Unit 2 单元话题阅读理解专项练习-2022-2023学年高二英语选择性必修第一册单元重难点易错题精练(人教版2019).docx
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1、Unit 2单元话题阅读理解专项练习(名校最新真题)(2022四川凉山高二期末)A new phone app uses vibrations (振动) from smart phones to alert people about earthquakes. The phone app recognizes sudden shaking of the earths surface through sensors (传感器) in smart phones. The new app is called MyShake. It is the work of four researchers at
2、the University of California, Berkeley. They said they created a worldwide warning system that would inform people and give them time to prepare. The MyShake app is available only for Android phones. Smart phones are equipped with accelerometers (加速计) . These instruments measure movement, like that
3、of a car or airplane. They can also measure the shaking of a machine, building or other structure. Accelerometers are used in activity trackers and apps that count steps or other exercise. They are also used in global positioning system (GPS) apps. MyShake uses phone accelerometers to measure seismi
4、c (地震引起的) activity. It has been programmed to know the difference between normal activity and earthquake movement. The software developers say their app is right 93 percent of the time. A smart phone sends seismic information to the app developers. If the developers receive information from one area
5、, it recognizes that an earthquake may be taking place or will take place soon. Using information sent from the app, the network then estimates the location and strength of the quake in real time. MyShake can record magnitude (规模) 5. 0 earthquakes at distances of 10 kilometers or less. MyShake uses
6、very little power, according to its developers. Only when seismic activity is sensed by the app does it become active and sends data to the network. The app works best when your phone is resting on a flat surface, like a table. The app also shows ways to stay safer during an earthquake. The develope
7、rs say it will become more effective as more people use it.1What can we know about MyShake?AIt can be applied to all kinds of phones.BIt serves as a worldwide warning system.CIts the name of a new smart phone.DIt can prevent and stop the movement of the earth.2How can the phone app feel the earths s
8、haking?AThrough vibrations from smart phones.BThrough information in smart phones.CThrough sensors in smart phones.DThrough accelerometers in smart phones.3Why are accelerometers used in MyShake?ATo locate where the user is.BTo count steps or other exercise.CTo measure seismic activity.DTo measure t
9、he shaking of building.4Whats the best title for the text?AA New Phone App Feels EarthquakesBA New Phone App Prevents EarthquakesCA New Phone App Keeps You Safe in the EarthquakeDA New Phone App Makes Smart Phones More Effective(2022四川省德阳中学校高二期末)Here are some of the interesting inventions in 2021. W
10、hich one are you most excited about?PurrbleIt comes to the rescue for anxious kids. This toy has seven sensors that respond to touch. Purrbles heartbeat speeds up when you play with the toy. Then you comfort it by petting it, which slows its heartbeat down. It calms you too. In a study of 20 familie
11、s, 19 parents said Purrble helped their kids calm down.Revolve AirAndrea Mocellin is a former sports-car designer, who is using his skills to build a wheelchair called Revolve Air that has wheels with a hexagon(六边形) structure. And they fold up, which allows the chair to take up 600 less space than a
12、 standard folding wheelchair. Mocellin aims to get it out by mid-2022. He has nearly 12,000 customers on his waiting list.OrCam ReadReading is a challenge for millions of people who may struggle with poor eyesight or other problems. But with computer vision and artificial intelligence, OrCam Read ca
13、n read any piece of text aloud.Users aim its laser frame(激光框) at a page of a book, a menu, an advertisement, or a screen. Then press a button. After that it instantly starts reading aloud, and can also read text in multiple languages.Robin the RobotA girl, a pneumonia patient, in a clinic had barely
14、 eaten for two days. The staff took it into her room. After chatting and playing games, Robin said goodbye, promising to return only if the girl agreed to eat. Sure enough, she dug in. With big eyes and a cheerful personality, Robin is designed to help kids in hospitals and clinics.5Whats the advant
15、age of Revolve Air?AIts impressive in shape.BIts fit for use in a car.CIts been widely used.DIts convenient to carry.6What should the users do first before OrCam Read starts to read?ATest their eyesight.BScan the text.CUse their cell phones.DSpeak their mother tongue.7Which can communicate with thei
16、r users?APurrble and OrCam Read.BRevolve Air and Purrble.CPurrble and Robin the Robot.DOrCam Read and Revolve Air.(2021广东北京师范大学珠海分校附属外国语学校高二阶段练习)Do you need a human to create a beautiful scent (气味)? Thats the question being asked as artificial intelligence (AI) starts to enter the perfume(香水) indust
17、ry.Companies are increasingly turning to technology in order to create more bestselling, unique fragrances that can be produced in just minutes. Last year, Swiss-based fragrance developer Givaudan Fragrances launched Carto, an artificial intelligence-powered tool to help perfumers(调香师). Through mach
18、ine learning (a way computers improve outcomes automatically by learning from past results) Carto can suggest combinations of ingredients.Using a touch screen, the perfumer can pull together different scents using data from the brands vast library of fragrance formulas (配方) a much more efficient pro
19、cess than using traditional forms. A small robot immediately processes the fragrances into perfumes, making it easier for perfumers to test their new scents.German fragrance house Symrise has gone one step further and teamed up with IBM Research to create an AI called Philyra. Like Carto, Philyra ca
20、nt actually sniff anything. But it is not designed to replace perfumers.“Its machine-learning and sometimes the results have been wrong,” says Claire Viola, vice president of digital strategy fragrance at Symrise. “Its still a project, the more we test, the more it continues to improve. It constantl
21、y needs training.”8What is Carto according to the passage?Aa bestselling unique fragrance.Ba Swiss-based fragrance developer.Can AI-powered tool.Dcombinations of ingredients.9Whats the main idea of para. 3?AThe process of making fragrance.BTwo ways of making fragrance.CThe importance of a small robo
22、t.DThe popularity of a small robot.10What can we infer from Claire Violas opinion on Philyra?AIt will replace perfumers in the near future.BIts the most effective technology to produce perfume.CThe results will be perfect when using it.DWe should train and improve it, because its machine-learning.11
23、In which section of the newspaper can you probably read this passage?ALifestyleBEntertainmentCAdvertisementDScience & technology(2021江西上高二中高二阶段练习)However exciting space travel sounds, astronauts must still suffer with bad food. Now, food in space has to be dehydrated (使脱水) or precooked and stored. T
24、his means astronauts arent really eating fresh food.New technology may change this. Scientific American reports that a specially-designed oven will be sent into space this autumn with NASAs NG-12 cargo mission. Far from the common vacuum-packed meals, astronauts may get to enjoy freshly baked cookie
25、s before the end of 2020.Why arent they baking cookies in space already? For one thing, theres the risk of a fire. Engineers also have to overcome the challenge of micro-gravity(微重力), which prevents heat from circling inside ovens the same way it does on Earth.Astronauts will still have to wait a wh
26、ile before they can have their cookies, though. After baking, the results will be sent back to Earth for safety testing. If successful, this will be the first oven to bake food in space.“ I believe. that will be game-changing for both science and astronauts,” food technology researcher Maeena Naman
27、Shafiee told Scientific American.One of the main diving forces behind this project has been NASAs 2018 research into the effects of “confinement and isolation”. Unlike on the International Space Station (ISS), astronauts traveling out of Earths orbit may not be able to speak to their loved ones on f
28、uture missions, which could lead to negative feelings.Its hoped that the chance to bake and sense familiar smells can bring joy to astronauts.“Is the ISS going to smell like fresh-baked cookies? We dont know,” said NanoRacks communications manager Abby Dickes. “But thats feeling we all know and love
29、. that will make someone feel at home.”Baking cookies in space would mark an important step, offering a small comfort in the difficult and unfamiliar environment of space travel. Astronauts have already grown plants aboard the ISS.With commercial space travel now being planned, who knows what other
30、developments may surprise us in the future?12What can astronauts do with the new oven in space in the future?AThey can cook a mealBThey can eat cookies.CThey can bring more fresh foodDThey can prepare food quickly13According to the passage, why cant astronauts bake cookies in space now?ACooking in s
31、pace needs some special cooking skills.BMicro-gravity makes it dangerous to cook in space.CIts expensive and inconvenient to bring fresh food to the space.DIts difficult to heat food the same way as on Earth because of different gravity.14Which one is NOT the purpose of designing the special oven?AT
32、o prepare some fresh food for astronauts.BTo bring the feeling of home to the astronauts.CTo make improvements in space travel.DTo provide a new game for astronauts to play in space.15The author is most likely to think that the future of astronautical development will be _.AunknownBimaginableCsurpri
33、singDconfusing(2021全国高二课时练习)Your glasses may some day replace your smartphone, and some New Yorkers are ready for the switch. Some in the city cant wait to try them on and use the maps and GPS that the futuristic eyewear is likely to include.“Id use it if I were hanging out with friends at 3 a. m. a
34、nd going to the bar and wanted to see what was open,” said Walter Choo, 40, of Fort Greene.The smartphone-like glasses will likely come out this year and cost between $250 and $600, the Times said, possibly including a variation of augmented reality, a technology already available on smartphones and
35、 tablets that overlays information onto the screen about ones surroundings. So, for example, if you were walking down a street, indicators would pop up showing you the nearest coffee shop or directions could be plotted out and come into view right on the sidewalk in front of you.“As far as a mainstr
36、eam consumer product, this just isnt something anybody needs,” said Sam Biddle, who writes for G. “Were accustomed to having one thing in our pocket to do all these things,” he added, “and the average consumer isnt gonna be able to afford another device thats hundreds and hundreds of dollars.” 9 to
37、5 Google publisher Seth Weintraub, who has been reporting on the smartphone-like glasses since last year, said he is confident that this type of wearable device will eventually be as common as smartphones.“Its just like smartphones 10 years ago,” Weintraub said. “A few people started getting emails
38、on their phones, and people thought that was crazy. Same kind of thing. We see people bending their heads to look at their smartphones, and its unnatural,” he said. “Theres gonna be improvements to that, and this is a step there.”16Which is one of the possible functions of the smartphone-like glasse
39、s?APrograming the opening hours of a bar.BSupplying you with a picture of the future.CProviding information about your surroundings.DUpdating the maps and GPS in your smartphones.17According to Sam Biddle, the smartphone-like glasses are _.Anecessary for teenagersBattractive to New YorkersCavailable
40、 to people worldwideDexpensive for average consumers18What can we learn about the smartphone-like glasses from the last two paragraphs?AThey may have a potential market.BThey are as common as smartphones.CThey are popular among young adults.DThey will be improved by a new technology.(2017全国高考真题)Clou
41、d computing will be in use by about 80 percent of about 600 companies. The trend suggests that data management and storage are moving to cloud computing sellers on a large scale.Touting(兜售)cloud computing as a way to get rid of the costs of buying and maintain in on-site information-technology equip
42、ment, sellers offer it in the form of Software AsAService(SAAS), a delivery model in which software applications are delivered to customers over a web-based network. SAAS can serve the needs of entire companies through huge, web-based platforms. As cloud computing rapidly bccomes the delivery channe
43、l for software developers of all shapes and sizes to get their products to market, offering applications in a cloud is now the rule not the exception. Arelatively small number of sellers are able to offer SAAS to big companies that want company-wide cloud computing, and only the sellers need apply.
44、Although market-share data are hard to come by, the list of companys large enough to offer cloud-computing on this scale is short: Microsoft, Amazon, Google, Salesforce, Rackspace and not many others. The concentration of data and virtual (虚拟)computing in the hands of relatively few sellers raises a
45、n important risk for their customers if the Internet-based systems of any one seller are hacked, the result could be security problems across entire industries in which their customers do Can this small group of cloud-computing sellers effectively respond to the needs of their customers to quickly f
46、ix such a problem and, most importantly, cut off the damage to these companies own customers? Dont think such things cant happen. If hackers can penetrate the Department of Defense, the risk that they will penetrate Microsoft or google cannot be ruled out Compromise of just one of these sellers-even
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2019届人教A版数学必修二同步课后篇巩固探究:2-1-1 平面 WORD版含解析.docx
