Barcodes (條形碼) aren’t given much thought by the majority of consumers, but these codes were fairly recently applied in a working fashion in 1970.
A small food store owner decided one day that keeping records of the inventory (存貨) of his stock and the associated prices were an extremely laborious process, and so, in 1948, he contacted the The Drexel Institute of Technology in a bid to work towards a solution. Bernard Sliver rose to the challenge and set out to study the problem, and began working on a solution involving an automatic way of keeping track of items that had been sold. Silver and a group of students from the institute realized their answer in the form of ultraviolet light (紫外線), ink and a scanner.

The system worked initially, but possessed some negatives. It was incredibly costly to carry out on a large scale and the system was also unstable. If the invention was to become commonplace (尋常的事) in grocery stores, these two problems had to be solved.
The patent (專利)for the bar code system was filed by Sliver and one of his students, Woodland. The patent was not granted immediately; in fact it took three years for the patent agency to grand their invention patent for the barcode, occurring on 7th October, 1952.
Despite the patent being issued, the system was still not welcomed by the majority of store owners. It was not until 1966 that the system began moving its way into more and more grocery stores. This system was soon criticised, as there was no central mechanism for controlling uniformly coded items. In 1970, Logicorn developed the Universal Grocery Products Identification code (UGOIC), soon shortened to Universal Identification Number (UPC). It was Marsh’s superstore, in Troy, which was the very first store to install this complex barcode reading system, and its popularity has soared (升溫) ever since, and is obviously now commonplace in all types of stores worldwide.
小題1:What is stressed in the second paragraph?
A.The heavy work of store owners.
B.The function of ultraviolet light, ink and a scanner.
C.The origination of barcodes
D.Bernard Silver’s education background.
小題2:Which of the following was NOT a drawback of Silver’s system?
A.It was expensive to be applied on a large scale.
B.It was a laborious process.
C.The system was not stable.
D.It lacked a central mechanism.
小題3:What is the purpose of the text?
A.To tell people that failure is the mother of success.
B.To praise scientists’ efforts in making people’s lives easier.
C.To describe shop owners’ opinions of barcodes.
D.To provide information about the development of barcodes.

小題1:C
小題2:B
小題3:D

試題分析:文章主要講述了條形碼的起源,剛開始的系統(tǒng)缺陷及其后期不斷的改進(jìn),最終能夠被廣大的商店主們運(yùn)用的發(fā)展經(jīng)歷。
小題1:細(xì)節(jié)題。從第二自然段可知,一個(gè)店主覺得自己的商品的存貨和價(jià)錢的標(biāo)簽匹配是非常費(fèi)時(shí)的工作,所以決定發(fā)明一種解決方法,故只要是講條碼的起源,故選C
小題2:細(xì)節(jié)題。從It was incredibly costly to carry out on a large scale and the system was also unstable.和This system was soon criticised, as there was no central mechanism for controlling uniformly coded items. 可知他的系統(tǒng)有這三方面的缺陷,而只有能夠解決繁瑣的工作不是他的缺點(diǎn),故選B
小題3:主旨題。文章主要講述了條形碼的起源,剛開始的系統(tǒng)缺陷及其后期不斷的改進(jìn),最終能夠被我們大家接受的這樣的一個(gè)發(fā)展歷程,故選D
點(diǎn)評(píng):本文不難,結(jié)構(gòu)清晰,題目設(shè)置合理。屬于說明文中較容易的文體。說明文是歷年高考很常見的文體,對于科技類的說明文比較難,而對于介紹事物的文體較容易。本文中,把握好是對條形碼的歷史發(fā)展的描述。同時(shí),此類文章對于細(xì)節(jié)題,在對文章看懂了的基礎(chǔ)再仔細(xì)對比選項(xiàng)和文章,即可得出答案。
練習(xí)冊系列答案
相關(guān)習(xí)題

科目:高中英語 來源:不詳 題型:閱讀理解

The Taj Mahal (泰姬陵) is a love story, a sad and beautiful one. If it didn’t exist, we would easily imagine that the story of its construction was simply a fairy tale. Three hundred years ago, there lived an Indian emperor called Shah Jahan. His wife was a beautiful and bright woman whom he loved greatly. Her title was Mumtazl Mahal: its shortened form Taj Mahal, means “pride of the palace”. In the year 1630 this beloved wife of the emperor died. He was so brokenhearted that he thought of giving up his throne. He decided out of his love for his wife, to build her the most beautiful tomb that had ever been seen.
He summoned the best artists and architects from India, Turkey, Persia and Arabia and finally, the design was complete. It took more than twenty thousand men working over a period of 18 years to build the Taj Mahal, one of the most beautiful buildings in the world.
The building itself stands on a marble platform 29 meters square and 6-7 meters high. Towers rise from each of the four corners. The Mahal itself soars another 61 meters into the air. It is an eight-sided building made of white marble.
The emperor planned to build an identical tomb of black marble for himself on the other side of the river connected by a silver bridge. However, his son put him into a prison in the palace before he could finish, and for the rest of his life, he could only gaze across the river at the tomb of his beloved wife.
小題1: The whole passage tells us about ______.
A.a(chǎn) beautiful fairy tale
B.the story of the Taj Mahal
C.white and black marble tombs made for two emperors
D.the love story of Emperor Shah Jahan and his wife
小題2:Which of the following statements is NOT true about the Taj Mahal?
A.It was completed quickly owing to the efforts of the best artists and workers.
B.A lot of people took part in the building work.
C.It is a magnificent building.
D.It is a tomb for the emperor’s beloved wife.
小題3: The emperor’s own tomb was designed to be ____________.
A.61 meters high B.eight-sidedC.black-coloredD.white-colored
小題4:The emperor _____________.
A.died soon after Taj Mahal died
B.was killed by his son
C.was beloved by his people
D.died after 1648

查看答案和解析>>

科目:高中英語 來源:不詳 題型:閱讀理解

ABORIGINAL is a term used to describe the people and animals that lived in a place from the earliest known times or before Europeans arrived. Examples are the Maori in New Zealand, the Aborigines in Australia and the Indians in America. They all share the fact that they were pushed off their land by European settlers.
Maori
The Maori were the first people to go to New Zealand, about 1,000 years ago. They came from the islands of Polynesia in the Pacific. They brought dogs, rats and plants with them and settled mainly on the Northern Island. In 1769, Captain James Cook from Britain took possession of the Island and from that time British people started to settle. The Maori signed an agreement on land rights with these settlers, but in later years there were arguments and battles between them.
Aborigines
The native people of Australia came from somewhere in Asia more than 40,000 years ago. They lived by hunting and gathering. Their contact with British settlers began in 1788. By the 1940s almost all of them were mixed into Australian society as low-paid workers. Their rights were limited. In 1976 and 1993 the Australian Government passed laws that returned some land to the Aborigines and recognized their property rights.
American Indians
Long before the Europeans came to America in the 16th and 17th century, the American Indians, or Native Americans, lived there. It is believed that they came from Asia. Christopher Columbus mistook the land for India and so called the people there Indians. The white settlers and American Indians lived in peace at the beginning, but conflicts finally arose and led to the Indian Wars (1866-1890). After the wars, the Indians were driven to the west of the country. Not until 1924 did they gain the right to vote.
小題1:The similarity among Maoris, Aborigines and American Indians is that _________.
A.they lost their vote right after European settlers’ arrival
B.they lost their land after European settlers’ arrival
C.they were driven out of their country after European settlers’ arrival
D.they were not treated as citizens until recently
小題2:Before European settlers arrived, we can infer that the Aboriginals had lived _________ life.
A.a(chǎn) miserableB.a(chǎn) bitterC.a(chǎn) peacefulD.a(chǎn) troublesome
小題3:Which of the following was first interrupted by the Europeans?
A.Maoris.B.Aborigines.C.American Indians.D.Not mentioned.
小題4:The passage mainly tells us _______.
A.the war between aboriginal people and white settlers
B.the history of Maoris, Aborigines and American Indians
C.the present unfair treatment to aboriginal people of the world
D.European settlers were the enemy of all aboriginal people

查看答案和解析>>

科目:高中英語 來源:不詳 題型:閱讀理解

Today, bicycles are elegantly simple machines that are common around the world. Many people ride bicycles for recreation, whereas others use them as a means of transportation. The first bicycle was invented in Germany in 1818. Because it was made of wood, it wasn’t very strong nor did it have pedals (腳踏板).Riders moved it by pushing their feet against the ground.
In 1839, Kirkpatrick Macmillan, a Scottish blacksmith, invented a much better bicycle. Macmillan’s machine had iron-covered wheels to keep them from getting worn down. He also used foot-operated levers, similar to pedals, so his bicycle could be ridden at a quick pace. It didn’t look much like the modem bicycle, though, because its back wheel was substantially larger than its front wheel. Although Macmillan’s bicycles could be ridden easily, they were never produced in large numbers.
In 1861, Frenchman Pierre Michaux and his brother Ernest invented a bicycle with an improved pedal mechanism. They called their bicycle a velocipede,but most people called it a “bone shaker” because of the effect of the wood and iron frame. Despite the impolite nickname, the velocipede was a hit. After a few years, the Michaux family was making hundreds of the machines annually, mostly for fun-seeking young people.
Ten years later, James Starley , an English inventor, made several innovations that revolutionized bicycle design. He made the front wheel many times larger than the back wheel, put a gear on the pedals to make the bicycle more efficient,and lightened the wheels by using wire spokes. Although this bicycle was much lighter and less tiring to ride, it was still clumsy, extremely top-heavy,and ridden mostly for entertainment.
It wasn’t until 1874 that the first truly modern bicycle appeared on the scene. Invented by another Englishman, H. J. Lawson, the safety bicycle would look familiar to today’s cyclists. The safety bicycle had equal-sized wheels, which made it easier to ride. Lawson also attached a chain to the pedals to drive the back wheel. By 1893,the safety bicycle had been further improved with air-filled rubber tires, a diamond-shaped frame, and easy braking. With the improvements provided by Lawson; bicycles became extremely popular and useful for transportation. Today, they are built, used, and enjoyed all over the world.
小題1:This passage was most likely written in order to _____.
A.compare bicycles used for different purposes
B.describe the problems early bicycle makers experienced
C.persuade readers to use bicycles for transportation
D.tell readers about the early history of the bicycle
小題2:Macmillan covered the wheels of his bicycle with iron to _____
A.a(chǎn)dd weight to the bicycle
B.make the bicycle easier to ride
C.a(chǎn)llow the wheels to last longer
D.let the bicycle be more comfortable
小題3:Which of the following bicycle types was invented by James Starley?

小題4:Which of the following statements is true according to the passage?
A.Two hundred years ago,bicycles did not exist.
B.The first bicycle could be ridden at a very quick pace.
C.The Michaux brothers called their bicycle a “bone shaker”.
D.Macmillan’s machine had wheels with rubber tires.
小題5:The information about bicycles in this passage is arranged according to _____.
A.importanceB.timeC.placeD.Interest

查看答案和解析>>

科目:高中英語 來源:不詳 題型:閱讀理解

“We do look very different; we’re older. Leo’s 38, I’m 37. We were 21 and 22 when we made that film. You know, he’s fatter now -- I’m thinner.” So says Kate Winslet, who is thrilled at the 3-D re-release of Titanic to coincide with the 100th anniversary of the ship’s demise. “It happens every time I get on any boat of any kind." She recalls. There are all the people who want her to walk to the front of the ship and re-create her famous pose, arms flung wide. Most people remember the tragedy: The British passenger ship—said to be unsinkable—hit an iceberg and sank on April 15, 1912, during its maiden voyage from England to New York City. More than 1,500 people died. But little known is what the world learned from the sinking to prevent future incidents.
Probably the greatest deficiency (不足) of the Titanic was that she was built 40 years before the widespread use of the wonderful invention radar (雷達(dá)). Her only defense against icebergs and hidden obstacles was to rely on manned lookouts. On that fateful night the eyesight of trained lookouts only provided 37 seconds of warning before the collision.
Traveling at nearly 30 miles an hour, the Titanic was moving far too fast to avoid the huge iceberg. The warning did prevent a head-on collision as the officer on the bridge managed to turn the ship slightly.
The last ship to which it could send an SOS message was the California. She was within ten miles of the Titanic during the disaster, but her radio operator went to bed at midnight and never received any of the SOS messages from the Titanic. That was one of the important lessons learned from the catastrophe, the need for 24-hour radio operators on all passenger liners.
Another lesson learned was the need for more lifeboats. The Titanic remained afloat (漂浮) for almost three hours and most of the passengers could have been saved with enough lifeboats.
1,500 passengers and workers died in the 28 degree waters of the Atlantic. Out of the tragedy, the sinking did produce some important maritime reforms. The winter travel routes were changed to the south and the Coast Guard began to keep an eye on the location of all icebergs. The new rules for lifeboats were obvious to all. There must be enough lifeboats for everybody on board.
The most important lesson learned was that no one would ever again consider a ship unsinkable—no matter how large or how well constructed. Never again would sailors place their faith in a ship above the power of the sea.
小題1:The text mainly tells us ______.
A.the reason why the Titanic sank in the Atlantic Ocean
B.how the unsinkable ship of Titanic sank in the Atlantic Ocean
C.the lessons that we could learn from the accident of the Titanic
D.the things we should do to protect the lives on the ship
小題2:According to the passage, which of the following could we infer?
A.If the captain had been more careful, he could have had the chance to save the Titanic.
B.If radar had existed 40 years ago, the Titanic would have never disappeared from the world.
C.If the lookout had had much more experience, he could have had the time to save the Titanic.
D.If there had been enough lifeboats on the Titanic, the Titanic would not have sunk in the Atlantic.
小題3:What would be the best title for the passage?
A.Lessons from the TitanicB.Technology is Important
C.Demands of PassengersD.Power of Sea
小題4:What’s the sailors’ attitude towards the ships after the tragedy?
A.They think there really exists the unsinkable ship.
B.They think ships could eventually defeat the sea.
C.They think there is no power that could control the sea.
D.They think the bigger the ship is, the safer it is.

查看答案和解析>>

科目:高中英語 來源:不詳 題型:閱讀理解

During the early years of American settlement, a new form of English was beginning to develop in the islands of the West Indies and the southern part of the mainland, spoken by the black population. The beginning of the seventeenth century saw the happening of the slave trade. Ships from Europe travelled to the West African coast, where they exchanged cheap goods for black slaves. The slaves were shipped in terrible conditions to the Caribbean islands and the American coast, where they were in turn exchanged for such products as sugar and molasses(糖蜜). The ships then returned to England, completing an “Atlantic triangle”of journeys, and the process began again. Britain and the United States had outlawed the slave trade by 1865, but by that time, nearly 200 years of trading had taken place. By the middle of the nineteenth century, there were over four million black slaves in America.
The policy of the slave-traders was to bring people of different language backgrounds together in the ships, to make it difficult for groups to plan rebellion. The result was the growth of several pidgin (混雜語言) forms of communication, and in particular a pidgin between the slaves and the sailors many of whom spoken English. Once arriving in the Caribbean, this pidgin English continued to act as a major means of communication between teh black population and the new landowners, and among the blacks themselves. Then, when children came to be born, the pidgin became their mother tongue, thus producing the first black Creole(克里奧爾語) speech in the region. This Creole English rapidly came to be used throughout the cotton plantations (種植園), and in the coastal towns and islands.
小題1:Which of the following shows the route of slave trade correctly?
A.EuropeWest African coastthe Caribbean islands and the American coastEurope
B.EuropeWest African coastEuropethe Caribbean islands and the American coast
C.West African coastEuropethe Caribbean islands and the American coastEurope
D.West African coastEuropethe Caribbean islands and the American coastWest African coast
小題2:It can be inferred that the slaves in the same ship ____.
A.didn’t communicate with each other
B.could understand several languages
C.spoke different languages
D.came from the same place
小題3:Creole speech comes from _____.
A.Spanish and English
B.English and an African language
C.a(chǎn) European language and an American language
D.a(chǎn)n African language and an American language
小題4:What is the text mainly about?
A.The history of slave trade.B.“Atlantic triangle” of journeys.
C.Languages spoken in AmericaD.The birth of black English

查看答案和解析>>

科目:高中英語 來源:不詳 題型:閱讀理解

London is the capital of the United Kingdom and the largest city in the European Union. It is the world’s largest finacial center and one of the most important cultural centers and its influence on politics, education, entertainment, media, fashion, and the arts contributes to its status as a major global city. Central London is the headquarters of more than half of the UK’s top 100 listed companies(the FTSE 100 ) and more than 100 of Europe’s 500 largest companies. The city is a major tourist destination for both domestic and overseas visitors. London hosted the 1908 and 1948 Summer Olympic Games and will host the 2012 Summer Olympic Games.
London contains four World Heritage Sites: the Tower of London, the historic settlement of Greenwich ;the Royal Botanic Garden, Kew; and the site comprising the Palace of Westminster, Westminster Abbey and St.Margaret ‘s Church.
 London currently has a wide range of peoples, cultures, and religions, and more than 300 languages are spoken within the city. On July 2007, it had an official population of 7,556, 900 within the boundaries of Greater London making it the most populous municipality in the European Union. Since the 2001 the Greater London Urban Area has been the second largest in the EU after Paris with a population of 8,278,251, and the metropolitan area is estimated to have a total population of between 12 million and 13 million, the largest population area in the EU. The public transport network, administered by Transport for London, is the most intensive in the world. Heathrow Airport is the busiest airport in the world by international passenger traffic and the air space is the busiest of any city in the world.
小題1:Which statement is True ?
A.Central London has 50 of the UK’s top 100 listed companies.
B.By the year of 2015, London will host the Summer Olympic Games.
C.Three are 300 languages spoken within the city.
D.The metropolitan area of Paris is the largest one in the EU.
小題2:What does the underlined sentence in Paragraph 3 want to express?
A.London is a multicultural city.B.London has a large population.
C.London has a lot of religions.D.London has many languages.
小題3:What does the underlined word“it “in the second sentence of Paragraph 3 refer to?
A.The populationB.Urban areaC.ParisD.London

查看答案和解析>>

科目:高中英語 來源:不詳 題型:閱讀理解

There are some great differences between the traditional family and the modern family.
The first important difference is in the man’s role.The traditional husband was the head of the household because he was the only one who worked outside the home.If the wife worked for money,then the husband was not considered to be a good provider,In many families today,both husband and wife work for money.Therefore,they share the role of head of household.In addition,the traditional husband usually made big decisions about spending money.However,the modern husband shares these decisions with his working wife.Also,the traditional husband did not help his wife with housework or meal preparation.  Dinner was ready when he came home,In contrast,the modern husband helps his working wife at home.He may do some of the household chores,and it is not unusual for him to cook.
The second difference is in the woman’s role. In the traditional family,the woman may have worked for miney during her first years of marriage.However,when she gave birth,she would usually give up her job. Her primary role would be to take care of her family and home.In contrast,in many families today,the modern woman works outside the home even after she has children .She’s doing two jobs instead of one,so she is busier than the traditional mother was.The traditional wife learned to live within her husband’s income.But the modern wife does not have to because the family has two incomes.
The final difference is in the role of the children .In the traditional family,the children were taken care of by the mother because she didn’t work outside.However,today pre-school children may go to a child-care center or to a baby-sitter regularly because the mother works.The school-age children of a traditional family were more dependent.Their mother was there to help them get ready for school and to make their breakfast.In conrtast,modern children are more independent.They have to get up early and get ready for school themselves,and they may even have to make their own breakfast.
小題1:The main idea of the passage is        .
A.the change of the American society
B.the change of the American children
C.the change of the American family
D.the change of the American adults
小題2:In the past,if the husband let his wife get a job,        .
A.people would not think highly of his wife
B.people would think little of him
C.people would refuse to be friends with him
D.people would look up to him
小題3:The husband in the modern family         .
A.is still the boss of the family who decides all of the important things
B.lets the wife make all of the decisions alone
C.shares big decisions with his working wife
D.no longer works for money because the wife is working
小題4:According to the passage,which of the following is true?
A.The husband in the modern family does a lot of housework except cooking.
B.Modern wives have more free time because their husbands share housework.
C.Modern wives no longer cook dinners for husbands.
D.It’s common for men to buy dishes,send children to school ,and even cook in a modern family.

查看答案和解析>>

科目:高中英語 來源:不詳 題型:閱讀理解

The CEO of Apple, Steve Jobs’ story about death
When I was 17, I read a quote that went something like: “If you live each day as if it were your last, someday you’ll most certainly be right.” It made an impression on me, and since then, for the past 33years, I have looked in the mirror every morning and asked myself, “If today were the last day of my life, would I want to do what I am about to do today?”
Remembering that I’ll be dead soon is the most important tool I’ve ever encountered(遇到)to help me make the big choice in life.
About a year ago I was diagnosed with cancer. The doctors told me this was almost certainly a type of cancer that was incurable, and that I would live no longer than three to six months. My doctor advised me to go home and get my affairs in order, which is my doctors’ code for preparing yourself to die.
I lived with that diagnosis all day. I was completely in despair. Later that evening, I had another biopsy(活組織檢查)and my wife told me that tumor turned to be curable with surgery. I had the surgery and I’m fine now.
This was the closest I’ve been to facing death. To tell the truth, no one wants to die. And yet death is the destination we all share. No one has ever escaped it. It clears out the old to make room for the new. Right now the new is you, but someday not too long from now, you will gradually become the old and be cleared away.
Your time is so limited that you shouldn’t waste it repeating someone else’s life. Don’t be trapped by dogma(教條)----which is living with the results of other people’s thinking. Don’t let the noise of others’ opinions drown out your own inner voice. And most importantly, have the courage to follow your heart. It somehow already knows what you truly want to become. Everything else is secondary.
小題1:The doctor advised the author to go home and get his affairs in order because_________.
A.he had to rest at home
B.his disease was not serious at all
C.his disease couldn’t be cured
D.he had to wait for the result of the test
小題2: How did the author feel after the diagnosis?
A.AngryB.ExcitedC.OptimisticD.Hopeless
小題3:What does the author think of death?
A.He thinks it is nothing to be scared of.
B.He thinks it is not the end of life.
C.He thinks it is impossible to avoid.
D.He thinks it is the beginning of a new life
小題4: In the author’s opinion, we should ____________.
A. follow others’ advice
B. take no notice of diseases
C. take exercise and keep healthy
D have the courage to follow our heart

查看答案和解析>>

同步練習(xí)冊答案