题型:阅读选择 题类: 难易度:困难
黑龙江省哈尔滨市第四十九中学校2024-2025学年八年级上学期开学测试英语试卷
People pay close attention to 5G these years. So, what is 5G? The "G" stands for(代表) the generation of your mobile network.5G is the 5th generation mobile networks and it's a hundred times faster than 4G.
The first 5G video call was made on a Huawei Mate X smartph one on March 30, 2019. Shanghai has also become the first city in China to start testing 5G networks. Monaco became the first country in Europe to use a next-generation 5G mobile phone network based on technology from Chinese company Huawei.
It sounds obvious, but it's important to understand just how much faster 5G is compared to current 4G speeds. 5G will not only be many, many times faster than your existing connection, and it will be greatly faster than the broadband connection you have at home.
Now, 4G takes about 100 to 200 milliseconds to send and receive data. But 5G will get it down to 1 millisecond or less. This big change will not only make our mobile Internet faster. It can be used in many other ways as well.
For example, 5G will help make self-driving cars safer. Today's self- driving test cars have one problem—lag. When the car "sees" an obstacle(障碍), it sends this information to a data centre and receives instructions. However, it takes time to send and receive this information. With this kind of lag, the cars might crash because they don't receive instructions in time. With 5G, this lag will be greatly lowered, making the cars safer, according to CNN. 5G could also be used to power the Internet of Things (IOT). This refers to a large online network that connects all things and people. Fast Internet speeds will be the key to developing this technology. For example, with IOT under 5G, your fridge could automatically(自动地) place an order online for eggs when it finds that there are no eggs left inside.
All in all, 5G will shape every type of technology that it touches. And you won't have to wait too long for that to happen. Though we've seen a lot of positive progress just in the last year, we still have a long way to go before 5G is anywhere near as common as 4G is right now.
GONE WITH THE WIND Author: Margaret Mitchell ¥25 (in bookstores) ¥18 (online) Gone With the Windis a best-seller, which tells a story that happened in the American Civil War (美国内战). Scarlett O'Hara is a woman in the story who is full of energy. She is strong and saves her family but is very selfish at the same time. | |
PETER PAN Author: J. M Barrie ¥15 (in bookstores) ¥12 (online) It is a children's story full of imagination and adventures (冒险), which is about Wendy. John, and Michael Darling's adventures in Never-Never Land with Peter Pan. the boy who would not grow up. The children are happy and lovely. (with 2 tapes) | |
UNCLE TOM'S CABIN Author: Harriet Beecher Stowe ¥20 (in bookstores) The most famous novel in American history, Uncle Tom's Cabintalked about the fights between free states and slave (奴隶) states during the American Civil War and is as powerful today as when it first came out 172 years ago. | |
THE SECRET GARDEN Author: Frances Hodgson Burnett ¥35 (in bookstores) ¥30 (online) Mary Lennox, a sickly orphan (孤儿), finds herself in her uncle's dark house. Why are so many rooms locked? Why is one of the gardens locked? And what is that crying she hears at night? Through the power of hope, friendship, and the magic of nature, the brave girl brings the house and a long-lost garden back to life. |
Panjin No. 1 Middle School Dear boys and girls, Hello and welcome back! Next week we're starting school again. Please bring(带来)these things: ●One big schoolbag ●Four school books(English, math, science and reading) ●One notebook(笔记本) ●Two pencils ●One eraser ●One big box of coloured pencils(for art lessons) ●One ruler ●One lunch box Please look after all the things. Please don't lose anything. See you next week! Head teacher—Mr. Lee Note:Please don't bring mobile phones to school. |
□Basic English Writing □Treasure Island □Secrets of English Words □The Adventures of Robinson Crusoe □A Guide to English Listening □Alice in Wonderland □20 Topics for English Speaking |
注意:1. 必须从以上书单中选择两本书刊,并阐述理由;
2. 文中不得出现与你身份相关的信息;
3. 词数:80~100。
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