Scientists have developed a new type of smart bandage (绷带) that can signal the type of bacterial (细菌的) infection it’s protecting, just like a traffic light, as well as release the right type of drugs on demand. The traffic light system works just like this: Green means no bacteria or a low concentration of bacteria, yellow means drug-sensitive (DS) bacteria responsive to standard antibiotics (抗生素) and causes antibiotic release, and red means drug-resistant (DR) bacteria that need extra help to be wiped out.
In testing the bandage on mice, the research team was able to successfully treat both DS and DR infections using the new method. However, the common methods of sensing resistance are limited by time, the requirement for professional personnel, and expensive instruments. Moreover, the abuse of antibiotics causes the accelerated process of bacterial resistance.
It’s easy to see how a simple bandage and light could overcome some of these limitations. Treatment doesn’t have to wait for a doctor to make a diagnosis, and the bandage can get the right sort of drugs applied at the earliest opportunity. What’s more, the person wearing the bandage gets real-time feedback on what’s happening with the infection, if there’s an infection at all. The researchers say it offers numerous benefits over existing treatments that make use of light, including photodynamic therapy or PDT.
We’ve been seeing quite a few upgrades to the traditional bandage in recent years, thanks to advances in science — like the nanofiber mesh that attracts bacteria and draws some of it out, speeding up the healing process. Then there’s the novel bandage for treating burns, which stops bacteria from multiplying and lowers the risk of infection.
The more work that a bandage can do while it’s protecting a wound, the better. Efforts to improve bandages continue and now we've got a bandage that not only releases antibiotics, but also tells the patient exactly what’s going on too.
1.What is the smart bandage mainly designed to do?
A.Avoid the use of antibiotics. B.Clear out harmful bacteria.
C.Detect bacterial infections. D.Increase treatment options.
2.What is the advantage of the smart bandage?
A.It saves much time and cost. B.It removes the risk of infection.
C.It prevents the bacterial resistance. D.It improves doctor-patient relationship.
3.What can be inferred from the last two paragraphs?
A.Traditional bandages are out of use now.
B.More smart bandages will be developed.
C.Progress in science calls for more research.
D.People are urged to study medical science.
4.What does the text focus on?
A.A successful test on mice. B.A colour-changing bandage.
C.Sensing drug-resistant bacteria. D.Preventing abuse of antibiotics.
高三英语阅读理解中等难度题
Scientists have developed a new type of smart bandage (绷带) that can signal the type of bacterial (细菌的) infection it’s protecting, just like a traffic light, as well as release the right type of drugs on demand. The traffic light system works just like this: Green means no bacteria or a low concentration of bacteria, yellow means drug-sensitive (DS) bacteria responsive to standard antibiotics (抗生素) and causes antibiotic release, and red means drug-resistant (DR) bacteria that need extra help to be wiped out.
In testing the bandage on mice, the research team was able to successfully treat both DS and DR infections using the new method. However, the common methods of sensing resistance are limited by time, the requirement for professional personnel, and expensive instruments. Moreover, the abuse of antibiotics causes the accelerated process of bacterial resistance.
It’s easy to see how a simple bandage and light could overcome some of these limitations. Treatment doesn’t have to wait for a doctor to make a diagnosis, and the bandage can get the right sort of drugs applied at the earliest opportunity. What’s more, the person wearing the bandage gets real-time feedback on what’s happening with the infection, if there’s an infection at all. The researchers say it offers numerous benefits over existing treatments that make use of light, including photodynamic therapy or PDT.
We’ve been seeing quite a few upgrades to the traditional bandage in recent years, thanks to advances in science — like the nanofiber mesh that attracts bacteria and draws some of it out, speeding up the healing process. Then there’s the novel bandage for treating burns, which stops bacteria from multiplying and lowers the risk of infection.
The more work that a bandage can do while it’s protecting a wound, the better. Efforts to improve bandages continue and now we've got a bandage that not only releases antibiotics, but also tells the patient exactly what’s going on too.
1.What is the smart bandage mainly designed to do?
A.Avoid the use of antibiotics. B.Clear out harmful bacteria.
C.Detect bacterial infections. D.Increase treatment options.
2.What is the advantage of the smart bandage?
A.It saves much time and cost. B.It removes the risk of infection.
C.It prevents the bacterial resistance. D.It improves doctor-patient relationship.
3.What can be inferred from the last two paragraphs?
A.Traditional bandages are out of use now.
B.More smart bandages will be developed.
C.Progress in science calls for more research.
D.People are urged to study medical science.
4.What does the text focus on?
A.A successful test on mice. B.A colour-changing bandage.
C.Sensing drug-resistant bacteria. D.Preventing abuse of antibiotics.
高三英语阅读理解中等难度题查看答案及解析
Scientists at the University of Oxford have developed new artificial intelligence(AI) software to recognize and follow up the faces of chimpanzees(黑猩猩)in the wild. The new software will allow researchers and wildlife conservationists to significantly cut back on time spent analyzing videos, according to the new paper published in Science Advances.
For species(物种)like chimpanzees, which have complex social lives and live for many years，getting photos of their behavior taken from short-term field research can only tell us so much，” says Dan Schofield， researcher and DPhil student at Oxford University’s Private Models Lab, School of Anthropology. “By taking advantage of the power of machine learning to unlock large video files , it makes it possible to measure behavior over the long term. ’’
The computer model was trained using over 10 million images(影像):from Kyoto University s Primate Research Institute(PRI) video files of wild chimpanzees in Guinea,West Africa. The new software is the first to continuously track and recognize individual a wide range of poses, performing with high accuracy in difficult conditions such as low lighting and poor image quality.
“Access to this large video file has allowed us to use deep neural networks to train models to a degree that was previously not possible,” says Arsha Nagrad, co-auther of the study and DPhil student at the Department of Engineer Science ,University of Oxford .” Additionally, our new software differs from previous primate face recognition software in that it can be applied to videos with limited manual intervention(人工干预)，saving hours of time. ”
The technology can be potentially used to monitor species for conservation Although the present application focuses on chimpanzees, the AI software provided will be applied to other species, and help drive the adoption of AI systems to solve(解决)a range of problems in the wildlife sciences.
1.What is the purpose of developing the new soft?
A.To save wildlife researchers’ time spent in the labs.
B.To keep track of wildlife conservationists' behaviors.
C.To protect chimpanzees and help them to live longer .
D.To recognize and track the faces of wild chimpanzees.
2.What does the underlined word “it” in paragraph 2 refer to?
A.Getting photos. B.Analyzing videos.
C.A powerful machine D.The new AI software.
3.What does paragraph 4 mainly talk about?
A.The working principle of the new software. B.Some limitations of using the new software.
C.The unique advantages of the new software. D.Controversial attitudes to the new software.
4.What can be known from the last paragraph?
A.Technology advance is the final goal of science
B.The new software won’t just be applied to chimpanzees.
C.AI systems are widely used in the wildlife sciences.
D.The application of the new technology isn’t easy.
高三英语阅读理解中等难度题查看答案及解析
Scientists at the University of Oxford have developed new artificial intelligence (AI) software to recognize and follow up the faces of individual chimpanzees (黑猩猩) in the wild. The new software will allow researcher and wildlife conservationists to greatly cut back on time spent analyzing videos, according to the new paper published today in Science Advances.
“For species like chimpanzees, which have complex social lives and live for many years, getting photos of their behavior from short-term field research can only tell us so much.” says Dan Sehofield, researcher and DPhil student at Oxford University’s Primate Models Lab, School of Anthropology. “By taking advantage of the power of machine learning to unlock large video files, it makes it possible to measure behavior over the long term.”
The computers model was trained using over 10 million images (影像) from Kyoto University’s Primate Research Institute (PRI) video files of wild chimpanzees in Guinea, West Africa. The new software is the first to continuously track and recognize individuals in a wide range of posed, performing with high accuracy in difficult conditions such as low lighting and poor image quality.
“Access to this large video file has allowed us to use the newest deep neural networks to train models at a scale that was previously not possible,” says Arsha Nagrani, co-author of the study and DPhil student at the Department of Engineering Science, University of Oxford. “Additionally, our new software differs from previous primate face recognition software in that it can be applied to raw videos with limited manual intervention (人工干预) or pre-processing, saving hours of time.”
The technology has potential for many uses, such as monitoring species for conservation. Although the present application focused on chimpanzees, the software provided could be applied to other species, and help drive the adoption of AI systems to solve a range of problems in the wildlife sciences.
1.What’s the purpose of developing the new software?
A.To save wildlife researchers’ time spent in the wild.
B.To keep track of wildlife conservationists’ behavior.
C.To protect chimpanzees and help them to live longer.
D.To recognize and track the faces of wild chimpanzees.
2.What does the underlined word “it” in paragraph 2 refer to?
A.Getting photos. B.Analyzing videos.
C.The new AI software. D.A powerful machine.
3.What does paragraph 4 mainly talk about?
A.The unique advantages of the new software.
B.Some limitations of using the new software.
C.The working principles of the new software.
D.Controversial attitudes to the new software.
4.What can be inferred from the last paragraph?
A.The new software has a quite bright future.
B.The application of the technology can be tough.
C.Technology is the final goal of scientific research.
D.AI systems are widely used in the wildlife sciences.
高三英语阅读理解中等难度题查看答案及解析
Researchers have developed new software using smart phones’GPS and imaging abilities that determine the exact location of distant objects as well as monitor the speed and direction of moving objects．The software could eventually allow smart phone-armed soldiers to target the location of their enemies．On the home front，the software could be used by everyone，including golfers judging distance to the green and biologists documenting the location of a rare animal without disturbing it．
“The great advantage of a Smartphone is that it provides so many tools in a single，readily available，relatively inexpensive package，”said Qia Wang，a doctoral student who led the development of the software．“For example，on the battlefield，a soldier needs a rangefinder，compass，GPS and other tools to get information before calling in an air strike．With our software，the soldier can have all those instruments in one device that can be purchased off the shelf．When that soldier returns from War，she can use the same Software to protect her family by clocking a speeder near her children’s school and catching the criminal on video．”
Wang and his colleagues developed their software to locate and track：
Targets of known size—when the size of the target is known．a single image is enough to pinpoint the target’s location．
Targets of unknown size—If the exact size of a target is unknown，the software uses two images to triangulate the location of the target·
Moving targets—By taking a short video of a moving target，the smartphone software can calculate how fast the target is moving and in what direction it is going.
“Currently，our software is limited by the physical abilities of smartphone hardware，but the devices are improving rapidly，”Wang said．“We expect that improvements in GPS accuracy，battery life and camera resolution will allow our software to make even more accurate observations．”
1.From Paragraph 1 we can know that the new software can.
A．determine the speed of moving objects
B．1ocate objects in the distance exactly
C．defend soldiers against their enemies
D．help biologists protect rare animal
2.The example given by Qia Wang is meant to .
A．make an advertisement
B．describe the software briefly
C．show the benefits of the software
D．present the functions of smartphones
3.How does the software calculate the speed of a moving object?
A．By taking a short video．
B．By locating its position.
C．By taking a single image．
D．By measuring real-life size.
4.What’s Qia Wang’s attitude towards the future of the software?
A．Casual． B．Optimistic． C．Cautious． D．Flexible
5.What is the best title of the text?
A．Qia Wang，a Talented Doctoral Student
B．Use Smartphones to Their Full Potential
C．Targeting and Tracking With Smartphones
D．Smartphone-armed Soldiers on the Battlefield
高三英语阅读理解中等难度题查看答案及解析
Researchers have developed new software using smart phones’GPS and imaging abilities that determine the exact location of distant objects as well as monitor the speed and direction of moving objects．The software could eventually allow smart phone-armed soldiers to target the location of their enemies．On the home front，the software could be used by everyone，including golfers judging distance to the green and biologists documenting the location of a rare animal without disturbing it．
“The great advantage of a Smartphone is that it provides so many tools in a single，readily available，relatively inexpensive package，”said Qia Wang，a doctoral student who led the development of the software．“For example，on the battlefield，a soldier needs a rangefinder，compass，GPS and other tools to get information before calling in an air strike．With our software，the soldier can have all those instruments in one device that can be purchased off the shelf．When that soldier returns from War，she can use the same Software to protect her family by clocking a speeder near her children’s school and catching the criminal on video．”
Wang and his colleagues developed their software to locate and track：
Targets of known size—when the size of the target is known．a single image is enough to pinpoint the target’s location．
Targets of unknown size—If the exact size of a target is unknown，the software uses two images to triangulate the location of the target·
Moving targets—By taking a short video of a moving target，the smartphone software can calculate how fast the target is moving and in what direction it is going.
“Currently，our software is limited by the physical abilities of smartphone hardware，but the devices are improving rapidly，”Wang said．“We expect that improvements in GPS accuracy，battery life and camera resolution will allow our software to make even more accurate observations．”
1.．From Paragraph 1 we can know that the new software can_______.
A．determine the speed of moving objects
B．1ocate objects in the distance exactly
C．defend soldiers against their enemies
D．help biologists protect rare animal
2.．The example given by Qia Wang is meant to ________________.
A．make an advertisement
B．describe the software briefly
C．show the benefits of the software
D．present the functions of smartphones
3.．How does the software calculate the speed of a moving object?
A．By taking a short video． B．By locating its position.
C．By taking a single image．D．By measuring real-life size.
4.．What’s Qia Wang’s attitude towards the future of the software?
A．Casual． B．Optimistic．
C．Cautious．D．Flexible
5.．What is the best title of the text?
A．Qia Wang，a Talented Doctoral Student
B．Use Smartphones to Their Full Potential
C．Targeting and Tracking With Smartphones
D．Smartphone-armed Soldiers on the Battlefield
高三英语阅读理解中等难度题查看答案及解析
Some houses are designed to be smart. Others have smart designs. An example of the second type of house won an Award of Excellence from the American Institute of Architects.
Located on the shore of Sullivan’s Island off the coast of South Carolina, the award-winning cube-shaped beach house was built to replace one smashed to pieces by Hurricane（飓风）Hugo 10 years ago. Before Hugo, many new houses built along South Carolina’s shoreline were poorly constructed, and enforcement of building rules wasn’t strict, according to architect Ray Huff, who created the cleverly-designed beach house. Soon after Hugo, all new shoreline houses are required to meet stricter, better-enforced rules. The new beach house on Sullivan’s Island should be able to withstand a Level 3 hurricane with peak winds of 179 to 209 kilometers per hour.
At first sight, the house on Sullivan’s Island looks anything but hurricane-proof. Its redwood shell makes it resemble “a large party lantern (灯笼)” at night, according to one observer. But looks can be misleading. The house’s wooden frame is reinforced with long steel rods to give it extra strength.
To further protect the house from hurricane damage. Huff raised it 2.7 meters off the ground on timber pilings－long, slim wood pieces anchored deep in the sand. Pilings might appear insecure, but they are strong enough to support the weight of the house. They also raise the house above storm waves. The pilings allow the waves to run under the house instead of running into it. ‘These waves come ashore at terrible speeds and cause most of the damage done to beach-front buildings,” said Huff.
Huff designed the timber pilings to be partially hidden by the house’s ground-to-roof shell. “The shell masks the pilings so that the house doesn’t look like it’s standing with its pant legs (裤腿) pulled up,” said Huff. In the event of a storm, the shell should break apart and let the waves rush under the house, the architect explained.
1.After the Hurricane Hugo, new houses built along South Carolina’s shore line are required .
A. to be easily reinforced B. to meet stricter building standards
C. to look smarter in design D. to be designed in the shape of cubes
2.Why is the award-winning beach house strong and hurricane-proof?
A. It is in the shape of a shell. B. It is made of redwood.
C. It is strengthened by steel rods. D. It is built with timber and concrete.
3.What’s the purpose of Huff raising the house 2.7 meters off the ground on timber pilings?
A. To anchor stronger pilings deep in the sand.
B. To prevent water from rushing into the house.
C. To withstand peak winds of about 200 km/hr.
D. To make the house look more hurricane-proof.
4.According the last paragraph, the main function of the shell is .
A. to give the house a better appearance
B. to strengthen the pilings of the house
C. to protect the wooden frame of the house
D. to slow down the speed of the big waves
高三英语阅读理解困难题查看答案及解析
Some houses are designed to be smart. Others have smart designs. An example of the second type of house won an Award of Excellence from the American Institutes of Architects.
|
At first sight, the house on Sullvan’s Island looks anything but hurricane-proof. Its redwood shell makes it resemble “a large party lantern” at night, according to one observer. But looks can be cheating. The house’s wooden frame is reinforced with long steel bars to give it extra strength.
To further protect the house from hurricane damage, Huff raised it 2.7 meters off the ground on timber pilings – long, slender columns of wood anchored deep in the sand. Pilings might appear insecure, but they are strong enough to support the weight of the house. They also elevate the house above storm attacks. The pilings allow the waves to run under the house instead of running into it. “These swells of water come on shore at tremendous speeds and cause most of the damage done to beach-front buildings,” said Huff.
Huff designed the timber pilings to be partly masked by the house’s ground-to-roof shell. “The shell masks the pilings so that the house doesn’t look like it’s standing with its pant legs pulled up,” said Huff. In the event of a storm surge, the shell should break apart and let the waves rush under the house, the architect explained.
1.After the tragedy caused by Hurricane Hugo, new ho uses built along South Carolina’s shore line are required________.
A．to be easily reinforced B．to look smarter in design
C．to meet stricter building standards D．to be designed in the shape of cubes
2.The award-winning beach house is quite strong because________.
A．it is strengthened by steel bars B．it is made of redwood
C．it is in the shape of a shell D．it is built with stone and concrete
3.Huff raised the house 2.7 meters off the ground on timber pilings in order to ________.
A．withstand peak winds of about 200 km/hr
B．strike stronger pilings keep into the sand
C．break huge sea waves into smaller ones
D．prevent water from rushing into the house
4.The main function of the shell is.
A．to strengthen the pilings of the house
B．to give the house a better appearance
C．to protect the wooden frame of the house
D．to slow down the speed of the swelling water
高三英语阅读理解简单题查看答案及解析
Some houses are designed to be smart. Others have smart designs. An example of the second type of house won an Award of Excellence from the American Institute of Architects.
Located on the shore of Sullivan's Island off the coast of South Carolina, the award-winning cube-shaped beach house was built to replace one smashed to pieces by Hurricane Hugo 10 years ago. In September 1989, Hugo struck South Carolina, killing 18 people and damaging or destroying 36,000 homes in the state.
Before Hugo, many new houses built along South Carolina's shoreline were poorly constructed, and enforcement of building codes wasn't strict, according to architect Ray Huff, who created the cleverly-designed beach house. In Hugo's wake, all new shoreline houses are required to meet stricter, better-enforced codes. The new beach house on Sullivan's Island should be able to resist a Category 3 hurricane with peak winds of 179 to 209 kilometers per hour.
At first sight, the house on Sullivan's Island looks anything but hurricane-proof. Its redwood shell makes it resemble "a large party lantern" at night, according to one observer. But looks can be deceiving. The house's wooden frame is reinforced with long steel rods to give it extra strength.
To further protect the house from hurricane damage, Huff raised it 2.7 meters off the ground on timber pilings—long, slender columns of wood anchored deep in the sand. Pilings (桩) might appear insecure, but they are strong enough to support the weight of the house. They also elevate the house above storm waves. The pilings allow the waves to run under the house instead of running into it. "These swells of water come ashore at tremendous speeds and cause most of the damage done to beach-front buildings," said Huff.
Huff designed the timber pilings to be partially concealed by the house's ground-to-roof shell. " The shell masks the pilings so that the house doesn't look like it's standing with its pant legs pulled up, " said Huff. In the event of a storm surge, the shell should break apart and let the waves rush under the house, the architect explained.
1.After the tragedy caused by Hurricane Hugo, new houses built along South Carolina's shore line should ________.
A. be easily reinforced
B. look smarter in design
C. satisfy higher building standards
D. be designed in the shape of cubes
2.Huff raised the house 2.7 meters off the ground on timber pilings in order to ________.
A. withstand peak winds of about 200 km/hr
B. make stronger pilings deep in the sand
C. break huge sea waves into smaller ones
D. prevent water from rushing into the house
3.The main function of the shell is ________.
A. to strengthen the pilings of the house
B. to give the house a better appearance
C. to protect the wooden frame of the house
D. to slow down the speed of the swelling water
4.It can be inferred from the passage that the shell should be ________.
A. fancy-looking B. water-proof
C. easily breakable D. extremely strong
高三英语阅读理解中等难度题查看答案及解析
The auto company succeeded in developing a new type of new energy vehicle, ________ countless failure.
A.experiencing B.to experience C.to have experienced D.having experienced
高三英语单项填空困难题查看答案及解析
阅读下面材料，在空白处填适当的内容（1个单词）或括号内单词的正确形式。
Recently a new type of reusable mask developed by a Ningbo-based company 1.(enter)the market. Unlike surgical masks, this new product, uses a nanomaterial membrane (纳米膜), rather than the 2.(type) melt-blown fabric, to filter (过滤) bacteria and viruses.
Laboratory tests and 3.third party report show that the mask has achieved the same quality standards of the N95 mask, which can filter 95 percent of tiny objects with a diameter of at least 75 nanometers. The masks are also comfortable, easy to breathe 4.. What’s better, depending on the user's setting and wear time, the mask can 5.(use)up to 20 times.
The mask can also resist repeated sterilization (杀菌) with boiling water, disinfectant,6.alcohol, meaning that people only need to change the filter after wearing it for 12 hours and wash it regularly in hot water at a temperature between 56 and 707.(degree) Celsius for long-term use.
The mask is currently divided into two grades 8.(price) at 6 yuan ($0.89) and 9 yuan,9.(respective). Both are equipped with two replaceable filters. Besides, compared with adult masks, the masks made especially for children are 10.(skin-friendly).
高三英语语法填空中等难度题查看答案及解析