讀。
年級(jí) | 高中課程 | 年級(jí) | 初中課程 |
高一 | 高一免費(fèi)課程推薦! | 初一 | 初一免費(fèi)課程推薦! |
高二 | 高二免費(fèi)課程推薦! | 初二 | 初二免費(fèi)課程推薦! |
高三 | 高三免費(fèi)課程推薦! | 初三 | 初三免費(fèi)課程推薦! |
科目:高中英語 來源: 題型:閱讀理解
Pupils remember more and behave better when 3D images are used in lessons, research suggests. They are quicker to learn and absorb new concepts, and display higher levels of concentration.
Professor Anne Bamford, of the University of the Arts, London, studied the effectiveness of 3D content in 15 schools across seven countries, including the UK. Pupils in 3D classes could remember more than those in the 2D classes after four weeks, improving test scores by an average 17 percent compared with eight percent for 2D lessons. They gave more detailed answers to the tasks and were more likely to think in 3D, using hand gestures and mime (模仿動(dòng)作) to answer the test questions successfully.
The teachers commented that the pupils in the 3D groups had deeper understanding, increased attention span, more motivation and higher engagement in the lessons.
Children are used to 3D with the rise of computer games that use the technology—90 percent of those in the study had seen a 3D film. Schools would need 3D-enabled projectors(投影儀), laptops with good picture capabilities, 3D software and glasses for children to introduce animations (動(dòng)作) into classrooms.
But Danny Nicholson, an educationist, said the technology would be impractical to use in schools and could be costly. He said, “While I think the idea of 3D technology is very interesting, I worry that 3D is a bit of an expensive gimmick (小玩意兒). There are a few cases where a true 3D image might help, but most of the time, good 2D models that can be moved , would be just so effective.”
In Colorado, the US, one school district is already in the process of having 1,000 3D projectors fixed in classrooms. And the University of Caledonia, which carries out scientific research into the Lake Tabon Basin, has used 3D presentations with Grade Six pupils. Those who watched the 3D presentations were more engaged and reported a general increase in their interest in science compared with students who watched the 2D version.
【小題1】Danny Nicholson tends to think that .
A.many pupils prefer 2D models |
B.3D is a bit expensive for some schools |
C.true 3D images would not help in classes |
D.3D technology has a bright future in classes |
A.3D classes will soon be given in one school district in Colorado. |
B.Teachers will use the 3D technology through specific training. |
C.Many pupils are now more interested in science than before. |
D.3D technology will replace 2D models in the future. |
A.2D models are always more effective than 3D images. |
B.The differences between 3D and 2D images. |
C.How schools can make full use of 3D technology. |
D.Pupils behave better when 3D images are used in classes. |
查看答案和解析>>
科目:高中英語 來源: 題型:閱讀理解
American researchers found females are the more talkative sex because of a special “l(fā)anguage protein(蛋白質(zhì))” in the brain.
The study, conducted by neuroscientists (神經(jīng)學(xué)家)and psychologists from the University of Maryland, concluded that women talked more because they had more of the Foxp2 protein. The research, published in the Journal of Neuroscience, found that higher levels were found among humans that were women but in rats that were males. Their findings came after it was previously claimed that ladies speak about 20,000 words a day—over 13,000 more than men. “This study is one of the first to report a sex difference in the expression of a language-associated protein in humans or animals,” said Prof Margaret McCarthy, who led the study. In their study, the researchers attempted to determine what might make male rats more vocal(能發(fā)出聲音或語言的) than their female friends.
They separated four-day-old rats from their mothers and then counted the number of times they cried out in the “ultrasonic(超聲波的) range”, the frequencies higher than humans can hear, over five minutes. While both sexes called out hundreds of cries, the males called out twice as often, they found. But when the pups幼崽were returned to their mother’s cage, she fussed over her sons first. Tests conducted on the parts of the brain known to be associated with vocalcalls showed the male pups have up to twice as much Foxp2 protein as the females. The researchers then increased the production in the brains of female pups and reduced it in males. This led to the female rats crying out more often and their mothers showing more interest to them. In contrast, males became less “talkative”.
The researchers then tested samples from ten children, aged between three and five, which showed that females had up to 30 per cent more of the Foxp2 protein than males, in a brain area key to language in humans.
“Based on our observations, we assume higher levels of Foxp2 in girls and higher levels of Foxp2 in male rats is an indication that Foxp2 protein levels are associated with the more communicative sex,” said Prof McCarthy.
“Our results imply Foxp2 as a component of the neurobiological basis of sex differences in vocal communication in mammals.”
【小題1】From the second paragraph, we can learn that ________.
A.women always speak more words than men |
B.men and male rats have low levels of language protein |
C.women and male rats have similar levels of Foxp2 |
D.McCarthy isn’t the first to find females more talkative |
A.paid attention to | B.related to | C.put pressure on | D.counted on |
A.test which part of the brain is key to language in rats and humans |
B.prove the levels of Foxp2 protein in humans and rats are different |
C.determine the reason why female rats are more talkative than male rats |
D.discover the association between Foxp2protein and vocal communication |
A.Tests on humans and rats | B.Why women are the talkative sex |
C.Sex differences in fussed over | D.Foxp2 protein determines oral ability |
查看答案和解析>>
科目:高中英語 來源: 題型:閱讀理解
Recently there was a major discovery in the scientific research—the mapping of all DNA in a human gene(基因) is complete.Couple of years ago, this seems an impossible task for scientist to accomplish.All this progress in science leads us to believe that the day, when the human being will be cloned, is not far away.Human cloning has always been a topic of argument, in terms of morality or religion.
Taking a look at why cloning might be beneficial, among many cases, it is arguable that parents who are known to be at risk of passing a genetic limitation to a child could make use of cloning.If the clone was free of genetic limitations.then the other clone would be as well.The latter could foe inserted in the woman and allowed to ripen to term.Moreover, cloning would enable women, who can't get pregnant, to have children of their own.
Cloning humans would also mean that organs could be cloned, so it would be a source of perfect transfer organs.This, surely would be greatly beneficial to millions of unfortunate people around the world that are expected to lose their lives due to failure of single (or more) organ (s).It is also arguable that a ban on cloning may be unlawful and would rob people of the right to reproduce and limit the freedom of scientists.
Arguments against cloning are also on a perfectly practical side.Primarily, I believe that cloning would step in the normal "cycle" of life.There would be a large number of same genes, which reduce the chances of improvement, and, in turn, development—the fundamental reason how living things naturally adapt to the ever-changing environment.Life processes failing to do so might result in untimely disappearance.Furthermore, cloning would make the uniqueness that each one of us possesses disappear.Thus, leading to creation of genetically engineered groups of people for specific purposes and, chances are, that those individuals would be regarded as "objects" rather than people in the society.
Scientists haven't 100 per cent.guaranteed that the first cloned humans will be normal.Thus this could result in introduction of additional limitations in the human "gene-pool".
Regarding such arguable topics in "black or white" approach seems very innocent to me personally.We should rather try to look at all "shades" of it.I believe that cloning is only legal if its purpose is for cloning organs; not humans.Then we could regard this as for "saving life" instead of "creating life".I believe cloning humans is morally and socially unacceptable.
【小題1】Which of the following is true according to the passage?
A.Genetic limitation will be beneficial for some women |
B.A large number of genes will prevent us from developing |
C.Prohibition of cloning might limit the freedom of scientists |
D.First cloned humans might be normal according to scientists |
A.Cloning should be entirely banned. |
B.Cloning should be used in creating life. |
C.Cloning will take away the right to reproduce. |
D.Cloning is acceptable if it is used for cloning organs. |
A.In a story book |
B.In a magazine |
C.In a science fiction |
D.In a brochure |
查看答案和解析>>
科目:高中英語 來源: 題型:閱讀理解
Deputy Agriculture Secretary Kathleen Merrigan sees an epidemic (流行病) sweeping across Americas farmland. It has little to do with the usual challenges, such as flood, rising fuel prices and crop-eating insects. The country's farmers are getting older, and there are fewer people standing in line to take their place. National agricultural census (普查) figures show that the fastest-growing group of farmers is the part over 65. Merrigan is afraid the average age will be even higher when the 2012 statistics are completed.
Merrigan, a former college professor, is making stops at universities across the country in hopes of encouraging more students to think about careers in agriculture. Aside from trying to stop the graying of America's farmers, her work is made tougher by a recent blog posting that put agriculture at No.1 on a list of "useless" college degrees. Top federal agriculture officials are talking about the posting, and it has the attention of agricultural organizations across the country.
“There couldn't be anything that's more incorrect," Merrigan said. "We know that there aren't enough qualified graduates to fill the jobs that are out there in American agriculture.
In addition, a growing world population that some experts predict will require 70% more food production by 2050, she said.
“I truly believe we're at a golden age of agriculture. Global demand is at an all-time record high, and global supplies are at all-time record lows," said Matt Rush, director of the Texas Farm Bureau. "Production costs are going to be valuable enough that younger people are going to have the opportunity to be involved in agriculture”.
The Department of Agriculture has programs aimed at developing more farmers and at increasing interest in locally grown food. The National Young Farmers' Coalition has also been pushing for state and federal policy changes to make it easier for new fermers.
Ryan Best, president of Future Fanners of America, has been living out of a suitcase, traveling the country and visiting with high school students about careers in agriculture. The 21 -year-old Best hopes his message-that this is a new time in agriculture-will motivate the next generation to turn around the statistics.“Never before have we had the innovations (創(chuàng)新)in technology which have led to agriculture in this country being the most efficient it has ever been” he said. “There’s really a place for everybody to fit in”
【小題1】What is the new challenge to American agriculture?
A.Fewer and older farmers. | B.Higher fuel prices. |
C.More natural disasters. | D.Lower agricultural output. |
A.To draw federal agriculture officials' attention |
B.To select qualified agriculture graduates. |
C.To clarify a recent blog posting. |
D.To talk more students into farming careers |
A.the government will cover production costs |
B.global food supplies will be even lower |
C.investment in agriculture will be profitable |
D.America will increase its food export |
A.To re-analyze the result of the national census. |
B.To increase production. |
C.To bring down the average age of farmers. |
D.To invest more in agriculture. |
查看答案和解析>>
科目:高中英語 來源: 題型:閱讀理解
Do you want to live another 100 years or more? Some experts say that scientific advances will one day enable humans to last tens of years beyond what is now seen as the natural limit of the human life span.
"I think we are knocking at the door of immortality(永生)," said Michael Zey, a Montclair State University business professor and author of two books on the future. "I think by 2075 we will see it and that’s a conservative estimate".
At the conference in San Francisco, Donald Louria, a professor at New Jersey Medical School in Newark said advances in using genes as well as nanotechnology(納米技術(shù))make it likely that humans will live in the future beyond what has been possible in the past. "There is a great push so that people can live from 120 to 180 years," he said. "Some have suggested that there is no limit and that people could live to 200 or 300 or 500 years."
However, many scientists who specialize in ageing are doubtful about it and say the human body is just not designed to last about 120 years. Even with healthier lifestyles and less disease, they say failure of the brain and organs will finally lead all humans to death.
Scientists also differ on what kind of life the super aged might live. "It remains to be seen if you pass 120, you know; could you be healthy enough to have good quality of life?" said Leonard Pooh, director of the University of Georgia Gerontology(老齡學(xué)) Center. "At present people who could get to that point are not in good health at all."
【小題1】By saying "we are knocking at the door of immortality", Michael Zey means ________.
A.they believe that there is no limit of living |
B.they are sure to find the truth about long living |
C.they have got some ideas about living forever |
D.they are able to make people live past the present life span |
A.people can live from 120 to 180 years |
B.it is still doubtful how long humans can live |
C.the human body is designed to last about 120 years |
D.it is possible for humans to live longer in the future |
A.a(chǎn) great push |
B.the idea of living beyond the present life span |
C.the idea of living from 200 to 300 years |
D.the conservative estimate |
A.Living Longer or Not |
B.Science, Technology and Long Living |
C.No Limit for Human Life |
D.Healthy Lifestyle and Long Living |
查看答案和解析>>
科目:高中英語 來源: 題型:閱讀理解
Our culture is the system we use to build our identity. All living creatures are part of a culture. Even animals have a culture! So what is culture? It’s the way we behave in a group. It begins with each individual family. Within our families we do things to build relationships with each other. This can include routines for doing things. It also includes traditions. Traditions are activities that are repeated on a regular basis.
Culture is not limited to individual family groups. The real strength of culture is in larger community (社會(huì))groups. These larger groups are called societies. Every society makes rules for itself. It decides how people should act in different situations. Some of these rules are written down. Some are just things that are automatically expected of all members of that society. Often, cultures can be identified(識(shí)別)by what the people believe. Cultures are also known by what they choose to include in their art. Sometimes a society forms around people who speak the same language. Cultures may also be known for their customs, including the foods they make and the things they do.
Our cultures help us understand who we are and what we believe. There are very strong emotions(情感)connecting us to our own society. Two different cultures may disagree on something, especially if they both feel strongly about it. When that happens, war is a common result. People are learning better ways to communicate with each other. The more we learn, the more we appreciate the differences in cultures.
【小題1】Which of the following is not true?
A.Every society has its own culture. |
B.Every one with an identity card has his own culture. |
C.Animals have their cultures. |
D.Culture and traditions are connected. |
A.A religion that a certain people practice |
B.Greetings sent to people we love during spring festival |
C.Face-changing in Sichuan Opera |
D.Someone’s personal habit of staying up very late |
A.Modern societies have written down all the rules for behavior. |
B.Plants themselves have no culture. |
C.Disagreement between two societies always leads to war. |
D.Strong emotions that connect us to our society should be got rid of. |
A.cultural exchanges may help reduce the risk of war |
B.a(chǎn)ll disagreements are caused by strong feelings |
C.differences in culture always cause disagreements |
D.people haven’t tried different ways to communicate |
查看答案和解析>>
百度致信 - 練習(xí)冊(cè)列表 - 試題列表
湖北省互聯(lián)網(wǎng)違法和不良信息舉報(bào)平臺(tái) | 網(wǎng)上有害信息舉報(bào)專區(qū) | 電信詐騙舉報(bào)專區(qū) | 涉歷史虛無主義有害信息舉報(bào)專區(qū) | 涉企侵權(quán)舉報(bào)專區(qū)
違法和不良信息舉報(bào)電話:027-86699610 舉報(bào)郵箱:58377363@163.com