China’s major telecom carriers (电信运营商) will start to provide 5 G services in China. The “G” in 5 G refers to the generations of mobile technologies. 1 G let us talk to each other, 2 G let us send messages, 3 G gave us mobile data (数据) and the Internet, and 4 G made all of these things a little faster.
Now 5 G promises much faster speed, and more connections. This means that you will be able to download an entire HD movie in seconds and only experience a short delay (延迟) between sending and receiving data.
According to The Times, 5 G will be able to improve many advanced technologies. With a 5 G network, the short delay in information exchange will allow driver less cars to run more safely, as they will be able to communicate in real time and avoid possible dangers. Meanwhile, 5 G—enabled wearable products will keep doctors in touch with their patients and warn them right now if there’s something wrong. Besides, VR games will be more popular with 5 G. The short delay of 5 G will make games feel even more real.
But 5 G is not perfect. For one thing, 5 G will not “travel”far. On 4 G networks, you can be 10 kilometers away from the nearest transmission base (传输基地). But 5 G will only cover about 300 meters, meaning that we will need more transmission bases so that we can get signals. And in order to use 5 G, we have to buy new products designed for 5 G that are expensive now.
1. What can’t we do with 5 G?A.Play games quickly and safely. |
B.Experience more network connections. |
C.Make VR games more popular. |
D.Download an HD movie in seconds. |
A.About 3 kilometers. | B.About 10 kilometers. |
C.About 300 kilometers. | D.About 300 meters. |
A.Fewer transmission bases will be needed in the near future. |
B.New products designed for 5 G are inexpensive now. |
C.If patients have difficulty, doctors can help them at once with the help of 5 G. |
D.There will be no delay in information exchange with 5 G. |
相似题推荐
【推荐1】Once upon a time there was no tea at all in England. People there used to drink a light beer(啤酒). No coffee or milk but large glasses of beer stood on the breakfast table!
When tea was first brought to England, an old couple got some as a special treat. But they did not know how it should be used. They cooked the leaves in hot water, and spread them on a piece of bacon(熏肉) which they were going to have for dinner. They ate the leaves, and threw the tea away! However, tea is becoming as popular as coffee and milk in England today.
Tea is the leaf of a plant which grows widely in China, Japan and some other countries. Tea farmers usually grow many tea plants on a large piece of land. When the tea leaves are ready to be picked, it is the busiest time for tea farmers in a year. They pull off the leaves and dry them. In their spare time, they pick out the best leaves and get them ready for the market. In China, whenever a visitor comes into a house, he is served with a cup of tea.
1. What was served for breakfast in England long ago?A.Beer. | B.Tea. | C.Coffee. | D.Milk. |
A.They sold them. | B.They ate them. | C.They burnt them. | D.They threw them away. |
A.serve visitors at home | B.sell tea in the market |
C.pick and dry tea leaves | D.look for a piece of land |
【推荐2】Many people believe hot pot can really tell how much Chinese like to get together to enjoy happiness. A new documentary, Pot of Fire allows Internet users to “enjoy” hot pot together online. If you want to look for a nutritious meal to share with your family, you should choose hot pot. Hot pot has a history of more than 1,700 years in China. To keep out the cold, people pull lamb chops in the boiling pot and ate them. Ingredients in Hot pot should be selected carefully. Only five parts of a lamb should be used and cut into sheets for cooking. The sauce is composed of more than ten seasonings. The ingredients of the sauce are the commercial secret of hot pot. There are various styles of it. Vegetables and meat can be boiled in hot pot. Sharing hot pot meals of meat and vegetables boiled in savoury both with your family is a great experience in the depth of winter.
Some people think hot pot can bring warmth to our body in winter and help cool the body in summer. But eating hot pot is much more than enjoyment for our mouth and health. It’s also a connection of life and friendship. For most Chinese people, eating hot pot is usually a social event. A survey showed that 40.2 percent of Chinese usually eat hot pot with friends, while 17.6 percent with family.
When a group of people sit around a table to eat, chat and drink, it’s a good time. So if you feel hungry or lonely, why not cook hot pot to fill your stomach and heart as well? Or at least you can watch Pot of Fire. (Update (更新) at 21:00 every Friday from February 14th on Tencent (腾讯)).
根据短文内容,判断下列句子正T、误F。
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More and more people around the world are taking part in some dangerous activities. Of course, many people have climbed the highest mountains or explored unknown parts of the world. Now, however, there are people who want to get quick pleasure from a dangerous activity, which may only last a few minutes or even seconds.
Ⅰ think bungee jumping is a good example of such an activity. You jump from a high place 200 meters above the ground with an elastic rope (弹力绳) tying to your ankles (脚踝). You fall at up to 150 kilometers an hour until the rope stops you from hitting the ground. Besides, you should be of a proper weight. Generally, you have to be over 50 kilos but less than 100 kilos. And those with a heart disease aren't allowed to do so. So far over 2,000,000 people around the world have now tried bungee jumping. Other activities, such as jumping from the tall buildings and diving into the sea from the top of high rocks are as dangerous as bungee jumping.
Like other sports, injuries can still happen, and there have been deaths. Mostly, what may cause death is to use a rope that is too long. The rope should be fully shorter than the height of the jumping place so that there is enough room to jumpers. Either slowing down or keeping speeding up depends upon the speed of falling.
Since there are dangers, why do people take part in such activities? Some scientists think it is because life in modern society has become safe and boring. Now life has little excitement.
1. Exploring unknown places is regarded as a dangerous activity.2. Before you start bungee jumping, an inelastic rope should be tied to your ankle.
3. Some people get injured after bungee jumping.
4. You are allowed to join in the bungee jumping as long as you are of a right weight.
5. People expect to seek for excitement from bungee jumping.
【推荐1】New payment Methods for online Shopping in China
Payment ways | Alipay (支付宝) | Tenpay (财付通) | Douyin (抖音) | (微信) |
Appearing time | Dec.12, 2004 | Sept.9, 2005 | Jan.19,2021 | Jan.12, 2011 |
Companies | Taobao | Tencent | Byte Dance | Tencent |
Description | A transfer (中转) station (a third account between sellers and buyers) | Buyers’ money goes directly to the sellers | ||
Ways | Through computers or mobile phones | Mobile phones | ||
The number of cooperative banks | 180 | 5 | 10 | 11 |
The number of users | 1,000,000,000 | 3,000,000 | 600,000,000 | 1,200,000,000 |
1. According to the form above, we can know some information about ________.
A.online shopping | B.new payment methods | C.online stores |
A.Tenpay and WeChat pay | B.Douyin and WeChat pay | C.Alipay and Tenpay |
A.a transfer station | B.the cooperative bank | C.the seller’s mobile phone |
A.Alipay only | B.WeChat pay only | C.the other three methods except WeChat pay |
A.Alipay has more users than the other three. |
B.Douyin was put into use later than the other three. |
C.It’s the most convenient for you to use Tenpay because it has the most cooperative banks. |
【推荐2】Artificial Intelligence (AI)
1960s—1970s | 1980s—1990s | 2000s—2010s | Now |
The first industrial robot started working in a car factory. Another robot called “Shakey” could move and follow basic instructions. | WABOT-2 could communicate with a person, read music and play an instrument. Deep Blue became the first computer to beat a world champion (冠军) chess player. Computers were able to do translations by learning languages on the Internet. | A driverless car was able to pass a driving test in the USA. ASIMO was the first robot that could walk as fast as a human in 2000. It served food in a restaurant. | Virtual assistants (虚拟助手) on phones and at homes are able to understand human speech and to learn people’s habits and preferences. Computers can now score higher marks than humans in reading tests. |
1. How many robots are mentioned between the 1960s and the 1970s?
A.2. | B.3. | C.4. | D.5. |
A.Shakey. | B.WABOT-2. | C.ASIMO. | D.Sophia. |
A.Working in a car factory. | B.Passing a driving test. |
C.Serving food in a restaurant. | D.Beating a chess player. |
A.Honest. | B.Smart. | C.Careful. | D.Patient. |
A.Science. | B.Sports. | C.Health. | D.Travel. |
【推荐3】Most of the people use smartphones. They like using instant messaging apps (即时通讯应用程序) to communicate with friends. These apps have become a big hit because they are convenient and more importantly, free. Let’s have a look at three of the most popular instant messaging apps in the world.
WeChat: It is a mobile messaging app by China’s Internet company Tencent in 2011. Now it has become more popular than Weibo, which appeared in 2010. It is more than an instant messaging app. Users can pay bills, play games, post photos and so on.
WhatsApp: WhatsApp Messenger is a mobile messaging app. WhatsApp I appeared in 2009. It allows you to exchange messages without having to pay for Short Message Service. In addition, WhatsApp users can create groups, send each other unlimited (无限的) images, voice messages and videos. It was set up in Silicon Valley (硅谷), California. You may ask what the name means. Well, “WhatsApp” sounds like “What’s up?”, an informal greeting between friends.
Line: Line is a smartphone app created by NHN Japan in June, 2011. Like other similar instant messaging apps, users can make free voice calls and send free messages to friends. Besides, Line provides funny stickers (贴图). Line is popular in China because it appears in the famous South Korean TV series My Love from the Star.
1. What is the more important reason that people like instant messaging apps?A.They can send messages quickly. | B.Users don’t need to pay for them. |
C.These apps are convenient. | D.They don’t like writing letters. |
A.Weibo. | B.WeChat. | C.WhatsApp. | D.Line. |
A.Play some games, like playing card games. | B.Send photos to WeChat friends. |
C.Pay for something on WeChat. | D.Change photos into funny stickers. |
A.The passage introduces three of the least popular instant messaging apps. |
B.WhatsApp Messenger is created by a company from the USA. |
C.WeChat is popular because of the South Korean TV series My Love from the Star. |
D.People often greet others by using “What’s up?” in formal situations. |
【推荐1】It is often said, “You can’t live only on air.” But now the Chinese scientists can tell you: Maybe you can.
Recently, some Chinese scientists have developed a new technique (技术). They turned CO2, one of the main greenhouse gases, into starch (淀粉).
Starch is the main part of flour (面粉) and rice that we eat every day. Usually, it’s created by plants with CO2, water and sunlight. According to the team’s director Ma Yanhe, it takes the plants nearly 60 steps to produce starch. But now, the team, after six years of hard work, has found a simpler way to do this, with only 11 steps.
“Our study shows that creating something like starch is possible in a lab, and this technology may be helpful in many areas.” said Ma.
The scientists first turned CO2 and hydrogen (氢气) into methanol (甲醇). Then they pieced (分解) these methanol molecules (分子) into bigger and more complex (复杂的) molecules. Finally the starch was produced.
This method makes it possible to produce food in factories, taking the place of traditional farming. This will not only help make plenty of food, but also save water and land. It may also help recycle CO2 to deal with climate (气候) change, according to China Daily.
The study can be helpful in space, too. Astronauts may no longer need to worry about their food as they travel in space. They may simply turn the CO2 they breathe out into the food they eat!
1. With a new technique, the Chinese scientists could turn CO2 into ________.A.air | B.water | C.sunlight | D.starch |
A.CO2 and water | B.water and sunlight |
C.CO2, water and sunlight | D.CO2 and hydrogen |
A.How the starch was produced. | B.It’s difficult to turn CO into the starch. |
C.Scientists can do complex work. | D.It tells us the importance of the starch. |
A.save water and land | B.produce food in factories |
C.send astronauts into space | D.recycle CO2 to deal with climate change |
【推荐2】Robots seem very new to most people. But they have a long history. The first one was made by a Greek inventor. You may have seen robots in some films. The robots in these films are stronger, faster and cleverer than people. In real life, most robots are used in factories. They are used to do many dangerous, difficult or boring jobs. Some people can’t look after themselves and robots are used to help them. For example, some people can’t see. Many of these people use a dog to help themselves move around. This dog is called a guide dog. Scientists are making a robot to help them. In the future, robot dogs might take the place of these guide dogs.
Robots are also used in American hospitals. At one hospital, a robot takes from the kitchen to the sick people’s rooms. It never loses its way because it has a map of the hospital in its computer system.
根据短文内容,判断下列句子正误。正确的用“A”表示,不正确的用“B”表示。1. The first robot was invented by a Greek.
2. Robots can only be seen in films.
3. Robots can help some people look after themselves.
4. Today’s robots have few uses.
5. A robot cooks meals for the sick people at an American hospital.
Apps for English Learning
A. Endless Alphabet Endless Alphabet does one thing, and it does well—it helps students remember English words. You can practice spelling in some fun activities. | B. Beelingu This story-telling app is good for practicing reading. From children’s stories to articles (文章) on science, reading in English gets interesting! |
C. Hello Talk Do you want to talk with native speakers (说母语的人)? Hello Talk is right for you! It can help you build confidence (信心) in English speaking. | D. Playtime Playtime can help you learn English in a different way. It has over 100 children’s songs. You can listen to music and learn English at the same time. |
I’m not good at reading. My teacher tells me to read some English stories. | ||
I can’t speak English well. And I want to practice my English by talking with others. | ||
I can’t remember English words well and I want to practice spelling. |
【推荐1】Many people like animals. Now a lot of people keep animals as pets. Usually people like to keep dogs, cats, fish and other animals. Many young people keep animals because they think these animals are interesting. Some old people keep pets because they don’t live with their children.
Robin lives in No.20 Garden Street. He is a doctor, but he helps dogs. People usually call him The Dog Doctor. When their dogs get sick, they call him on the telephone. He goes to the people’s houses and helps them. He gives the dogs medicines (药物). Wherever (无论哪里) he goes, he is always welcome.
1. What kind of animals do people keep?A.Dogs. | B.Cats. | C.Fish. | D.All of above. |
A.Because they don’t have children. |
B.Because they don’t live with their sons and daughters. |
C.Because they think animals are interesting. |
D.Because they can eat them. |
A.高兴的 | B.生病的 | C.有趣的 | D.健康的 |
A.A Dog Doctor | B.A New Pet Store |
C.Pets and Doctors | D.An Interesting Animal |
【推荐2】It is human nature to love celebrations. Some festivals have been celebrated tor centuries or thousands of years. So, what are the reasons behind all these celebrations?
Some festivals are celebrated in memory of (纪念) an important person or an important event, such as the Dragon Boat Festival in China and the Independence Day in the U.S. Some festivals are celebrated to welcome new life, such as the Spring Festival in China and Easter in Western countries. All these festivals are of great importance and have become necessary parts of the country’s culture.
People also celebrate festivals for social and economic (经济) reasons. Festivals can bring freshness to life and make it more colorful. The celebrations of a national festival are also good chances to make people feel closer and become more united (团结的). Besides a country’s economy may get active because of the celebrations of some festivals.
Festivals can also be celebrated for psychological (心理的) reasons. A patient may feel better because of the celebration of an event. And these feelings can work as medicine and the patient may get well without any treatment. Sometimes a person gets well from a serious illness just by thinking he should remain alive so that be could celebrate festivals with his family members. So festivals can sometimes work as a reason for living.
When we celebrate festivals, we also remember the historical events related to them. Our ancestors usually set festivals to celebrate the victory over an event in which they fought for their rights (权利). National festivals like Independence Day, remind us of the history of the nation and the efforts that the country had made for freedom.
1. What is the main idea of Paragraph 2?A.Some festivals show a country’s culture. | B.Some festivals improve economic growth. |
C.Some festivals make patients feel better. | D.Some festivals have some historical meanings. |
A.a part of scientific life. | B.a part of economic life. |
C.a part of cultural life. | D.a part of historical life. |
A.Some festivals don’t need people to spend money on it. |
B.Economic growth is mainly because of the celebrations of festivals. |
C.Hospitals sometimes celebrate festivals to make patients feel better. |
D.There’s usually much knowledge behind a festival. |
A. | B. | C. | D. |
Hello, we are students from Thailand, and we want to save the elephants. The elephant is one of Thailand’s symbols. Our first flag had a white elephant on it. This is a symbol of good luck.
Elephants are smart animals. They can play soccer or music. They can also draw very well. People say that “an elephant never forgets”. Elephants can walk for a long time and never get lost. They can also remember places with food and water. This helps them to live.
But elephants are in great danger. People cut down many trees so elephants are losing their homes. People also kill elephants for their ivory. Today there are only about 3,000 elephants (over 100,000 before). We must save the trees and not buy things made of ivory. Remember that March 13th is Thailand Elephant Day.
1. The elephant is a symbol of bad luck.2. Elephants are small animals.
3. Elephants can walk for a long time, and they can remember the places with food and water.
4. People kill elephants for their ivory.
5. There are over 100,000 elephants today.