More than 1.5 billion people around the world live without electricity. Finding better ways to bring light to the poor is the goal of researchers like Professor Irvine. In the late 1990s, he was working in Nepal when his return flight was canceled. A delay gave him time to take a fourteen-day hiking trip in the Himalayas.
One day he looked in the window of a school and noticed how dark it was. This is a common problem for millions of children around the world. Many families use kerosene oil (煤油) lamps. There are many problems with these lamps. They produce only a small amount of light. They are dangerous to breathe. And they are a big fire danger, causing many injuries and deaths each year. Kerosene costs less than other forms of lighting, but it is still costly in poor countries. Professor Irvine says many people spend over 100 dollars a year on the fuel.
When he returned to Canada, he began researching ways to provide safe and clean lighting. He began experimenting with light-emitting diodes (發(fā)光二極管), LEDs, at his lab. As a professor of renewable energy, he already knew about the technology. Light-emitting diodes are small glass lamps that use much less electricity than traditional bulbs (燈泡) and last much longer. He used a one-watt bright white LED made in Japan. He found it on the Internet and connected it to a bicycle-powered generator (發(fā)電機(jī)). He remembers thinking it was so bright that a child could read by the light of a single diode.
In 2000, after much research and many experiments, he returned to Nepal to put the systems into homes. Now the homes of 25,000 people in 51 countries have been equipped with it. “The one-time cost of our system which basically lives forever, as well as the solar panel — is less than one hundred dollars. So, one year of kerosene would pay for a solid-state lighting system,” he said. Now his aim is to develop a lower-cost lighting system. In January, Irvine is leaving the University of Calgary. He has also decided to start his own company in India.
小題1:We can learn from the second paragraph that kerosene oil lamps ______.
A.cost more than other forms of lighting
B.have damaged children’s eyesight
C.have wasted only a little fuel
D.have a lot of disadvantages
小題2:Irvine connected a white LED to a bicycle-powered generator to prove ______.
A.whether it can work without electricity
B.whether it can work well with less electricity
C.whether it can last longer than a generator
D.whether it is brighter than a traditional bulb
小題3:We can learn from the text that Irvine ______.
A.likes India rather than Nepal
B.is good at making new kinds of bulbs
C.is giving up his job in the university
D.is to earn much money from his company

小題1:D
小題1:B
小題1:C

小題1:D 第一題詢問煤油燈有關(guān)的信息,在第二段第四句話有提到There are many problems with these lamps,即它有許多缺點(diǎn),故選擇D
小題1:B 第二題考察科學(xué)家做發(fā)光二級(jí)管實(shí)驗(yàn)的目的,同樣在原文中有提到Light-emitting diodes are small glass lamps that use much less electricity than traditional bulbs,可推測得知他是想測試二極管在使用更少的電量時(shí)能否正常工作。
小題1:C 同樣在原文中有直接提到。最后一段倒數(shù)第二句話Irvine is leaving the University of Calgary,可知他辭去了在大學(xué)的工作,故選擇C
練習(xí)冊(cè)系列答案
相關(guān)習(xí)題

科目:高中英語 來源:不詳 題型:閱讀理解

Some fifty years ago , I was studying in a middle school in New York . One day , Mrs. O’Neil gave a maths test to our class . When the papers were marked , she found that twelve boys had made exactly the same mistakes in the test .
There is nothing new about cheating in exams . Perhaps that was why Mrs. O’Neil didn’t even say one word about it . She only asked the twelve boys to stay after class . I was one of the twelve .
Mrs. O’Neil asked no questions , and she didn’t scold us , either . Instead , she wrote the following words on the blackboard : On your way home you find some money and you’re completely sure that you will never be found out . Later someone comes to ask you if you have found some money he lost . What will you do ?
She then ordered us to write down the question , and asked us to take our whole lives to try to find out our own answer to it .
I don’t know about the other eleven children . Speaking for myself I can say : it was the most important single thing of my life. From then on , I have been asking this question to myself when I have to make a decision .
Because of this , Mrs . O’Neil has become the most unforgettable teacher for me in my whole life . I often think of this : if Mrs . O’Neil had scolded us as many other teachers often did , would I go on cheating every day ?
小題1:Who wrote this story ?
A.A student in New York who is not interested in maths .
B.Mrs. O’Neil from New York who found some money on her way home .
C.An old maths teacher in a middle school .
D.An old person who once lived in New York when he was young .
小題2:When did the story happen?
A.Over sixty years ago .B.Over fifty years ago .
C.Over seventy years ago .D.Over eighty years ago .
小題3:In the sentence “…she didn’t scold us either” , what does “scold” maybe mean ?
A.表揚(yáng)B.批評(píng)C.教育D.原諒
小題4:When Mrs. O’Neil found twelve boys made exactly the same mistakes in the test , she      .
A.became very , very angry and shouted at the children for an hour
B.thought maybe she made some mistakes in her teaching
C.tried to find out who made the mistakes first
D.wanted to teach the twelve boys to stop cheating
小題5:Why did the writer think Mrs. O’Neil unforgettable ?
A.Because Mrs. O’Neil often gave her student maths tests .
B.Because Mrs. O’Neil taught maths very well .
C.Because Mrs. O’Neil loved her students as she loved her own children .
D.Because Mrs. O’Neil taught a very important lesson to the writer .

查看答案和解析>>

科目:高中英語 來源:不詳 題型:完形填空

Two brothers worked together on a farm. One was married and had a large    41  .The other had no wife yet. Although they lived in different houses, they shared everything they got from their farm.
One day, the single brother said to himself, “It’s not    42   that we share all the rice. I’m   43   and I need less than my brother.” So, every night he took a bag of rice from his store-room and    44  across the field    45   their houses, putting it into his brother’s store-room.
At the same time, the married brother thought, “It’s not fair to share all the rice. I’m married and I have my wife and children to   46  me when I am   47 . However, my brother has no one to take care of his   48   .” So, each night he also took a bag of rice and put it into his brother’s store-room.
Several months passed by. They found    49  strange that their rice never became less. Then, one dark night the two brothers ran into each other. Slowly they began to understand what was happening. Their bags fell onto the ground and tears    50  their eyes at once.
小題1:
A.groupB.family C.classD.team
小題2:
A.rightB.popularC.interesting D.wrong
小題3:
A.poor B.happyC.a(chǎn)loneD.rich
小題4:
A.jumpedB.playedC.wentD.rode
小題5:
A.fromB.throughC.offD.between
小題6:
A.look afterB.look forC.look outD.look at
小題7:
A.worriedB.oldC.healthyD.dead
小題8:
A.hopeB.childrenC.farmD.future
小題9:
A.themB.this C.itD.that
小題10:
A.a(chǎn)ppearedB.filledC.dropped D.rose

查看答案和解析>>

科目:高中英語 來源:不詳 題型:閱讀理解

“As sure as you’re alive now, Peter Rabbit, some day I will catch you,” shouted Reddy Fox, as he put his black nose in the hole between the roots of the Big Hickory-tree which grows close to the Smiling Pool. “It is lucky for you that you were not one jump farther away from this hole.”
Peter, safe inside that hole, didn’t have a word to say, or, if he did, he didn’t have breath enough to say it. It was quite true that if he had been one jump farther from that hole, Reddy Fox would have caught him. As it was, the hairs on Peter’s funny white tail actually had tickled Reddy’s back as Peter ran wildly through the root-bound entrance to that hole. It had been the narrowest escape Peter had had for a long, long time. You see, Reddy Fox had surprised Peter eating sweet clover(苜蓿)on the bank of the Smiling Pond, and it had been a lucky thing for Peter that hole, dug long ago by Johnny Chuck’s grandfather, had been right where it was. Also, it was a lucky thing that old Mr. Chuck had been wise enough to make the entrance between the roots of that tree in such a way that it could not be dug any larger.
Reddy Fox was too shrewd(機(jī)靈的)to waste any time trying to dig it larger. He knew there wasn’t room enough for him to get between those roots. So, after trying to make Peter as uncomfortable as possible by telling him what he, Reddy, would do to him when he did catch him, Reddy walked across the Green Meadows. Peter remained where he was for a long time. When he was quite sure that it was safe to do so, he crawled out and hurried to the Old Orchard. He felt that that would be the safest place for him, because there were ever so many hiding places in the old stone wall along the edge of it.
小題1: Where is Peter Rabbit hiding?
A.On the bank of a pondB.In a hole
C.In a tall treeD.Behind a room
小題2:Which of the following statements is NOT TRUE according to the story?
A.Reddy Fox might find rabbit hairs on him.
B.Old Mr. Chuck took advantage of the roots to dig the hole.
C.The hole could be made larger.
D.Reddy almost caught Peter this time.
小題3: Why did Peter Rabbit wait so long before leaving?
A.Because Reddy was trying to get him.
B.Because it was cold outside.
C.Because his grandfather would help him dig a large hole.
D.Because the Old Orchard was not so safe as this hole.

查看答案和解析>>

科目:高中英語 來源:不詳 題型:閱讀理解

A few years ago I asked my children’s governess, Julia Vassilyevna, to come into my study.
“ Sit down, Julia Vassilyevna,” I said.“Let’s settle our accounts. Although you most likely need some money, you stand on ceremony and won’t ask for it yourself. Now then, we agree on thirty rubles a month…”
“ Forty.”
“ No, thirty. I made a note of it. I always pay the governess thirty. Now then, you’ve been here two months, so…”
“ Two months and five days.”
“ Exactly two months. I made a specific note of it. That means you have sixty rubles coming to you. Subtract nine Sundays… you know you didn’t work with Kolya on Sundays, you only took walks. And three holidays…”
Julia Vassilyevna flushed a deep red and picked at the flounce of her dress, but--- not a word.
“ Three holidays, therefore take off twelve rubles. Four days Kolya was sick and there were no lessons, as you were occupied only with Vanya. Three days you had a toothache and my wife gave you permission not to work after lunch. Twelve and seven---nineteen. Subtract…that leaves…h(huán)mm…forty-one rubles. Correct?”
Julia Vassilyena’s left eye reddened and filled with moisture. Her chin trembled; she coughed nervously and blew her nose, but---not a word.
“ Around New Year’s you broke a teacup and saucer: take off two rubles. The cup cost more, it was an heirloom, but---let it go. When didn’t I take a loss? Then, due to your neglect, Kolya climbed a tree and tore his jacket: take off ten. Also due to your heedlessness the maid stole Vanya’s shoes. You ought to watch everything! You get paid for it. So, that means five more rubles off. The tenth of January I gave you ten rubles…”
“ You didn’t ” whispered Julia Vassilyevna.
“ But I made a note of it.”
“ Well…all right.”
“ Take twenty-seven from forty-one ---that leaves fourteen.”
Both eyes filled with tears. Perspiration appeared on the thin, pretty little nose. Poor girl!
“ Only once was I given any money,” she said in a trembling voice, “ and that was by your wife. Three rubles, nothing more.”
“ Really? You see now, and I didn’t make a note of it! Take three from fourteen… leaves eleven. Here’s your money, my dear. Three , three, three, one and one. Here it is!”
I handed her eleven rubles. She took them and with trembling fingers stuffed them into her pocket.
“ Merci,” she whispered.
I jumped up and started pacing the room. I was overcome with anger.
“ For what, this ---‘merci’?” I asked.
“ For the money.”
“ But you know I’ve cheated you, God’s sake---robbed you! I have actually stolen from you! Why this ‘merci’?”
“ In my other places they didn’t give me anything at all.”
“ They didn’t give you anything? No wonder! I played a little joke on you, a cruel lesson, just to teach you … I’m going to give you the entire eighty rubles! Here they are in an envelope all ready for you… Is it really possible to be so spineless? Why don’t you protest? Why be silent? Is it possible in this world to be without teeth and claws--- to be such a nincompoop?”
She smiled crookedly and I read in her expression: “ It is possible.”
I asked her pardon for the cruel lesson and , to her great surprise, gave her the eighty rubles. She murmured her litter “merci” several times and went out. I looked after her and thought: “How easy it is to crush the weak in this world!”
小題1:When the employer called Julia Vassilyevna in to talk with him, what he really wanted to do was _______
A.to settle their accounts
B.to criticize her for neglecting her duties as a governess.
C.to play a joke on her so as to amuse himself.
D.to teach her not to be so spineless.
小題2:The employer made all those criticisms about Julia Vassiliyevna’s work because __________
A.she had neglected her duties.
B.he wanted to pay her as little money as possible.
C.he wanted to make her realize that she was being cheated and protest against it.
D.he wanted to make her feel miserable.
小題3: Julia Vassilyevna accepted everything her employer said because ________
A.she had in fact neglected her duties.
B.she was a very dumb girl.
C.she thought it was of no use to protest to her employer.
D.she loved the children she taught.
小題4: The employer became very angry when Julia Vassilyevna said “ Merci” because ________
A.she didn’t say “Merci” loudly.
B.she didn’t protest to him.
C.he thought that by simply saying “ Merci” she wasn’t polite enough.
D.he didn’t like the way in which she stuffed the money into per pocket and expressed her thanks.
小題5: The text is about _______
A.how a governess was cheated by her employer.
B.how an employer tried to teach the governess a cruel lesson.
C.how a governess was fired by her employer for being a nincompoop.
D.how an employer punished the governess for not having done a good job.

查看答案和解析>>

科目:高中英語 來源:不詳 題型:完形填空

Soon it would be the holidays, but before that, there were final    36  . All the kids had been working hard for some time, reviewing their    37  . If they didn’t pass the exams, they would have to    38   them in September. There were usually a few who _39  , but Jane didn’t want to be one of them. She had worked hard all year, but she was working so hard that her mother   40    her. She went to bed too late. The night before the big day, her mother    41   that she should have an early night and take a sleeping pill. She promised to    42    her up in the morning.
Jane was too   43    to fall asleep. Her mind kept jumping from subject to subject. At last, the    44    did work. In no time at all, she was sitting in the examination hall, looking at the paper, but she couldn’t answer  45   of the questions. Everyone  46___ her was writing pages and pages.    47  , she couldn’t find anything to write about. From time to time she looked at her   48   .
Time was running    49   . There was only an hour to  50  . She started one question, wrote two sentences,   51    and tried another. With only half an hour left she wrote   52  two sentences. By this time she was so worried that she started  53   . Her whole body shook. It shook so much that she woke up. She was still in bed and it had all been a terrible   54   . A minute later,  55    called her name.
小題1:
A.harvests B.exams C.reportsD.papers
小題2:
A.exercises B.jobsC.books D.lessons
小題3:
A.take B.writeC.a(chǎn)ttendD.do
小題4:
A.cheatedB.succeeded C.passedD.failed
小題5:
A.cared for B.felt proud ofC.worried aboutD.thought highly of
小題6:
A.insistedB.a(chǎn)greedC.promisedD.a(chǎn)llowed
小題7:
A.ringB.wakeC.bringD.pick
小題8:
A.sadB.tiredC.happyD.nervous
小題9:
A.dreamB.pillC.suggestionD.music
小題10:
A.a(chǎn)llB.noneC.a(chǎn)nyD.some
小題11:
A.a(chǎn)head B.behindC.in the front ofD.a(chǎn)round
小題12:
A.UnlessB.HoweverC.ThoughD.As
小題13:
A.watchB.paperC.teacherD.book
小題14:
A.upB.downC.outD.over
小題15:
A.runB.leaveC.remainD.go
小題16:
A.gave outB.gave upC.put offD.put out
小題17:
A.a(chǎn)notherB.moreC.otherD.the other
小題18:
A.thinkingB.dreamingC.cryingD.writing
小題19:
A.examB.dreamC.storyD.night
小題20:
A.her motherB.her teacherC.a(chǎn) classmateD.a(chǎn) friend

查看答案和解析>>

科目:高中英語 來源:不詳 題型:完形填空

In a land far away, once upon a time, there was great poverty (貧困),and only the rich could manage without great _16_. Three of those rich men and their servants were_17_together on a road when they came to a very_18_village.
The first could not stand seeing the poverty, _19  he took all the gold and jewels from his wagons (四輪載重馬車) and shared _20 out among the villagers. He wished them all the best of luck, and he left.
The second rich man ,seeing the _21  situation, stopped for a short time and gave _22  all his food and drink, since he _23  see that money would be of little _24  to them. He made sure that they each _25  their fair share and would have enough food to _26  for some time . Then, he left.
The third rich man, on seeing such poverty, _27  and went straight through the _28  without stopping. The two other rich men saw this from a distance and commented with each other_29  the third rich man lacked sympathy. It was _30  that they themselves had been there to offer help.
However, three days later, they  31 the  third rich man ,who was coming in the opposite direction . He was  32  travelling quickly, but his wagons,  33  the gold and valuables they had been  34  ,were now full of farming tools and bags of  35  .He was rushing back to help them out of poverty.
小題1:
A.lossB.expectationsC.successD.problems
小題2:
A.standingB.travellingC.gatheringD.running
小題3:
A.farawayB.poorC.differentD.a(chǎn)ncient
小題4:
A.unlessB.becauseC.soD.if
小題5:
A.themB.a(chǎn)nythingC.nothingD.those
小題6:
A.curiousB.worryingC.dangerousD.puzzling
小題7:
A.the villagersB.his servantsC.the othersD.the rest
小題8:
A.couldB.mightC.shouldD.must
小題9:
A.interestB.concernC.useD.a(chǎn)ttraction
小題10:
A.returnedB.gainedC.offeredD.received
小題11:
A.remainB.lastC.supplyD.share
小題12:
A.turned backB.set outC.showed offD.speeded
小題13:
A.villageB.landC.fieldD.road
小題14:
A.whetherB.howC.whereD.when
小題15:
A.goodB.certainC.trueD.strange
小題16:
A.welcomedB.metC.a(chǎn)cceptedD.persuaded
小題17:
A.stillB.a(chǎn)lreadyC.a(chǎn)lwaysD.indeed
小題18:
A.exceptB.instead ofC.a(chǎn)part fromD.a(chǎn)long with
小題19:
A.loadingB.treasuringC.carryingD.earning
小題20:
A.foodB.jewelsC.moneyD.seeds

查看答案和解析>>

科目:高中英語 來源:不詳 題型:完形填空

The Making of a Surgeon
How does a doctor recognize the point in time when he is finally a “surgeon”? As my year as chief resident (進(jìn)修醫(yī)生) drew to a close, I asked myself this question  36  more than one occasion.
The answer, I concluded, was  37 .When you can say to yourself, “There is no surgical patient I cannot treat competently, treat just  38  or better than any other surgeon”-- then, and not until then, you are  39  a surgeon.I was  40  that point.
41  , for example, the emergency situations that we met almost every night.The first few months of the year I had  42  the ringing of the telephone.I knew it meant another critical decision to be  43 .Often, after I had told Walt or Larry what to do in a particular   44  , I'd have trouble getting back to sleep.I'd  45  all the facts of the case and, often, wonder  46  I had made a poor decision.More than once at two or three in the  47  , after lying awake for an hour, I’d get out of   48  , dress and drive to the hospital to see the patient myself.It was the only  49  I could find the   50  of mind I needed to relax.
Now, in the last month of my residency,  51  was no longer a problem.Sometimes I still couldn’t be sure of my decision, but I had learned to  52  this as a constant problem for a surgeon.I knew that with my knowledge and experience, any decision I'd made was bound to be a  53  one.It was a nice feeling.
This all sounds conceited (自負(fù)的) and I guess it is --  54  a surgeon needs conceit.He needs it to encourage him in trying moments when he's bothered by the  55  and uncertainties that are part of the practice of medicine.He has to feel that he's as good as and probably better than any other surgeon in the world.Call it conceit -- call it self-confidence; whatever it was, I had it.
小題1:
A.a(chǎn)tB.in C.on D.for
小題2:
A.self-service B.self-centered C.self-reliant D.self-confidence
小題3:
A.a(chǎn)s good asB.a(chǎn)s well as C.a(chǎn)s far as D.a(chǎn)s long as
小題4:
A.indeedB.maybe C.perhapsD.even
小題5:
A.waiting B.standing C.lying D.nearing
小題6:
A.Let B.Take C.Have D.Get
小題7:
A.valuedB.a(chǎn)voidedC.feared D.enjoyed
小題8:
A.made B.a(chǎn)ppliedC.included D.developed
小題9:
A.condition B.state C.occasion D.situation
小題10:
A.retellB.review C.revise D.remind
小題11:
A.ifB.whyC.howD.when
小題12:
A.evening B.dayC.morningD.a(chǎn)fternoon
小題13:
A.flat B.bedC.house D.a(chǎn)partment
小題14:
A.means B.a(chǎn)pproach C.method D.way
小題15:
A.peace B.troubleC.sorrow D.excitement
小題16:
A.driving B.reviewing C.sleeping D.lying
小題17:
A.expectB.a(chǎn)ccept C.respectD.inspect
小題18:
A.critical B.poor C.sound D.difficult
小題19:
A.but B.or C.so D.a(chǎn)nd
小題20:
A.confidenceB.conceitC.solutions D.doubts

查看答案和解析>>

科目:高中英語 來源:不詳 題型:閱讀理解

Ellen and Bill County are both teachers. They met in college and became good friends because of their shared love for children. Two years after the couple got married, Ellen saw a huge change in the life of one of her students, a 9-year-old girl. Three years ago both of the little girl’s parents had died and there was no one to take care of her. She was taken away to live in a government office. But finally she was taken in and adopted by a family and became their daughter. Ellen said that she noticed the difference in the child’s life after she was placed in a permanent home and thought that maybe she and her husband could help a child in a similar way.
They decided to become temporary parents and to take a child into their home on the weekends when the real parents could not take care of him or her. The pair planned to have their own children in a few years, but decided that this would be a way to give to the community in the meantime.
The couple quickly grew to love one of the children they looked after. When he became legally available, Billy became the first child they took in permanently. Six months after adopting Billy, Ellen was told by her doctor that she was unable to have children naturally. Ellen says she knew then that adoption was the way she was meant to have a family.
Since adopting Billy, now 17, Ellen and Bill have adopted five more children --- Rose,16; Albert, 11; Joshua, 5 and in June 2003, they added biological brother and sister Tyler and Rylee to the County family.
The County family has been recognized for their work on adoption, and have received many awards for their efforts. Last June, the family was even interviewed on the television show, “Adoption Stories”.
Ellen says she would like to encourage other families to adopt children. She adds that the best part of being a mother of six is: “Giving Josh a bath, putting a band-aid on a cut knee or just the everyday mom things, that makes motherhood such an honor and a privilege.”
小題1:What is the passage mainly about?
A.How a couple first met at collegeB.Where you can adopt a child
C.The benefits of adoption to the communityD.How adoption created a happy family
小題2:Why did Ellen and Bill first decide to adopt a childe?
A.Because they had always loved children very much
B.Because they saw the benefits of adoption for a child
C.Because they were not able to have children of their own
D.Because they wanted to receive awards for their community work
小題3:Which of the children are related to each other by blood?
A.Rylee and TylerB.Billy and Tyler
C.Albert and JoshuaD.Rose and Albert
小題4:What can be inferred from this passage?
A.Ellen had thought of adopting a child before getting married.
B.Only kids under 16 can be adopted by a family
C.A loving family is important to a child’s happiness
D.Adopting a child always makes the family become famous

查看答案和解析>>

同步練習(xí)冊(cè)答案