A team of scientists from University of Freiburg in Germany are developing a shoe with a sensor to automatically tie its laces(鞋带)that could be taken off when users click their heels together.
It’s been 26 years since we saw them magically tightening Marty McFly’s Nike boots in the film Back to The Future.
Now,self-tying shoelaces could actually become a reality this year,proving right one of the film’s fantastical predictions for what 2015 would be like.
Engineers have designed a shoe that can automatically lace up,adjusting itself to the shape of your foot.
Simply slip the controller on and pressure sensors will tell the ‘smart shoe’ when your foot is in position,triggering(触发)a tiny motor in the heel that pulls the laces tight.
When you want to take off the shoes,you click your heels together twice and the motor will release a spring(弹簧)in the shoe’s tongue,which loosens the laces enough for you to slip them off.
And the invention doesn’t even need to be plugged in to charge or have its battery replaced because it runs on power generated by the swing of your foot as you walk.
Engineer K1evis Ylli,of the Institute for Micromachining and Information Technology in southern Gemany,said the shoes could help a variety of different people.
“One focus is that it could be used in shoes for elderly people who have mobility problems,”he said.“But it could also work for children,or as a lifestyle product.”.
The design,which is still in a prototype(雏形)stage,cleverly gets the energy of the foot’s swing when opposing magnets in each shoe move past each other. It then uses that power to charge a battery.An hour of walking is enough to tighten the laces once,and it requires no energy to undo the shoes because that relies on the spring alone.
1.Which of the following can be the best title of the text?
A.A fantastical prediction
B.A great invention in Germany
C.A shoe with self-tying laces
D.A popular lifestyle product
2.What can we learn about the shoes?
A.They can automatically take off.
B.They can adjust themselves to your foot.
C.They need to be charged once.
D.They have been in design for 26 years.
3.From the last paragraph we can know ____________.
A.the shoes have been put into use
B.the shoes need power to take off
C.the shoes promise to be popular
D.how the shoes work to produce energy
高三英语阅读理解中等难度题
A team of scientists from University of Freiburg in Germany are developing a shoe with a sensor to automatically tie its laces(鞋带)that could be taken off when users click their heels together.
It’s been 26 years since we saw them magically tightening Marty McFly’s Nike boots in the film Back to The Future.
Now,self-tying shoelaces could actually become a reality this year,proving right one of the film’s fantastical predictions for what 2015 would be like.
Engineers have designed a shoe that can automatically lace up,adjusting itself to the shape of your foot.
Simply slip the controller on and pressure sensors will tell the ‘smart shoe’ when your foot is in position,triggering(触发)a tiny motor in the heel that pulls the laces tight.
When you want to take off the shoes,you click your heels together twice and the motor will release a spring(弹簧)in the shoe’s tongue,which loosens the laces enough for you to slip them off.
And the invention doesn’t even need to be plugged in to charge or have its battery replaced because it runs on power generated by the swing of your foot as you walk.
Engineer K1evis Ylli,of the Institute for Micromachining and Information Technology in southern Gemany,said the shoes could help a variety of different people.
“One focus is that it could be used in shoes for elderly people who have mobility problems,”he said.“But it could also work for children,or as a lifestyle product.”.
The design,which is still in a prototype(雏形)stage,cleverly gets the energy of the foot’s swing when opposing magnets in each shoe move past each other. It then uses that power to charge a battery.An hour of walking is enough to tighten the laces once,and it requires no energy to undo the shoes because that relies on the spring alone.
1.Which of the following can be the best title of the text?
A.A fantastical prediction
B.A great invention in Germany
C.A shoe with self-tying laces
D.A popular lifestyle product
2.What can we learn about the shoes?
A.They can automatically take off.
B.They can adjust themselves to your foot.
C.They need to be charged once.
D.They have been in design for 26 years.
3.From the last paragraph we can know ____________.
A.the shoes have been put into use
B.the shoes need power to take off
C.the shoes promise to be popular
D.how the shoes work to produce energy
高三英语阅读理解中等难度题查看答案及解析
A team of scientists from University of Freiburg in Germany are developing a shoe with a sensor to automatically tie its laces(鞋带)that could be taken off when users click their heels together.
It’s been 26 years since we saw them magically tightening Marty McFly’s Nike boots in the film Back to The Future.
Now,self-tying shoelaces could actually become a reality this year,proving right one of the film’s fantastical predictions for what 2015 would be like.
Engineers have designed a shoe that can automatically lace up,adjusting itself to the shape of your foot.
Simply slip the controller on and pressure sensors will tell the ‘smart shoe’ when your foot is in position,triggering(触发)a tiny motor in the heel that pulls the laces tight.
When you want to take off the shoes,you click your heels together twice and the motor will release a spring(弹簧)in the shoe’s tongue,which loosens the laces enough for you to slip them off.
And the invention doesn’t even need to be plugged in to charge or have its battery replaced because it runs on power generated by the swing of your foot as you walk.
Engineer K1evis Ylli,of the Institute for Micromachining and Information Technology in southern Gemany,said the shoes could help a variety of different people.
“One focus is that it could be used in shoes for elderly people who have mobility problems,”he said.“But it could also work for children,or as a lifestyle product.”.
The design,which is still in a prototype(雏形)stage,cleverly gets the energy of the foot’s swing when opposing magnets in each shoe move past each other. It then uses that power to charge a battery.An hour of walking is enough to tighten the laces once,and it requires no energy to undo the shoes because that relies on the spring alone.
1.Which of the following can be the best title of the text?
A.A fantastical prediction
B.A great invention in Germany
C.A shoe with self-tying laces
D.A popular lifestyle product
2.What can we learn about the shoes?
A.They can automatically take off.
B.They can adjust themselves to your foot.
C.They need to be charged once.
D.They have been in design for 26 years.
3.From the last paragraph we can know ____________.
A.the shoes have been put into use
B.the shoes need power to take off
C.the shoes promise to be popular
D.how the shoes work to produce energy
高三英语阅读理解中等难度题查看答案及解析
In cooperation with German experts, Several scientists from the University of Bradford believe that they finally solved a mystery that has been confusing millions of people: why our hair turns gray with age.
The researchers came up with their results by examining native hair and cells from human hair follicles(毛囊). They say the secret turns out to be hidden in catalase(过氧化氢酶), which is causing hair to turn gray.
Catalase production goes down with age and stress, allowing hydrogen peroxide(过氧化氢) in the hair to do its favorite job—making hair gray, and then white, by blocking the normal production of melanin(黑色素). Melanin is our hair's natural pigment that is responsible for the color of hair. It also determines the color of our eyes and skin.
Dr. Gerald Weizmann, an editor of a journal, says," All of our hair cells make a tiny bit of hydrogen peroxide, but as we get older, this little bit becomes quite a lot, and our hair turns gray and then white."
The new study brings hope for millions of people who have to color their hair: to finally obtain some shampoo that will decrease levels of hydrogen peroxide and therefore restore gray or white hair to its natural color or even prevent it from turning gray.
The researchers are already conducting an experiment with such a drug on a few volunteers with gray hair and expect to get the results in the next two to three months. If everything works out, millions of people will choose between this drug and other previously used expensive dyes. However, even if the drug works, it will take at least several years before it can be brought to the market.
1.What is the passage mainly about?
A. The effect that gray hair has on people.
B. The chemical elements of people's hair.
C. The reason why people's hair turns gray.
D. New drugs to prevent people's hair from turning gray.
2.According to the passage, people's hair turns gray because of______.
A. a decrease in catalase B. the death of hair cells
C. the production of melanin D. a decrease in hydrogen peroxide
3.Which of the following statements is TRUE according to the passage?
A. The new study shows it's harmful to color our hair with dyes.
B. Dr. Gerald Weizmann is in charge of the new drug experiment.
C. Our hair cells make lots of hydrogen peroxide when we are young.
D. We may restore our gray or white hair to its natural color with shampoo.
4.What can we learn from the last paragraph?
A. Only a small number of people can use the new drug.
B. Most of the volunteers in the experiment are old people.
C. The drug cannot be brought to the market soon even if it works.
D. The researchers have already known the results of the experiment.
高三英语阅读理解困难题查看答案及解析
Scientists in UK have grown a living human "brain". The team at Aston University created tiny bunch of cells which act like a mini nervous system.
They believe it could help find a cure for worse mental conditions like Parkinson’s disease. Professor Michael Coleman is leading the research program. He explained, "We are aiming to be able to study the human brain at the most basic level, using an actual living human cell system. Cells have to be alive and operating efficiently to enable us to really understand how the brain works. "The experiment involves changing cells from a cancer tumour (肿瘤)and making them behave like brain cells.
Although far from finished, researchers hope the false brain cells will give them a greater understanding of how real brains work. This, in turn, could significantly further research into conditions which affect the brain. Neil Hunt, chief leader of the research group, said, "It is still very early days, but in the future the research could lead to a useful tool for looking into dementia (痴呆)."
The technique could also provide a way to carry on animal test and is being supported by the Humane Research Trust (HRT). The scientists predict that over the next ten years a million people will develop dementia. Professor Coleman believes their findings could change this. He said,"We hope our research will provide scientists with a new and highly relational human experimental model to help them understand the brain better and develop new drugs to control the related disease. However, the biggest challenge at present is that we are greatly short of fund, which will slow our research."
1.UK scientists grow a living human "brain" in order to ______.
A. study the structure of human brain B. make use of living human cell system
C. discover how human brain really works D. separate cells from a cancer tumour
2. According to Neil Hunt, research into brain cells ______.
A. will get finished as early as possible B. will make people discover dementia
C. will affect the brain growth in many ways
D. will help to treat some diseases in nerve system
3. From the last paragraph,we can know that ______
A. the technique provided by HRT is immature
B. animal tests are no longer allowed by law
C. a million people suffer from brain diseases
D. the research program lacks financial support
4. The text is intended to ______.
A. tell us about a breakthrough in medical research
B. introduce a research program in human's brain
C. introduce the progress of drugs for dementia
D. tell us about health problem in nerve system
高三英语阅读理解中等难度题查看答案及解析
Scientists in UK have grown a living human "brain". The team at Aston University created tiny bunch of cells which act like a mini nervous system.
They believe it could help find a cure for worse mental conditions like Parkinson’s disease. Professor Michael Coleman is leading the research program. He explained, "We are aiming to be able to study the human brain at the most basic level, using an actual living human cell system. Cells have to be alive and operating efficiently to enable us to really understand how the brain works. "The experiment involves changing cells from a cancer tumour (肿瘤)and making them behave like brain cells.
Although far from finished, researchers hope the false brain cells will give them a greater understanding of how real brains work. This, in turn, could significantly further research into conditions which affect the brain. Neil Hunt, chief leader of the research group, said, "It is still very early days, but in the future the research could lead to a useful tool for looking into dementia (痴呆)."
The technique could also provide a way to carry on animal test and is being supported by the Humane Research Trust (HRT). The scientists predict that over the next ten years a million people will develop dementia. Professor Coleman believes their findings could change this. He said,"We hope our research will provide scientists with a new and highly relational human experimental model to help them understand the brain better and develop new drugs to control the related disease. However, the biggest challenge at present is that we are greatly short of fund, which will slow our research."
1.UK scientists grow a living human "brain" in order to ______.
A. study the structure of human brain
B. make use of living human cell system
C. discover how human brain really works
D. separate cells from a cancer tumour
2.According to Neil Hunt, research into brain cells ______.
A. will get finished as early as possible
B. will make people discover dementia
C. will affect the brain growth in many ways
D. will help to treat some diseases in nerve system
3.From the last paragraph,we can know that ______
A. the technique provided by HRT is immature
B. animal tests are no longer allowed by law
C. a million people suffer from brain diseases
D. the research program lacks financial support
4.The text is intended to ______.
A. tell us about a breakthrough in medical research
B. introduce a research program in human's brain
C. introduce the progress of drugs for dementia
D. tell us about health problem in nerve system
高三英语阅读理解中等难度题查看答案及解析
短文改错。
A foreign student graduated with honors from a finely university in Germany. He expected to find a good job and have a bright future.But in his disappointment, he wasn't even giving the chance for an interview! The third time he was refused, he phoned the company to ask how.“We don't employ dishonest people in Germany” is the answer. What was wrong? Shortly before he arrived in Germany, he found easy to steal subway rides. But he often rode without a ticket and was caught up three times. Now he had to pay a high price for his own behavior. We should all keep in minds: honesty is the best policy.
高三英语短文改错简单题查看答案及解析
A foreign student graduated with honors from a finely university in Germany. He expected to find a good job and have a bright future. But in his disappointment, he wasn't even giving the chance for an interview! The third time he was refused, he phoned the company to ask how. "We don't employ dishonest people in Germany" is the answer. What was wrong? Shortly before he arrived in Germany, he found easy to steal subway rides. But he often rode without a ticket and was caught up three times. Now he had to pay a high price for his own behavior. We should all keep in minds: honesty is the best policy.
高三英语短文改错中等难度题查看答案及解析
Are you an early riser or a night owl? Researchers from Aachen University in Germany believe that about 10 percent of people can be classified as “morning people”, who feel more active and function best in the morning.Around 20 percent are night owls—people who naturally tend to stay up late and are more tired during the day.And the rest of us fall somewhere in between, according to New Scientist.
Previous studies have suggested that early risers are more likely to be happy and healthy while night owls experience worse sleep as well as more depression and anxiety during the day.
For a long time, scientists have been trying to find out what causes the differences between the two.A new study suggests that it isn’t just people’s habits—early risers and night owls actually have different brain structures.
Led by Jessica Rosenberg at Aachen University, researchers scanned the brains of 16 early risers, 23 night owls and 20 people with intermediate sleeping hours.They found that the brains of night owls had less “white matter”—which speeds up the transmission(传输) of nerve signals — in brain areas associated with depression.
As you know, after people fly in an airplane from one time zone to another, they often suffer from a confused and tired feeling called “jet lag” because their body clocks are out of sync(不同步的) with the new time zone.It usually takes about a week for their bodies to adjust to the new time.But night owls always have difficulty syncing their bodies to the right time due to their brain structure.“It’s like they suffer from permanent jet lag,” said Rosenberg.
The good news is that it is possible for night owls to turn themselves into morning people.According to the researchers, night owls should try to spend as much time in the sunlight as possible and reduce their exposure to artificial light at night to force their body clocks to shift to a more normal rhythm.
1.What does the article mainly discuss?
A.How to turn early risers into night owls.
B.How our habits influence our sleep patterns.
C.What causes the differences between early risers and night owls.
D.Why early risers are happier and healthier than night owls.
2.We can learn from the article that night owls ________.
A.make up almost a third of the human population
B.have more white matter in their brains than other people
C.are more used to artificial night than sunlight
D.have body clocks that are not in agreement with the actual time
3.Jessica Rosenberg’s research suggests that ________.
A.previous studies about night owls are wrong
B.night owls are affected by jet lag more strongly than others
C.white matter helps our brains work more efficiently
D.brain structure might determine people’s chances of suffering from depression
高三英语阅读理解中等难度题查看答案及解析
An international team of researchers from the University of Oxford have found that the way people use the Internet is closely tied to the seasonal movements in the natural world. Their online species searches follow the patterns of seasonal animal migrations (迁徙).
Migratory birds (候鸟) flood back to where they reproduce every spring. That migratory behavior is accompanied by some human behavior. “In English-language Wikipedia (维基百科), the online searches for migratory species tend to increase in spring when those birds arrive in the United States,” said the lead author John Mittermeier.
And not just birds. Mittermeier and his team surveyed nearly 2.5 billion Wikipedia search records, for 32,000 species, across 245 languages. They also saw variable search rates for insects, horsetails and flowering plants. Seasonal trends seemed to be widespread in Wikipedia behavior for many species of plants and animals.
This finding suggests new ways to monitor changes in the world’s biological diversity. It also shows new ways to see how much people care about nature, and which species and areas might be the most effective targets for conservation.
Mittermeier is encouraged by the search results. He commented, “I think there’s a concern among conservationists (生态环境保护者) that people are losing touch with the natural world and that they’re not interacting with native species anymore. And so in that sense, it was really exciting and quite unexpected for me to see people’s Wikipedia interest closely related to changes in nature.”
Richard Grenyer, Associate Professor from the University of Oxford, says search data is useful to conservation biologists, “By using these big data approaches, we can direct our attention towards the difficult questions in modern conservation: which species and areas are changing, and where are the people who care the most and can do the most to help.”
1.What have researchers found about species searches?
A. They strengthen ties among people.
B. They affect the animal movements.
C. They differ in language backgrounds.
D. They reflect animal migration seasons.
2.What is the purpose of writing Paragraph 3?
A. To summarize the research process.
B. To further support the research findings.
C. To show the variety of species searches.
D. To present researchers’ heavy work load.
3.How does Mittermeier feel about the search results?
A. Satisfied with Wikipedia’s service.
B. Worried about Wikipedia behavior.
C. Amazed at people’s care about nature.
D. Sad about people’s not getting close to nature.
4.Why does Richard think such search data is useful?
A. It helps to aim at conservation targets.
B. It increases interest in big data approaches.
C. It keeps track of trends in biologists’work.
D. It pushes people to solve difficult problems.
高三英语阅读理解中等难度题查看答案及解析
The team of researchers from the University of Lincoln, UK, is designing and building an app to help farmers in hot climates identify and record the spread of locusts(蝗虫) on their land.
By recognizing locusts through the smartphone’s camera, the app will be able to identify the stage of the insect's growth and record its location. This information can then be utilized so that the farmers can use pesticides(杀虫剂) more accurately in the early stages of their life time, greatly reducing the amount of crop damage.
This approach could also reduce remaining pesticide levels, leading to increased food safety while maintaining food security and protecting nearby water systems.
“Each year, approximately 18 million hectares of land are damaged by locusts, influencing hugely farmers and their productivity, explains Dr. Bashir Al-Diri from the School of Computer Science at the University of Lincoln.” Their monitoring techniques currently rely on field surveys by people through digging insect eggs, but this information only helps farmers to make mid and long-term forecasting decisions and can delay effective management measures. By digitally recording the exact number, age and location of locusts, we hope this new app will put more knowledge and more power into the hands of the farmers.
Dr. Al-Diri and his team of computer scientists work with the Lincoln Institute for Agri-food Technology at the University of Lincoln, aiming to support and improve productivity, efficiency and farming through research, education and new technology.
With advanced technology, the developers hope that the app will also be used for a wide range in the future to capture and document information about the natural world. For example, it could easily be adapted to help individuals identify plant diseases or to digitally capture the number and type of birds and wildlife in specific locations as part of national and international surveys.
1.What do we know about the app mentioned in the passage?
A.It has helped farmers record the spread of locusts.
B.It will be of great use for farmers in hot climates.
C.It may cost the farmers more than they expect.
D.It will remind farmers of what the locusts look like.
2.Which can replace the underlined word "utilized” in the passage?
A.Accessed. B.Controlled.
C.Arranged. D.Progressed.
3.What can we know according to Dr. Bashir Al-Diri?
A.Farmers don't know how to deal with locusts.
B.Their techniques can be used to dig insect eggs.
C.Farmers suffer greatly because of locusts.
D.Some steps must be taken before using the app.
4.What is the purpose of Al-Diri and his team?
A.To check if the app is useful in killing locusts.
B.To educate farmers on how to protect themselves.
C.To assist in raising agricultural production level.
D.To direct farmers to change their farming methods.
高三英语阅读理解中等难度题查看答案及解析