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英文杂志-Tobacco

时间:2015-05-26 08:34来源:互联网 提供网友:mapleleaf   字体: [ ]
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  Tobacco

  by Claire Powell and Dave Collett

  What’s in a cigarette? What’s in a puff1?

  Tobacco smoke contains about 4,000 chemicals. Some of which are harmful, others deadly. Here are three of the deadliest.

  Tar2

  Tar, a mixture of chemicals such as formaldehyde, arsenic3 and cyanide, can cause serious lung diseases. Seventy percent of the tar from tobacco smoke remains4 in the smoker’s lungs.

  Nicotine5

  Many people are unaware6 that nicotine is more addictive7 than heroine. A powerful and fast-acting drug, nicotine reaches the brain in about seven seconds. One of the major effects of nicotine is an increased heart rate and blood pressure.

  Carbon monoxide

  Carbon monoxide is a poisonous gas formed when a cigarette is lit. The red blood cells absorb the gas more easily than oxygen, so up to fifteen percent of a smoker’s blood may be carrying carbon monoxide instead of oxygen. Breathing becomes more difficult because the heart has to work harder to pump less oxygen around the body.

  From seed to smoke

  What do tomatoes and tobacco have in common? They are both a member of the same botanical family. Tobacco is grown in more than one hundred countries with China being the largest producer, closely followed by the USA. Tobacco can grow well in poorer soils so a typical farmer can expect a good income from planting this crop.

  Seeds and fertiliser are often provided by British American Tobacco. The seeds are so small that they must be protected in seedbeds for sixty days before transplanting to the field. Two weeks later, soil is carefully pushed up against the seedlings9 to further protect them and help to develop a good root system. Finally, after a couple of months, the flowering plants and some of the upper leaves are cut to allow more growth in the remaining leaves. The crop gradually grows towards the harvesting stage.

  Harvest

  In most countries harvesting is done by hand. The farmer takes off a few leaves from the lower part of each plant. A typical farmer can expect to harvest about 15,000 plants. This is quite a lot considering each plant contains around 22 leaves.

  Curing

  There are four main methods.

  Air-cured tobacco is hung in unheated, ventilated barns until the tobacco dries and the tobacco leaf becomes a light to medium brown colour.

  Flue-cured tobacco is made when heat is introduced into a barn through pipes from a furnace outside. The leaves are heated until they turn yellow.

  Sun-cured tobacco leaves are hung out on racks and exposed to the sun’s rays. The direct heat turns the leaves a yellow to orange colour.

  For fire curing, wood is burnt under the tobacco leaves, which dries the tobacco and produces a smoky fragrance10.

  Processing

  There are four stages in processing. Dirt is removed from the cured tobacco. The leaf is separated from the stem (a process known as threshing). The moisture content is checked carefully. The processed tobacco is packed into 200kg cardboard boxes, for shipping11 to manufacturing sites.

  Manufacturing

  At the factory, the matured tobacco is checked for quality and then carefully blended with other ingredients which are needed for the brand recipe, such as flavourings.

  Moisture content is crucial. Too dry and the tobacco leaf will crumble12; too moist and it may spoil during storage. The blended tobacco is treated with just the right amount of steam and water to make it supple13, and then cut into the form in which it appears in the cigarette. The cut tobacco is then given a quality check.

  Cigarette making, once done entirely14 by hand, is today almost fully8 automated15 with the cut tobacco, cigarette paper and filters continuously fed into the cigarette-making machines.

  Packing machines put the cigarettes into the familiar brand packs, wrap the packs in protective film and group them into cartons and cases. The completed cases, time-dated to ensure the freshest product possible, are then ready for distribution.


点击收听单词发音收听单词发音  

1 puff y0cz8     
n.一口(气);一阵(风);v.喷气,喘气
参考例句:
  • He took a puff at his cigarette.他吸了一口香烟。
  • They tried their best to puff the book they published.他们尽力吹捧他们出版的书。
2 tar 1qOwD     
n.柏油,焦油;vt.涂或浇柏油/焦油于
参考例句:
  • The roof was covered with tar.屋顶涂抹了一层沥青。
  • We use tar to make roads.我们用沥青铺路。
3 arsenic 2vSz4     
n.砒霜,砷;adj.砷的
参考例句:
  • His wife poisoned him with arsenic.他的妻子用砒霜把他毒死了。
  • Arsenic is a poison.砒霜是毒药。
4 remains 1kMzTy     
n.剩余物,残留物;遗体,遗迹
参考例句:
  • He ate the remains of food hungrily.他狼吞虎咽地吃剩余的食物。
  • The remains of the meal were fed to the dog.残羹剩饭喂狗了。
5 nicotine QGoxJ     
n.(化)尼古丁,烟碱
参考例句:
  • Many smokers who are chemically addicted to nicotine cannot cut down easily.许多有尼古丁瘾的抽烟人不容易把烟戒掉。
  • Many smokers who are chemically addicted to nicotine cannot cut down easily.许多有尼古丁瘾的抽烟人不容易把烟戒掉。
6 unaware Pl6w0     
a.不知道的,未意识到的
参考例句:
  • They were unaware that war was near. 他们不知道战争即将爆发。
  • I was unaware of the man's presence. 我没有察觉到那人在场。
7 addictive hJbyL     
adj.(吸毒等)使成瘾的,成为习惯的
参考例句:
  • The problem with video game is that they're addictive.电子游戏机的问题在于它们会使人上瘾。
  • Cigarettes are highly addictive.香烟很容易使人上瘾。
8 fully Gfuzd     
adv.完全地,全部地,彻底地;充分地
参考例句:
  • The doctor asked me to breathe in,then to breathe out fully.医生让我先吸气,然后全部呼出。
  • They soon became fully integrated into the local community.他们很快就完全融入了当地人的圈子。
9 seedlings b277b580afbd0e829dcc6bdb776b4a06     
n.刚出芽的幼苗( seedling的名词复数 )
参考例句:
  • Ninety-five per cent of the new seedlings have survived. 新栽的树苗95%都已成活。 来自《现代汉英综合大词典》
  • In such wet weather we must prevent the seedlings from rotting. 这样的阴雨天要防止烂秧。 来自《现代汉英综合大词典》
10 fragrance 66ryn     
n.芬芳,香味,香气
参考例句:
  • The apple blossoms filled the air with their fragrance.苹果花使空气充满香味。
  • The fragrance of lavender filled the room.房间里充满了薰衣草的香味。
11 shipping WESyg     
n.船运(发货,运输,乘船)
参考例句:
  • We struck a bargain with an American shipping firm.我们和一家美国船运公司谈成了一笔生意。
  • There's a shipping charge of £5 added to the price.价格之外另加五英镑运输费。
12 crumble 7nRzv     
vi.碎裂,崩溃;vt.弄碎,摧毁
参考例句:
  • Opposition more or less crumbled away.反对势力差不多都瓦解了。
  • Even if the seas go dry and rocks crumble,my will will remain firm.纵然海枯石烂,意志永不动摇。
13 supple Hrhwt     
adj.柔软的,易弯的,逢迎的,顺从的,灵活的;vt.使柔软,使柔顺,使顺从;vi.变柔软,变柔顺
参考例句:
  • She gets along well with people because of her supple nature.她与大家相处很好,因为她的天性柔和。
  • He admired the graceful and supple movements of the dancers.他赞扬了舞蹈演员优雅灵巧的舞姿。
14 entirely entirely     
ad.全部地,完整地;完全地,彻底地
参考例句:
  • The fire was entirely caused by their neglect of duty. 那场火灾完全是由于他们失职而引起的。
  • His life was entirely given up to the educational work. 他的一生统统献给了教育工作。
15 automated fybzf9     
a.自动化的
参考例句:
  • The entire manufacturing process has been automated. 整个生产过程已自动化。
  • Automated Highway System (AHS) is recently regarded as one subsystem of Intelligent Transport System (ITS). 近年来自动公路系统(Automated Highway System,AHS),作为智能运输系统的子系统之一越来越受到重视。
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TAG标签:   英文杂志
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