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1、【精品文檔】如有侵權(quán),請(qǐng)聯(lián)系網(wǎng)站刪除,僅供學(xué)習(xí)與交流英語(yǔ)必修五課文.精品文檔.必修五Unit1JOHH 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
2、 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
3、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. The sec
4、ond 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 died. John Snow suspected that the second theory was correct but he needed evidence.
5、 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 f
6、ind out why. First he marked on a map the exact places where all the dead people had 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 16, 37, 38 and 40
7、). 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 drun
8、k 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 astonishe
9、d 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 suppor
10、ting 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 extr
11、a 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 n
12、ot to expose people to polluted water any more. Finally "King Cholera" was defeated.Unit2PUZZLES IN GEOGRAPHY People may wonder why different words are used to describe these four countries: England, Wales, Scotland and Northern Ireland. You can cl
13、arify 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 c
14、entury 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 connect
15、ed 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.
16、160; 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
17、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 cal
18、led 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 foot
19、ball 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.
20、 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 buil
21、ding begun by the Anglo-Saxons in the 1060s and the oldest castle constructed by later Norman rulers in 1066. There has 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
22、, 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
23、must keep your eyes open if you are going to make your trip to the United Kingdom enjoyable and worthwhile.Unit3FIRST IMPRESSIONS Spacemall: liqiang299AGreatAdventureSpaceS 15/11/3008 (Earthtime)
24、0; Dear Mum and Dad, I still cannot believe that I am taking up this 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 lag”. This is simil
25、ar 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, Wang Ping, was very understanding and gave me some green tablets which helped a lot. Well-known for their expe
26、rtise, his parents' company, called "Future Tours", transported 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
27、. 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. Wha
28、t would I find? At first my new surroundings were difficult to tolerate. The air seemed thin, as though its combination of gases had little oxygen left. Hit by a lack of fresh air, my head ached. Just as I tried to make the necessary adjustment t
29、o this new situation, Wang Ping 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 t
30、o 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. Wang Ping fastened my safety belt and showed me how to use it. Soon I could fly as fast as him. However, I lost sight of Wang Ping when we reac
31、hed 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 th
32、e future of what was still my hometown! Then I caught sight of Wang Ping 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 t
33、he wall moved - it was made of trees! I found later that their leaves provided the room with much-needed oxygen. Then Wang Ping 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. "Y
34、ou may find 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
35、meal and a hot bath. Exhausted, I slid into bed and fell fast asleep. More news later from your loving son, Li QiangUnit5 FIRST AID FOR BURNS
36、60; 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 skin are also very complex: it keeps you warm or cool; it prevents your body from losi
37、ng too much water; it is where you feel cold, heat or pain and it gives you your sense of touch. So as you can imagine, if your skin gets burned it can be very serious. First aid is a very important first step in the treatment of bums.Causes of burns Y
38、ou can get burned by a variety of things: hot liquids, steam, fire, radiation (by being close to high 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 bu
39、rns, depending onwhich 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
40、 a mordent. Second degree burns These affect both the top and the second layer of the skin. These bums are serious and take a few weeks to heal. Examples include severe sunburn and bums caused by hot liquids. Third degree burns These affect all three layers of the skin and any tiss
41、ue 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.Characteristics of burnsFirst degree burns &
42、#160; dry, red and mildly swollen
43、160; mildly painful turn white when pressedSecond degree burns
44、160; rough, red and swollen
45、blisters watery surface
46、 extremely painfulThird degree burns black and white and charred
47、 swollen; often tissue under them can be seen
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