Our smart phones are amazing, but our connections can be so slow. The future in science-fiction movies seems so close, yet so far away. 5G technology makes that future look easily achievable. What is 5G? It’s the latest generation of cellular (蜂窩狀的) network technology. It is faster and more stable (穩(wěn)定的) than 4G. This powerful wireless network will change the way we live.
Transportation
With the introduction of 5G and smart technology, traffic lights, buses and even cars begin to communicate with each other. We will be able to check traffic flow so that traffic jams (擁堵) may soon become a thing of the past. Moreover, it’s reported there is a good possibility of seeing driverless cars on our roads. With the help of 5G, these cars will be able to react to sudden changes in their environment at once, such as a dog running across the road.
Medical treatment
With 5G networking, all the people can have the chance to use top medical resources. Before treatment, 5G will support video calls with doctors and provide advice for those who can’t visit a hospital at once. After being treated, wearable tech will send information to doctors in no time, allowing hospitals to monitor the patients from their homes. It also allows surgeons to perform operations remotely, using robots. In March, 2019, China completed its first 5G-based human brain surgery between a doctor and a patient located more than 4,000 kilometers away. Five months later, robots guided by Beijing doctors completed a test operation in three different locations at the same time!
It seems that 5G will make our life more exciting and convenient wherever we use it.
Title: 5G Makes a Great Difference
Explanation of 5G | It is an 1. generation wireless system, which is faster and more stable than 4G. | |
Some ways that 5G will change the world | Transportation | Being able to check traffic flow, will announce the 2. of traffic jams. Higher speed and better stability will make it 3. to operate driverless cars smoothly and safely. |
Medical treatment | With 5G networking, the doctors and nurses can come to the patients. Operations can be done by robots guided by doctors 4.else. | |
Conclusion | 5G technology makes it easier for people to 5. a more exciting and convenient future. |
年級(jí) | 高中課程 | 年級(jí) | 初中課程 |
高一 | 高一免費(fèi)課程推薦! | 初一 | 初一免費(fèi)課程推薦! |
高二 | 高二免費(fèi)課程推薦! | 初二 | 初二免費(fèi)課程推薦! |
高三 | 高三免費(fèi)課程推薦! | 初三 | 初三免費(fèi)課程推薦! |
科目:初中英語 來源:2020年上海市金山區(qū)中考二模英語試卷 題型:改寫句子
People have changed their ways of life to protect the environment. (改為被動(dòng)語態(tài))
People's ways of life ________ changed to protect the environment.
查看答案和解析>>
科目:初中英語 來源:2020年6月江蘇省無錫市江陰市華士片中考模擬英語試卷 題型:根據(jù)中/英文提示填空
Don’t worry a lot. It is a ____________ (常見的) mistake among learners of English.
查看答案和解析>>
科目:初中英語 來源:2020年6月江蘇省無錫市江陰市華士片中考模擬英語試卷 題型:單選題
If success is a gate, the road this gate must be made up of difficulties.
A. towards B. against C. opposite D. beyond
查看答案和解析>>
科目:初中英語 來源:2020年江蘇省無錫市梁溪區(qū)中考一模英語試卷 題型:完成句子
比起艱難地挑選禮物,不少年輕人過節(jié)時(shí)更喜歡動(dòng)手制作。
Many young people would rather _______ pick ones with difficulty on festivals.
查看答案和解析>>
科目:初中英語 來源:2020年江蘇省無錫市梁溪區(qū)中考一模英語試卷 題型:閱讀單選
A jigsaw is a power-driven saw (鋸) used to cut sharp curves (急彎曲線) in pieces of wood.
A jigsaw is also a puzzle. It is made up of a large number of small, interlocking pieces. Each piece has a small part of a picture on it. A completed puzzle produces a picture or design.
Jigsaw puzzles were first created by producing a picture on a flat, rectangular (矩形) piece of wood, then cutting that picture into small pieces with a jigsaw – that’s where the name comes from!
Pictures found on jigsaw puzzles mainly include scenes from nature, city life and similar designs. Castles, mountains and water scenes are traditional subjects. However, any kind of picture can be used to make a jigsaw puzzle. Cartoon-styles are popular. There are companies that create puzzles from personal photographs. Completed puzzles can also be glued onto a piece of wood to make a wall hanging.
The first jigsaw puzzles were designed as geography teaching tools by John Spilsbury in 1767. His “jigsaw” was a map puzzle. It was a hand-painted map of England on a piece of wood. It was a successful teaching method. He went on to make over thirty other map puzzles. The pieces were not interlocking.
With the invention of power tools more than a century later, jigsaw puzzles with fully interlocking pieces came into being. The jigsaw machine could cut sharp curves. Then the name jigsaw puzzles came into being. Jigsaw puzzles became very popular in the United States in the early 1930s, when people had difficulty in finding jobs and making money.
Today puzzles of all sizes are a standard item in toy shops and supermarkets. However, they usually come in 300-piece, 500-piece, 750-piece, and 1,000-piece sizes. The largest one even has 24,000 pieces.
Some jigsaws are quite tricky. Try doing one with all pieces without pictures on it. A few puzzles are made double-sided, so they can be solved from either side. This increases the difficulty, because the puzzle solver cannot be certain which way up each piece goes. Some jigsaws do not have straight edges (邊緣). The edge pieces could be any interlocking piece. Solving these jigsaws requires more effort than doing those straight-edged ones. Others designedly have a piece or two missing. Jigsaws are no longer educational toys but are used for entertainment or a hobby.
1.What can we learn about jigsaw puzzles?
A.Cartoon-style pictures are traditional subjects of jigsaw puzzles.
B.People can choose any photo they like to use in a jigsaw puzzle.
C.The smallest jigsaw puzzle in the world has three hundred pieces.
D.There are many small, interlocking pieces in all the jigsaw puzzles.
2.Which of the following can most probably be made by John Spilsbury?
A. B. C. D.
3.Which of the following jigsaws is the most difficult to solve?
A.A double-sided jigsaw with straight edges.
B.A one-sided jigsaw with straight edges.
C.A double-sided jigsaw with curved edges.
D.A one-sided jigsaw with curved edges.
4.What can we infer (推斷) from the passage?
A.Puzzles are cheap entertainment that can be replayed or passed on to others.
B.By 1767, students began to learn geography by putting the puzzles back together.
C.Spilsbury continued to build more puzzles with different area maps and sell them.
D.Early wooden puzzles had pictures printed to the front and lines for cutting on the back.
查看答案和解析>>
科目:初中英語 來源:2020年江蘇省無錫市梁溪區(qū)中考一模英語試卷 題型:單選題
— Are you going to take part in the speech competition?
— That’s for sure. It’s _______ a chance to miss.
A.small enough B.good enough C.too small D.too good
查看答案和解析>>
科目:初中英語 來源:2020年6月江蘇省鹽城市建湖縣中考二模英語試卷 題型:完型填空
Long, long ago, there lived a couple who already had seven sons. They wanted a daughter, and soon they had one. One day, the father needed _______ for the baby girl, so he sent the seven brothers to a well with a water jug. Once there, though, the boys began to _______ and the jug fell into the well.
The boys were _______ afraid to go home. They looked into the well sadly and thought of their father. “_______ are those naughty boys? Hours have passed. They must have _________ the water. I wish they were all turned into birds!” shouted the father _______. And when he looked up he saw seven birds flying away. The father was _______, but it was too late. He could not take back his words.
In time, the girl grew up and _______ she had brothers. She made up her mind to find them.
For years, she searched and did not stop. Finally, she found their _______ . To enter, she needed a special key made from a wolf-bone, which she didn’t have. ________ a hunter’s help, she finally killed one and got the key. She ________ the front door and went inside. On a table, there were seven plates and seven cups. She was not that hungry so she ate and drank a little from ________ of them.
She accidentally dropped a ring that her parents had given her into the ________ cup. Later, the birds returned for their ________. The girl hid behind the door and watched. ________ the seventh bird drank from his cup, something hit his mouth. The bird recognized it at once. It was his parents' ring. At that moment, their sister ran to them, and in a sudden the birds were humans again.
1.A.water B.food C.clothes D.fruit
2.A.dance B.sing C.work D.fight
3.A.too B.so C.much D.very
4.A.How B.Where C.What D.Who
5.A.worried about B.thought about C.forgotten about D.cared about
6.A.quickly B.angrily C.clearly D.politely
7.A.surprised B.satisfied C.stressed D.scared
8.A.agreed B.discovered C.insisted D.regretted
9.A.garden B.home C.cup D.table
10.A.By B.To C.For D.With
11.A.knocked B.locked C.opened D.broke
12.A.either B.both C.each D.none
13.A.first B.second C.third D.last
14.A.breakfast B.lunch C.supper D.meal
15.A.When B.Since C.Because D.Unless
查看答案和解析>>
百度致信 - 練習(xí)冊(cè)列表 - 試題列表
湖北省互聯(lián)網(wǎng)違法和不良信息舉報(bào)平臺(tái) | 網(wǎng)上有害信息舉報(bào)專區(qū) | 電信詐騙舉報(bào)專區(qū) | 涉歷史虛無主義有害信息舉報(bào)專區(qū) | 涉企侵權(quán)舉報(bào)專區(qū)
違法和不良信息舉報(bào)電話:027-86699610 舉報(bào)郵箱:58377363@163.com