人教版英语必修五课文电子版

U n i t1G R E A T S C I E N T I S T S

JOHN SNOW DEFEATS “KING CHOLERA”

John Snow was a famous doctor in London — so expert, indeed, that he attended Queen Victoria as her personal physician. But he became inspired when he thought about helping ordinary people exposed to cholera. This was the deadly disease of its day. Neither its cause nor its cure was understood. So many thousands of terrified people died every time there was an outbreak. John Snow wanted to face the challenge and solve this problem. He knew that cholera would never be controlled until its cause was found.

He became interested in two theories that possibly explained how cholera killed people. The first suggested that cholera multiplied in the air, a cloud of dangerous gas floated around until it found its victims. From the stomach the disease quickly attacked the body and soon the affected person died.

John Snow suspected that the second theory was correct but he needed evidence. So when another outbreak hit London in 1854, he was ready to begin his enquiry. As the disease spread quickly through poor neighbourhoods, he began to gather information. In two particular streets, the cholera outbreak was so severe that more than 500 people died in ten days. He was determined to find out why.

First he marked on a map the exact places where all the dead people have lived. This gave him a valuable clue about the cause of the disease. Many of the deaths were near the water pump in Broad Street (especially numbers 163738 and 40). He also noticed that some houses (such as 20 and 21 Broad Street and 8 and 9 Cambridge Street) had had no deaths. He had not foreseen this, so he made further investigations. He discovered that these people worked in the pub at 7 Cambridge Street. They had been given free beer and so had not drunk the water from the pump. It seemed that the water was to blame, Next, John Snow looked into the source of the water for these two streets. He found that it came from the river polluted by the dirty water from London. He immediately told the astonished people in Broad Street to remove the handle from the pump so that it could not be used. Soon afterwards the disease slowed down. He had shown that cholera was spread by germs and not in a cloud of gas.

In another part of London, he found supporting evidence from two other deaths that were linked to the Broad Street outbreak. A woman, who had moved away from Broad Street, liked the water from the pump so much that she had it delivered to her house every day. Both she and her daughter died of cholera after drinking the water.

With this extra evidence John Snow was able to announce with certainty that polluted water carried the virus.

To prevent this from happening again, John Snow suggested that the source of all the water supplies be examined. The water companies were instructed not to expose people to polluted water any more. Finally “King Cholera” was defeated.

COPERNICUS’ REVOLUTIONAY THEORY

Nicolaus Copernicus was frightened and his mind was confused. Although he had tried to ignore them, all his mathematical calculations led to the same conclusion: that the earth was not the centre of the solar system. Only if you put the sun there did the movements of the other planets in the sky make sense. Yet he could not tell anyone about his theory as the powerful Christian Church would have punished him for even suggesting such an idea. They believed God had made the world and for that reason the earth was special and must be the centre of the solar system.

The problem arose because astronomers had noticed that some planets in the sky seemed to stop, move backward and then go forward in a loop. Others appeared brighter at times and less bright at others. This was very strange if the earth was the centre of the solar system and all planets went around it.

Copernicus had thought long and hard about these problems and tried to find an answer. He had collected observations of the stars and used all his mathematical knowledge to explain them. But only new theory could do that. So between 1510 and 1514 he worked on it, gradually improving his theory until he felt it was complete.

In 1514 he showed it privately to his friends. The changes he made to the old theory were revolutionary. He placed a fixed sun at the centre of the solar system with the planets going round it and only the moon still going around the earth. He also suggested that the earth was spinning as it went around the sun and this explained changes in the movement of the planets and in the brightness of the stars. His friends were enthusiastic and encouraged him to publish his ideas, but Copernicus was cautious. He did not want to be attacked by the Christian Church, so he only published it as he lay dying in 1543.

Certainly he was right to be careful. The Christian Church rejected his theory, saying it was against God’s idea and people who supported it would be attacked. Yet Copernicus’ theory is now the basis on which all our ideas of the universe are built. His theory replaced the Christian idea of gravity, which said things fell to earth because God created the earth as the centre of the universe.

Copernicus showed this was obviously wrong. Now people can see that there is a direct link between his theory and the work of Isaac Newton, Albert Einstein and Stephen Hawking.

Unit 2 The United Kingdom

PUZZLES IN GEOGRAPHY

People may wonder why different words are used to describe these four countries: England, Wales, Scotland and Northern Ireland. You can clarify this question if you study British history.

First there was England. Wales was linked to it in the thirteenth century. Now when people refer to England you find Wales included as well. Next England and Wales were joined to Scotland in the seventeenth century and the name was changed to "Great Britain". Happily this was accomplished without conflict when King James of Scotland became King of England and Wales as well. Finally the English government tried in the early twentieth century to form the United Kingdom by getting Ireland connected in the same peaceful way. However, the southern part of Ireland was unwilling and broke away to form its own government. So only Northern Ireland joined with England, Wales and Scotland to become the United Kingdom and this was shown to the world in a new flag called the Union Jack. To their credit the four countries do work together in some areas (eg, the currency and international relations), but they will have very different institutions. For example, Northern Ireland, England and Scotland have different educational and legal system as well as different football terms for competitions like the World Cup!

England is the largest of the four countries, and for convenience it is divided roughly into three zones. The zone nearest France is called the South of England, the middle zone is called the Midlands and the one nearest to Scotland is known as the North. You find most of the population settled in the south, but most of the industrial cities in the Midlands and the North of England. Although, nationwide, these cities are not as large as those in China, they have world-famous football teams and some of them even have two! It is a pity that the industrial cities built in the nineteenth century do not attract visitors. For historical architecture you have to go to older but smaller towns built by the Romans. There you will find out more about British history and culture.

The greatest historical treasure of all is London with its museums, art collections, theatres, parks and buildings. It is the centre of national government and its administration. It has the oldest port built by the Romans in the first century AD, the oldest building begun by the Anglo-Saxons in the 1060s and the oldest castle constructed by later Norman rulers in 1066. There have been four sets of invaders of England. The first invaders, the Romans, left their towns and roads. The second, the Anglo-Saxons, left their language and their government. The third, the Vikings, influenced the vocabulary and place-names of the North of England, and the fourth, the Normans, left castles and introduced new words for food.

If you look around the British countryside you will find evidence of all these invaders. You must keep your eyes open if you are going to make your trip to the United Kingdom enjoyable and worthwhile.

SIGHTSEEING IN LONDON

Worried about the time available, Zhang Pingyu had made a list of the sites she wanted to see in London. Her first delight was going to the Tower. It was built long ago by the Norman invaders of AD 1066. This solid stone, square tower had remained standing for one thousand years. Although the buildings had expanded around it, it remained part of a royal palace and prison combined. To her great surprise, Zhang Pingyu found the Queen's jewels guarded by special royal soldiers who, on special occasions, still wore the

four-hundred-year-old uniform of the time of Queen Elizabeth I.

There followed St Paul's Cathedral built after the terrible fire of London in 1666. It looked splendid when first built! Westminster Abbey, too, was very interesting. It contained statues in memory of dead poets and writers, such as Shakespeare. Then just as she came out of the abbey, Pingyu heard the famous sound of the clock, Big Ben, ringing out the hour. She finished the day by looking at the outside of Buckingham Palace, the Queen's house in London. Oh, she had so much to tell her friends!

The second day the girl visited Greenwich and saw its old ships and famous clock that sets the world time. What interested her most was the longitude line. It is an imaginary line dividing the eastern and western halves of the world and is very useful for navigation. It passes through Greenwich, so Pingyu had a photo taken standing on either side of the line.

The last day she visited Karl Marx's statue in Highgate Cemetery. It seemed strange that the man who had developed communism should

have lived and died in London. Not only that, but he had worked in the famous reading room of the Library of the British Museum. Sadly the library had moved from its original place into another building and the old reading room was gone. But she was thrilled by so many wonderful treasures from different cultures displayed in the museum. When she saw many visitors enjoying looking at the beautiful old Chinese pots and other objects on show, she felt very proud of her country.

The next day Pingyu was leaving London for Windsor Castle. "Perhaps I will see the Queen" she wondered as she fell asleep.

Unit 3 LIFE IN THE FUTURE

FIRST IMPRESSIONS

Spacemail:liqiang15/11/3008(earthtime)

Dear Mum and Dad,

I still cannot believe that I am taking up the prize that I won last year. I have to remind myself constantly that I am really in AD 3008. Worried about the journey, I was unsettled for the first few days. As a result, I suffered from“time flag”. This is similar to the “jet lag” you get from flying, but it seems you keep getting flashbacks from your previous time period. So I was very nervous and uncertain at first, however, my friend and guide, Wangping, was very understanding and gave some green tablets which helped a lot.

Well- know for their expertise, his parents’ company, called “Future Tours”, tr ansported me safely into the future in a time capsule.

I can still remember the moment when the space stewardess called us all to the capsule and we climbed in through a small opening. The seats were comfortable and after a calming drink, we felt sleepy and closed our eyes. The capsule began swinging gently sideways as we lay relaxed and dreaming. A few minutes later, the journey was completed and we had arrived. I was still on the earth but one thousand years in the future. What would I find

At first my surroundings were difficult to tolerate. The air seemed thin, as though its combination of gas had little oxygen left. Hit by a lack of fresh air, my head ached. Just as I tried to make the necessary adjustment to this new situation, Wangping appeared. “Put on this mask,” he advised. “it’ll make you feel much better.” He handed it to me and immediately hurried me through to a small room nearby for a rest. I felt better in no time. Soon I was back on my feet again and following him to collect a hovering carriage driven by computer. These carriages float above the ground and by bending or pressing down in your seat, you can move swiftly. Wangping fastened my safety belt and showed me how to use it. Soon

I could fly as fast as him. However, I lost sight of Wangping when we reached what looked like a large market because of too many carriages flying by in all directions. He was swept up into the centre of them. Just at that moment I had a “time lag” flashback and saw the area again as it had been in the year AD 2008. I realized that I had been transported into the future of what was still my hometown! Then I caught sight of Wangping again and flew after him.

Arriving at a strange-looking house, he showed me into a large, bright clean room. It had a green wall, a brown floor and soft lighting. Suddenly the wall moved- it was made of trees! I found later that their leaves provided the room with much-needed oxygen. Then Wangping flashed a switch on a computer screen, and a table and some chairs rose from under the floor as if by magic. “Why not sit down and eat a little” he said. “You may found this difficult as it is your first time travel trip. Just relax, since there is nothing planned on the timetable today. Tomorrow you’ll be ready for some visits.” Having said this, he spread some food on the table, and produced a bed from the floor. After he left, I had a brief meal and a hot bath. Exhausted, I slid into bed and fell fast asleep.

More news later from your loving son,

Li Qiang

I HAVE SEEN AMAZING THINGS

My first visit was to a space station considered the most modern in space. Described as an enormous round plate, it spins slowly in space to imitate the pull of the earth’s gravity. Inside was an exhibition f the most up-to-date inventions of the 31st century. A guide (G) showed us around along a moveable path.

G: Good morning to all our visitors from 2008. First we’re going to examine one of the latest forms of communication among our space citizens. No more typists working on a typewriter or computer! No more postage or postcodes! Messages can now be sent using a “thoughtpad”. You place the metal band over your head, clear your mind, press the sending button, think your message and the next instant it’s sent. It’s stored on the “thoughtpad” of the receiver. It’s qu ick, efficient and environmentally friendly. The only limitation is if the user does not think his or her message clearly, an unclear message may be sent. But we cannot blame the tools for the faults of the user, can we

During the explanation I looked at the pair of small objects called “thoughtpads” on a table. They just looked like metal ribbons. So ordinary but so powerful! While I was observing them, the path moved us on.

G: And now ladies and gentlemen, we are in the “environment area”. People used to collect waste in dustbins. Then the rubbish was sent to be buried or burned, am I right ( We nodded.) Well, now there’s a system where the waste is disposed of using the principles of ecology. A giant machine, always greedy for more, swallows all the waste available. The rubbish is turned into several grades of useful material, such as “fertilizer” for the fields and “soil” for deserts. Nothing is wasted, and everything, even plastic bags, is recycled. A great idea, isn’t it

I stared at the moving model of the waste machine, absorbed by its efficiency. But again we moved on.

G: Our third stop shows the changes that have happened to work practices. Manufacturing no longer takes place on the earth but on space station like this one. A group of engineers programme robots to perform tasks in space. The robots produce goods such as drugs, clothes, furniture, hovering carriages, etc. There is no waste, no pollution and no environmental damage! However, the companies have to train their representatives to live and work in space settlements. They have to monitor the robots and the production. When the goods are ready they’re transported by industrial spaceship back to earth.

My mind began to wander. What job would I do My motivation increased as I thought of the wonderful world of the future.

Unit 4 MAKING THE NEWS

MY FIRST WORK ASSIGNMENT

“Unforgettable”, says new journalist

Never will Zhou Yang( ZY) forget his first assignment at the office of a popular English newspaper. His discussion with his new boss, Hu Xin( HX), was to strongly influence his life as a journalist. HX: Welcome. We’re delighted you’re coming to work with us. Your first job here will be an assistant journalist. Do you have any questions

ZY: Can I get out on a story immediately

HX：(laughing) That’s admirable, but I’m afraid it would be unusual! Wait till you’re more experienced. First we’ll put you as an assistant to an experienced journalist. Later you can cover a story and submit the article yourself.

ZY: Wonderful! What do I need to take with me I already have a notebook and camera.

HX: No need for a camera. You’ll have a professional photographer with you to take photographs. You’ll find your colleagues very eager to assist you, so you may be able to concentrate on photography later if you’re int erested.

ZY: Thank you. Not only am I interested in photography, but I took an amateur course at university to update my skills.

HX: Good.

ZY: What do I need to remember when I go out to cover a story HX: You need to be curious. Only if you ask many different questions will you admire all the information you need to know. We say a good journalist must have a good “nose” for a story. That means you must be able to assess when people are not telling the whole truth and then try to discover it. They must use research to inform themselves of the missing parts of the story.

ZY: What should I keep in mind

HX: Here comes my list of dos and don’ts: don’ts miss your deadline, don’t be rude, don’t talk too much, but make sure you listen to the interviewee carefully.

ZY: Why is listening so important

HX: Well, you have to listen for detailed facts. Meanwhile you have to prepare the next question depending on what the person says. ZY: But how can I listen carefully while taking notes

HX: This is a trick of the trade. If the interviewee agrees, you can use a recorder to get the facts straight. It’s also useful if a person wants to challenge you. You have the evidence to support your story.

ZY: I see! Have you ever had a case where someone accused your journalists of getting the wrong end of the stick

HX: Yes, but it was a long time ago. This is how the story goes.

A football was accused of taking money for deliberately not scoring goals so as to let the other team win. We went to interview him. He denied taking money but we were sceptical. So we arranged an interview between the footballer and the man supposed to bride him. When we saw him together we guessed from the footballer’s body language that he was not telling the truth. So we wrote an article suggesting he was guilty. It was a dilemma because the footballer could have demanded damages if we were wrong. He tried to stop us publishing it but later we were proved right.

ZY: Wow! That was a real “scoop”. I’m looking forward to my first assignment now. Perhaps I’l l get a scoop too！

HX: Perhaps you will. You never know.

GETTINH THE “SCOOP”

“Quick,” said the editor. “Get that story ready. We need it in this edition to be ahead of the other newspapers. This is a scoop.” Zhou Yang had just come back into the office after an interview with a famous film star. “Did he really do that” asked someone from the International News Department. “Yes, I’m afraid he did,” Zhou Yang answered. He set to work.

His first task was to write his story, but he had to do it carefully. Although he realized the man had been lying, Zhou Yang knew he must not accuse him directly. He would have to be accurate. Concise too! He knew how to do that. Months of training had taught him to write with no wasted words or phrases. He sat down at his computer and began to work.

The first person who saw his article was a senior editor from his department. He checked the evidence, read the article and passed it on to the copy-editor. She began to edit the piece and design the main headline and smaller heading, “This will look very good

on the page,” she said. “Where is a good picture of this man” Then as the article was going to be written in English Zhou Yang also took a copy to the native speaker employed by the newspaper to polish the style. She was also ver y happy with Zhou Yang’s story. “You are really able to write a good front page article,” she said, Zhou Yang smiled with happiness. Last of all, the chief editor read it and approved it. “Well done,” he said to Zhou Yang. “But please show me your evidence so we’re sure we’ve got our facts straight.” “I’ll bring it to you immediately,”said Zhou Yang excitedly.

The news desk editor took the story and began to work on all the stories and photos until all the pages were set. All the information was then ready to be processed into film negatives. This was the first stage of the printing process. They needed four negatives, as several colours were going to be used on the story. Each of the main colours had one negative sheet and when they were combined they made a coloured age for the newspaper. After one last check the page was ready to be printed. Zhou Yang waited excitedly for the first copies to be ready. “Wait till tonight,” his friend whispered. “I expect there will be something about this on the television news. A real scoop！”

Unit 5 FIRST AID

FIRST AID FOR BURNS

The skin is an essential part of your body and its largest organ. You have three layers of skin which act as a barrier against disease, poisons and the sun’s harmful rays. The functions of your ski n are also very complex: it keeps you warm or cool; it prevents your body from loosing too much water; it is where you feel cool, heat or pain and it gives you your sense of touch. So as you can imagine, if your skin gets burnt it can be very serious. First aid is a very important first step in the treatment of burns.

Causes of burns

you can get burnt by a variety of things: hot liquids, steam, fire, radiation (by being close to heat or fire, etc), the sun, electricity or chemicals.

Types of burns

There are three types of burns. Burns are called first, second or third degree burns, depending on which layers of the skin are burned.

First degree burns

These affect only the top layer of the skin. These burns are not serious and should feel better within a day or two. Examples

include mild sunburn and burns caused by touching a hot pan, stove or iron for a moment.

Second degree burns

These affect both the top and the second layer of the skin. These burns are serious and take a few weeks to heal. Examples include severe sunburn and burns caused by hot liquids.

Three degree burns

These affect all three layers of the skin and any tissue and organs under the skin. Examples include burns caused by electric shocks, burning clothes, or severe petrol fires. These burns cause very severe injuries and the victim must go to hospital at once.

Characteristic of burns

First degree burns

dry, red and mildly swollen

mildly painful

turn white when pressed

Second degree burns

rough, red and swollen

blisters

watery surface

extremely painful

Three degree burns

black and white and charred

swollen; often tissue under them can be seen

little or no pain if nerves are damaged; may be pain around edge of injured area.

First aid treatment

1 Remove clothing using scissors if necessary unless it is stuck to the burn. Take off other clothing and jewellery near the burn.

2 Cool burns immediately with cool but not icy water. It is best to place burns under gently running water for about 10 minutes. (The cool water stops the burning process, prevents the pain becoming unbearable and reduces swelling.) Do not put cold water on third degree burns.

3 For first degree burns, place cool, clean, wet cloths on them until the pain is not so bad. For second degrees burns, keep cloths cool by putting them back in a basin of cold water, squeezing them out

人教版高中英语必修五电子课本

按住Ctrl键单击鼠标打开配套教学视频名师讲课播放 必修5 Unit 1 JOHH SHOW DEFEATS “KING CHOLERA” John Snow was a famous doctor in London - so expert, indeed, that he attend ed Queen Victoria as her personal physician. But he became inspired when he tho ught about helping ordinary people exposed to cholera. This was the deadly dise ase of its day. Neither its cause nor its cure was understood. So many thousand s of terrified people died every time there was an outbreak. John Snow wanted t o face the challenge and solve this problem. He knew that cholera would never b e controlled until its cause was found. He became interested in two theories that possibly explained how cholera ki lled people. The first suggested that cholera multiplied in the air. A cloud of dangerous gas floated around until it found its victims. The second suggested that people absorbed this disease into their bodies with their meals. From the stomach the disease quickly attacked the body and soon the affected person die d. John Snow suspected that the second theory was correct but he needed eviden ce. So when another outbreak hit London in 1854, he was ready to begin his enqu iry. As the disease spread quickly through poor neighbourhoods, he began to gat her information. In two particular streets, the cholera outbreak was so severe that more than 500 people died in ten days. He was determined to find out why. First he marked on a map the exact places where all the dead people had liv ed. This gave him a valuable clue about the cause of the disease. Many of the d eaths were near the water pump in Broad Street (especially numbers 16, 37, 38 a nd 40). He also noticed that some houses (such as 20 and 21 Broad Street and 8 and 9 Cambridge Street) had had no deaths. He had not foreseen this, so he made further investigations. He discovered that these people worked in the pub at 7 Cambridge Street. They had been given free beer and so had not drunk the water from the pump. It seemed that the water was to blame. Next, John Snow looked into the source of the water for these two streets. He found that it came from the river polluted by the dirty water from London. H e immediately told the astonished people in Broad Street to remove the handle f rom the pump so that it could not be used. Soon afterwards the disease slowed d own. He had shown that cholera was spread by germs and not in a cloud of gas. In another part of London, he found supporting evidence from two other deat hs that were linked to the Broad Street outbreak. A woman, who had moved away f rom Broad Street, liked the water from the pump so much that she had it deliver ed to her house every day. Both she and her daughter died of cholera after drin king the water. With this extra evidence John Snow was able to announce with ce rtainty that polluted water carried the virus.

人教版英语必修五第二单元课文翻译

PUZZLES IN GEOGRAPHY 地理之谜 人们也许觉得奇怪，为什么用来描述英格兰、威尔士、苏格兰和北爱尔兰这四个国家的词语不太一样。但如果你学过英国历史，就能弄清楚这个问题。 首先是英格兰。威尔士于13世纪同英格兰联合了起来。如今只要有人提起英格兰，你就会发现威尔士总是包括在内的。接着，英格兰、威尔士同苏格兰于17世纪联合了起来，名字就改成了“大不列颠”。令人庆幸的是，当苏格兰的詹姆斯国王成为英格兰和威尔士的国王时，这三个国家和平地实现了联合。最后，英国政府打算于20世纪初把爱尔兰也同另外三个国家和平联合起来以形成联合王国。然而，爱尔兰的南部却不愿组建联合王国，它分离出去，并建立了自己的政府。因此只有北爱尔兰同英格兰、威尔士、苏格兰联合起来，而组成了联合王国，这一点从新的联合王国国旗上就可以看得出来。 值得赞扬的是，这四个国家的确在一些方面共同合作，例如在货币和国际关系方面;但是有些制度仍然区别很大。例如，北爱尔兰、英格兰和苏格兰在教育体制和立法体制上都存在着差异。在参加像世界杯之类的比赛时，它们有着各自的足球队。在这四个国家中，英格兰是最大的。为了方便起见，它大致可以划分为三个地区。最靠近法国的那个地区叫做英格兰南部，中部地区叫做英格兰中部，最靠近苏格兰的那个地区叫做英格兰北部。你可以看到英国的大部分人口聚居在南部，而多数大工业城市都位于中部和北部。尽管，英国任何一个城市都不像中国的城市那样大，但是他们都有着自己的享有威名的足球队，有的城市甚至还有两个队。很遗憾，这些建于19世纪的工业城市对游客并没有吸引力。要找历史性建筑你得去更古老的、比较小些的由古罗马人建造的城镇。在那儿你才可能找到更多的有关英国历史和文化的东西。 最具历史意义的宝地是伦敦。那儿有博物馆，有艺术珍品、剧院、公园和各种建筑物。它是全国的政治中心。它有公元一世纪由罗马人建造的最古老的港口，有由盎格鲁——撒

人教版 英语 必修五 课文 电子版

U n i t1G R E A T S C I E N T I S T S JOHN SNOW DEFEATS “KING CHOLERA” John Snow was a famous doctor in London — so expert, indeed, that he attended Queen Victoria as her personal physician. But he became inspired when he thought about helping ordinary people exposed to cholera. This was the deadly disease of its day. Neither its cause nor its cure was understood. So many thousands of terrified people died every time there was an outbreak. John Snow wanted to face the challenge and solve this problem. He knew that cholera would never be controlled until its cause was found. He became interested in two theories that possibly explained how cholera killed people. The first suggested that cholera multiplied in the air, a cloud of dangerous gas floated around until it found its victims. From the stomach the disease quickly attacked the body and soon the affected person died. John Snow suspected that the second theory was correct but he needed evidence. So when another outbreak hit London in 1854, he was ready to begin his enquiry. As the disease spread quickly through poor neighbourhoods, he began to gather information. In two particular streets, the cholera outbreak was so severe that more than 500 people died in ten days. He was determined to find out why. First he marked on a map the exact places where all the dead people have lived. This gave him a valuable clue about the cause of the disease. Many of the deaths were near the water pump in Broad Street (especially numbers 163738 and 40). He also noticed that some houses (such as 20 and 21 Broad Street and 8 and 9 Cambridge Street) had had no deaths. He had not foreseen this, so he made further investigations. He discovered that these people worked in the pub at 7 Cambridge Street. They had been given free beer and so had not drunk the water from the pump. It seemed that the water was to blame, Next, John Snow looked into the source of the water for these two streets. He found that it came from the river polluted by the dirty water from London. He immediately told the astonished people in Broad Street to remove the handle from the pump so that it could not be used. Soon afterwards the disease slowed down. He had shown that cholera was spread by germs and not in a cloud of gas. In another part of London, he found supporting evidence from two other deaths that were linked to the Broad Street outbreak. A woman, who had moved away from Broad Street, liked the water from the pump so much that she had it delivered to her house every day. Both she and her daughter died of cholera after drinking the water. With this extra evidence John Snow was able to announce with certainty that polluted water carried the virus. To prevent this from happening again, John Snow suggested that the source of all the water supplies be examined. The water companies were instructed not to expose people to polluted water any more. Finally “King Cholera” was defeated.

高中英语必修五课文及翻译

高中英语必修五课文及翻 译 Final approval draft on November 22, 2020

-必修 5 Unit 2 The United Kingdom Reading PUZZLES IN GEOGRAPHY People may wonder why different words are used to describe these four countries: England, Wales, Scotland and Northern Ireland. You can clarify this question if you study British history. First there was England. Wales was linked to it in the thirteenth century. Now when people refer to England you find Wales included as well. Next England and Wales were joined to Scotland in the seventeenth century and the name was changed to "Great Britain". Happily this was accomplished without conflict when King James of Scotland became King of England and Wales as well. Finally the English government tried in the early twentieth century to form the United Kingdom by getting Ireland connected in the same peaceful way. However, the southern part of Ireland was unwilling and broke away to form its own government. So only Northern Ireland joined with England, Wales and Scotland to become the United Kingdom and this was shown to the world in a new flag called the Union Jack. To their credit the four countries do work together in some areas (eg, the currency and international relations), but they still have very different institutions. For example, Northern Ireland, England and Scotland have different educational and legal systems as well as different football teams for competitions like the World Cup! England is the largest of the four countries, and for convenience it is divided roughly into three zones. The zone nearest France is called the South of England, the middle zone is called the Midlands and the one nearest to Scotland is known as the North. You find most of the population settled in the south, but most of the industrial cities in the Midlands and the North of England. Although, nationwide, these cities are not as large as those in China, they have world-famous football teams and some of them even have two! It is a pity that the industrial cities built in the nineteenth century do not attract visitors. For historical architecture you have to go to older but smaller towns built by the Romans. There you will find out more about British history and culture. The greatest historical treasure of all is London with its museums, art collections, theatres, parks and buildings. It is the centre of national

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寻找解决的方法 你喜欢谜题吗?欧拉确实。你有没有解决一个你听到的听力任务?不!嗯,别担心,欧拉也一样!因为他热爱数学难题,他想知道为什么这一 不工作。所以他绕着小镇,在桥梁的K6nigsberg好几次。令他吃惊的是,他发现,他可以穿过六座桥在不走两次或回头路的自己(见图3),但是他却不能穿过所有的七座。他只需要知道为什么。所以他决定看这个问题的另一种方式。 他把自己的照片和七个桥镇像上面。他标志着土地和桥梁。然后他把一个点或点为中心的每个地区的土地。他加入了这些点在一起使用曲线去在桥梁(请参阅图1)。他注意到一些分有三行去他们(A,B和C)和一个有五个(D)。他想这是否重要,为什么这个难题将不会工作。三加五是奇数他称他们为“奇怪的”点。让他带走了谜清晰桥梁看到模式更明显(见图2)。 他想知道是否这个难题将工作如果他带一个桥走(如图3)。这一次的图是简单的(如图4),他数了数行去点A,B,C和d .这一次他们是不同的。两人都多的行(B有两个和D有四个)。两个和四个都是偶数所以欧拉称他们为“甚至”点。两个点在图4有一个奇怪的行数将他们(A 和C都有三个),所以他称他们为“奇怪的”点。 使用这个新的图欧拉开始在A点,沿着直线到B,然后C .然后他跟着曲线通过D和回A .最后他跟着其他曲线从背部D C,他通过完成模式。这一次它的工作。他已经能够超过图访问每个点但不会超过任何线两次或提升他的铅笔从页面。欧拉变得非常兴奋。现在他知道一些奇怪

的点是拼图的关键。但是,您仍然需要一些甚至点你的图,如果你想要它来工作。所以欧拉寻找一个一般规则: 如果一个图有超过两个奇怪的点,你不能超过它没有提升你的铅笔从页面或去在一线的两倍。 很快他去他的课本找到一些更多的数据。他看了看四个图表所示,发现当他利用他的统治,他可以告诉他是否可以在整个图没有采取他的铅笔从纸。他喜出望外。他不知道,但他的小难题已经开始一个全新的数学分支叫做“拓扑”。在他的荣誉这个谜题是“寻找的欧拉路径”。