Do you find it difficult to put down your mobile phone? If yes, you are not alone. These days, many people can’t live without their phones. They reach for them as soon as they wake up in the morning. They keep checking their apps, such as QQ and Wechat, to get the latest news.
It may be difficult for these people to give up the bad habit, so Google developed an app called Dashboard to help them. This app helps users manage (管理) the time they spend on their phones.
First, Dashboard allows the users to look at their phone habits. For example, users can see how many times they have unlocked their phones, how many times they have checked their apps, and how much time they spend on each app each day. Once the users see this information, they will be able to make some changes. They can set a time limit (限制) for how long they can use each app every day. After they’ve hit the limit, they won’t be able to use the app until the next day. What’s more, Dashboard can help keep the phones silent when users put their phones down, so they will use the phones less. If you truly want to make full use of your free time instead of spending hours using your phone, this new app is just a good choice. After all, controlling yourself and having a strong will can help you most.
1. Dashboard may be helpful to people who ________.A.can’t use apps like Wechat | B.know little about phones |
C.want to use their phones less | D.would like to get the latest news |
A.Dashboard will keep the phone silent. | B.They can’t use the app that same day. |
C.Dashboard will set a new time limit. | D.Their phone will turn itself off at once. |
A.达到 | B.放弃 | C.敲打 | D.增加 |
A.An app to help you check your information |
B.An app to help you give up all your bad habits |
C.An app to help you make full use of your phone |
D.An app to help you manage your time on your phone |
相似题推荐
【推荐1】As online learning becomes more common and more and more resources are converted to digital form, some people have suggested that public libraries should be shut down and, in their place, everyone should be given an iPad with an e-reader subscription.
Supporters of this idea state that it will save local cities and towns money because libraries are expensive to maintain. They also believe it will encourage more people to read because they won't have to travel to a library to get a book; they can simply click on what they want to read and read it from wherever they are.
However, it would be a serious mistake to replace libraries with tablets. First, digital books and resources are associated with less learning and more problems than print resources. A study done on tablet vs book reading found people read 20-30% slower on tablets, retain 20% less information, and understand 10% less of what they read compared to people who read the same information in print.
Second, it is incredibly narrow minded to assume that the only service libraries offer is book lending. Libraries have a multitude of benefits, and many are only available if the library has a physical location. Some of these benefits include acting as a quiet study space, giving people a way to converse with their neighbors, holding classes on a variety of topics, providing jobs, answering patron questions, and keeping the community connected. A survey conducted in 2015 found that nearly two-thirds of American adults feel that closing their local library would have a major impact on their community. People see libraries as a way to connect with others and get their questions answered, benefits tablets can’t offer nearly as well or as easily.
While replacing libraries with tablets may seem like a simple solution, it would encourage people to spend even more time looking at digital screens, despite the various issues surrounding them. It would also end access to many of the benefits of libraries that people have come to rely on. In many areas, libraries are such an important part of the community network that they could never be replaced by a simple object.
1. What does the underlined word “converted” in Paragraph 1 probably mean?A.changed | B.translated | C.conveyed | D.scanned |
A.it’s inefficient for readers to read on tablets |
B.the only service libraries offer is book lending |
C.public libraries should be replaced with digital devices |
D.digital books and resources encourage people to spend more time reading |
A.persuade people to use libraries | B.emphasize the benefits of libraries |
C.encourage communities to build more libraries | D.compare digital books and resources with real books |
I: Introduction CP: Central point P: Point
Sp: Sub-point (次要点) C: Conclusion
A.![]() | B.![]() | C.![]() | D.![]() |
【推荐2】New App Helps People Remember Faces
Large gatherings such as weddings and conferences can be socially overwhelming. Pressure to learn people’s names only adds to the stress. A new facial-recognition app could come to the rescue, but privacy experts recommend proceeding with caution.
![](https://img.xkw.com/dksih/QBM/2021/7/3/2756123348000768/2757137521852416/STEM/79f14533c1ac42eeb97e9ce3f1625697.png?resizew=144)
The app, called SocialRecall, connects names with faces via smartphone cameras and facial recognition, potentially avoiding the need for formal introductions. “It breaks down these social barriers we all have when meeting somebody,” says Barry Sandrew, who created the app and tested it at an event attended by about 1,000 people.
After receiving an invitation to download SocialRecall from an event organizer, the user is asked to take two selfies and sign in via social media. At the event, the app is active within a previously defined geographical area. When a user points his or her phone camera at an attendee’s face, the app identifies the individual, displays the person’s name, and links to his or her social media profile. To protect privacy, it recognizes only those who have agreed to participate. And the app's creators say it automatically deletes users’ data after an event.
Ann Cavoukian, a privacy expert who runs the Privacy by Design Center of Excellence praises the app’s creators for these protective measures. She cautions, however, that when people choose to share their personal information with the app, they should know that “there may be unintended consequences down the road with that information being used in another context that might come back to bite you.”
The start-up has also developed a version of the app for individuals who suffer from prosopagnosia, or “face blindness,” a condition that prevents people from recognizing individuals they have met. To use this app, a person first acquires an image of someone’s face, from either the smartphone’s camera or a photograph, and then tags it with a name. When the camera spots that same face in real life, the previously entered information is displayed. The collected data are stored only on a user’s phone, according to the team behind the app.
1. SocialRecall is used to ________.A.take photos | B.identify people |
C.organize events | D.make friends |
A.giving names to the photos kept in their smartphones |
B.collecting information previously entered in the phone |
C.providing the information of a person when they first meet |
D.showing the person’s information when it spots a stored face |
A.It may put people’s privacy at risk. |
B.It has caused unintended consequences. |
C.It can prevent some communication disorders. |
D.It is praised by users for its protective measures. |
【推荐3】Noise pollution in cities is causing our health to suffer: one in five Europeans is regularly exposed to sound levels at night that could significantly damage their health, leading to diseases, sleep difficulties and stress. Researchers in Belgium have developed an app called NoiseTube that allows everyone to transform their smartphone into a sound level meter (仪表).
NoiseTube works by recording sound levels and GPS locations. Once launched the app shows decibel (分贝) levels of green or red depending on the level of noise. That information is then sent to the NoiseTube server via the Internet where a “noise map” is produced and then made available to the user.
The project started in 2008 as a new form of data gathering, one that was close to people and of a social concern. “Sound was an obvious choice because everyone has a microphone on their mobile phone, and noise pollution, along with air pollution is an environmental concern. Often the two go hand in hand,” D’Hondt of the NoiseTube project said.
Since its launch, the app has been popular with community groups who want to monitor their own noise levels. They don’t think that city produced noise maps give an enough explanation of the level of noise they are experiencing. City produced noise maps are based on statistical models involving very few actual measurements. NoiseTube on the other hand gives a detailed account of the level of noise experienced at a specific time and location. “Ten people walking the same area from 9am to 10am every day for one week can make a valid (有效的) and detailed map for an area of a couple of blocks,” D’Hondt said.
So far these sorts of noise maps have been produced for a number of European cities. The app has been downloaded by 10, 000 people with 2, 700 people registered on the NoiseTube website.
1. What is the main function of NoiseTube?A.Measure noise levels. |
B.Reduce noise pollution. |
C.Make people aware of noise pollution. |
D.Help treat diseases caused by noise pollution. |
A.NoiseTube is mainly accepted and used by young people. |
B.NoiseTube helps record the location of the noise in detail. |
C.NoiseTube can show the process of drawing noise maps. |
D.NoiseTube is a built-in app in a new kind of smartphone. |
A.How NoiseTube works. |
B.How NoiseTube gathers data. |
C.How NoiseTube was invented. |
D.How noise levels are classified. |
A.They aren’t drawn very clearly. |
B.They are difficult to understand. |
C.They can’t be used without a smartphone. |
D.They can’t show the read noise level of a place. |
【推荐1】Researchers at the Tokyo University of Science (TUS) have developed a groundbreaking sweat biosensor that opens up new possibilities for real-time health monitoring.
Wearable sensors, typically worn directly on the skin, can monitor vital signs such as heart rate, blood pressure, and muscle activity. However, designing chemical sensors for detecting substance in bodily liquid, like sweat, has proven more complex due to issues of skin irritation (刺激) and accuracy when integrated into clothing.
Addressing these challenges, the research team at TUS used a technique called “heat-transfer Printing” to fix a thin, flexible chloride ion (氯离子) sensor onto a clothing base and then integrated it into clothes such as T-shirts. Further, health signs such as chloride ion concentration in sweat can be measured by simply wearing them. By moving the sensor outside of the clothing piece, skin irritation is prevented. The wicking effect (芯吸效应) of fiber helps distributing sweat evenly between the sensor’s electrodes (电极), ensuring stable electrical contact and therefore improving the accuracy.
Additionally, the team carefully selected skin-friendly materials and conducted various experiments using artificial sweat to prove the sensor’s accuracy in measuring chloride ion concentration. To assess its practicality, the team tested the sensor on a volunteer who engaged in a 30-minute exercise on a still bicycle. Measurements of bodily liquid were taken every five minutes and compared with the data collected by the sensor. The wearable sensor reliably measured the concentration of chloride ions in sweat. Moreover, the sensor has the capability to deliver data wirelessly, enabling real-time health monitoring.
This breakthrough can boost the development of advanced healthcare devices that offer precise and convenient monitoring of important health indicators. With the power of these tiny electronics, researchers are pushing the boundaries of healthcare innovation to improve disease prevention and overall well-being.
1. What is paragraph 2 mainly about?A.Varieties of sweat biosensors. |
B.Popularity of wearable equipment. |
C.Complexity in monitoring vital body signs. |
D.Difficulties in designing chemical sensors. |
A.The technique of heat-transfer printing. |
B.The chloride ion sensor. |
C.The wicking effect of fibre. |
D.Selected skin-friendly materials. |
A.To evaluate the sensor’s reliability. |
B.To improve the volunteer’s performance. |
C.To determine the sensor’s duration. |
D.To ensure the volunteer’s well-being. |
A.Critical. | B.Expectant. | C.Reserved. | D.Doubtful. |
【推荐2】In the hunt for new materials, scientists have traditionally relied on studying in the lab by trial and error. But now a new battery material has been discovered by integrating two computing superpowers: AI and supercomputing. It’s a discovery that focuses on the potential for using computers to help scientists discover materials suited to specific needs.
Calculations (计算) reduce original 32 million materials to just 23 promising options, researchers from PNNL report in a paper. The team then synthesized (合成) and tested one of those materials and created a working battery model. While scientists have used AI to predict materials’ qualities before, previous studies typically haven’t seen that process through to producing the new material. The nice thing about this paper is that it goes all the way from start to finish.
The researchers targeted a desired type of battery material: a solid electrolyte (电解质). In typical batteries, the electrolyte is a liquid. But that comes with dangers, like causing fires. Developing batteries with solid electrolytes is a major aim of materials scientists.
Sorting through the original 32 million materials with traditional physics calculations would have taken tens of years, but with machine learning techniques, which can make quick predictions based on patterns learned from known materials, the calculation produced results in just 80 hours.
First, the researchers used AI to sort the materials based on stability, which narrowed the list down to fewer than 600,000 options. Further AI analysis selected materials likely to have the electrical and chemical qualities necessary for batteries. That left the researchers with 23 options. Researchers picked a material with suitable stability and conductivity. Then they set to work synthesizing it, eventually making it into a model battery. And it worked.
“That’s when we got very excited,” says materials scientist Vijay. Going from the synthesis stage to the functional battery took about six months. “That is superfast.” The study is one of many efforts to use AI to discover new materials in the future. He says he hopes others will pick up the tool and use it for a variety of scientific efforts.
1. What did researchers from PNNL do?A.They created a new type of battery. | B.They combined AI and supercomputing. |
C.They helped scientists meet specific needs. | D.They studied the potential for using computers. |
A.A paper on producing the new material. | B.The dangers of liquid electrolyte. |
C.The speed of the research. | D.A new battery material. |
A.Supporting information of the research results. |
B.Potential significance of the research methods. |
C.A further explanation of the research findings. |
D.A faithful description of the research process. |
A.Pessimistic. | B.Indifferent. | C.Positive. | D.Unclear. |
【推荐3】A Pittsburgh-based robotics and engineering startup recently promoted Moonwalkers, a pair of battery-powered shoes that it claims can boost walk speeds by up to 250%.
Although they may look like just another set of electric roller skates, the Moonwalkers are actually a bit different. You walk as you’re wearing them the way you would regular shoes or sneakers, letting the motorized wheels put a spring in your step. Powered by a state-of-the-art brushless DC motor, this smart appliance is actually a platform that can be attached to a wide variety of footwear to significantly increase your walking speed up to a reported 7mph/11kph. For comparison, humans’ average walking speed ranges from 2. 5. to 4 mph.
As the wearer walks, a 300W brushless motor in each 4. 2-lb(1. 9-kg)Moonwalker spins up the device’s eight polyurethane(聚氨基甲酸乙酯)wheels, providing a sense of like walking on a “moving sidewalk” in an airport. There is also an Al-powered gearbox(变速箱)that increases or decreases speed according to data regarding the wearer’s walk collected by a series of sensors. The shoes are also able to detect downhill movement to prevent accidents.
“Moonwalkers are not skates. They’re shoes. The world’s fastest shoes actually,” Xunjie Zang, founder and CEO of Shift Robotics said. “You don’t skate in them. You walk. You don’t have to learn how to use them, the shoes learn from you.”
But do the world’s fastest shoes work on uneven place, or things like stairs? We all know how tricky those are to walk in rollerskates. Well, apparently the designers took that into consideration and created a part that allows the wearer to lock the wheels so that they can walk up or down stairs as they would in regular footwear. Just using simple foot movements, it’s possible to switch between Shift and Lock modes. In Shift, the wheels are free to spin as the user walks. In Lock, however, they remain locked in place. This means that the user can do things like climbing stairs or even just standing in one place, without worrying about their feet rolling out from underneath them.
1. What function is expected of Moonwalkers?A.To walk on the moon more safely. | B.To accelerate the walking speed. |
C.To make wearers skate automatically. | D.To provide wearers with timely warning |
A.Smart. | B.Demanding. | C.Costly. | D.Risky. |
A.To explain a rule clearly. | B.To further present a fact. |
C.To clarify a fashion concept. | D.To make a sound prediction. |
A.Moonwalks Are On Sale | B.The World’s Fastest Walking Shoes |
C.The World’s Most Advanced Robotic Company | D.New Rollerskates Come into Existence |
【推荐1】As we all know, Los Angeles has many highways. It’s also a city in the world where big cats wander wild inside the city boundaries. But big cats and highways do not mix. That is why Los Angeles will construct one of the world’s wildlife passages to protect these cats.
The cats mentioned above are mountain lions. They live in the Santa Monica Mountains. Their numbers don’t change much. Their habitat is mostly untouched wilderness, full of deer, the lions’ main food. The ecology of their mountains is healthy, thanks to their existence at the top of the food chain. Yet genetic (基因的) worsening can be just as deadly.
Route 101 cuts the Santa Monica Mountains off from a larger wilderness to the North. The result is a trapped population in the South and genetic worsening. A study in 2016 found that, considering their natural environment, the Santa Monica mountain lions’ chances of extinction in 50 years would be 15-22%, in contrast to 99.7% because of their genetic worsening.
Another study found that the big cats were suffering physical damage: a 90-degree kink (结) in the tail and problems in sexual organs (器官). In the early 1990s biologists found that Florida puma, a closely related animal, had the same genetic weaknesses. The Florida puma escaped extinction only thanks to the introduction of females brought from Texas to refresh the gene pool.
California does not need to go that far like Florida. There are healthy mountain-lion populations north of the Santa Monica Mountains, separated by the road. But hidden cameras show the animals stood at the side of the highway, not daring to cross. And the construction of the passage will largely solve the problem.
The animals become adults at 2.5 to 3 years and have babies every two years. So within ten years of the passage’s completion, the grandchildren of the first mating (交配) beyond the mountains could have babies. Genetically, even a few matings would make a difference. “The passage will definitely save the mountain lion,” thinks Paul Edelman of the Mountains Recreation and Conservation Authority.
1. What is the major threat to these mountain lions?A.Habitat loss. | B.Lack of food sources. |
C.Genetic worsening. | D.Decreased female numbers. |
A.The emergency of the problem. |
B.Comparison between the two animals. |
C.The problems the mountain lions are facing. |
D.Solution to mountain lions' potential extinction. |
A.The mountain lions will be free from extinction. |
B.The problem of genetic worsening can be largely solved. |
C.Los Angeles will own the only wildlife passage in the world. |
D.The grandchildren of the first mating will be born within 10 years. |
A.Positive. | B.Negative. | C.Doubtful. | D.Uninterested. |
【推荐2】Look carefully and you’ll find musicians at the top of almost any industry. The television broadcaster Paula Zahn(cello) and the NBC chief White House correspondent Chuck Todd (French horn) attended college on music scholarships; Both Microsoft’s Mr. Allen and the venture capitalist Rogar MeNamee have rock bands. Lorry Page, a co-founder of Google, played saxophone in high school. The former World Bank president James D. Wolfensohn has played cello at Carnegie Hall.
The connection isn’t a coincidence. I know because I asked. I put the question to top-flight professionals in industries from tech to finance to media, all of whom had serious (if often little-known) past lives as musicians. Almost all made a connection between their music training and their professional achievements.
Will your school music program turn your kid into a Paul Allen, the billionaire co-founder of Microsoft (guitar)? Or a Woody Allen(clarinet)? Probably not. These are outstanding achievers. But the way these and other visionaries (有远见的人) I spoke to process music is interesting.
But the key question is: why does that connection exist? Paul Allen offers an answer. He says music “establish your confidence in the ability to create.” He began playing the violin at age 7 and switched to the guitar as a teenager. Even in the early days of Microsoft, he would pick up his guitar at the end of marathon days of programming. The music was the emotional analog (类比) to his day job, both of them show his different creativity. He says, “something is pushing you to look beyond what currently exists and express yourself in a new way.”
For many of the high achievers I spoke with, music functions as a “hidden language,” as Mr. Wolfensohn calls it, one that enhances the ability to connect different or even opposite ideas. When he ran the World Band, Mr.Wolfensohn traveled to more than 100 countries, often taking in local performances (and occasionally joining in on a borrowed cello), which helped him understand “the culture of people”.
Consider the qualities these high achievers say music has sharpened: cooperation, creativity, discipline and the capacity to coordinate (协调) conflicting ideas. All are qualities obviously absent from public life. Music may not make you a genius, or rich, or even a better person. But it helps train you to think differently, to process different points of views - and most important, to take pleasure in listening.
1. The reason why the author quote so many outstanding people as examples in the first paragraph isA.to prove the popularity and the charm of music |
B.to prove all winners are musicians before |
C.to encourage kids to choose school music program |
D.to prove the connection between success and music |
A.Are success related to music or not? |
B.Why do you choose music training? |
C.What’s the benefit of learning music? |
D.Why do you give up the career as a musician? |
A.Everybody knows those well-known people are musicians before. |
B.Musicians exist in all industries. |
C.Music can certainly make you become a better person. |
D.Music helps Mr. Wolfensohn have a better understanding of the different culture. |
A.many musicians are found at the top of almost any industry |
B.music plays an important role in achieving success |
C.music can provide a new way to express yourself |
D.music is an absolute necessity for everyone |
A.by classification | B.by comparison | C.by example | D.by process |
【推荐3】Are you single or married? Are you a cat or a dog owner? Do you exercise, or are you a “couch potato” (a person who sits on the sofa all day watching TV, eating and basically doing nothing)? These questions and many others are about your lifestyle.
People in the United States feel that they can choose their lifestyles and even shape their own identities. The great variety of lifestyles leads to constant national discussion of choices that people make. This freedom of choice is fun and exciting, but it also creates stress and uncertainty. In newspapers, lifestyle issues are discussed in the features or style section. In The Chicago Tribune this section is called “Tempo”. People turn to this section for lively discussion on lifestyle choices they face with regard to their personal identities, their families, and their social lives.
Many American people believe that they can make their lives happy and satisfying despite their problems. If they lack confidence or tend to feel anxious, shy, angry, or depressed, they believe that they can change themselves. Self-help books, magazines, and feature articles are filled with advice from experts about steps to take to become a happier or more satisfied person and to improve one’s self-respect. Part of this research for self-improvement is a belief that even one’s own appearance can be controlled. This is why there are so many articles in the newspaper about looking young, wearing the latest fashions, and becoming physically fit.
Lifestyle choices also involve moral and social issues. How should children be raised? How should people behave on a date? How should elderly people be treated? How can people stay happily married? All these kinds of issues are constantly discussed and are constantly changing. Not only are experts such as psychologists consulted, but stars from the political and entertainment worlds are held up as lifestyle leaders as well. In the newspaper, feature articles called profiles discuss in detail the personal lives or public work of movie stars, authors, artists, and exceptional individuals who are not stars. The lifestyle choices these people make contribute to the public discussion of all the issues that people think about.
A well-known advertising slogan is “Just do it. ” In the culture of the United States, people believe that they can take action and become the kind of people they want to be and live the way they want to live.
1. The section “Tempo” in The Chicago Tribune mainly discusses ______.A.lifestyle choices |
B.current affairs |
C.experts’ opinions on life |
D.how to improve one’s self-respect |
A.control their own appearance |
B.solve all the problems in their life |
C.live a happy life in spite of their problems |
D.improve their life by following the elders’ advice |
A.their superiors |
B.family members |
C.friends and colleagues |
D.experts and famous people |
A.Just Do It |
B.Make Our Lives Happy |
C.Lifestyles in the United States |
D.Choosing the Way We Live |