1 . ①Scientists have found that plants can make sounds.

②A scientist Lily Hadany and her team recorded (录制) tomato plants at different times. It showed that the plants made ultrasonic (超声波) sounds. People could only hear them with the help of a computer. They were noises like clicking sounds.

③As the scientists studied the sounds, they began to find some interesting facts. Plants made different sounds at different times. They seldom clicked (发出咔嗒声) when they had enough water, but when they needed water, they clicked more and more. Scientists also found that plants made sounds when they got hurt. When scientists cut off a leaf from the plants, the plants also clicked more. But the clicking wasn’t the same as when the plants needed water.

④Some scientists designed a computer AI system to tell the different kinds of clicking sounds. It was able to find the difference between plants that needed water and plants with cuts. It means that one day we may be able to use these sounds to find out when it is in difficult time, and what problem it is having. That could be very helpful to farmers.

⑤The team’s finding changes our ideas about plants. As Dr. Hadany says, “Even in a quiet field, there are sounds made by plants, and those sounds carry information and may help us a lot.”

1. Which of the following may you need if you want to hear the sounds of plants?

A．

B．

C．

D．

2. How does the writer show the interesting facts in Paragraph 3?

A．By giving examples.	B．By telling stories.
C．By asking questions.	D．By using numbers.

3. What can people do with the help of the team’s finding?

A．Stop people from cutting down trees.

B．Know how to tell different sounds faster.

C．Help farmers to know more about their plants.

D．Hear more beautiful sounds from different plants.

4. What is the structure (结构) of the passage？

A．① / ②③④ / ⑤	B．①②③④ / ⑤
C．① / ② / ③ / ④⑤	D．① / ②③④⑤

3 . Do you find it difficult to put down your mobile phone?
If yes, you’re not alone. These days, many people are facing the stress in the use of mobile phones. They reach for their mobile phones when they wake up in the morning, and keep checking their social media apps to get the latest updates (更新).
A report from Google shows that 70 percent of people don’t want to spend much time on their phones. This is why Google introduced an app called Dashboard for the new Android operating system(安卓操作系统). This new app includes functions (功能) that help users manage the time. For example, users can see how many times they’ve unlocked their phone, how many times they’ve checked their social media apps, and how much time they spend on each app every day.
Once the users see this information, they’ll be able to make some changes. With the App Timer (计时) function, users can set a time limit for how long they can use each app for every day. After they’ve hit the limit, they won’t be able to use the app until the next day. And with another function, the app gets incoming calls silent when the user puts the phone face down.
If people truly want to make full use of their free time instead of losing hours on their phones, these new functions are just one way of doing that.
After all, who needs to use an app to stop you from using other apps? The easiest answer would be just to use your willpower.
1. Where does the users’ stress come from?

A．Too many updates of the apps.	B．Too many functions of the apps.
C．Too much information they receive.	D．Too much time they spend on the phone.

2. Which of the followings is NOT included in Dashboard’s functions?

A．It stops the users from using willpower.

B．It checks how much time the users spend on apps.

C．It lists how many times the users have unlocked the phone.

D．It shows how many times the users have checked social media apps.

3. What does the underlined word “limit” in Paragraph 4 mean?

A．目的

B．标准

C．许可

D．限制

4. Which picture shows the phone gets incoming calls silent?

A．

B．

C．

D．

5. What does the writer think of Dashboard?

A．Its design is perfect.	B．It may be helpful to some people.
C．It needs more functions.	D．It has too many functions.

4 . On April 2, we said goodbye to Tiangong I, China's first space lab. According to the China Manned Space Agency（中国载人航天）, Tiangong I re-entered the Earth's atmosphere（大气层）and some of its debris（碎片）fell into the South Pacific Ocean.

There are many spacecraft（宇宙飞船）that are still in orbit（轨道）above the Earth. After finishing their trips, they will all re-enter the Earth's atmosphere like Tiangong I.

There are two types of re-entries: controlled re-entry and uncontrolled re-entry.

Some satellites and manned spacecraft come back to the Earth in a controlled re-entry. Experts calculate（计算）the path of the falling spacecraft and its speed. They can guide the spacecraft to fall in a chosen area.

Some spacecraft may have problems while in space after a certain amount of time. These spacecraft come back in an uncontrolled re-entry. It is hard to tell when and where these spacecraft will fall until the last few hours. The US space station Skylab came back partially uncontrolled in 1979. Parts of the station fell in western Australia, but no one was hurt.

During re-entry, most of the spacecraft will burn up while passing through the Earth's atmosphere. Only a small amount of the debris will reach the ground. The debris typically ends up falling into the ocean, China Daily reported.

1. The debris from Tiangong I       .

A．fell into the South Pacific Ocean	B．fell in western Australia
C．fell in the central part of the US	D．fell into the North Pacific Ocean

2. When the spacecraft finishes its trip, it will       .

A．burn up and disappear	B．speed up and fly back to the Earth
C．enter another orbit and stay in space	D．re-enter the Earth's atmosphere

3. From the passage, we know there are        types of re-entries.

A．one

B．two

C．three

D．four

4. Which of the following is TRUE about the US space station Skylab?

A．It came back in a controlled re-entry.

B．Some people were hurt by its debris.

C．Parts of it fell in western Australia.

D．It was directed to fall into the ocean.

5. This story most probably comes from       .

A．a story book

B．a movie review

C．a science magazine

D．a government report

5 . AI(人工智能) makes our lives easier and better. Let’s see the amazing AI.

Cool driverless bus 　　Apolong is a new kind of driverless(无人的) bus. 　　It can hold fourteen people and doesn’t need a driver. The bus follows the traffic rules. It will stop every time when it sees the red “stop” sign.	Your close friend 　　Hi, everyone! I’m Xiaoice. I look like a 17-year-old girl. I can talk with you. And I’m good at singing, writing poems and telling stories. I want to be your friend!
Popular AI artist 　　Look at this beautiful picture. It sold for about 3,000,000 yuan! But it is not a work from a famous artist(画家), such as Vincent van Gogh. It’s from an AI artist. 　　The AI artist studied over 15,000 pictures to learn how to draw. Now it is one of the most popular artists in the world.	World’s first AI anchor 　　Hey, look! Qiu Hao is a Chinese famous anchor(主播). It is the world’s first AI anchor. 　　It looks and speaks just like a person. It can both speak Chinese and English. It can work 24 hours without any mistakes(错误).

1. How many people can Apolong hold?

A．34.

B．30.

C．24.

D．14.

2. Xiaoice can NOT ________.

A．fly kites

B．talk with you

C．write poems

D．sing or tell stories

3. What can we know about the AI artist?

A．Vincent van Gogh invented it.	B．It sold for about 3,000,000 yuan.
C．It studied over 25,000 pictures.	D．It’s one of the most popular artists in the world.

4. What languages can Qiu Hao speak?

A．English and Japanese.	B．Chinese and Japanese.
C．Chinese and English.	D．We don’t know.

5. We can probably see the passage in ________.

A．a medicine book

B．a poem book

C．a story book

D．a newspaper

6 .
A science fiction flying car looks like a normal car, but it is an aircraft (飞行器) that anybody can fly directly from any place to another without using roads or runways. Science fiction writers have written about flying cars for a long time. But now flying cars will soon fly out of the world of science fiction into our real world. And the dream of the science fiction writers will soon come true.
The first-known sky car is the FSC-1. The FSC-1 looks like an expensive sports car. You can drive the FSC-1 on the road like a normal car. If you touch a button, its wings and propeller (螺旋桨) fold out and then it can take off, fly and land as an airplane. The owners of the FSC-1 can choose if they want to drive or fly.
Another flying car or sky car is the Moller Skycar M400. Although you can’t drive it on the roads, it is small and easy to fly and can take off and land like a helicopter (直升飞机). Urban Aeronautics’ X-Hawk is another type of sky car. It is expected to be available for about $3 million.
Just like any new technology, flying cars have taken a long time to be developed. But some experts think the technology is far from what people imagine when they are sitting in traffic. It still needs to be improved.
1. ______ kinds of flying cars are mentioned in the passage.

A．Two

B．Three

C．Four

D．Five

2. The writer thinks that flying cars will be no longer a dream because ______.

A．science fiction writers’ ideas are stupid

B．they are too expensive to make

C．they will soon be available

D．they are only in science fiction

3. The FSC-1 can ______.

A．change itself into a robot

B．move on water like a ship

C．be flown only like an airplane

D．be driven like a car and flown like an airplane

4. The Moller Skycar is different from the FSC-1 because ______.

A．it can’t fly

B．it can’t be driven like a car

C．it is difficult to land

D．it is much more expensive

5. Some experts think the technology of flying cars is ______.

A．normal	B．traditional
C．not good enough	D．strange

7 . Self-driving cars are believed to be the future of driving. Companies including Toyota, Uber and Google are all competing to be the first to bring them to market.

However, car makers need to solve one problem first: How driverless cars communicate with passers-by, bikers and other drivers. Most drivers today use gestures to show their purposes. They wave a car into a lane(车道), or nod at passers-by and cyclists, to let them cross the street. But self-driving cars don’t have this ability. What can they do? US carmaker Ford and its partner Virginia Tech think they have the answer, reported Business Insider. The team is testing a method that uses light signals to show what self-driving cars are doing. For example, if a driverless car is yielding, it could flash two white lights side to side. A solid white light tells there are no humans in the car. A slow blinking light shows the car is coming to a stop. A rapidly flashing light tells passers-by that the car is about to speed up. To test the method on real roads, the team designed a special suit that looks exactly like a car seat. When a driver wears it, it appears to people that the car is really driverless. The team then successfully got more than 1,500 hours of data after about 2,900 kilometres of “self-driving” through busy cities. The data recorded how people interacted with a driverless vehicle. Ford says they plan to share the data with 11 other companies, reported dogonews. com. The company wants to work with other carmakers to design a signaling system that would be understood by all.

1. What are considered to be the future of driving?

A．Flying cars.

B．Driverless cars.

C．Energy-saving cars.

D．Electric cars.

2. What’s the problem of driverless cars?

A．Communicating with people.	B．Not having enough seatbelts.
C．Driving into a lane.	D．Crossing a street.

3. What does the underlined word “yielding” refer to?

A．加速

B．减速

C．让路

D．超车

4. According to Ford and Virginia Tech, how might the problem be solved?

A．Flashing light signals.	B．Sending information to smartphones.
C．Designing special suits for drivers.	D．Only driving in small cities.

5. Which of the following shows the car will speed up?

A．A solid white light.	B．A slow blinking light.
C．A fast flashing light.	D．No lights.

8 . Thumbs Down to Texting (屈指发短信)

Do you have a mobile phone? Do you send text messages to your friends and family?

Text messaging or “texting” is becoming very popular. But, scientists have discovered that texting can give us problems with our hands. Be careful! Too much texting can cause swelling in our thumbs. Our thumbs were not made for pushing small buttons, over and over . Scientists call this problem RSI. We spoke to a doctor called Harriet Wilson, who treats many sick people with RSI. She says we need to see how much time we are spending in typing text messages. If we are spending more than 10-15 minutes at once, we could have problems in the future.

As mobile phones develop, they are getting smaller with buttons closer together. Texting with a smaller phone is worse than using a larger phone with bigger buttons. Using a computer keyboard and playing video games can cause the same problem. So more and more people could find themselves with RSI. Among them, most are university students and teenagers, as they do not know the risks of spending so much time using computer, video games and mobile phones. If we don't do something about this, too many young people could grow up in terrible pain.

根据短文内容，完成下列小题。
1. What is becoming very popular now?
____________________________________________________________
2. Does the word “once” mean “one time” in the second passage?
____________________________________________________________
3. What kind of people are easier to have the problem of RSI?
____________________________________________________________
4. What can also cause RSI except texting?
____________________________________________________________
5. Which is easier to cause the problem of RSI, using smaller mobile phones or larger ones?
____________________________________________________________

9 . Choose the best answer and complete the passage (选择最恰当的选项完成短文)

What’s in your face?

Your face might be the most unique (特别的) part of your physical appearance. ________ has something about their face that’s a little different. And that difference makes facial recognition (面部识别) possible.

This technology can be seen in many films. In the science-fiction classic: A Space Odyssey, a powerful AI-controlled computer called HAL 9000 is able to “________” the emotions of human astronauts by scanning (扫描) their faces. And in the 1987 action classic: Robocop, a half-robot police officer identifies (识别) a criminal by scanning his ________ and finding it in a computer.

Today, facial recognition tech has become reality. It is mainly used as a ________ method to identify criminals. In 2018, facial recognition technology was used to identify and catch criminals who were attending concerts by Hong Kong singer Jacky Cheung. And if you have a recent model of Apple’s iPhone, you probably already known that you can unlock the phone with your face. But those are ________ a few of the things we can use facial recognition for. The possibilities, it seems, are endless.

Take Grab for example. Grab is a ride-hailing (叫车服务) company in southeast Asia that uses facial recognition technology to protect passengers from danger. The technology works by scanning the faces of both the driver and the passenger, allowing passengers to make sure that they have been matched up with the ________ driver.

Facial recognition is more common than you might realize.

1.

A．Someone

B．Anyone

C．Everyone

D．No one

2.

A．read

B．draw

C．show

D．speak

3.

A．information

B．figure

C．photo

D．apartment

4.

A．amusement

B．science

C．politics

D．safety

5.

A．still

B．just

C．nearly

D．hardly

6.

A．careful

B．correct

C．close

D．confident

10 . There is no doubt that technology has had a big influence on our lives. People from all around the world can now talk to each other almost at once on mobile phones and the Internet. People can easily solve their problems with the help of computers and the World Wide Web. With the technology, it seems that the world is more connected now than ever before. Even so, there have been worries about technology making people feel lonely and disconnected from others around them.

So does this mean that technology makes us lonely?

In my opinion,   it is hard to say “Yes” or “No”.

It’s true that humans need communication with each other. If we depend on technology too much to communicate, this can badly impact our mental (心理的) health. For me, technology is a tool. And just like any other kind of tool—like scissors, a pencil or a ruler. For example, it depends on how we use it: in a right way or in a right place. Take social media (社交媒体) as an example. If you only use it to compare yourself with others, you might feel sad and lonely. But if you use it as a tool to connect with friends and family or to start a new community to talk about your hobbies and interests, the loneliness will turn into love and friendship.

When you feel lonely after staring at your computer screen all day, maybe you can use that technology to reach out to a reliable (可靠的) friend and invite him or her out for lunch or a coffee.

1. According to the passage, if people depend on technology too much, they may ________.

A．sleep less

B．live longer

C．feel lonely

D．get more jobs

2. What’s the meaning of the underlined word “impact” in Paragraph 4?

A．帮助

B．促进

C．影响

D．进入

3. According to the writer, technology is ________.

A．a tool	B．an influence
C．a pair of scissors	D．a way of communication

4. When we use technology to ________ others, we can find love and friendship.

A．argue with

B．compete with

C．connect with

D．compare with

5. What’s the main idea of the passage?

A．Social media is important to us.

B．Technology can be both good and bad.

C．People need to communicate with each other.

D．Computers and the Internet help us with our work.