Could you imagine being in a car driven by a computer, not a human? Recently, China has made a big step toward self-driving cars.
Since August, driverless taxis can run on roads in Wuhan, Chongqing and Shenzhen. Self-driving cars bring us many benefits. They use computers to sense the things around them and make better use of space. This means fewer traffic jams and better parking of cars. For disabled or blind people, self-driving cars can also help them get around more easily.
According to US Centers for Disease Control and Prevention, more than 1.35 million people are killed on roads around the world every year. Many more are injured. Self-driving cars could reduce road accidents by 90 percent and save governments a lot of money, said the website TechDim. The main cause of car accidents is human mistakes. By using computers, self-driving cars don’t make poor decisions or lose attention like humans do.
But self-driving cars aren’t perfect. If something unexpected on the road happens, self-driving cars can’t react as fast as a human driver could. Also, during weather events like heavy snow, self-driving car s would struggle (费力) to see the lines on the road. It might lead to an accident. The car’s computer system could also get hacked (非法入侵) by someone, causing it to crash or change its destination (目的地).
It’s clear that there is a lot of work to do to make self-driving cars a common and safe sight on our roads.And China is taking the lead in making this happen.
Title | |
Benefits | ◆There will be fewer traffic jams with the use of computers in the car. ◆The cars can make good use of the space, and people can park cars easily. ◆The lives of the disabled will be ◆ |
Imperfection(不完美) | ◆The cars can’t react faster than a human driver if something unexpected on the road happens. ◆The cars would ◆Getting the car’s computer system hacked will lead to the |
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Cycling is kind to the environment so it is an excellent way to take in the city. Here are 4bike-friendly cities having adopted this green mode of transport to reduce greenhouse gas emissions.
Montréal, Canada
Montréal has already established protected bike paths since the 1980s. BIXI is the city’s bike-sharing system with 9, 600 bikes and almost 800 stations. Cyclists can make their visit to the Tour de L’lle Montreal, a yearly bike ride where cyclists take to the streets for a day without any other vehicles being allowed on the roads.
Malmö, Sweden
Cycling in Malmö is enjoyable due to the relaxed and easy-going manner of most cyclists. The calming atmosphere makes it a great experience, even for nervous riders. A highly recommended bike route is from Ribersborg park to Limhamn Harbour, where riders can take a few good photos of the famous Oresund Bridge.
Beijing, China
In the 1970s, bicycles were the main mode of transportation for people in Beijing. However, dedicated (专用的) cycle paths for cyclists were limited. Only in May 2019, did the city launch its first specific cycle path. This achievement in cycling facility is worth a shout-out for a city with over 21 million people.
Bogota, Colombia
Bogota first introduced the concept of cycle path in 1974. The idea sees cars being banned from city roads every Sunday from 7 a.m.to 2 p.m., helping cyclists, runners and walkers exercise safely. Since then, the city has slowly but steadily expanded the program, including setting up dedicated cycle paths. As a result, Bogota now has 550km of bike paths and is the most bike-friendly city in Latin America.
1. What make(s)Montréal different from other cities?A.A well-developed bike-sharing system. |
B.The oldest protected bike paths. |
C.An annual bicycle event. |
D.The most calming effect on cyclists. |
A.Beijing. | B.Malmö. | C.Montréal. | D.Bogota. |
A.Improvement in cycling facility. |
B.Shift in primary means of transportation. |
C.Regular investment in building bicycle paths. |
D.Multiple specific cycle paths connecting districts. |
【推荐2】Americans drove more miles in 2015 than any year since the U.S. government started keeping records 45 years ago. The U.S. Department of Transportation (USDT) recently reported that Americans drove a record of 3.148 trillion miles last year. In case you are wondering, that is enough to take 337 round trips from Earth to Pluto.
There are a number of reasons why Americans are driving more miles. The social experts agree that the first is the price of gas, which has dropped to the level of the year 2004 in the past year. The American Automobile Association (AAA) said that the average price of gas was just $1.71 a gallon. That could be the lowest price since 2004.
P.J. Sriraj, a director of the Urban Transportation Center at the University of Chicago, notes that the lower cost to fill up a car is just one reason. Another reason is that more Americans are back to work after the 2008 economic recession, and they drive to their jobs.
Besides, more Americans have to travel a long distance every day between home and the office. There are a lot of Americans who must travel more than 45 miles per day for their jobs. And as for many, there is not enough public transportation.
Because of the heavy traffic, roads are becoming more and more crowded. While modern cars are more fuel-efficient, the improvement is not enough to offset more cars on the road. “There is no doubt that driving more will make the air dirtier,” said P.J. Sriraj. And many Americans showed a great concern in a recent survey.
1. The USDT report shows that in 2015 ________.
A.Americans drove record-breaking miles |
B.Americans drove 3.148 trillion miles a day |
C.Travel to Pluto was popular with Americans |
D.The government began to record driving miles |
A.the low prices of gas and cars | B.the 2008 economic depression |
C.the Urban Transportation Center | D.more people’s coming back to work |
A.Having to drive far to work. | B.Having no public transportation. |
C.Too many cars’ pollution of the air. | D.Small improvement of modern cars. |
A.By explaining causes. | B.By giving examples. |
C.By following time order. | D.By making comparison. |
【推荐3】The London Underground is the oldest underground train network in the world. Opened in 1863, there are a total of eleven lines, 270 stations and over 400 km of track.
In the 1830s London’s authorities had the idea of linking the centre of London with the large train stations which were located farther away.
The London Underground normally operates daily between 5 a. m. and midnight. Some lines stay open throughout the night on special occasions, like New Year’s Eve. London Underground stations can get very crowded during the weekday rush hours.
The well-known symbol of the London Underground, a red circle with a blue bar, was developed at the beginning of the 20th century and has not changed much since then.
Although so many people use the underground every day, the safety record of the system is very good.
A.In 1863 the first underground railway opened. |
B.Two different types of trains travel across the city. |
C.That makes it the third longest subway system in the world. |
D.Over the decades underground stations have been modernized. |
E.Even though the system is so large, trains usually run on time. |
F.The London Underground also faces environmental problems. |
G.Some of London’s Underground stations have a special architectural value. |
Earthquake rescue robots have experienced their final tests in Beijing. Their designers say with these robots, rescuers will be able to buy more time to save lives during an earthquake.
This robot looking like a helicopter, is called the detector-bot. It’s about 4 meters long, and it took about 4 years to develop the model. Its main functions are to collect information from the air, and send goods of up to 30 kilos to people trapped by an earthquake.
This robot has a high definition 360-degree panoramic camera. It can work day and night and will also be able to send the latest pictures from the quake area.
Dr. Qi Juntong said, “The most important feature of this robot is that it doesn’t need a distant control. We just set the destination information on it, and then it takes off, and lands by itself. It flies as high as 3,000 meters, and as fast as 100 kilometers per hour.”
This robot has a different function — it can change as the environment changes. Its main job is to search for any signal of life in places where human rescuers are unable to go.
As well as a detector that finds victims and detects poisonous gas, a camera is placed in the 40-centimeter-long robot, which can work in the dark.
Another use for the rescuers is the supply-bot. With its 10-meter-long pipe, people who are trapped in the ruins will be able to get supplies including oxygen and liquids.
Experts have said that the robots will enter production, and serve as part of the national earthquake rescue team as soon as next years.
1. What are the rescue robot’s main functions?2. How is the robot is different from the other robots?
3. Please decide which part is false in the following statement, then underline it and explain why.
Earthquake rescue robots have experienced their final tests in Beijing and have served to save lives during an earthquake.
4. Explain how robots can be used in a different field in our life. (about 40 words)
【推荐2】In recent years, a number of China’s technological innovations have been making their moves in the world. Among them, four stand out with a reputation of China’s “four great new inventions” in modern times, which have made the daily life of the public more and more convenient.
1. SHARED BICYCLES
Shared bicycles, concentrating on dealing with ‘the last mile’ in people’s trips, have boomed over the last two years. Mobike and Ofo became the mainstream after the fierce market competition. According to a survey launched by Questmobile, the monthly frequency of use of the mobile amounted to 1.1 billion in September this year.
2. HIGH-SPEED RAIL
Boasting low cost and quick delivery, China has built the world’s longest high-speed rail (HSR) network. It had operated 2,595 high-speed trains by 2016, which took up 60 percent of the world’s total high-speed trains.
3. ALIPAY
Alipay, or Zhifubao, has become China’s leading mobile and online payment service, established in 2004 by China’s e-commerce giant Alibaba Group. Alipay can also be used for transferring money from one Alipay online account to another account, or from the online account to a bank account by binding a debit card to the online account.
4. E-COMMERCE
With around 731 million Internet users, China has been the world’s largest and fastest-growing e-commerce market. According to the statistics from Chinese Statistical Bureau, in 2016, China’s online retail sales reached 5155.6 billion yuan, with year on year growth up to 26.2%. Online shopping has become a vital part of life. The function of supermarket is even brought online and fresh products become available in first-tier cities now.
1. Which contributes most to the final part of a trip?A.Alipay | B.E-commerce | C.High-speed rail | D.Shared bicycles |
A.They are cheap and efficient. |
B.They are related to the Internet. |
C.They have brought great convenience to people. |
D.They are only popular with young Chinese people. |
A.A newspaper. | B.A travel journal. | C.A brochure. | D.A text book. |
【推荐3】A man in Senegal(塞内加尔)is trying to prove he can build and sell drones(无人机) in his home country.
Mamadou Diop has experience working with drones in the photography and health industries.Diop,called Dr.Drone on social media,is also one of the few people in Senegal who can repair drones.
But recently,he decided to take his knowledge of drones a step further.He is trying to build a drone made entirely in Senegal.Dion's goal is to use local materials and skilled Workers in Senegal to make the drones.He wants to prove that it is possible to make the technology in his home country.Diop says he has been able to communicate with other drone makers in France and China through the Internet.He has learned about their experiences to help him with his home-grown drone project.Diop plans to build his first locally-produced drone for use in the health industry.The drone will be designed to spread chemicals to prevent serious diseases.
However,not all of the necessary materials are available(可获得的)right now.One of the materials needed for Diop's drone is a carbon fiber that is not available in Senegal.He says he bought the material from China,and worked with local workers to shape the pieces for his drone.He got aluminum from a broken fridge to form part of the body for his drone.
Manadou Diallow is the owner of a photography shop who often uses Diop's drone services and supports his efforts to create the first"Made in Senegal"drone."There is not a large market for drones in Senegal right now,but need for the flyers is rising,"says Diallow.Diop welcomes the help,saying it is important to start making drones locallybefore foreign companies come in and sell them at much higher prices.
1. Diop's first drone is meant toA.train skilled drone makers |
B.serve in the health industry |
C.attract attention on social media |
D.take photos of his home country |
A.he gets little support from the local people. |
B.he doesn't have enough money for the project. |
C.he faces much competition from both home and abroad. |
D.he can't get some necessary materials in his home country. |
A.increasingly popular. |
B.hard to make locally. |
C.too expensive to afford. |
D.widely used in all fields. |