There are two methods by which hydrogen (氫) can be used to power cars. The first way is to use hydrogen to drive the engine, in much the same way as many cars use gas. The second method is to use the reaction of hydrogen with oxygen in a battery, making the car a kind of electric one.
The dream of producing hydrogen in the car while driving along by electrolyzing（電解）water is a long way off, so we are still at the period of batteries and filling the tank with hydrogen gas. This is the difficulty for potential car users and producers. There are only sixteen hydrogen filling stations in Los Angeles and none in 99% of other cities worldwide.
Indeed, some of the big name automobile producers have pulled out of the race to put the first practical hydrogen car on the streets. Ford and GM have announced that they are pulling out in America and so has Renault in France.
However, the Japanese companies are pressing on. In fact, Honda introduced its first hydrogen fuel cell car in 1999. They are now producing second generation hydrogen car known as the FCX Clarity. Guess where they are available for sale? In only one city because of its filling stations.
Honda thinks that they could go into full-scale production of the FCX Clarity by 2020 if the world is prepared for them by then.
Then there are hydrogen-powered buses in several European cities including Amsterdam, Barcelona, Hamburg, London, Luxembourg and Madrid. Lotus, the makers of London taxis, have announced that they propose to manufacture hydrogen-powered taxis in time for the London Olympics.
So, the hydrogen vehicle is out there and the numbers will be growing fairly soon. The buses go back to their bus station, where an electrolyzing machine changes water into fuel for them to fill up on and the same will be the case for many of London’s taxis.
Unfortunately, getting fuel is not the only difficulty for the average motorist, a number of these vehicles cost about $300,000 each.
小題1:According to the text, hydrogen-powered buses ________.
A．can easily be filled up with gas.
B．a(chǎn)re likely to sell well in the future.
C．a(chǎn)re mainly used in the United States
D．won’t be used in the London Olympics
小題2:What does the underlined word “them” in paragraph 5 refer to?
A．Japanese companiesB．Hydrogen buses
C．The FCX ClarityD．Filling stations
小題3:Where are hydrogen cars currently available for sale?
A．In BarcelonaB．In HamburgC．In LondonD．In Los Angeles
小題4:We can learn from the text that ________.
A．there are sixty hydrogen filling stations all over the world
B．hydrogen vehicles fueled by water will be very expensive
C．Honda will mass-produce the FCX Clarity by 2012
D．Honda produced its first hydrogen car in 1989

小題1:B
小題2:C
小題3:D
小題4:B
文章介紹了新型的使用清潔能源氫氣的汽車，
小題1:細(xì)節(jié)題。根據(jù)倒數(shù)第二段第一行So, the hydrogen vehicle is out there and the numbers will be growing fairly soon.
小題2:推理題。根據(jù)they could go into full-scale production of the FCX Clarity by 2020 if the world is prepared for them by then可知they就是指上文提及的the FCX Clarity，故C正確。
小題3:推理題。這四個(gè)選項(xiàng)中只有洛杉磯有加氣站，根據(jù)文章第二段第四行There are only sixteen hydrogen filling stations in Los Angeles。
小題4:細(xì)節(jié)題。根據(jù)文章最后一句a number of these vehicles cost about $300,000 each.可知B正確。
練習(xí)冊(cè)系列答案
相關(guān)習(xí)題

科目：高中英語(yǔ) 來(lái)源：不詳 題型：完形填空


Seven loyal readers came to the Teens’ office two weeks ago. They had a wonderful day learning how to make a newspaper. But what   36  made them excited was that they had their say（發(fā)表意見(jiàn)）.
“What most impressed me was   37  I was saying something, I found all eyes were   38  me,” said Tang Shining, one of the students. Her friend, Li Chunbei agreed, and felt very glad that when she was talking, the editors nodded and even   39 notes.
Students were happy to see the editors listen to their   40 . You may often   41  about being neglected (忽略) by teachers and parents.   42  before complaining, please   43  that you have already spoken about your thoughts.
It’s common in China that teachers at school and parents were   44  the ones to tell teenagers what they should and shouldn’t do. The young are   45  to doing what they are told, rather than thinking by themselves. But then their ideas would be locked in their brains and not be    46 .
A girl wrote to Teens about her family   47 . She used to be very sad because her father seldom talked and played with her. After years of consideration, she   48  decided to write her father a letter, telling him about her sadness. To her   49 , the father   50 , saying that he didn’t realize his mistakes. From then on, he really  51 .
Sometimes, we need to let our   52  be heard, so others can understand our thoughts and feelings. Don’t be afraid of being   53  for what you have done. You know it is your   54  to speak your mind.   55   your ideas are denied (否定), at least you have tried your best. You will not be left with any regret.
小題1:
A．directlyB．really C．completelyD．immediately
小題2:
A．whenB．howC．whereD．what
小題3:
A．a(chǎn)tB．forC．inD．on
小題4:
A．readB．sawC．tookD．copied
小題5:
A．speechesB．opinionsC．songsD．a(chǎn)rticles
小題6:
A．complainB．talkC．writeD．speak
小題7:
A．And B．So C．Instead D．But
小題8:
A．make goodB．make ofC．make sureD．make up
小題9:
A．seldomB．never C．hardlyD．a(chǎn)lways
小題10:
A．reducedB．usedC．a(chǎn)dvised D．told
小題11:
A．remembered B．usedC．heardD．touched
小題12:
A．historyB．storyC．eventD．report
小題13:
A．sadlyB．suddenlyC．finally D．a(chǎn)ngrily
小題14:
A．sorrowB．disappointmentC．joy. D．surprise
小題15:
A．smiled.B．a(chǎn)pologizedC．laughed D．shouted
小題16:
A．changedB．exchangedC．talkedD．played
小題17:
A．decisionsB．voices C．suggestions D．secrets
小題18:
A．blamed(責(zé)備)B．punishedC．beatenD．fined（罰款）
小題19:
A．dutyB．task（任務(wù)）C．pleasureD．right （權(quán)利）
小題20:
A．BecauseB．Even if C．Instead D．Not until

查看答案和解析>>

科目：高中英語(yǔ) 來(lái)源：不詳 題型：閱讀理解

Let children learn to judge their own. A child who learns to talk does not learn by being corrected all the time; if corrected too much, he will stop talking. He notices a thousand times a day the difference between the language he uses and the language those around him use. Little by little, he makes the necessary changes to make his language like other people’s, in the same way, children learn to do all the other things without being taught—to walk, run, climb, ride a bicycle—compare their own performances with those of more skilled people, and slowly make the needed changes. But in school we never give a child a chance to find out his mistakes if we thought that he would never notice a mistake unless it was pointed out to him, or correct it unless he was made to. Let him work out, with the help of other children if he wants it, what this word says, what the answer is to that problem, whether this is a good way of saying or doing this or not. If it is a matter of right answers, as it may be in mathematics or science, give him the answer book. Let him correct his own papers. Why should we teachers waste time in doing such work? Our job should be to help the child when he tells us that he can’t find the way to get their own understanding, how to know what they know or do not know.   
小題1:According to the passage, the best way for children to learn things is ___  
A．to listen to skilled people’s advice
B．to ask older people many questions
C．to make mistakes and have them corrected
D．to do what other people do
小題2:According to the writer, teachers in school should ___
A．a(chǎn)llow children to learn from each other
B．point out children’s mistakes whenever they are found
C．correct children’s mistakes as possible as they can
D．give children more book knowledge
小題3:Which of the following does the writer think teachers should not do?
A．Give children correct answers
B．a(chǎn)llow children to make mistakes
C．Point out children’s mistakes
D．Let children judge their own work
小題4:The passage suggests that learning to speak and learning to ride a bicycle are ___.
A．different from learning other skills
B．the same as learning other skills
C．more important than other skills
D．not really important skills

查看答案和解析>>

科目：高中英語(yǔ) 來(lái)源：不詳 題型：閱讀理解

“If you talk to the plants, they will grow faster and the effect is even better if you’re a woman.” Researchers at Royal Horticultural Society carried out an experient to find that the voice of a woman gardener makes plants grow faster.
The experiment lasted a month and by the end of the study scientists managed to discover that tomato plants grew up two inches taller when women gardeners talked to them instead of male.
Sarah Darwin was the one making the plants registered the best growth. Her voice was the most “inspiring” for plants than those of nine other gardeners when reading a passage from The Origin of Species. The great-great-granddaughter of the famous botanist(植物學(xué)家) Charles Darwin found that her plant grew about two inches taller than the plant of the best male gardener.
Colin Crosbie, Garden Superintendent at RHS, said that the finding cannot yet be explained. He assumes that women have a greater range of pitch（音高） and tone（音調(diào)） which might have a certain effect on the sound waves that reach the plant. “Sound waves are an environmental effect just like rain or light ,”said Mr Grosbie.
The study began in April at RHS Garden Wisley in Survey. Scientists started with open auditions(聽(tīng)力) for the people who were asked to record passages from John Wyndham's The Day of the Triffids, Shakespeare’s A Midsummer's Night Dream and Darwin's The Origin of Species.
Afterwards researchers selected a number of different voices and played them to 10 tomato plants during a period of a month. Each plant had headphones（耳機(jī)） connected to it. Through the headphones the sound waves could hit the plants. It was discovered that plants that “l(fā)istened” to female voices on average grew taller by an inch in comparison to plants that heard male voices.
Miss Darwin said, “I think it is an honor to have a voice that can make tomatoes grow, and especially fitting because for a number of years I have been studying wild tomatoes from the Galapagos Island at the Natural History Museum in London.”
小題1:What does the passage talk about?
A．Plants enjoy men’s voices than women’s.
B．A botanical experiment in a museum.
C．Voice’s influence on plant growing.
D．Strange phenomenon（現(xiàn)象） at Royal Horticultural Society.
小題2:What does the underlined sentence in paragraph 4 mean?
A．Plants need sound as well as rain and light.
B．Sound is basic for the plant to grow.
C．Sound has a good effect as rain or light does.
D．Plants can’t live without sound, rain or light.
小題3:Sarah Darwin is most likely a (an)_____.
A．botanistB．gardenerC．a(chǎn)stronomerD．environmentalist
小題4:What can we learn from the passage?
A．The experiment ended in May.
B．Scientist can explain the findings clearly.
C．Plants enjoy listening to the passages from masterpieces.
D．The findings are of great importance to human beings.

查看答案和解析>>

科目：高中英語(yǔ) 來(lái)源：不詳 題型：閱讀理解

Due to the increasing number of violence acts produced in schools all over the world，more and more parents prefer to have their children educated at home rather than at school. This way they can assure their safety and well-being，although teachers and school representatives are trying to improve the situation in schools by increasing the number of the persons in charge with the safety of the students．
The main reason for violence acts are the films and cartoons that fill the children’s time．They want to do everything．they watch on TV and never think at the consequences，and they may hurt a classmate or a teacher．
On the other hand, parents are not fully satisfied with the children’s results obtained in classes and they consider private classes would have better results．
When a teacher has to watch 30 students in class he can’t probably see what each of them is doing，how he is writing，or if he understands the explanations．At home the teacher can explain in details everything the child doesn’t understand as many times as he considers proper．
And many times．the child grows fond of the teacher at home，who becomes his best friend，and who helps him whenever he needs someone to talk to．    
However, the best solution would be a mixture between the education received at school and that at home，because school makes children communicate and socialize．Keeping a child at home for fear there might happen something bad to him．only makes the child’s character weak and prevents him from knowing what real life is．Staying in a crystal ball only does harm to the child．
All in all．schools have been created to help children，not to harm them，so it’s best to keep children in these special places，where they learn，laugh，have fun and make new friends．
小題1:The writer’s purpose in writing the text is to          ．
A．teach parents the ways to keep theft children safe
B．show solutions to developing children’s character
C．explain the main reason for violence acts in schools
D．a(chǎn)nalyze an education problem and give opinions
小題2:Parents prefer to have their children educated at home because the following EXCEPT that______.
A．More and more violence acts occur in schools
B．Parents want to improve their Children's grades
C．Parents are concerned about their children’s safety
D．The education system is far from satisfactory
小題3:What does“a crystal ball”in the passage refer to?
A．A toy that can be used for entertainment．
B．A safe and comfortable environment．
C．An object that is made of crystal．
D．A setback that is hard to overcome．
小題4:We call infer from the passage that          ．
A．violence TV programs have bad effects on children’s behavior
B．The teacher at home is more patient than the teacher at school
C．Children today are weak from lack of sense of right and wrong
D．There are too many students in class for a teacher to teach
小題5:Which of the following might be the best title of the passage?
A．Advantages and Disadvantages of Private Classes
B．Who is to Blame, Parents or Schools?
C．Which is Better, School Study or Home Study
D．The Relationship between Teachers and Children

查看答案和解析>>

科目：高中英語(yǔ) 來(lái)源：不詳 題型：閱讀理解

Although April did not bring us the rains we all hoped for, and although the Central Valley doesn’t generally experience the sound and lightning that can go with those rains, it’s still important for parents to be able to answer the youthful questions about thunder and lightning.
The reason these two wonders of nature are so difficult for many adults to explain to children is that they are not very well understood by adults themselves. For example, did you know that the lightning we see flashing down to the earth from a cloud is actually flashing up to a cloud from the earth? Our eyes trick us into thinking we see a downward motion when it’s actually the other way around. But then, if we believed only what we think and we see, we’d still insist that the sun rises in the morning and sets at night.
Most lightning flashes take place inside a cloud, and only a relative few can be seen jumping between two clouds or between earth and a cloud. But, with about 2,000 thunderstorms taking place above the earth every minute of the day and night, there’s enough activity to produce about 100 lightning strikes on earth every second.
Parents can use thunder and lightning to help their children learn more about the world around them. When children understand that the light of the lightning flashing reaches their eyes almost at the same moment, but the sound of the thunder takes about 5 seconds to travel just one mile, they can begin to time the interval (間隔) between the flash and the crash to learn how lose they were to the actual spark (閃光).
小題1:According to the author, in the area of the Central Valley____.
A．rains usually come without thunder and lightning.
B．it is usually dry in April
C．children pay no attention to the two natural wonders.
D．parents are not interested in thunder and lightning.
小題2:We believe that lightning is a downward motion because_______.
A．we were taught so by our parents from our childhood.
B．we are taken in by our sense of vision.
C．it is a common natural sight.
D．it is a truth proved by science.
小題3:What is TRUE about lightning according to the passage?
A．Only a small number of lightning flashes occur on earth.
B．Lightning flashes usually jump from one cloud to another.
C．Lightning travels 5 times faster than thunder.
D．There are far more lightning strikes occurring on earth than we can imagine.
小題4:The underlined word “activity”  is most closely related to the word (s) _____.
A．cloudB．lightning strikesC．lightning flashesD．thunderstorms
小題5:It can be concluded from the passage that _______.
A．we should not believe what we see or hear.
B．things moving downward are more noticeable.
C．people sometimes may have wrong ideas about ordinary phenomena.
D．a(chǎn)dults are not as good as children in observing certain natural phenomena.

查看答案和解析>>

科目：高中英語(yǔ) 來(lái)源：不詳 題型：閱讀理解

BERLIN — With the crisis in Japan raising fears about nuclear power, Germany and Switzerland said on Monday that they would reassess the safety of their own reactors.
Doris Leuthard, the Swiss energy minister, said Switzerland would put off plans to build nuclear plants. She said no new ones would be permitted until experts had reviewed safety standards.
Germany will put off “the recently decided extension of the running time of German nuclear plants,” Chancellor Angela Merkel told reporters. “This moratorium（延緩）will run for three months and it will allow for a thorough examination of the safety standards of the county’s 17 nuclear power plants.
The European Union called for a meeting on Tuesday of nuclear safety authorities to assess Europe’s preparedness.
Germany’s foreign minister, Guido Westerwelle, called for a new risk analysis of the country’s nuclear plants, particularly regarding their cooling systems. He is the leader of the Free Democratic Party, which strongly supports nuclear power.
A previous government, led by the Social Democrats, passed a law in 2001 to close all the country’s nuclear plants by 2021. But Mrs. Merkel’s government changed that decision last year to extend the lives of the plants by an average of 12 years.
In Switzerland, Doris Leuthard said she had already asked to analyze the exact cause of the problems in Japan and draw up new or tougher safety standards “particularly in terms of seismic(地震的) safety and cooling.”
In Russia, the Prime Minister said his government would “draw conclusions from what’s going on in Japan.”
小題1:Where can you most likely read this passage?
A．In a newspaper.B．In a magazine.
C．In a science report. D．In a diary.
小題2:How will Germany react to Japan’s nuclear crisis?
A．Germany will close all the country’s nuclear plants.
B．Germany will hold a meeting of nuclear safety authorities.
C．Germany will change the decision made last year.
D．Germany will delay the extension of nuclear plants running time.
小題3:The author mentions all the following EXCEPT ______.
A．The moratorium in Germany will give time to examine the nuclear plants safety standards.
B．Switzerland will not build new nuclear plants unless they meet the experts’ safety standards.
C．The Social Democrats in Germany shares the same view with the Free Democratic Party.
D．Russia will try to learn something from the nuclear power crisis in Japan.
小題4:What is the best title of the passage?
A．Watch Out for the Danger of Nuclear Power
B．Europe Is against Building Nuclear Plants
C．Nuclear Plants in Europe Are Delayed
D．Opinions on Nuclear Power Are Opposite.

查看答案和解析>>

科目：高中英語(yǔ) 來(lái)源：不詳 題型：閱讀理解

Smart phones that react to your moods and televisions that can tell it’s you who’s watching are in your future as Intel Corporation’s top technology expert sets his sights on context-aware computing.
Chief technology officer Justin Rattner showed how personal devices will one day offer advice. “How can we change the relationship so we think of these devices not as devices but as assistants or even companions?” he asked.
Handheld devices could combine already common geographic location technology with data from microphones, cameras, heart and body monitors and even brain scans to offer their owners advice that today only a friend or relative could give.
“Imagine a device that uses a variety of sensors to determine what you are doing at an instant, from being asleep in your bed to being out for a run with a friend, ” Rattner said, “Future devices will constantly learn about who you are, how you live, work and play.’’
Rattner also demonstrated a television remote control that figures out who is holding it based on how it is held, and then learns the viewer’s entertainment preferences.
As the world leader for decades in microchips for servers and desktop computers, Intel is hurrying to catch up in the profitable market for smart phones like Apple’s iPhone and Research in Motion’s Blackberry.
Telephones with e-mail, global positioning and media players are pointing the way to a future where ever more functions are packed into ever smaller mobile devices.
The smart phone industry, including technology giants like LG and Samsung, is likely to sell 270 million phones this year and grow 25 percent in 2011, according to market research company IDC.
“I think you can expect to see features that support context-aware computing starting to appear in Intel products in the near future,” Rattner said.
But analysts say Intel faces an uphill battle getting its microchips into new phones as Nvidia, Marvell and Qualcomm have already made headway with cheap, lower-power processors based on designs by ARM Holdings.
Rattner recognized that questions about privacy and people’s willingness to be intimate with their computers will have to be settled before the future generation of smart phones he described takes off.
“If you think identity threat is a problem today, imagine when your whole context is readily available on the Net.”, he said.
小題1:The future smart phones can do all of the following except _______.
A．giving responses to the moods of the owners
B．giving proposals like assistants or companions
C．offering advice to their owners’ friends or relatives
D．telling the phone holders or carriers where they are
小題2:Which of the following are smart phones according to the passage?
A．iPhone and BlackberryB．LG and Samsung
C．Marvell and QualcommD．Nvidia and ARM Holdings
小題3:From the passage we can infer that _______.
A．Intel Corporation has become the world leader in the smar tphone market
B．Intel Corporation has fallen behind in the profitable market for smart phones
C．more functions packed into mobile phones will make mobile devices larger
D．the smart phone industry is likely to grow 25 percent in the year of 2011
小題4:The best title for the passage is likely to be _______.
A．Smart phones and TelevisionsB．Context-aware Computing
C．Personalized TelevisionsD．Personalized Smart phones

查看答案和解析>>

科目：高中英語(yǔ) 來(lái)源：不詳 題型：閱讀理解

Why texting harms your IQ
The regular use of text messages and e-mails can lower the IQ more than twice as much as smoking marijuana (大麻). That is the statement of researchers who have found that tapping away on a mobile phone or computer keypad or checking for electronic messages temporarily knocks up to 10 points off the user’s IQ. This rate of decline in intelligence compares unfavorably with the four-point drop in IQ associated with smoking marijuana, according to British researchers, who have described the phenomenon of improved stupidity as “infomania”. The research conducted by Hewlett Packard, the technology company, has concluded that it is mainly a problem for adult workers, especially men.
It is concluded that too much use of modern technology can damage a person’s mind. It can cause a constant distraction of “always on” technology when employees should be concentrating on what they are paid to do. Infomania means that they lose concentration as their minds remain fixed in an almost permanent state of readiness to react to technology instead of focusing on the task in hand. The report also added that, in a long term, the brain will be considerably shaped by what we do to it and by the experience of daily life. At a microcellular level, the complex networks of nerve cells that make up parts of the brain actually change in response to certain experiences.
Too much use of modern technology can be damaging not only to a person’s mind, but to their social relationship. 1100 adults were interviewed during the research. More than 62 per cent of them admitted that they were addicted to checking their e-mails and text messages so often that they scrutinized work-related ones even when at home or on holiday. Half said that they always responded immediately to an email and will even interrupt a meeting to do so. It is concluded that infomania is increasing stress and anxiety and affecting one’s characteristics. Nine out of ten thought that colleagues who answered e-mails or messages during a face-to-face meeting were extremely rude.
The effects on IQ were studied by Dr Glenn Wilson, a psychologist at University of London. “This is a very real and widespread phenomenon,” he said. “We have found that infomania will damage a worker’s performance by reducing their mental sharpness and changing their social life. Companies should encourage a more balanced and appropriate way of working.”
小題1:We can learn from the passage that “infomania” ______.
A．has a positive influence on one’s IQ
B．results in the change of part of the brain
C．lies in the problem of lack of concentration
D．is caused by too much use of modern technology
小題2:The research mentioned in the passage is most probably about ______.
A．the important function of advanced technology
B．the damage to one’s brain done by unhealthy habits
C．the relevance between IQ and use of modern technology
D．the relationship between intelligence and working effectiveness
小題3:The underlined word “scrutinized” probably means “______”.
A．examined carefullyB．copied patiently
C．corrected quicklyD．a(chǎn)dmitted freely
小題4:Which of the following shows the structure of the passage?
A．
B．
C．
D．
CP: Central Point   P: Point   Sp: Sub-point (次要點(diǎn))   C: Conclusion

查看答案和解析>>

同步練習(xí)冊(cè)答案