Do you know 5G? It is the fifth generation(代)of mobile network technology. These new networks are coming.
China just issued commercial licenses(发放商用牌照)for 5G on June 6, 2019. This means that China's telecom companies will be able to offer 5G networks for mobile phone users.
Each mobile network generation is faster and more powerful than the one before it. 1G let us talk to each other. 2G let us send messages. 3G gave us data(数据)and the Internet. And 4G made all of these things faster. What's special about 5G?
5G has a very short delay between sending and receiving information. Now, 4G takes about 100 to 200 milliseconds(毫秒)to send and receive data. But 5G will get it down to 1 millisecond or less-this is almost real-time.
'This big change will not only make our mobile Internet faster,but also deeply change our lives. Read on to find out how.
5G + entertainment(娱乐)
5G networks are about 100 times faster than 4G. This means you can download a movie in seconds using 5G.
Also, virtual reality(VR)games will become more popular with 5G. The short delay of 5G will make the games feel even more real.
5G + transport
5C will also bring us safer self-driving cars. These cars can send signals(信号)to each other. They also talk to traffic lights and road sensors(传感器). 5G will allow cars to react(反应)even faster than human drivers.
5G + smart homes
5G also makes the Internet of things possible. Internet of things is a large network that connects everything to the Internet. Smart homes are part of it.
For example, your toaster can automatically(自动地)start making breakfast after your alarm rings. And if its sensor feels the air becoming dry, a smart sprinkler(洒水器)could water your plants by itself.
1. What's the writer's purpose in writing the third paragraph?A.To explain 5G is the best of all. |
B.To share his knowledge about 5G. |
C.To encourage people to use the new network technology. |
D.To show the development of mobile network technology. |
A.卡顿 | B.延时 | C.暂停 | D.掉线 |
A.Health care | B.Entertainment. | C.Transport. | D.Smart homes. |
A.Download a movie in minutes. |
B.Put everything onto the Internet. |
C.Make self-driving cars safer. |
D.Make food more easily and faster. |
A.5G will change our lives in many ways. |
B.Mobile networks are changing for better. |
C.5G will make the Internet of things possible. |
D.5G networks for mobile phone users are coming. |
相似题推荐
【推荐1】Scientists are not alone in the fight against the novel coronavirus (新型冠状病毒), as new technologies and innovative (创新的) products are giving them a hand. Here are some examples.
Big date(大数据)
Our smartphones send data to telecom companies (电信公司) around the clock, telling these companies where we have been and where we are going. Chinese telecom companies provide governments with this data. They use the data to track (追踪) traffic flows among different provinces and cities. By tracking how many people are coming and going out of Wuhan, the center of the outbreak, telecom companies can send warnings to areas that are being visited by large numbers of people from Wuhan.
Drones (无人机)
Drones have played a major role in disinfection (消毒) and preventing cross-infection (交叉感染) in crowded places like hospitals, railway stations and airports.
Police officers use drones to give warnings. For example, if people gather in large groups or do not wear masks, drones with cameras can record and send images of these people in real time to control rooms. The drones will then warn these people.
Robots
Robots are good helpers on the frontlines. They are used at hospitals to offer medical advice, deliver drugs or meals, act like guides, perform disinfection, measure patients' body temperatures and do other repetitive work. In this way, robots can not only help greatly reduce the burden for medical workers, but also reduce the risk of cross-infection. They have also been used in public places like train stations and airports to check temperatures.
1. The technologies and innovative products are mentioned in the passage EXCEPT ________.A.big data | B.robots | C.drones | D.telephone |
a. Smartphones send data to telecom companies.
b. Telecom companies can send warnings.
c. Telecom companies provide data for governments.
d. Governments track traffic flows with data.
A.c-a-d-b | B.a-c-d-b | C.d-c-a-b | D.d-a-c-b |
A.offices, railway stations and airports | B.hospitals, waiting rooms and airports |
C.hospitals, railway stations and airports | D.hospitals, railway stations and dining halls |
A.a new kind of smartphones | B.the technologies and innovative products |
C.disinfection and preventing cross-infection | D.scientists and medical workers |
【推荐2】
Sleep Cycle helps your body get an ideal rest by monitoring(监测)your sleeping patterns and waking you up when it senses that it’s the best time. The app is free for the basic functions(功能)but you should pay for some other services. | |
Coach. me is a kind of app that allows users to connect and encourage each other to keep new habits. This app enables anyone to have many responsible partners while forming new habits. The app is found both on Android and Apple Store for free. | |
Khan Academy is an app for all parents wishing to give their children good education from a young age. The app offers different topics ranging from science to maths. The app is free to download on your iPhone, iPad or Android smartphone. | |
Daily Yoga is an app to help you fit in a few minutes for simple yoga exercises. You may spend ten minutes or so and do a few yoga poses as instructed(指令)by the app. It is free on the Apple Store. |
A.Sleep Cycle | B.Coach. me | C.Khan Academy | D.Daily Yoga |
A.get an ideal rest | B.do a few yoga poses |
C.buy things online | D.form new habits |
A.the ways of getting some useful apps | B.the life some useful apps bring people |
C.the introduction of some useful apps | D.the reasons why people use apps |
【推荐3】
The Cloud Collector’s Handbook This book is handy to carry around. It is written by Gavin Pretor Pinney, the founder (创始人) of the Cloud Appreciation Society (协会) in the UK. You can write down different things in it, such as when and where you spot (发现) a kind of cloud. |
The Cloud Appreciation Society Website The society started in 2005 and now it has cloud spotters from 120 countries and regions. They often post their cloud photos on the website. You can talk with other spotters about the photos there. |
Cloud Spotter The app’s library can help you learn about the 40 different kinds of clouds. When you post cloud photos, you can get “stars”. You can also compete with other cloud lovers worldwide. |
A.In 2006. | B.19 years ago. | C.In 2015. |
A.a book | B.a website | C.an app |
A.You can compete with other cloud lovers in the book. |
B.You can talk with other spotters about the photos on the website. |
C.The app’s library can help you learn about fourteen different kinds of clouds. |
Each year, Lunar New Year is symbolized by one of 12 zodiac animals.
This is based on a story about the Jade Emperor trying to find a way to measure time. He told the animals they were to compete in a race. The first 12 animals to complete the race would be rewarded by having a year named after them. These animals are the rat, ox, tiger, rabbit, dragon, snake, horse, goat, monkey, rooster, dog and pig.
2023 is the Year of the Rabbit. The last time there was Year of the Rabbit was in 2011. The next one will not be until 2035.
In the story of the Jade Emperor, the rabbit was the fourth animal to complete the race. The rabbit was so confident that he would win that he took a nap allowing three other animals to arrive before him.
In traditional Chinese Culture, Rabbits are quiet and agile(敏捷的), which suits traditional Chinese aesthetic(审美的)values of being gentle and cultivated(有教养的). There is a view in Chinese culture that rabbits are smart and gentle. This is shown by the phrase “dongrutuotu”, a Chinese idiom used to describe people who are as smart and agile as rabbits. So it is believed that people who were born in the Year of the Rabbit would have the characteristics including being kind, agile, quiet and responsible.
There is also a legend about a Jade Rabbit living on the moon which is the pet of Chang’e, a goddess widely known in China. This can explain why rabbits are regarded as an auspicious(吉祥的) sign.
In addition, in ancient China, people generally believed that the more children you have, the luckier and happier you will be. This belief makes the rabbit a popular symbol of good luck and fortune, because the rabbit is naturally full of vitality(活力)and fertility(生育能力).
So, now it’s the rabbit’s turn. Maybe the Year of the Rabbit can bring you good luck!
1. What year may the year of 2025 be called in Chinese zodiac animals from the article?A.The Year of the Tiger. | B.The Year of the Rabbit. |
C.The Year of the Rat. | D.The Year of the Snake. |
A.The person who was born in 2021. |
B.The person who the Jade Emperor liked most. |
C.The person who has characteristics of being quick, gentle and responsible. |
D.The person who likes the rabbit as his/her pet. |
A.Because the rabbit is very popular with Chinese people. |
B.Because many Chinese people regard the rabbit as an auspicious sign. |
C.Because the rabbit has the ability of vitality and fertility. |
D.Because people hope to have children who are good at running. |
【推荐2】Most adults show less interest in climate(气候)change than young people. Yet it's adults who have the power to influence the policies(政策)causing climate change. Now a new study shows that teenagers may be able to raise their parents' interest in human effects on climate.
In the study, a new curriculum(课程)was used in some schools in coastal North Carolina. The students worked on four activities centered on the connections between climate change and local wildlife. They also took part in a community-based project and interviewed their parents about the changes in weather they had noticed in their lifetimes. To see how attitudes changed as a result of the program, the researchers surveyed both students and parents at the beginning and the end of the study.
The study shows the students who completed the climate change module cared more about the issue(问题). The effect was even stronger among parents. Experts say the program's success had a lot to do with how teachers dealt with climate change in the classroom.
"Reading a textbook and completing a worksheet are unlikely to lead students to talk about their day at the dinner table, ”says Martha Monroe, an expert on environmental education at the University of Florida. Instead, the researchers designed hands-on lessons focused on local issues. For example, one task involved monitoring the weather outside the school and comparing it with historical information about the area.
Those activities may have helped increase parental involvement. "If you can get kids so excited and talking with their parents about what they are learning in schools, parents will want to learn, ”says Danielle Lawson, a social scientist and leading researcher of the study. However, she adds, “We are not telling the students what to think or what to say. That way, kids didn't feel that there was all this responsibility put on them to change their parents' minds about anything.”
Lawson is hopeful that kids can boost their parents' understanding of climate science. "I know how powerful kids can be, ”Lawson says. "Kids don't need a special curriculum to discuss climate change at home. They just need to talk to their parents about what they see going on.”
1. The second paragraph is mainly aboutA.how the study was carried out |
B.how the activities were designed |
C.why a new curriculum was introduced |
D.why both students and parents were surveyed |
A.It developed students' communication skills. |
B.It focused on lessons about climate change in textbooks. |
C.It helped students feel responsible to change their parents. |
D.It created more chances for families to talk about climate change. |
A.check | B.express | C.improve | D.share |
【推荐3】Do you have any foreign friends? Do you know their characteristics(特征)?
The Germans(德国人)are very quiet and they always keep calm. They don’t like to speak more words. They look very serious. They like different kinds of amusements(娱乐). The Germans are very hard-working. They like tidiness, especially the women, who always keep their house clean.
In some ways, the Englishmen look the same as the Germans. They are very quiet and never talk too much with the strangers. They are really polite, so we often hear they say “Thank you” or “Sorry”. The gentlemen are also the Englishmen.
The French’s holidays are very long. They like traveling and usually spend their long time staying in other countries. The Frenchmen are more outgoing than the Germans. It is very easy to make friends with them.
Compared to the Frenchmen, the Americans are more outgoing. And they are even opener than all of the Europeans. They don’t like to depend on others. So it is very common that the students do part-time jobs in their free time. And in American’s eyes, success is an important part in their life.
1. What the passage is mainly about?
A.Differences among the 4 people. |
B.What the Europeans have in common. |
C.The importance of making foreign friends. |
D.Relationship between Europeans and Americans. |
A.The Germans. | B.The English. | C.The French. | D.The Americans. |
A.the Germans are better off than other Europeans |
B.kids in America don’t like to go to school |
C.Europeans are easier to make friends with |
D.Englishmen and Germans have a lot in common |
A.Hard-working. | B.Polite. |
C.Outgoing. | D.Independent. |
A.the French enjoy life more than work |
B.the English are not friendly to strangers |
C.German women mostly work at home |
D.the Americans love nothing but success |
He spends a lot of time choosing a good and cheap present in a toy shop, but he can’t find anything. He goes to the next shop. There are some beautiful hair clips in it. Bill likes them very much. He knows Amy wants to have one all the time. He chooses a blue one. It’s not expensive. It costs 7 yuan. He goes back home happily.
1. When is Amy’s birthday?
A.This Friday, October | B.This Sunday |
C.Next Monday | D.Next Friday, October |
A.clothes | B.flower |
C.toy | D.fruit |
A.Happy. | B.Bad. |
C.Hungry | D.Tired |
A.white | B.blue |
C.yellow | D.red |
A.1 yuan | B.7 yuan |
C.9 yuan | D.11 yuan |
Antarctica (南极洲) is the coldest, driest and windiest place on our planet. What would it be like to live and work there? On Oct. 15th, 2019, 50 Chinese scientists set sail from Shenzhen, heading for Antarctica. This was our country's 36th Antarctic expedition. The ship, Xuelong 2, is the first icebreaker made in China. Xuelong 2 is one of the world's best research icebreakers.
It can sail to any place around the world in one trip without refueling (加燃料). It can work in temperatures as low as -30%℃. It is the first in the world to use two-way ice-breaking technology, which means that it can break the ice while moving forward or backward.
Because of Antarctica's special environment, scientists from around the world have been there to do studies for many years. The study of Antarctica's geology (地质) is also important. Rock in Antarctica can tell scientists what the weather was like a long time ago. And they can help scientists understand how the earth has changed over time. There are also many wild animals, such as penguins and seals. Scientists can learn how animals live in cold places by studying them.
As we all know, life in Antarctica is not easy-it's cold and sometimes dangerous. But scientists say it's still quite fun. For example, some scientists study how penguins walk, what they eat and why they move from one place to another. They are excited to see the cute animals playing around. They hope their studies can help protect them.
Xuelong 2 finished its tasks and returned to Shanghai on April 22, 2020.
1. How many Chinese scientists headed for Antarctica on Oct 15th, 2019?A.Fifteen. | B.Nineteen. | C.Fifty. | D.Two hundred. |
A.the first icebreaker made in the world |
B.the first in the world to use two-way ice-breaking technology |
C.one of the best research icebreakers in China |
D.the second icebreaker made in China |
A.how the weather has changed | B.the geology and wild animals |
C.the original plants | D.how the rock disappeared |
A.Not easy but still quite fun. | B.Dangerous and boring. |
C.Hard and dangerous. | D.Safe but quite tiring. |
【推荐3】It's important for students to wear uniforms. Should teachers wear uniforms, too? Many people say “yes”. Here are some reasons(原因) why teachers should wear uniforms.
First, wearing uniforms can help the teachers communicate (沟通) well with each other. Wearing uniforms can also show they like their school and they love to work there.
Second, uniforms can help the teachers get more respect (尊敬) from their students. Uniforms can show the teachers’ authority(权威) at school. And the students will listen to him or her more carefully.
Third, the students like to talk about their teachers’ clothes. If a teacher dresses too fashionably (时尚), the students will be busy looking at the teacher’s clothes. If a teacher dresses too poorly (穷酸), the students may laugh at the teacher. But if teachers wear uniforms, there won't be any problems.
1. In the passage, _________ reasons tell us why teachers should wear uniforms.A.two | B.three | C.four | D.five |
A.get more respect from their students | B.become more beautiful |
C.communicate better with their students | D.know more about their students |
A.wearing uniforms is a kind of fashion |
B.wearing uniforms shows teachers' love to school |
C.uniforms help the students get respect from teachers |
D.wearing uniforms makes teachers look poor |
A.how to be a good teacher |
B.how to communicate with the students |
C.why the teachers should wear uniforms |
D.the students and the uniforms |
【推荐1】New Year's Eve is very important to many people. Many people celebrate it and start thinking about New Year's plans at this time of the year. Some people celebrate New Year's Eve at home, while others do that outside. They get together in public places such as Times Square in New York City, or Trafalgar Square in London. There is usually a big clock in the square. When it is close to 12 o'clock at night, people begin to count down (倒计时) for the closing seconds of the old year:10, 9, 8 … The second into New Year's Day, everyone is in high spirits — they jump, shout and wish each other a “Happy New Year”. In some parts of the world, including in the United States, many people sing “Auld Lang Syne” during the New Year's Eve celebrations.
1. Where is the Trafalgar Square?A.In China. | B.In the USA. | C.In the UK. | D.In France. |
A.city | B.festival | C.clock | D.song |
A.Why people celebrate New Year's Eve. | B.How people celebrate New Year's Eve. |
C.When people celebrate New Year's Eve. | D.Where people celebrate New Year's Eve. |
Humans and AI can work together to make art more interesting.
A special copyright (版权) case has recently drawn attention because it is related to (和......有关的) artificial intelligence (AI). A court (法庭) in Shenzhen ruled that a news report written by Tencent’s AI enjoys copyright protection. A website broke the law because it used the article without permission (允许).
This is the first case in China that has provided copyright protection to work done by AI. But what does it indicate (表明)? Will AI take the place of creative workers in the future?
Probably not. AI is not yet able to write creative stories. The news report mentioned (提到) above is mainly about data. Since AI is good at processing (处理) data, it is often used to write financial (金融的) reports. Some newspapers also use AI to report on stories about natural disasters (灾害), which mainly require (需要) basic facts such as “where” and “when”. As Forbes wrote, instead of losing their jobs, journalists can make their work more efficient (高效的) by using AI so that they can focus more on storytelling and less on numbers.
AI is actually being helpful in many creative fields. For example, Wayne McGregor, a British choreographer (编舞), is famous for using AI to create new dances. For him, AI is a powerful tool that can help choreographers break out of common movements (动作). McGregor is not worried that AI might replace human artists. “AI can’t judge (判断) the quality (质量) of the choreography,” he said.
“It’s time to stop worrying about if AI can be creative,” according to Forbes. Instead, we should focus on how humans and AI can work together in ways that we have never dreamed of before.
1. According to the copyright case related to AI, we know that ________.A.AI can also break the law. |
B.news stories cannot be written by AI. |
C.articles written by AI also have copyright protection. |
D.AI can copy others’ articles without permission. |
A.Sci-fi stories. | B.Disaster reports. | C.Horror stories. | D.Poems. |
A.AI helps him do creative work |
B.AI can create new dances by itself |
C.AI might replace human artists |
D.AI can teach people how to dance |
A.Many jobs will disappear due to AI. |
B.We should make laws for AI. |
C.AI is difficult to use. |
D.We should work together with AI. |
【推荐3】Tree Climbing Course
The students in the USA started to take tree climbing courses in the 1980s. Now over 1,000 schools offer tree climbing courses to students in the USA.
Xiamen University was the first school in China to teach students to climb trees in 2012.
Suzhou No. 1 Junior High School also offers a tree climbing course to students.
Swimming Course
Starting from 2017, the new students in Tsinghua University need to take a swimming test at the beginning of their university life.
All primary and middle schools in Hainan will set up swimming courses in 2019. This year the government is busy building swimming pools for schools—at least one for each town, hoping that every student will be able to swim before they leave school from 2020 on.
1. There are kinds of courses mentioned in the passage.A.2 | B.4 | C.6 |
A.Xiamen University |
B.Tsinghua University |
C.Suzhou No. 1 Junior High School |
A.2018 | B.2019 | C.2020 |
A.China started tree climbing courses earlier than the USA. |
B.Hainan will build at least one swimming pool for each town. |
C.Students in Suzhou need to take a swimming test. |
A.climbing trees | B.building swimming pools | C.setting up new courses |