To move visual technology into the future, sometimes it helps to make a little noise. Researchers have used sound waves to produce floating 3-D images, create a sense of touch and even supply a soundtrack.
Since the 1940s, scientists have toyed with the concept of acoustic levitation(声悬浮), the use of soundwave vibrations to trap tiny things in midair. The technology has gained greater capabilities in the past decade. Some researchers believe this improvement could lead to applications such as contributing to novel 3-D printing methods, or creating displays that would be visible from any angle without requiring a screen.
Other researchers have also worked on visual displays that use acoustic levitation. In addition to visuals, the system can also produce audible noise to give the display a soundtrack. And the ultrasound speakers can also concentrate vibrations in one spot so that a finger might feel a sense pushing back—a little like the object shown by the floating image is really there. Soundwaves create a 3-D display!
Display without a screen is remarkably useful. It means that everybody in the room can see the image—any angle, location—and that’s extremely helpful. As a communications system, such a display might one day allow users to chat with a 3-D projection(投影) of a person who can turn his or her head to follow as they move around a room.
The display will require a lot more work before you can install it in your living room, however. So far, this has been done in the research laboratory. We need to push it a little bit harder. We need to do more analysis to see if it would make sense to create a real display that people would have at home. The current system can only show simple graphics, such as a smiley face or figure eight, in real time.
Still, we are optimistic about the potential for this type of technology. If the system had only one speaker-covered surface instead of two, it could generate images that are bigger than the device itself. We can’t make a TV image that’s bigger than the TV—even a projector has to have a projection screen that’s bigger than the image itself. But with a volumetric(容积的) display, a small, portable device might produce a much larger picture. We can imagine, in the future, having volumetric displays in watches, for example, that create large images that just project out of your watch.
1.From the first two paragraphs soundwave vibrations can be used to _________.
A.catch very small objects in midair
B.develop 3-D printer’s capabilities
C.replace a creative display screen
D.compose soundtracks by making no noise
2.What do we know about display without a screen?
A.It has resulted in visual technology.
B.It is possible to see the image from any direction.
C.It is already ripe to create a real one at home.
D.It has yet to be tested in the research laboratory.
3.What does the last paragraph mainly talk about?
A.Outlooks for the new technology.
B.Situations of the modern technology.
C.Praise for the cutting-edge technology.
D.Room for the technical improvement.
4.What can be a suitable title for the passage?
A.Hearing Is Seeing—Sound Waves Create a 3-D Display
B.Seeing is Believing—3-D Printing Methods Arrive
C.Advancing Sense of Touch—3-D Images Float in the Air
D.Promoting TV Technology—Chat with 3-D Projections
高三英语阅读理解困难题
To move visual technology into the future, sometimes it helps to make a little noise. Researchers have used sound waves to produce floating 3-D images, create a sense of touch and even supply a soundtrack.
Since the 1940s, scientists have toyed with the concept of acoustic levitation(声悬浮), the use of soundwave vibrations to trap tiny things in midair. The technology has gained greater capabilities in the past decade. Some researchers believe this improvement could lead to applications such as contributing to novel 3-D printing methods, or creating displays that would be visible from any angle without requiring a screen.
Other researchers have also worked on visual displays that use acoustic levitation. In addition to visuals, the system can also produce audible noise to give the display a soundtrack. And the ultrasound speakers can also concentrate vibrations in one spot so that a finger might feel a sense pushing back—a little like the object shown by the floating image is really there. Soundwaves create a 3-D display!
Display without a screen is remarkably useful. It means that everybody in the room can see the image—any angle, location—and that’s extremely helpful. As a communications system, such a display might one day allow users to chat with a 3-D projection(投影) of a person who can turn his or her head to follow as they move around a room.
The display will require a lot more work before you can install it in your living room, however. So far, this has been done in the research laboratory. We need to push it a little bit harder. We need to do more analysis to see if it would make sense to create a real display that people would have at home. The current system can only show simple graphics, such as a smiley face or figure eight, in real time.
Still, we are optimistic about the potential for this type of technology. If the system had only one speaker-covered surface instead of two, it could generate images that are bigger than the device itself. We can’t make a TV image that’s bigger than the TV—even a projector has to have a projection screen that’s bigger than the image itself. But with a volumetric(容积的) display, a small, portable device might produce a much larger picture. We can imagine, in the future, having volumetric displays in watches, for example, that create large images that just project out of your watch.
1.From the first two paragraphs soundwave vibrations can be used to _________.
A.catch very small objects in midair
B.develop 3-D printer’s capabilities
C.replace a creative display screen
D.compose soundtracks by making no noise
2.What do we know about display without a screen?
A.It has resulted in visual technology.
B.It is possible to see the image from any direction.
C.It is already ripe to create a real one at home.
D.It has yet to be tested in the research laboratory.
3.What does the last paragraph mainly talk about?
A.Outlooks for the new technology.
B.Situations of the modern technology.
C.Praise for the cutting-edge technology.
D.Room for the technical improvement.
4.What can be a suitable title for the passage?
A.Hearing Is Seeing—Sound Waves Create a 3-D Display
B.Seeing is Believing—3-D Printing Methods Arrive
C.Advancing Sense of Touch—3-D Images Float in the Air
D.Promoting TV Technology—Chat with 3-D Projections
高三英语阅读理解困难题查看答案及解析
It ___ to me that she didn’t know I had moved into the new house.
A. appeared B. occurred C. happened D. broke
高三英语单项填空中等难度题查看答案及解析
Technology sometimes goes wrong. And the more you use technology, the more you know it can go wrong. A connection drops. A printer will not print or an app crashes. Tech troubles can let users down quickly. First reactions may be to scream，throw the device（设备）against the wall, or cry. 1. By following these steps, you could solve some of the most common tech problems on your own.
Search the Web. Learn about your tech problem on a search website, such as Google. See what others have experienced. Find expert articles about solving the problem. If your issue is with recent technology, such as a software update, be sure to look for the most recent articles. 372.
Check connection speed. Maybe you find that streaming, downloading orupdating is moving slowly. 3. You may think something is wrong with your device when, really, your network is just noe. A website such as Speedtest. net can check your connection speed.
4. Make sure you have the most recenl version of apps and software. You might ba expperiencing a problem from a bug（漏洞）that has been fixed in an update. But if you have not yet had the latest version you may miss the solution.
Ask the developer. 5. You can communicate with developers over email, Twitter or a contact form on their website. Explain the issue giving as much detail as possible, including the device you are using and the problem you are having.
A. Update.
B. Fix bugs.
C. Tech tips from years ago may not work now.
D. Contact the developer of the app or software.
E. Have you ever struggled when technology went wrong?
F. First, be sure to check your Internet connection speed.
G. However, you may be able to solve the problem by yourself.
高三英语七选五中等难度题查看答案及解析
Sometimes it’s hard to imagine how a new technology will affect your life. Nobody thought that 10 years after getting the internet in their homes, they’d be online everywhere and all the time with smart phones. Have a look and get prepared for what’s coming.
Hyperautomation (超级自动化)
Hyperautomation is the combination of machine learning software and automation tools to do work. What does hyperautomation look like? With hyperautomation, the coffeemaker is involved in every step of the process. It uses machine learning to know how much coffee you like to make, what time you like to make it, and how often. It orders more beans for you --your favorite brand - when the amount gets low. It also coordinates(协作)with your dishwasher to make sure your favorite cup is clean and ready. The social robot market is expected to be worth $19 billion by the end of 2025. By then, each home could have robots that rival the intelligence of science fiction’s most beloved droids (机器人),like Star Wars，C-3PO.
Practical Blockchain
Organizations should begin evaluating blockchain (区块链)，which has the potential to change industries . It can provide trust and value exchange throughout society.
Aside from its possible use as a currency, blockchain can also be used to track real-world items. For example, contaminated (被污染的)food - especially vegetables - can be traced back to its date and place of packaging.
There are also so-called “smart” contracts. These are simple programs written into the blockchain. With these, events can trigger actions. For example, if you order from Taobao, your payment is held until the delivery guy marks your shipment “completed”. Then payment is immediately received by the seller. Similarly, a student’s university allowance could be limited by a parent to only be spent on necessary things .
1.What do we know about hyperautomation?
A.It is by nature a computer program. B.It is mainly used in the kitchen.
C.It makes robots in science fiction a reality. D.It has huge commercial potential.
2.How does the author illustrate blockchain?
A.By making comparisons. B.By giving examples.
C.By explaining the process. D.By stating arguments.
3.What benefit can blockchain bring us?
A.Computer programs can be made simpler.
B.The money you pay can directly go to the seller.
C.A revolution in industries may take place.
D.Polluted vegetables will no longer exist.
4.What is the best title for the text?
A.Modem Technology Released B.Automation Evolved
C.World Changed D.Living Standards Improved
高三英语阅读理解中等难度题查看答案及解析
It is expected that in the near future, more advances in the Internet technology________by German scientists.
A．are making B．are made
C．will make D．will be made
高三英语单项填空中等难度题查看答案及解析
Scott Poore is an animal lover. He moves into the shelter kennel(犬舍) with the ______ of helping unwanted young dogs get adopted. Queen, a 3-year-old dog, has just gotten the most ____ roommate despite the narrow living room.
Since Poore is a ______ visitor at the shelter, he is familiar with all of the ______. However, little Queen in particular has really ______ his heart. Poore says that he recently began to ____ that Queen seemed to be" losing ______"in finding a forever home. "I have been ______Queen every single day for over a year and now I can ______ see her giving up," Poore wrote on his blog last week. "She used to get so ______ when I would arrive and now she just lies in her bed and ______ at me. I sit in her room and all she does is look out of her window."
So as a ______ of raising awareness of Queen's situation, Poore ______ a suitcase and moved into the dog's kennel. Poore says it has been ______ managing his work while also living at the shelter, but he is ______ to stay in the kennel until someone adopts Queen. Since he ___ the kennel earlier this week, he and his new canine roommate have been ______ the headlines of dozens of national news outlets, although no potential ______ have stepped forward.
____, this dog has finally been given a loving home after his ______ crossed with that of a woman living on the other side of the country.
1.A.assistance B.exception C.aim D.name
2.A.devoted B.expected C.experienced D.talented
3.A.patient B.regular C.curious D.cautious
4.A.keepers B.investors C.colleagues D.animals
5.A.broken B.stolen C.understood D.lost
6.A.check B.notice C.suspect D.imagine
7.A.happiness B.freedom C.hope D.energy
8.A.visiting B.walking C.instructing D.training
9.A.naturally B.anxiously C.still D.obviously
10.A.excited B.concerned C.amazed D.disappointed
11.A.stands up B.looks down C.jumps down D.stares up
12.A.reward B.means C.consequence D.symbol
13.A.packed B.brought C.purchased D.delivered
14.A.meaningful B.vital C.tough D.unusual
15.A.satisfied B.inspired C.honoured D.determined
16.A.cleared up B.cared for C.settled into D.met with
17.A.hitting B.discussing C.hearing D.encouraging
18.A.customers B.donators C.employers D.adopters
19.A.Increasingly B.Pitifully C.Delightfully D.Deliberately
20.A.view B.path C.mind D.story
高三英语完形填空中等难度题查看答案及解析
Scott Poore is an animal lover. He moves into the shelter kennel(犬舍)with the _______ of helping unwanted young dogs get adopted. Queen, a 3-year-old dog, has just gotten the most _______ roommate despite the narrow living room.
Since Poore is a _______ visitor at the shelter, he is familiar with all of the _______.However, little Queen in particular has really _______ his heart. Poore says that he recently began to notice that Queen seemed to be ''losing _______'' in finding a forever home. ''I have been visiting Queen every single day for over a year now and I can _______ see her giving up. She used to get so _______when I would arrive and now she just lies in her bed. ''
So to raise awareness of Queen’s situation Poore _______ a suitcase and moved into the dog's kennel. Poore says it has been ________ managing his work while also living at the shelter, but he is ________ to stay in the kennel until someone adopts Queen. Since he ________ the kennel earlier this week,he and his new canine roommate have been ________ the headlines of dozens of national news outlets, although no potential ________ have stepped forward.
Delightfully, this dog has finally been given a loving home after his ________ crossed with that of a woman living on the other side of the country.
1.A.help B.aim C.exception D.name
2.A.expected B.devoted C.talented D.experienced
3.A.patient B.curious C.different D.regular
4.A.keepers B.colleagues C.animals D.neighbors
5.A.broken B.lost C.understood D.stolen
6.A.hope B.freedom C.happiness D.energy
7.A.obviously B.naturally C.still D.also
8.A.concerned B.amazed C.excited D.disappointed
9.A.brought B.packed C.delivered D.bought
10.A.unusual B.vital C.meaningful D.tough
11.A.inspired B.determined C.honored D.satisfied
12.A.settled into B.cleared up C.cared for D.met with
13.A.discussing B.hearing C.encouraging D.hitting
14.A.employers B.adopters C.customers D.donators
15.A.story B.view C.path D.mind
高三英语完形填空中等难度题查看答案及解析
How to Create a Mind Map
Most of us think visually but we write textually. 1. It also makes the information we list more difficult to process, remember, and share.
2. It combines the brain’s visual nature with our tendency to write down words. We end up with a diagram that combines logic and order in a less structured manner. This promotes clearer thinking and better comprehension. 3.
So, how do you create a mind map? The most basic method is to just use a pen and paper, or a marker and whiteboard. It begins with a central topic or idea, then flows outward. 4. The next level of topics is represented by branches extending from it.
There aren’t really any rules for creating mind maps. While most flow outwardly from the central topic, some users prefer to build mind maps in one direction. 5. This can make groups of ideas easier to identify and remember. It also makes a mind map more enjoyable to create and use.
Mind maps are extremely effective for taking notes, planning a project, brainstorming an idea, presenting information to others, and many other uses. Take out your pen and have a try.
A. They help to clarify thinking.
B. This goes against how our minds actually work.
C. They help us save time by focusing on key issues.
D. A mind map is the perfect answer to this dilemma.
E. Think of it as a tree, where the central point is the trunk.
F. It’s also a lot more enjoyable than simply writing down lists.
G. Others like to add colors, pictures, or symbols in their mind maps.
高三英语七选五中等难度题查看答案及解析
We hope to move to the country in the ________ future.
A．nearby B．near C．close D．closely
高三英语单项填空中等难度题查看答案及解析
China launched its fifth Beidou orbiter into space on Sunday morning, moving it one step closer to its goal of building a navigation(导航) and positioning satellite network.
The Beidou, or Compass, system is being built to rival the US-developed GPS, the European Union's Galileo and Russia's Global Navigation Satellite System. It can allow travelers, drivers and military officials to know their locations.
The fifth orbiter was launched on top of a Long March 3A carrier rocket at 5:30 am on Sunday from Xichang of Southwest China's Sichuan province.
It is the third Compass satellite launched this year, following launches on Jan 17 and June 2.
The short interval of less than two months since the last launch demonstrated that "the country is stepping into a busy period of launching the Compass satellites", an unnamed official in charge of the project said last month.
The first two orbiters were launched in 2007 and 2009 respectively.
Sun Jiadong, the Beidou program's chief designer, said on June 21 in a TV interview that China would launch 13 to 15 Beidou navigation satellites into orbit by 2012 to form a network that provides regional service covering the neighboring areas.
And in about 10 years, the network would be expanded to include more than 30 satellites covering the globe, he said.
The system is a crucial part of the country's space infrastructure for providing navigation and positioning services in transportation, meteorology, petroleum prospecting, forest fire monitoring, disaster forecasting, telecommunications and public security.
In addition, a global positioning system is crucial to any country's national security and defense, said Ran Chengqi, an official in charge of the program, referring to the fact that the US initially built its GPS system for military purposes.
It is unimaginable for China to go without such a system, he said.
Earlier reports cited（引用） Song Xiaojun, a Beijing-based military expert, as saying that 90 percent of the world's current weapons systems need a global positioning system.
1.This news report was probably released________.
A．in January, 2010 B．in June, 2010 C．in July, 2010 D．in August, 2010
2.The Compass System is expected to finally cover________in the future.
A．China B．China and its neigh boring areas
C．Asia, Europe and Oceania D．the earth
3.At the very beginning, the GPS system was built to help________.
A．military officers to judge their locations B．travelers to know their locations
C．drivers to reach their destinations easily D．hunters to find wild animals smoothly
高三英语阅读理解简单题查看答案及解析