1 . A city in Netherlands is planning to construct a pretty bike path made of recycled wood.
The first of its kind in the world, the path near the city of Emmen will be surfaced not with the usual asphalt（沥青） but with wood chips packed together with organic resin(有机树脂).
The idea behind the path is to cut the use of conventional, less eco-friendly materials such as concrete, which is very difficult to recycle.And the creation of the wood chips will require no direct cutting down of trees; the company leading the experiment, Grontmij, plans to use waste products from sawmills(锯木厂).
The idea of creating a permanent road from a material that is celebrated for its biodegradability(生物降解性)might seem ridiculous. But the engineers working on the path insist that the wood and resin surfacing will stay in good condition for a long time, with a working life at least as long as concrete or asphalt. Rudi van Hedel, project manager of bio-based economy at Grontmij, explained that the light weight of the material also makes it far easier to move.
However, van Hedal said, “At present, the material costs of the path are higher than those of traditional paths made of asphalt or concrete, but the construction costs are comparable or perhaps slightly cheaper. We expect that as production ability increases, the costs will go down. In the future, we hope to use bio-fibres(生物纤维)that are cheaper than the wood fibres we’re currently experimenting with, and we expect that biodegradable materials will be able to compete with asphalt and concrete.”
1. What can we learn about the path?| A．It uses some asphalt. | B．It aims to protect trees. |
| C．It is a pioneering project. | D．It is being built by a sawmill. |
| A．Its material is heavy in weight. | B．It can stay in service for long. |
| C．Its length may break a record. | D．It is environmentally friendly. |
| A．Their production process is complex. | B．They are not as hard as asphalt. |
| C．They are not always available. | D．Their costs are relatively high. |
| A．A diary. | B．A novel. | C．A magazine. | D．A guidebook. |
So far, construction work for the high-speed railway line linking Beijing and Zhangjiakou
The new line,
Zhangjiakou,
The trains will start and stop at stations automatically（自动地）to a precise timetable, and change speed
Large storage
| A．Nine. | B．Thirteen. | C．Seventeen. |
4 . Train Floating On Air
A train that floats on air? It's not magic—it's magnets (磁). And it's close to reality. In Virginia USA the fall of 2002, a train with no wheels traveled on air and carried college students across their campus. In Japan, a whisper-quiet railway engine hovered and raced at 350 miles per hour using magnets and electricity as the power. And in China, a magnet train line linked Shanghai with nearby Pudong Airport.
These trains use magnetic levitation (悬浮) technology, “maglev” for short. They use the same rules as the magnets you pick up at home or school: opposite poles of magnets attract each other, and like poles repel each other.
How does it work?
Powerful magnets on the bottom of the train repel magnets on the track, which is actually just a magnet-filled guiding way. With a magnetic field of sufficient force, the train will go hovering on air, which seemed impossible to us in the past.
When an electrical current is sent through the track, the train moves. Turn the current backwards and the train slows down.
Maglev doesn't rely on the friction (摩擦力) of wheels on track, so it can climb a much steeper hill than a traditional train. And it can travel easily in snow and ice, something that could bring normal trains to a screaming stop.
1. This passage is about ________.| A．maglev | B．magnets | C．levitation | D．electricity |
| A． | B． | C． | D． |
| A．A magnet filled guiding way is formed inside a maglev train. |
| B．Instead of electricity magnets are used as the power of n maglev. |
| C．Maglev trains can climb hills with the help of magnet wheels. |
| D．Electric currents decide the movements of a maglev train. |
| A．A maglev train can climb mountains without power while an ordinary one can't. |
| B．A maglev train can travel in college campus while an ordinary train is not allowed. |
| C．Travelling without a track, a maglev train is safer and smoother than an ordinary one. |
| D．Floating on a track, a maglev train is faster, quieter than an ordinary railway train. |
| A．Confident. | B．Relaxed. | C．Anxious. |
Beijing Daxing International Airport, also known
Many visitors came just to look at the airport's striking architecture;
Beijing Daxing International Airport
1. What are the speakers talking about?
| A．The traffic rules. | B．The traffic jams. | C．The traffic conditions. |
| A．Thailand. | B．The US. | C．The UK. |
| A．The speed. | B．The license. | C．The state. |
| A．At an airport. | B．At a bus stop. | C．At a train station |
The bicycle is
There are many advantages of riding a bicycle. Firstly, compared with cars
10 . A fully electric seaplane has made its first flight over the mouth of the Fraser River near Vancouver, Canada. The flight represents a milestone in the long process of reducing the aviation industry’s emissions and costs by electrifying short-to-medium distance commercial flying.
Several hundred people crowded the river bank on Tuesday morning to witness what they hoped would be a historic moment. They were not disappointed. Among cheers, the battery-powered Harbour Air seaplane lifted off into the sky. The plane flew a short round-trip downriver before landing five minutes later.
“It was magical. It was much quieter than I had expected it to be,” said Nicki Malcom, one witness from Auburn, Washington. “It’s definitely the future,” said Chip Jamison, who came from Portland to see the electric plane he produced parts for. “You can see it with automobiles. Planes are next. It's right in front of us.”
The test pilot was the only person on board the six-passenger DHC-2 de Havilland Beaver. He was the CEO and founder of Habour Air, Greg McDougall. McDougall’s seaplane airline teamed up with a Redmond, Washington-based electric motor maker named Magnix to transform the classic de Havilland Beaver plane. Magnix CEO Roei Ganzarski sees the seaplane's first flight as a milestone, similar to the first jet takeoff.
“Today you witnessed the first shot of the electric aviation revolution,” Ganzarski told the two companies' staff, contractors, media and other celebrators. “Let’s start the revolution.” Ganzarski laid out a case for how battery-powered flight offers lower noise, zero pollution and could reduce fuel and maintenance costs. “Lower operating costs for airlines like Harbour Air will mean lower ticket prices for all of you,” he said. “Lower operating costs mean they can now fly to more destinations that we couldn’t fly to before.”
It will be some time before regular folks can book a ticket on a clean, electric seaplane.
1. According to the passage, the Harbour Air seaplane________.| A．is adapted from the de Havilland Beaver | B．will replace the automobile in the near future |
| C．can carry more than six passengers | D．has investment from the Vancouver government |
| A．Critical. | B．Objective. | C．Optimistic. | D．Ambiguous. |
| A．Electric seaplanes only help cut down air pollution and costs. |
| B．People can fly to more destinations in less time on battery-powered planes. |
| C．The seaplane’s first flight symbolizes the success of the electric aviation revolution. |
| D．People may get cheaper tickets by taking electric seaplanes. |
| A．It is the most effective way to cut down air pollution. |
| B．It promises huge profits for airlines due to lower operating costs. |
| C．It employs more advanced technology compared to automobiles. |
| D．It triggers the electric aviation revolution with regard to low emissions and costs. |
