题目内容
1.2 million road deaths worldwide occur each year, plus a further 50 million injuries. To reduce car crash rate, much research now is focused on safety and new fuels一though some electric vehicle and biofuel research aims at going faster.
Traveling at speed has always been risky. One cutting edge area of research in motoring safety is the use of digital in-car assistants. They can ensure you don't miss key road signs or fall asleep. The use of artificial intelligence software allows these assistants to monitor your driving and makes sure your phone or radio doesn't distract you at a vital moment. Most crashes result from human and not mechanical faults.
Some safety developments aim to improve your vision. Radar can spot obstacles in fog, while other technology "sees through" high-sided vehicles blocking your view.
And improvements to seat belts, pedal controls and tyres are making driving smoother and safer. The color of a car has been found to be linked with safety, as have, less surprisingly, size and shape.
And alternatives to fossil-fuel based petrol, such as plant oils, are a hot area of research. Fuel cells based on hydrogen burn cleanly, and are the subject of a serious research effort.
But whatever is in the fuel tank,you don't want a thief in the driving seat and there have been many innovations(革新),some using satellite tracking and remote communications, to fight against car theft. These communication systems can also come into play if you crash, automatically calling for help.
Accidents cause many traffic jams, but there are slighter interplays(相互作用)between vehicles that can cause jams even on a clear but busy road, such jams can be analyzed using statistical tools. Robotic drivers could be programmed to make traffic flow smoothly and will perhaps one day be everyone's personal tool, but their latest efforts suggest that won't be soon.
64.What can we infer from paragraph One?
A. Fully automatic cars will reduce car crash rate.
B .Safety research has been paid much attention to.
C. Faster electric vehicles should be produced more.
D. Road accidents increase to a shocking rate in China.
65. What has been researched to improve the safety of a car according to the passage?
A. Some developments in seat belts, pedal controls and tyres.
B .A digital camera that can help drivers to see obstacles in fog.
C .Satellite tracking that can help drivers to improve their vision.
D. Artificial intelligence that help drivers to see through big vehicles.
66. What is the most important purpose of innovations that use satellite tracking and remote communications?
A. To call for help when one's car crashes.
B .To track the car down when it is being stolen.
C .To prevent car thieves from getting into your car.
D. To call for help when the car gets jammed in the traffic.
67. What is the passage mainly about?
A. The improvements inside cars help to protect drivers.
B.The use of artificial intelligence can reduce car crash rate
C. The serious fact of road accidents needs the concern of everyone.
D .Different technology has been researched to avoid car troubles.
CDBA

Compared with 2 million tons last year, our coal output has increased _____
three times; that is to say, our coal output has increased_____8 million tons
this year.
A.to; to |
B.to; by |
C.by; by |
D.by; to |
A new study warns that about thirty percent of the world’s people may not have enough water by the year 2025.
An American organization called Population Action International did the new study. It was more than three hundred and thirty-five million people lack enough water now. The people live in twenty-eight countries. Most of the countries are in Africa or in the Middle East.
Population Action International researcher Robert Engelman says by the year 2025, about three thousand million people lack water. At least 18 more countries are expected to have serious water problems. The demand for water keeps increasing. Yet the amount of water on the earth the same. Mr Engelman says the population in countries that lack water is growing in these countries will continue to increase.
The report says lack of water in the future may result several problems. It may increase health problems. Lack of water often means drinking water is not safe. Mr Engelman says there are problems all over the world because of diseases such as cholera that are carried in water.
Lack of water also may result in more international conflict. Countries may have to fight for water in the future. Some countries, such as Syria, Sudan, Cambodia, and so on, now get sixty percent of their fresh water from other countries. And the report says lack of water would affect the ability to improve their economies. This is because industries often need a large amount of water.
The Population Action International study gives several ways to solve the water problem. One way is to find ways to use water for more than one purpose. Another way is to teach people to be careful not to waste water. A third is to use less water for agriculture. The report also says long-term solutions to the water problem must include controls on population growth.
1.According to the report, how many countries will lack water by the year 2025?
A.More than eighteen |
B.About twenty-eight |
C.Less than forty |
D.At least forty-six |
2.____ million will lack water by the year 2025?
A.335 |
B.3,000 |
C.3,305 |
D.355 |
3.Which of the following is NOT true according to the passage?
A.The amount of the water on earth will always stay the same. |
B.The report gives three solutions to water problem. |
C.M ost of the countries that lack water belong to the developing ones. |
D.There’s only one long-term solution to solve the water problem, that is we must try our best to control the population growth. |
4.The passage mainly tells us that_____.
A.water is very important for any people |
B.PAI did a lot of study about water shortage |
C.water shortage will be a serious problem facing us in the near future |
D.controlling the population is the best way to solve the problem of water shortage |