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When Purdue University researchers set out to develop a new paint, the goal was to create one that would reflect sunlight away from a building. It turns out they also set an official Guinness world record for the whitest paint on the planet.

“When we started this project about seven years ago, we had saving energy and fighting climate change in mind,” Professor Xiulin Ruan said.

The paint reflects 98.1% of solar radiation while also emitting infrared (红外线的) heat.

Because the paint absorbs less heat from the sun than it emits, a surface coated with this paint is cooled below the surrounding temperature without consuming power. Typical commercial white paint gets warmer rather than cooler, Paints on the market that are designed to reject heat reflect only 80%-90% of sunlight and can’t make surfaces cooler than their surroundings.

“Conventional air conditioners consume power that is often from burning fossil fuel. Meanwhile, while they move the heat from inside of a house to the outside, they turn the electricity into heat and leave even more heat to the surrounding and earth, further causing a heat island effect and warming up the Earth,” Professor Ruan told IFLScience.

“In contrast, our paint does not consume any power, and directly sends off all the heat to the deep space, thus helping cooling down the Earth. According to a previous model, painting 0.5-1% of the Earth’s surface (roofs, roads, cars, unused land, etc) with our paint will stop the warming trend. Painting many human made-structures would be a great way to fight the climate crisis in many ways. The paint is not yet available commercially and the scientists are working with a commercial company to speed up the paint production and put it on the market.

【小题1】What’s the purpose of creating the whitest paint?
A.To make the street cleaner.
B.To help fight climate change
C.To remind people of climate warming.
【小题2】What is unique to the whitest paint?
A.It sets an official standard for the whitest paint on the earth.
B.It turns the light into heat and makes the houses much cooler
C.It makes whatever it’s painted on much cooler than its surroundings.
【小题3】How much solar radiation can the whitest paint reflect back?
A.About 80%.B.About 90%.C.About 98.1%.
【小题4】What’s the best title for the text?
A.The World’s Whitest Paint
B.Paint the Earth White
C.A Wonderful Invention
2023高二·湖北·学业考试
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Feel the Music

We’ve all heard of smart phones, but how about smart clothing?The CuteCircuit company has stepped up the technology beat and invented the SoundShirt, which was designed specifically for people who are deaf or hard of hearing.How does this incredible shirt work?

First, let’s talk about a little science.People who have either all or some hearing loss don’t actually listen to music the way that hearing people do, but they can feel it.Sound is made up of vibrations, called sound waves, which hearing people can hear through their ears with the help of the brain.What’s really cool is that deaf people sense vibrations in the part of the brain that others use for hearing!

So how is this remarkable technology able to function? First, CuteCircuit had to figure out a way to send signals to the body, kind of like how you can feel when your phone vibrates in silent mode.Those connections the body can feel are called haptics, a use of technology that simulates the senses of touch and motion.The SoundShirt has tiny sensors woven into the shirt to pick up sound and transfer signals to the brain and body.

To test this music-to-shirt-to-wearer’s brain connection, CuteCircuit set microphones around the stage of a symphony orchestra.The shirt’s computer system digitally received the sounds coming from the instruments.Then the sensors, working like little motors, changed the signals into vibrations and the shirt wearer’s brain did the rest.

The SoundShirt lets people who are deaf or hard of hearing enjoy music in a unique way.The very deep musical sound, or pitch, of instruments like drums and basses vibrates in the lower part of the shirt.Higher pitched sounds from instruments like the flute or violin vibrate higher, around the neck and arms.As the music plays, the sensations combine while the brain gets to work putting together all the different vibrations, allowing the wearer to “hear” the concert.

You might think this innovation(创新)would look like something out of a science fiction movie, but in fact, these shirts are wireless! And the decorative laser-lined design on the shirt looks like an image of sound waves.

Technology’s purpose is to help people and make life better.Think of all the amazing things designers, engineers, and producers of wearable tech will be able to do for humankind.

【小题1】What’s the passage mainly about?
A.Deep musical sounds from drums vibrate in the lower part of the SoundShirt.
B.The SoundShirt lets people who are deaf or hard of hearing enjoy music.
C.Wearable technology like the SoundShirt is the wave of the future.
D.CuteCircut tested the SoundShirt with a symphony orchestra.
【小题2】Which of the following statements is TRUE according to the passage?
A.The SoundShirt is made without any wires.
B.Deaf people are unable to sense sound vibrations
C.The shirt wearer’s brain change sound signals into vibrations
D.The sounds from the flute vibrate in the lower part of the SoundShirt
【小题3】What can be inferred about the SoundShirt described in the passage?
A.The SoundShirt works when the wearer is listening to a symphony orchestra.
B.CuteCircuit is giving away its SoundShirts to those deaf or hard of hearing.
C.The SoundShirt doesn’t work without the power of the human brain.
D.Before the SoundShirt, deaf people had no way of feeling sound.
【小题4】The author probably wrote this passage to ___________.
A.advise that companies should focus on applying wearable technology
B.advocate that technology can be used to create products that help others
C.prove that the design of wearable technology is a rewarding industry in future
D.exemplify that musical instruments can be used to change technology for the better

A big fair ended in Beijing. The China International Fair for Trade in Services (CIFTIS,中国国际服务贸易交易会) took place from Sept. 4 to 9, 2020. It is a major service trade event. Visitors saw how new technologies are used in different areas. One highlight (亮点) this year was service robots. Let’s look at three of them.

Garbage sorting (垃圾分类) is new to many people. Swiss company ABB has designed (设计) a robot to help us do it. It uses two arms to pick garbage that comes down a conveyor belt (传送带). It then throws the garbage into the right bin. A screen can show how many pieces of garbage it has sorted.

Unitree, a company in Hangzhou, Zhejiang, has made a robot dog. With an AI-powered smart camera, it can record everything it sees in real time. It can move up to 3.3 meters per second. It can also carry objects weighing up to 5 kg, about as heavy as 10 bottles of water. The robot dog can give people a hand in many ways. For example, it can move goods or search for people who go missing during disasters.

Can you hit back a ball that is served by a robot? Find out by playing against a ping-pong serving robot made by Chinese company Siasun. The robot can serve balls one by one automatically (自动地). It can change the speed, angle, and landing area of the balls as well. It can record your performance with a camera so you can review it later. It will help ping-pong players train and improve.

【小题1】What does the underlined word “it” in Paragraph 2 refer to?
A.Garbage sorting.B.The robot.C.The belt.D.The bin.
【小题2】Match the robots with the information and choose the right answer.
①The robot dog       a. It can pick garbage from a conveyor belt and throw it into the right bin.
②The ping-pong serving robot       b. It can run fast and carry heavy things.
③The garbage-sorting robot       c. It can record players’ performance and help to train players.
A.①—c②—b③—aB.①—b②—c③—a
C.①—b②—a③—cD.①—c②—a③—b
【小题3】What is the main idea of the passage?
A.How smart the service robots are.
B.How fast the new technologies are improved.
C.How hard the scientists work on the new technologies.
D.How wide the new technologies are used.

Microsoft is investing $10 billion in OpenAI, whose artificial intelligence tool ChatGPT has lit up the Internet since its introduction in November, accumulating more than 1 million users within days and touching off a fresh debate over the role of AI in the workplace.

Its ability to provide in-depth answers to user questions has even drawn the attention of distinguished technology companies. The intelligent robot understands what the user says or types and then responds in a way that makes sense. Its vast body of knowledge has been gathered from the Internet and archived(归档)books. This makes ChatGPT a useful tool for researching almost any topic.

“We have a lot of information on the Internet, but you normally have to Google it, then read it and then do something with it,” says Ricardo, chief science officer and co-founder of AI company Erudit. “Now you’ll have this resource that can process the whole Internet and all of the information it contains for you to answer your question.”

ChatGPT cannot think on its own. It depends on the information that it has been trained on. As a result, the AI tool works well for things that have accurate data available. However, when unsure, ChatGPT can get creative and flow out incorrect responses. OpenAI cautions users to check the information no matter how logical it sounds. Also, ChatGPT has only been trained with information till 2021. Hence, it cannot be relied on for anything that happened after that.

Experts believe ChatGPT has limitless potential to solve real-world problems. It can translate long texts into different languages, create content on almost any topic, and even summarize books.

However, ChatGPT has received mixed reactions from educators. Some believe it could serve as a valuable tool to help build literacy skills in the classroom. It could also be used to teach students difficult science or math concepts. But other educators think ChatGPT will encourage students to cheat. They fear this will prevent them from building critical thinking and problem-solving skills. As a result, many districts are starting to ban its use in schools.

【小题1】ChatGPT is special, because ________.
A.it can think on its ownB.it can answer users’ questions
C.it gets involved in meaningful talksD.it has a large number of users
【小题2】What makes ChatGPT helpful to research various topics?
A.Its capability of information processing.B.Its accurate information.
C.Its availability of instant responses.D.Its vast body of questions.
【小题3】What can be inferred about ChatGPT from Paragraph 4?
A.It shouldn’t be relied on for lack of creativity.
B.Users have to be cautious when using it.
C.We can consult it about anything in the past.
D.All the responses it gives are logical.
【小题4】What is the author’s attitude towards ChatGPT?
A.Favorable.B.Disapproving.C.Objective.D.Intolerant.

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