10.The Netherlands on Monday introduced its first-ever"intelligent bicycle,fitted with electronic devices to help bring clown the high accident rate among elderly cyclists in the bicycle-mad country.
Developed for the government by the Netherlands Organization for Applied Scientific Research (TNO),the intelligent bicycle,runs on electricity.A commercial-available bicycle is expected to be on the market in the next two years and should sell for between 1,700 to 3,200 euros per bicycle.
The devices on the bike are linked through an onboard computer with a vibrating (震动的) warning system fitted in the bicycle's saddle and handlebars to warn cyclists of the coming danger.
The saddle vibrates when other cyclists approach from  behind,while,the handlebars do the same when barriers appear ahead.
"Accidents often happen when cyclists look behind them or get a fright when they are passed at high speed,"said Maurice Kwakkernaat,one of TNO's research scientists involved in the project."The onboard system technology has already been at work in the car industry,"he said.
''More and more elderly people are using a bicycle,not only for short distances,but also for longer distances,"Dutch Environment and Infrastructure Minister Melanie Schultz van Haegen told AFP."This type of bicycle is truly needed in the Netherlands because it will help us bring down the number of elderly people who are injured every year and allow them to continue to enjoy cycling,"she said.
In the Netherlands,bicycles outnumber the population of 17 million by at least one million and there are some 25,000 km of bicycle path in the country.Those statistics are set to grow as more and more people take to two-wheeled transport,leading to an increased risk of injury.
Last year,184 cyclists died in the country,of which 124,or 67%,were older than 65,according to the Central Statistics Office.The year before,200 cyclists died,the majority of victims also being elderly.
The current model weighs 25 kilograms but researchers are working on making the onboard systems smaller.
63.The intelligent bicycle is aimed toD.
A.protect the environment                 
B.help reduce traffic pressure
C.popularize the use of bicycles            
D.improve safety for elderly cyclists
64.Which part of the intelligent bicycle will vibrate when other cyclists approach it from behind?A
A.The saddle.                           
B.The wheels.
C.The handlebars.                       
D.The onboard computer.
65.We can learn from the passage thatD.
 A.the elderly ride bicycles wherever they go
 B.the elderly are planning to give up cycling
 C.the number of elderly cyclists is decreasing
 D.the accident rate among elderly cyclists is high
66.Which is the best title for the passage?C
 A.A Test Bicycle                         B.Elderly Cyclists
 C.A Smart Bicycle                        D.A Bicycle-mad Country.
6."Shark on the bait (诱饵)!"shouted Andre Harman,pointing to a spot a few yards behind the outboard motors. His voice gave no indication of panic,but the crew suddenly became tense and fixed their eyes on the water. Slowly,smoothly,Andre drew in the bait.The shark followed. No one asked what kind of shark it was. Everything about it,from its color to its shape,tells that it was a great white shark.
Andre lifted the bait aboard. Placing himself between the two motors,he dropped his right hand into the water just as the great head reached the first motor."My goodness Andre!"I said. His hand seized the big nose,moving it away from the tube of the motor,guiding the shark's head up as it rose out of the water. Andre's hand held the nose,touching it gently. No one spoke. No one breathed. The moment seemed endless. In fact,it lasted less than five seconds before Andre pulled his hand back.
Still nobody spoke. Then Andre smiled and said:"The first time was an accident. I was just trying to move the shark away from the motor. Sharks are attracted to motors by their electrical signals and have a habit of biting them to see if they are eatable."Andre has worked with great white sharks for years."My hand landed on its nose,and it sort of paused,so I kept it there,and when I did let go,the shark bit and bit as if it was searching for whatever it was that had attracted it."
Nearly every encounter (遭遇) we had had with the great whites had been totally illogical. The more we learned,the more we realized how little was really known about them in the past years. Back then,it was generally accepted that great whites ate people by choice. Now we know that almost every attack on a human is an accident in which the shark mistakes a human for its normal food. Back then,we thought that once a great white smelt blood,it would lead to death. Now we know that nearly three-quarters of bite victims survive,perhaps because the shark recognizes that is has made a mistake and doesn't return for a second bite.

60.The author said,"My goodness!Andre!"whenB.
A.Andre was about to fall into the water
B.Andre was about to touch the shark
C.Andre was followed by the shark
D.Andre was bitten by the shark
61.What does the author think of the encounters with great whites?B
A. Exciting. B. Educational. C. Frightening  D. Reasonable
62. Most bite victims survive in shark attacks becauseD.
A. they are taught how to fight off sharks
B. sharks discover they are no threats
C. they manage to swim to safety
D. sharks stop attacking them.
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