题型:阅读选择 题类: 难易度:普通
广东省深圳市罗湖区翠园初级中学2024-2025学年九年级上学期期中考试英语试卷
During the National Day holiday, the sky above Shenzhen was lit up by impressive drone 〔无人机〕 light shows. This" cyber fireworks" lit up the night, painting a lively picture of Shenzhen as a" City of Miracles, City of Innovation, City of Future". A total of 10, 197DAMODA drones took to the sky at the same time, setting two Guinness World Records. So how does the drone light show work?
Before a drone light show begins, drones are usually put on the ground one by one and it would take a lot of time to prepare a show with more than ten thousand drones. To shorten the time, the DAMODA drone company thought of a solution. The company put groups of drones into big boxes with specific OR codes on it. By putting the boxes into correct places, thousands of drones can be ready in a short time and they can go back to their"homes" by scanning the OR codes.
In drone shows, each drone is programmed by a computer to follow its own flight direction, carefully avoiding the other drones. They communicate with neighbouring drones and use sensors(传感器) to keep a certain distance. The position and LED colours change throughout the performance to show different objects in the night sky.
Drone light shows are thought to be more environmentally friendly — and certainly cause less noise and light pollution — than fireworks shows, so lots of big events are turning to them instead of fireworks. Drones can also be reused again and again so they will probably be more popular in the future.
The traditional Chinese lunar calendar (阴历) divides the year into 24 solar terms (节气).Major Snow (大雪) is the 21st solar term of the year. Here are three things you should know about Major Snow.
Snowy winter | The snow in North China may last a whole day,covering the ground and blocking the road. In the south,snow falls and the world turns white. There is a saying about the snow,"A timely snow promises a good harvest". |
Admiring plum blossoms (梅花) | Plum blossoms usually bloom (开花) in midtolate December in some southern cities of China,and sometimes bloom even earlier. The plum blossom,which came from China,is honored in Chinese culture for its resilience during cold winters. With the pine (松树) and bamboo,it is regarded as one of the Three Friends of Winter. |
Eating porridge | Hot porridge can help warm you and make your body healthy in cold weather. In China,it's traditional to eat red bean porridge on the first day of Major Snow and eighttreasure porridge on the eighth day of the last month of the lunar year. |
If you are looking for apps to learn English for studying in a foreign country, you might be uncertain. The following top four favourite apps may help you decide which is right for you. | ||
Hello English— Best app for middle learners If you already understand the basics but want to improve, this app is for you. Hello English starts with a language test, and then serves up English lessons based on your test results. It supports learners with 23 native languages and lets you play games, watch videos and listen to audio* books too. Free versions for iOS Android and Windows. | Duolingo— Most fun app This special app turns studying into a game. Use virtual coins to unlock new levels and spend them on fun upgrades. A cartoon bird encourages you as you learn. You can also get help from other students inside the app using the Duoling o message boards. Free and paid versions for Android iOS and Windows. | |
FluentU— Best media- based app This app gets English- language videos from the real world— including news, music videos and commercials. You can input any word and see more information about it. Free trial and paid monthly subscriptions for Android and iOS. | Rosetta Stone— Most multi- use app This award- winning English app includes vocabulary and grammar as well as pronunciation lessons so you can improve your English accent. You can also download audio lessons to learn offline. Free trial and paid versions for Android,iOS and Windows. |
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