We use apps to order takeout, learn English and shop online. But have you ever imagined that we could deal with rubbish by using an app?
Dou Zheng, 15, a ninth-grader at The High School Affiliated to Beijing Normal University designed(设计) such an app. People can sell recyclable waste (可回收垃圾) like bottles to rubbish collectors. Just like ordering takeout, people can simply make an order on the app and enjoy door-to-door service. This March, Dou won the first prize at the 36th Beijing Youth Science Creation Competition with the app.
The idea for her app came from a real-life experience. On her way home, she always saw roads that were blocked ( 堵 住 ) because of rubbish collectors. “ There are lots of water bottles and cardboard on the roads. It’s a total mess ,” she said.
After doing research on surrounding communities ( 社 区 ), she found that the answer to the problem was to change the way people and rubbish collectors trade.
Last summer holiday, she ordered a lot of takeout, which gave her the idea to design the app. To believe that it would work, she did surveys on WeChat and in the streets. The results showed that eight out of 10 people supported the idea.
However, she didn’t know how to program apps. She read many books and watched videos to learn about programming on her own. “It’s hard. I have to know what a series of complicated codes (代码) mean and then write my own,” she said. Later, with the help of an app called AppMakr, she finished it! “This app made designing my app easier,” she said.
Her app may go online next year. “I’m working on contacting companies to promote (推广) it,” she said.
【小题1】What can Dou Zheng’s app do?| A．order takeout | B．learn English | C．shop online | D．deal with rubbish |
| A．a research | B．her own experience. | C．other apps | D．a competition |
| A．People can sell their rubbish online. |
| B．The roads won’t be blocked by the rubbish collectors. |
| C．Rubbish collectors can go to the seller’s home to buy some recyclable waste. |
| D．All above. |
| A．She just read many books. | B．She just watched videos. |
| C．With the help of an app called AppMakr. | D．With the help of her parents. |
| A．She learned a lot from this app. |
| B．Her app has already been online. |
| C．Without any help, Dou made this app all by herself. |
| D．Most of the people didn’t like her idea of this app. |
Inventions change how we live, work, play and think about what’s possible. Every year, TIME lists the 100 best inventions based on their creativity and impact on our lives. What did the magazine choose this year? Here are three of them.
| Easier to read. Reading can be a big challenge for tens of millions of people. They have poor eyesight or reading may difficulties. But OrCam Read can help them. It’s the first of its kind reading pen with a smart camera and an AI system. After scanning a page of text with the click of a button, it can read the text aloud to the user. You don’t need to connect it with the Internet, You can use it offline at home, work, school or even in stores when you need to read a price tag (标签). |
| Sweet idea. Honey is produced by bees. But today’s beekeeping business (养峰产业) is not good for these hard-working insects. Bee farmers may kill them after getting honey because it’s cheaper than feeding the bees through the winter. To save bees, US company MeliBio has found a way to make the world’s first bee-free honey. They used synthetic biology (合成生物学) to create honey directly from plants. This kind of honey tastes just like the real one, and it is healthy, too. |
| Keep you calm When you feel angry or unhappy, what do you do about it? Scientists say you can try to calm others. This can help you calm down. That’s why Purrble was invented. This fury, bear-like toy has 9 sensors (感应器) . It has a quick “heartbeat” and can reply to your touch. And it purrs like a cat. It sounds like it really enjoys your touch! Through petting Purrble, you’ll become more aware of your own feelings and learn how to feel calm yourself. |
| A．3. | B．Over 3. | C．100. | D．Over 100. |
| A．People must use it online. | B．It only helps read a price tag. |
| C．Reading becomes easier with it. | D．It’s useless for the blind to use it. |
| A．Many bees die of hunger during the cold winter. |
| B．Honey produced by bees tastes good but unhealthy. |
| C．Bees will perhaps be killed after they produce honey. |
| D．Bee farmers don’t want to spend money feeding them. |
| A．The sense of touch. | B．The sense of hearing. |
| C．Awareness of safety. | D．Awareness of being calm. |
| A．In a newspaper. | B．In a magazine. | C．In a storybook. | D．On a noticeboard. |
We can use new ways to fight the COVID-19. Let’s meet these high-tech helpers in China!
 | Drones In some countryside, the police use drones to find people in groups. When they are found by drones, the police will warn them through the loudspeaker on the drone. |
 | Smart Robots Time to eat! In some hospitals, smart robots help to send food to patients. The robots can also help to hand out medicine and show the way to people. |
 | 3D “Hospitals” A company in Shanghai has produced 15 mobile rooms within 24 hours by 3D printing technology and sent them to Hubei for patients to live in. Each room is about the size of a bedroom. |
 | AI System At the Mudanyuan subway station in Beijing, an AI system can check people in crowds to see if they have fevers. About three hundred people can be checked by it in one minute. |
| A．AI system. | B．Smart robots. | C．Drones. | D．3D“Hospitals” |
| A．Play with the patients. | B．Feed medicine. |
| C．Give directions. | D．Help patients check in. |
| A．In a science magazine. | B．In a novel. |
| C．In a travel magazine. | D．In a storybook. |
We can see beverage bottles（饮料瓶）almost everywhere. Can you imagine they can be sent into the sky? A science teacher and his students, from a primary school in Zhejiang Province, made a rocket with beverage bottles and launched（发射）successfully in May.
The teacher called Wang Yin said that the school’s learning theme of this year was about space and humans. And on May 15th, Tianwen-1 landed on Mars successfully. To celebrate it and let students experience the launching process, Wang decided to help his students make a water rocket.
The water rocket pushed by air and water wasn’t a new idea, but what Wang wanted to make was a two-stage（两段式）rocket. It wasn’t an easy job for the students. However, they showed great interest and did all the work with excitement. They continued with the project even after many failures. On May 17th, Wang and the students made it. Their rocket rose to a height of over one hundred meters. Later that day, Wang posted a video about the launch online. In just half a day, over 13 million people watched it. They all spoke highly of what he did. Wang said, “My students are crazy about it. It’s really meaningful.”
【小题1】Which of the following is NOT the main reason about making the rocket?| A．To meet the learning theme of the school. |
| B．To tell students the importance of teamwork. |
| C．To celebrate the successful landing of Tianwen-1. |
| D．To let students experience the launching process. |
| A．Excited. | B．Relaxed. | C．Nervous. | D．Surprised. |
| A．The students considered it as an easy job. |
| B．The rocket didn’t fly high in the sky. |
| C．The air and water played an important role. |
| D．The launch succeeded at the first try. |
| A．How to make a rocket with beverage bottles |
| B．How to develop students’ interest in science |
| C．A science teacher invented a water rocket at school |
| D．A rocket made by primary teacher and students flew to the sky |
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