A portable lung which could help those with breathing problems lead a normal life is being developed by scientists.
The Swansea University scientists say it could take many years before the device(裝置) , the size of a spectacle box (眼鏡盒) , is available . Lung patients , who have seen how it would work , have welcomed the research.
Its research suggests that one person in every seven in the UK is affected by lung disease---- this equates to approximately 8 million people. As of 6 March 2009, 217 people were on the waiting list for a lung transplant(移植) according to figures by NHS Blood and Transplant .
Now scientists in Swansea are developing a portable artificial lung which could transform (改觀) the lives of patients . Researchers claim that in the long term the device could offer an alternative to lung transplant , giving hope to those who suffer from conditions such as emphysema(肺氣腫) and cystic fibrosis.
The device mimics the function of a lung---by getting oxygen into and carbon dioxide out of the blood stream . Professor Bill Johns came up with the idea after his son died of Cystic Fibrosis . It is important that we make something that will help people , who instead of being confined (局限) to a wheelchair with an oxygen bottle , can actually walk around and do things for themselves , he said.
Although the research has been welcomed by leading charities(慈善) , caution has also been voiced over the length of time it will take before a portable lung will become available .
“We have to stress that this is several years away from being used , even in a trial stage,” said Chris Mulholland , head of the British Lung Foundation.
Patient Elizabeth Spence from Swansea has been refused the double lung transplant she needs but remains hopeful that one day the new device could save her . “ My body will reject the lungs , so this possibly could be an answer--- another way of getting new lungs without actually having the transplant,” she said.
【小題1】Which of the following about the portable lung would the author agree?
A.It can help a lot in lung transplants |
B.It was once on display |
C.It works differently from the normal one in the body |
D.It’s just like an oxygen bottle. |
A.support | B.money | C.time | D.trial |
A.Negative. | B.Doubtful. | C.Curious. | D.Objective. |
A.Science. | B.Culture. | C.Economy. | D.Education. |
【小題1】B
【小題2】C
【小題3】D
【小題4】A
解析試題分析:文章介紹了一種新發(fā)明——便攜式肺器官。這是一種只有眼鏡盒大小的裝置,可以模仿人體肺部功能把氧氣輸入血液,同時(shí)把二氧化碳排除人體血液系統(tǒng)。這給肺病患者帶來(lái)了很大希望,但是專家稱此裝置還需要很長(zhǎng)一段時(shí)間才能投入使用。
【小題1】B推理判斷題。從文章第二段Lung patients , who have seen how it would work , have welcomed the research .可知肺部患者見(jiàn)過(guò)這種裝置的運(yùn)作過(guò)程,由此推斷這種發(fā)明曾經(jīng)展示過(guò),故B選項(xiàng)正確。
【小題2】C細(xì)節(jié)理解題。從文章倒數(shù)第二段“We have to stress that this is several years away from being used , even in a trial stage,”可知即使是試驗(yàn)階段也得需要幾年的時(shí)間才能被使用。
【小題3】D推理判斷題。A消極的;B懷疑的;C好奇的;D客觀的。從文章的整體內(nèi)容可知,作者只是介紹這種裝置,引用或轉(zhuǎn)述別人的話,而沒(méi)有加入個(gè)人的觀點(diǎn)看法,由此可知D選項(xiàng)正確。
【小題4】A推理判斷題。文章內(nèi)容是關(guān)于一種新型醫(yī)療裝置,并且文章開(kāi)頭提出。。。is being developed by scientists,由此判斷文章是選自科學(xué)版面。故A選項(xiàng)正確。
考點(diǎn):考查科學(xué)知識(shí)類短文閱讀。
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科目:高中英語(yǔ) 來(lái)源: 題型:閱讀理解
With the popularity of 3D movies over the past several years , there was no doubt that the technology would make its way into our homes, The question is: Is it really a technology that is going to stay with us , thus deserving an upgrade(升級(jí)) at this time?
Many families have recently bought a new TV set, and the idea of changing it just to take advantage of a technology in its infancy(初期)will put many people off the idea. Then there are the additional costs that come along with a 3Dset from needing to get a Blu-ray player that can process the signal to purchasing enough glasses for the entire family to be able to watch a program at the same time.
Another issue is that the glasses are expensive as well as complicated, and have also been known to cause headaches, none of which makes for a pleasant experience.
While manufacturers are working towards glasses-free technology, it just isn’t here yet, and it could be several years before it is commercially successful. That is one of main things that will keep 3D completely in the “fashion” zone for the time being . If the television manufacturers are willing to hold onto the idea until glasses-free choices are available—and they can reach a higher installed(安裝)user base—this might very well catch on. Everyone needs to remember, however, that these are businesses, and they are in it to make money. If 3D isn’t selling at the rate they are comfortable with, then they will dump it and move on to the next thing.
Many homes are filled with products that didn’t catch on rapidly and companies ended up leaving them with no support. Do you have an HD DVD player? Remember how the MiniDisc was supposed to replace the CD? For now, it’s easy to see how 3D televisions could join this list of technologies.
There is one upside to the 3D television problem: They have beautiful 2D images. Even if 3D goes away, you still have a great –looking screen and beautiful images. If you are in the market for a new TV and you can afford to drop the couple extra hundred dollars to buy one, you can view it as guaranteeing your purchase in case the technology proves to be effective.
【小題1】We know from the text that 3D TV .
A.is easy to operate |
B.has been fully developed |
C.has many products attached to it |
D.has already replaced normal TV sets |
A.3D is fashionable and expensive. |
B.It’s hard for 3D to be commercially successful. |
C.Television manufacturers’ only purpose is to make money. |
D.It’s impossible to create glasses-free technology at the moment. |
A.they are not necessary |
B.they are bound to be replaced |
C.3D TV might not be here to stay |
D.3D technology needs improving |
A.solution | B.exception | C.character | D.benefit |
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科目:高中英語(yǔ) 來(lái)源: 題型:閱讀理解
The practice of students endlessly copying letters and sentences from a blackboard is a thing of the past. With the coming of new technologies like computers and smartphones, writing by hand has become something of nostalgic(懷舊的)skill. However, while today’s educators are using more and more technology in their teaching,many believe basic handwriting skills are still necessary for students to be successful-----both in school and in life.
Virginia Berninger, professor of educational psychology at the University of Washington, says it’s important to continue teaching handwriting and help children acquire the skill of writing by hand.
Berninger and her colleagues conducted a study that looked at the ability of students to complete various writing tasks----both on a computer and by hand. The study, published in 2009, found that when writing with a pen and paper, participants wrote longer essays and more complete sentences and had a faster word production rate.
In a more recent study, Berninger looked at what role spelling plays in a student’s writing skills and found that how well children spell is tied to how well they can write. “Spelling makes some of the thinking parts of the brain active which helps us access our vocabulary, word meaning and concepts. It is allowing our written language to connect with ideas.” Berninger said.
Spelling helps students translate ideas into words in their mind first and then to transcribe (轉(zhuǎn)換) “those words in the mind written symbols on paper or keyboard and screen,” the study said. Seeing the words in the “mind’s eye” helps children not only to turn their ideas into words, says Berninger, but also to spot(發(fā)現(xiàn)) spelling mistakes when they write the words down and to correct them over time.
“In our computer age, some people believe that we don’t have to teach spelling because we have spell checks,” she said. “But until a child has a functional spelling ability of about a fifth grade level, they won’t have the knowledge to choose the correct spelling among the options given by the computer.”
【小題1】What makes writing by hand a thing of the past?
A.Theabsenceofblackboardsinclassrooms. |
B.Theuseofnewtechnologiesinteaching. |
C.Thelackofpracticeinhandwriting. |
D.Thepopularuseofsmartphones. |
A.focusedonthedifferencebetweenwritingbyhandandonacomputer. |
B.indicatedthatstudentsprefertowritewithapenandpaper. |
C.foundthatgoodessaysaremadeupoflongsentences. |
D.discussedtheimportanceofwritingspeed. |
A.Spellingimprovesone’smemoryofwords. |
B.Spellingabilityiscloselyrelatedtowritingability. |
C.Spellingbenefitsthetranslationfromwordsintoideas. |
D.Spellingslowsdownfindingexactwordstoexpressideas. |
A. Window. | B.Soul | C.Picture. | D.Imagination. |
A.Computerscanhelppeoplewiththeirchoiceofwords. |
B.Spellcheckscantaketheplaceofspellingteaching. |
C.Handwritingstillhasaplaceintoday’sclassrooms. |
D.Functionalspellingabilitydevelopsfastinthefifthgrade. |
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科目:高中英語(yǔ) 來(lái)源: 題型:閱讀理解
Research suggests that a newly-identified gene known as insomniacs(失眠癥患者) may play a role in keeping us asleep. By cloning and testing this gene in about 21,000 fruit flies, Rockefeller University researchers say they have discovered an entirely new mechanism (機(jī)制) by which sleep is controlled.
By studying these flies, the researchers discovered that mutations(變異) in the insomniac gene were associated with a great reduction in sleep. While a typical fruit fly slept for an average of 927 minutes a day, the mutant flies slept for just 317. They also slept for shorter periods of time, and slept and woke more frequently.
“The results showed a great loss of both the time that the flies’ sleep lasted and their ability to remain asleep after they slept,” says researcher Nicholas Stavropoulos.
The researchers also examined the link between sleep and lifespan, finding that flies with mutations to the insomniac gene lived only about two-thirds as long as unchanged flies. But when the scientists removed insomniac only in neurons(神經(jīng)細(xì)胞)---allowing it to remain in the rest of the flies’ bodies---this difference disappeared; the resulting animals slept poorly but lived just as long.
“This suggests that reduced sleep can be ‘uncoupled’(分開(kāi)) from reduced lifespan, supporting the idea that some interruptions of sleep do not affect overall health, at least as far as lifespan is concerned,” Stavropoulos says.
Although flies and humans would appear to have little in common when it comes to lifestyle, scientists say that the mechanisms of sleep and wakefulness are likely to be quite similar.
“Sleep is a fundamental behavior in all animals, and it is poorly understood from a scientific standpoint, says Stavropoulos. This work could prove useful in understanding and treating sleep disorders”
【小題1】The text is mainly about____.
A.the progress in cloning fruit flies |
B.the methods of cloning fruit flies |
C.the link between gene and lifespan |
D.the influence of a gene on the ability to sleep |
A.slept about 5 hours a day |
B.had problems waking up |
C.didn’t seem sleepy at all |
D.could not fall asleep |
A.sleep and health go hand in hand |
B.sleep can be controlled by humans |
C.research into sleep is very fruitful |
D.the findings are useful in medical treatment |
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科目:高中英語(yǔ) 來(lái)源: 題型:閱讀理解
WASHINGTON(Reuters)?People who drink two or more sweetened soft drinks a week have a much higher risk of pancreatic cancer (胰腺癌), an unusual but deadly cancer, researchers reported on Monday.
People who drank mostly fruit juice instead of sodas did not have the same risk, the study of 60,000 people in Singapore found.
“Sugar may be to blame but people who drink sweetened sodas regularly often have other poor health habits,” said Mark Pereira of the University of Minnesota, who led the study.
“The high levels of sugar in soft drinks may be increasing the level of insulin(胰島素) in the body, which we think contributes to pancreatic cancer cell growth,” President said in a statement.
Writing in the journal Cancer Epidemiology, Biomarkers & Prevention, Pereira and his colleagues said they followed 60,524 men and women in the Singapore—Chinese Health Study for 14 years.
Over that time, 140 of the volunteers developed pancreatic cancer. Those who drank two or more sweetened soft drinks a week had an 87 percent higher risk of being among those who got pancreatic cancer.
Pereira said he believed the findings would apply elsewhere.
“Singapore is a wealthy country with excellent healthcare. Favorite pastimes(消遣) are eating and shopping, so the findings should apply to other western countries.” he said.
But Susan Mayne of the Yale Cancer Center at Yale University in Connecticut was cautious.
“Although this study found a risk, the finding was based on a relatively small number of cases and it remains unclear whether it was a causal(因果的) connection or not.” Said Mayne, who serves on thee board of the journal, which is published by the American Association for Cancer Research.
Pancreatic cancer is one of the deadliest form of cancer, with 230,000 cases globally. In the United States, 37,680 people are diagnosed with pancreatic cancer in a year and 34, 290 die of it.
【小題1】We can infer from Pereira’s word that_________
A.the healthcare in Singapore should be greatly improved |
B.2 soft drinks a day are considered harmful to health |
C.87 out of 140 volunteers developed pancreatic cancer |
D.sugar might not be the only cause of pancreatic cancer. |
A.Satisfied | B.Doubtful | C.Worried | D.Hopeful |
A.The Deadliest Forms of Cancer |
B.Drink Fruit Juice Instead of Sodas |
C.A Study in University of Minnesota |
D.Sugary Soft Drinks Lead to Cancer |
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科目:高中英語(yǔ) 來(lái)源: 題型:閱讀理解
Beautiful cars surrounded by even more beautiful models—it’s no secret why the 2012 Beijing Auto Show was popular.
The exhibition was held between April 23 and May 2.Although renowned companies showed off their top models,it wasn’t just their expensive sports cars that grabbed people’s attention.
Concept cars are a way for designers to test out their ideas on the public with complete freedom.They can try out cars with special features that could not be massively(批量)produced easily.
Designers don’t have to follow industry rules;they don’t even need to worry about whether their cars would be followed on the roads.
At the Beijing Auto Show,the@Ant by Chery was one concept car to draw a lot of attention.China Daily called it‘‘the very definition of a concept car”.
The vehicle is powered by electricity and is capable of driving itself.But the magic doesn’t end there.
The@Ant was inspired by actual ants.According to Car News China,with the help of automated telemetric systems,@Ants are able to“see” other@Ants and compare destination information. If two are heading the same way for a while, the vehicles connect, with one car’s rear (后面的)wheels matching up with the front wheels of another car.Up to 10@Ants can be put together and will automatically connect to form a“train".This will help save energy while traveling, as well reducing traffic jams.
The car sounds like a great idea.Further research will be needed to turn this concept car into something for the market,but concepts like Cherry’s show how carmakers are working for cleaner and greener vehicles.It’s like what the@Ant motto says,“Exploring future human beings’lifestyles”.
【小題1】The concept car is getting popular because .
A.it looks like an ant |
B.it is beautifully designed |
C.it is exhibited as a top model |
D.it conveys a new idea for the future |
A.By connecting each other and running together |
B.By driving themselves without man’s control |
C.By comparing their destination information |
D.By reducing traffic jams on the roads |
A.to test the safety of the concept car |
B.to follow the rules in the car industry |
C.to show their unique idea of complete freedom |
D.to see if concept cars can be massively produced |
A.Concept Cars Are Driving to the Future |
B.The@Ant Draws a Lot of Attention |
C.The@Ant Is a Top Model of Concept Cars |
D.Concept Cars Are Cleaner and Greener |
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科目:高中英語(yǔ) 來(lái)源: 題型:閱讀理解
A research found that people shown silent videos of piano competitions could pick out the winners more often than those who could also hear the music. It underlines the importance of our sense of vision, say scientists. Their study concludes that the best predictor of a winner’s musical performance was the visible passion they displayed, followed closely by their uniqueness and creativity.
Chia-Jung Tsay, from University College London, UK, is the study’s author and herself a concert pianist. She was interested in how music was judged and found that even professional musicians were unaware of how much they were using visual information over sound. “For the last two decades, I’ve taken part in various competitions. Through this experience, I found that depending on what type of evaluations were used, the results might vary widely. This led me to wonder about how much visual information really affects these important decisions,” she explained.
More than 1,000 participants in the study were given samples of either audio, silent video or video with sound, and asked to rate the top three finalists from 10 international classical music competitions. The actual competition winners were only correctly identified by those who were randomly assigned(分配) the silent videos.
Dr Tasy said the findings were quite surprising, especially because both trained musicians and those without training had stated that sound was most important for their evaluation. “Regardless of levels of expertise, we still seem to be led primarily by visual information, even in this field of music,” she said. “Classical music training is often focused on improving the quality of the sound, but this research is about getting to the bottom of what is really being evaluated at the highest levels of competitive performance. She added, “We must be more mindful of our inclination(傾向) to depend on visual information at the expense of the content that we actually value as more relevant to our decisions.”
【小題1】According to the study, who would most probably win a piano competition?
A.One who plays with great passion. |
B.One who plays unique music. |
C.One who plays creatively. |
D.One who has a sense of vision. |
A.watch classical music competitions |
B.a(chǎn)ssign the silent videos |
C.pick out the best three competitors |
D.decide who the winner is |
A.Her love for music. |
B.Her desire to explore. |
C.Her experience as a competitor. |
D.Her curiosity in musical education. |
A.A text book. | B.A sports magazine. |
C.A story book. | D.A science website. |
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科目:高中英語(yǔ) 來(lái)源: 題型:閱讀理解
Riding a London subway, a person from other countries will notice one major difference: in London, people do not look at each other.In fact, eye contact is avoided at all times. That’s not rudeness ― people are just too busy to bother looking.
Busy doing what, you ask? Well, they’re certainly not using the time for a moment of quiet thinking.Nor are they reading a book.New technology has replaced quiet habits.Today the only acceptable form of book on the London underground is an e-book.
Apple must earn a fortune from London commuters(使用月票上下班者). Since the launch of the iPhone in 2007, over 40, 000 ― yes, 40, 000 “apps” have been designed.
Commuters love them because they are the perfect time - fillers. One “app”, called iShoot, is a game that features tanks.Another one, Tube Exits, tells passengers where to sit on the train to be closest to the exit of their destination. iSteam clouds the iPhone screen when you breathe into the microphone. You can then write in the “steam” on your phone screen.
For those without an iPhone, another Apple product, the iPod, may be the distraction (消遣) of choice. It’s not just teenagers who “plug in” to their music - iPods are a popular way to pass the time for all ages.
And if games, e-books and music aren’t enough to keep you occupied, then perhaps you would prefer a film? The development of palm DVD technology means many commuters watch their favorite TV shows or films on the way to work.With all these distractions, it’s amazing that people still remember to get off the train.
【小題1】Those who want to save time to reach where they go can download ________ to their iPhones
A.iShoot | B.Tube Exits | C.iSteam | D.iPod |
A.they are going to work and have no time to communicate with each other |
B.they love reading books and do not want to be disturbed |
C.they feel sleepy because of getting up early |
D.they’re busy playing games, reading e-books, listening to music or watching films |
A.computers |
B.programs downloaded for the iPhone |
C.computer companies |
D.fortune from London commuters |
A.London commuters are unfriendly to strangers |
B.Apple has earned a lot of money from selling 40, 000 apps |
C.technology is changing how London commuters spend their traveling time |
D.riding a London subway is a must when visiting London |
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科目:高中英語(yǔ) 來(lái)源: 題型:閱讀理解
People diet to look more attractive.Fish diet to avoid being beaten up,thrown out of their social group,and getting eaten as a result.That is the fascinating conclusion of the latest research into fish behavior by a team of Australian scientists.
The research team have discovered that subordinate(低一等的) fish voluntarily diet to avoid challenging their larger competitors."In studying gobies we noticed that only the largest two individuals,a male and female,had breeding(繁殖)rights within the group," explains Marian Wong."All other group members are nonbreeding females,each being 5-10% smaller than its next largest competitor.We wanted to find out how they maintain this precise size separation."
The reason for the size difference was easy to see.Once a subordinate fish grows to within 5-10% of the size of its larger competitor,it causes a fight which usually ends in the smaller goby being driven away from the group.More often than not,the evicted fish is then eaten up.
It appeared that the smaller fish were keeping themselves small in order to avoid challenging the boss fish.Whether they did so voluntarily,by restraining how much they ate,was not clear.The research team decided to do an experiment.They tried to fatten up some of the subordinate gobies to see what happened.To their surprise,the gobies simply refused the extra food they were offered,clearly preferring to remain small and avoid fights,over having a feast.
The discovery challenges the traditional scientific view of how boss individuals keep their position in a group.Previously it was thought that large individuals simply used their weight and size to threaten their subordinates and take more of the food for themselves,so keeping their competitors small.
While the habits of gobies may seem a little mysterious,Dr.Wong explains that understanding the relationships between boss and subordinate animals is important to understand how hierarchical(等級(jí)的)societies remain stable.
The research has proved the fact that voluntary dieting is a habit far from exclusive to humans."As yet,we lack a complete understanding of how widespread the voluntary reduction of food intake is in nature," the researchers comment."Data on human dieting suggests that,while humans generally diet to improve health or increase attractiveness,rarely does it improve long-term health and males regularly prefer females that are fatter than the females' own ideal."
【小題1】When a goby grows to within 5-10% of the size of its larger competitor,it _________.
A.leaves the group itself | B.has breeding rights |
C.eats its competitor | D.faces danger |
A.the fish beaten up | B.the fish driven away |
C.the fish found out | D.the fish fattened up |
A.fought over a feast | B.preferred some extra food |
C.challenged the boss fish | D.went on diet willingly |
A.Fish dieting and human dieting. | B.Dieting and health. |
C.Human dieting. | D.Fish dieting. |
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