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）

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Unit 2 单元话题阅读理解专项练习

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（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 earth’s surface through sensors (传感器) in smart phones.

The new app is called MyShake. It is the work of four researchers at 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

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 seismic (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, 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

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 developers say it will become more effective as more people use it.

1．What can we know about MyShake?

A．It can be applied to all kinds of phones.

B．It serves as a worldwide warning system.

C．It’s the name of a new smart phone.

D．It can prevent and stop the movement of the earth.

2．How can the phone app feel the earth’s shaking?

A．Through vibrations from smart phones.

B．Through information in smart phones.

C．Through sensors in smart phones.

D．Through accelerometers in smart phones.

3．Why are accelerometers used in MyShake?

A．To locate where the user is. B．To count steps or other exercise.

C．To measure seismic activity. D．To measure the shaking of building.

4．What’s the best title for the text?

A．A New Phone App Feels Earthquakes

B．A New Phone App Prevents Earthquakes

C．A New Phone App Keeps You Safe in the Earthquake

D．A 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. Which one are

you most excited about?

Purrble

It comes to the rescue for anxious kids. This toy has seven sensors that respond to touch. Purrble’s 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 families, 19 parents said Purrble helped their kids calm down.

Revolve Air

Andrea 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 standard folding wheelchair. Mocellin aims to get it out by mid-2022. He has nearly 12,000

customers on his waiting list.

OrCam Read

Reading 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 can 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 Robot

A girl, a pneumonia patient, in a clinic had barely 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.

5．What’s the advantage of Revolve Air?

A．It’s impressive in shape. B．It’s fit for use in a car.

C．It’s been widely used. D．It’s convenient to carry.

6．What should the users do first before OrCam Read starts to read?

A．Test their eyesight. B．Scan the text.

C．Use their cell phones. D．Speak their mother tongue.

7．Which can communicate with their users?

A．Purrble and OrCam Read. B．Revolve Air and Purrble.

C．Purrble and Robin the Robot. D．OrCam 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)? That’s the question being asked as artificial intelligence (AI) starts to enter the perfume(香

水) industry.

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 machine 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 brand’s vast library

of fragrance formulas (配方) — a much more efficient process 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 can’t actually sniff anything. But it is not designed to replace perfumers.

“It’s machine-learning and sometimes the results have been wrong,” says Claire Viola, vice president of

digital strategy fragrance at Symrise. “It’s still a project, the more we test, the more it continues to improve. It

constantly needs training.”

8．What is Carto according to the passage?

A．a bestselling unique fragrance. B．a Swiss-based fragrance developer.

C．an AI-powered tool. D．combinations of ingredients.

9．What’s the main idea of para. 3?

A．The process of making fragrance. B．Two ways of making fragrance.

C．The importance of a small robot. D．The popularity of a small robot.

10．What can we infer from Claire Viola’s opinion on Philyra?

A．It will replace perfumers in the near future.

B．It’s the most effective technology to produce perfume.

C．The results will be perfect when using it.

D．We should train and improve it, because it’s machine-learning.

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