题目内容

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.

分析 本文是一篇科普文,主要介绍了一种新型的适合老年人骑行的智能自行车.这种智能自行车配有电子设备,以帮助减少老年人在骑车时的事故发生率,提高老年人骑车的安全性.

解答 63.D 细节理解题.根据文章第一句"The Netherlands on Monday introduced its first-ever intelligent bicycle,fitted with electronic devices to help bring down the high accident rate among elderly cyclists in the bicycle-mad country."可知,这种智能自行车的目的是提高年齡较大的骑行者骑车的安全性.故选D.
64.A 细节理解题.根据文章第四段的"The saddle vibrates when other cyclists approach from behind,可知,当其他骑自行车的人从后面接近智能自行车时,车座会产生一种振动,故选A.
65.D 推理判断题.根据文章倒数第二段的"Last year,184 cyclists died in the country,of which 124,or 67%,were older than 65,according to the Central Statistics Office."可知,老年人骑自行车发生事故的比率较高,故选D.
66.C主旨大意题.通读全文可知,文章主要介绍了一种新型的适合老年人骑行的智能自行车.故选C.

点评 本文是新闻报道类阅读,考查学生的细节理解和推理判断能力.做细节理解题时一定要找到文章中的原句,和题干进行比较,再做出正确选择.在做推理判断题时不要以个人的主观想象代替文章的事实,要根据文章事实进行合乎逻辑的推理判断.

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First consider something as simple as sleep.Its position presents its ownchallenges.The main question is whether you want your arms inside or outside the sleeping bag.If you leave your arms out,they float free in zero gravity,often giving a sleeping astronaut the look of a funny ballet (芭蕾) dancer."I'm an inside guy,"Mike Hopkins says,who returned from a six-month tour on the International Space Station."I like to be wrapped up."
On the station,the ordinary becomes strange.The exercise bike for the American astronaut has no handlebars.It also has no sear.With no gravity,it's just as easy to pedal violently.You can watch a movie while you pedal by floating a microcomputer anywhere you want.Without gravity to help circulate air,the carbon dioxide you exhale(呼气)has a tendency to form an invisible(隐形的)cloud around your head.You can end up with whatastronauts call a carbon-dioxide headache.
Leroy Chiao,54,an American retiredastronaut after four flights,describes what happens even before you float out of your seat."Your inner ear thinks you're falling.Meanwhile your eyes are telling you you're standing straight.That can be annoying-that's why some people feel sick."Within a couple of days-truly terrible days for some-astronauts'brains learn to ignore the panicky signals from the inner ear,and space sickness disappears.
Space travel can be so delightful but at the same time invisibly dangerous.For instance,astronauts lose bone mass.That's why exercise is considered so vital that National Aeronautics and Space Administration(NASA) puts in right on the workdayschedule.The focus on fitness is as much about science and the future as it is about keeping any individualastronaut healthy.NASA is worried about two things:recovery time once astronauts return home,and,more importantly,how to maintainstrength and fitness for the two and a half years or more that it would take to make a round-trip to Mars.

63.What is the major challenge to astronauts when they sleep in space?A
A.Deciding on a proper sleep position.
B.Choosing a comfortable sleeping bag.
C.Seeking a way to fall asleep quickly.
D.Finding a right time to go to sleep.
64.The astronauts will suffer from a carbon-dioxide headache whenC?
A.they circle around on their bikes
B.they use microcomputers without a stop
C.Theyexercise in one place for a long time
D.they watch a movie while pedaling
65.Some astronauts feel sick on the station during the first few days becauseD?
A.their senses stop working
B.they have to stand up straight
C.they float out of their seats unexpectedly
D.their brains receive contradictory messages
66.One of NASA's major concerns about astronauts isB.
A.how much exercise they do on the station
B.how they can remain healthy for long in space
C.whether they can recover after returning home
D.whether they are able to go back to the station.
18.Recordings of angry bees are enough to send big,tough African elephants running away,a new study says.Beehives (蜂窝)-either recorded or real-may even prevent elephants from damaging farmer's crops.
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Lucy found a wild beehive inside a tree in northern Kenya and set up a recorder.Then she threw a stone into the beehive,which burst into life.Lucy and her assistant hid in their car until the angry bees had calmed down.Next,Lucy searched out elephant families in Samburu National Reserve in northern Kenya and put a speaker in a close to each family.
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Lucy is now studying whether the elephants will continue to avoid the sound of angry bees after hearing it several times.She hasn't tested enough groups yet to know,but her initial (最初的) results were promising enough to begin trials with farmers.She has now begun placing speakers in the fields to see if elephants are frightened away.

60.We know from the passage that elephants may he frightened ofD.
A.loud noises    B.some crops
C.video cameras   D.angry bees
61.As mentioned in the passage,LucyB
A.works by herself in Africa
B.needs to test more elephant groups
C.has stopped elephants eating crops
D.has got farmers to set up beehives on their farms
62.Why did Lucy throw a stone into a wild beehive?A
A.To record the sound of bees.
B.To make a video of elephants.
C.To see if elephants would run away.
D.To find out more about the behavior of bees.
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A.Young elephants ignore African honeybees.
B.Waterfalls can make elephants stay in one place.
C.Elephants do not go near trees with bees living in them.
D.Farmers do not allow Lucy to conduct tests in their fields.
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However,several types of animals can walk on water.One of the most interesting is the common basilisk Basilicus basilicus,a lizard (蜥蜴) native to Central and South America.It can run across water for a distance of several meters,avoiding getting wet by rapidly hitting the water's surface with its feet.The lizard will take as many as 20steps per second to keep moving forward.For humans to do this,we'd need huge feet that we could bring up to our ears in order to create
adequate"hitting."
But fortunately there is an alternative:cornflour.By adding enough of this common thickening agent to water (and it does take a lot),you can create a"non-Newtonian"liquid that doesn't behave like normal water.Now,if the surface of the water is hit hard enough,particles(微粒) in the water group together for a moment to make the surface hard.Move quickly enough and put enough force into each step,and you really can walk across the surface of an adequately thick liquid of cornflour.
Fun though all this may sound,it's still rather messy md better mad about in theory than carried out in practice,if you must do it,then keep the water wings handy in case you start to sink--and take a shower afterward!
44.Walking on water hasn't become a reality mainly because humansB
A.are not interested in it
B.have biological limitations
C.have not invented proper tools
D.are afraid to make an attempt
45.What do we know about Basiilius basilicus from the passage?C
A.It is light enough to walk on water.
B.Its huge feet enable it to stay above water.
C.It can run  across water at a certain speed.
D.Its unique skin keeps it from getting wet in watch
46,What is the function of the cornflour according to the passage?A
A.To create a thick liquid.
B.To turn the water into solid.
C.To help the liquid behave normally.
D.To enable the water to rove rapidly.
47.What is the author's attitude toward the idea of humans'walking on water?D
A,It is risky but beneficial.
Il.It is interesting and worth trying.
C.It is crazy md cannot become a reality.
D.It is impractical thigh theoretically possible.

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