| A．Return a ticket to the woman. | B．Cancel his reservation. | C．Buy a plane ticket. |
2 . Researchers have proposed a novel method for counting and tracking vehicles on public roads, a development that could improve current traffic systems and help travelers get to their destinations faster.
Using the cameras already installed on campus buses at the Ohio State University, researchers proved that they could automatically and accurately measure counts of vehicles on urban roadways, detect objects in the road and distinguish parked vehicles from those that are moving.
In previous studies, Ohio State researchers found that using these mobile cameras provides much better spatial and temporal (时间的) coverage than relying on often temporarily placed sensors that don’t provide a view of many streets and roads in a city.
“If we collect and process more high-resolution (高清) spatial information about what’s happening on the roads, then planners could better understand changes in demand, effectively improving efficiency in the broader transportation system,” said Keith Redmill, lead author of the study.
“If we can measure traffic in a way that is as good or better than what is conventionally done with fixed sensors, then we will have created something incredibly useful extremely cheaply,” he said. “Our goal is to start building a system that could do this without much manual intervention because if you want to collect this information over lots of potential vehicles and lots of time, it’s worth fully automating that process.”
While still a long way from total implementation (实施), the study suggests the system’s results bear promise for the future of intelligent traffic surveillance. Transportation planners, engineers and operators make vital decisions about the future of our roadways, so when designing transportation systems to work over the next 30 to 50 years, it’s necessary that we give them data that allows them to improve the efficiency of the system and the level of service provided to travelers.
1. How can cameras on buses benefit travelers?| A．By shortening their travel time. |
| B．By making their schedules tight. |
| C．By decreasing their transport cost. |
| D．By improving their safety awareness. |
| A．They provide more spatial coverage. |
| B．They can’t detect objects on the road. |
| C．They cover less view of the urban traffic. |
| D．They accurately record the flow of traffic. |
| A．Operation. | B．Monitoring. | C．Protection. | D．Arrangement. |
| A．Transportation automation is on its way |
| B．It is time to improve the efficiency of traffic system |
| C．Transportation planners use cameras to make policies |
| D．Cameras installed on buses can better measure traffic |
| A．At 1:00 pm. | B．At 1:30 pm. | C．At 2:30 pm. |
4 . Over the past 50 years, it turns out that high-speed trains are not just reducing journey times, but most importantly, it’s driving economic growth, creating job opportunities and bringing communities closer together.
Although Japan started the trend with its Shinkansen “Bullet Trains” in 1964, it was the coming of France’s TGV in the early 1980s that really promoted a global high-speed train revolution that continued to speed up. China has built around 42, 000 kilometers of high-speed railways since 2008 and plans to top 70,000 kilometers by 2035.
But the United States detoured the revolution. For the rich and economically successful nation on the planet, with an increasingly urbanized population of more than 300 million, it is increasingly difficult to give a good reason. Cars and airplanes have dominated long-distance travel in the United States since the 1950s.Now Americans still almost entirely depend on crowded highways or airline networks that are easy to collapse.
“Many Americans have no concept of high-speed rail and fail to see its value,” says William C. Vantuono, editor-in-chief of Railway Age, North America’s oldest railroad industry publication.
“It’s logical that the United States hasn’t yet developed a nationwide high-speed network, "says Scott Sherin, chief commercial officer of train builder Alstom’s US division. “For decades, traveling by car wasn’t a hardship, but as highway congestion (堵塞) gets worse, we’ve reached a stage where we should start looking more seriously for the alternatives.”
“The magic numbers are centers of population with around three million people that are 200 to 500 miles apart, giving a trip time of less than three hours — preferably two hours, where those conditions apply in Europe and Asia, high-speed rail reduces air’s share of the market from 100%to near zero. The model would work just as well in the USA as it does globally.” adds Scott Sherin.
1. What is paragraph 1 mainly about?| A．The value of high-speed trains. | B．The growth of high-speed trains. |
| C．The hardship of high-speed trains. | D．The revolution of high-speed trains. |
| A．To introduce a new topic. | B．To give a possible explanation. |
| C．To define a meaning. | D．To draw a comparison. |
| A．Didn’t get involved in. | B．Didn’t change. |
| C．Didn’t give up. | D．Didn’t protest. |
| A．It is developing high-speed rail. | B．It should be cautious. |
| C．It is losing its market share. | D．It should be flexible. |
| A．At 11:00 tonight. |
| B．At 6:00 tomorrow morning. |
| C．At 11:00 tomorrow morning. |
| A．10:20. | B．10 :12. | C．10 :32. |
| A．At the airport. | B．In the hospital. | C．At the train station. |
1. 目前汽车带来的空气污染和交通堵塞问题；
2. 骑自行车的益处，既能环保，有利健康等。
注意：1. 词数100左右；
2. 可以适当增加细节，以使行文连贯；
参考词汇：低碳生活 (low-carbon life)；节能 (energy saving)
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9 . Like all big cities, Paris has a traffic problem: lots of cars, lots of traffic jams and lots of pollution from exhaust fumes (废气). So the city began a scheme (计划) to improve the situation.
Under the Velib project ('Velib' comes from vélo liberté, or 'bicycle freedom') people can take a bicycle, use it for as long as they want, and then leave it at the same or another bicycle station. The first half-hour on the bike is free, but if you don't return it after 30 minutes, you have to pay. But it's only €1 a day or €29 a year! The bicycles are heavy (25 kg), and they are all grey and have baskets. There are about 20,000 of them in the city, and around 1,450 bicycle stations. So there are a lot more Velib stations than the 298 subway stations!
Paris is not the first city to have a project like this. But not everybody thinks it's a great idea. One Parisian said, "These bicycles are only for short journeys. If people want to travel across the city, they won't use a bicycle — they'll still use their cars."
A city spokesman said, 'The bicycle project won't solve all our traffic problems, of course. But it might help reduce air pollution. Traffic, together with factory fumes, is a big problem. There aren't any simple answers to traffic problems and pollution in cities. But unless we do something now, there will be more traffic jams and temperatures will continue to rise, so the problems in our environment will get worse. The bikes might help people to lead a healthier life, too.'
1. What can we learn about the Velib scheme?| A．Its bikes have no baskets. | B．Its bikes are light and colorful. |
| C．It aims to make traveling easier. | D．It owns more stations than the subway. |
| A．€l | B．€30 | C．€29 | D．no money |
| A．The cost is rather high. |
| B．It's hard to find a Velib station. |
| C．It's not suitable for a long journey. |
| D．The distance between two Velib stations is long. |
| A．Doubtful. | B．Positive. |
| C．Uncaring. | D．Worried. |
According to the history, Chinese silk reached Rome before the time of Christ. Through the Silk Road, the Chinese culture
As is
Up to now, the Silk Road in China
