VOA慢速英语 2008 0109a
时间：2019-01-11 作者：英语课 分类：VOA慢速英语2008年（一）月
This is the VOA Special English Health Report.
Chronic 1 obstructive pulmonary disease, or C.O.P.D., affects more than two hundred million people around the world. The World Health Organization says at least five million people died from it in two thousand five. Ninety percent were in developing countries.
Smoking is the top cause of C.O.P.D.
In the United States, C.O.P.D. is the fourth leading cause of death. But even with these numbers, many people have never heard of it.
The Canadian Lung Association Web site explains that C.O.P.D. is the new name for emphysema and chronic bronchitis. These are the two most common forms of it, and many people with C.O.P.D. have both of them.
The result is progressive and incurable 2 lung damage. The tubes that carry air in and out of the lungs become partly blocked. This makes it difficult to breathe and often produces a cough that will not go away.
People with C.O.P.D. often have swelling 3 that causes the airways 4 to narrow. And they often produce more mucus than normal. This oily substance protects the airways, but too much of it blocks them.
Smoking is the most common cause of C.O.P.D. Nonsmokers can get the disease from breathing other people's tobacco smoke.
Air pollution can also cause the disease. Miners and others who work around some kinds of dust and chemicals are at higher risk. And children who repeatedly suffer lung infections have a greater chance of developing the disease as adults. Genetics may also play a part.
Doctors can perform a quick breathing test with a machine called a spirometer that can help diagnose C.O.P.D. But experts say people are often not tested or treated correctly for chronic obstructive pulmonary disease.
Patients may not consider a continuous cough serious enough to seek medical attention. Or doctors may misdiagnose it as asthma 5 or another infection.
Some of the early warning signs are a cough that will not go away and an increase in mucus production. Another sign is difficulty breathing after minor 6 activity like walking up stairs.
There are ways to slow the progress of the disease. Doctors say the most important thing is to stop smoking. There are medicines that can reduce inflammation and open air passages. Also, exercise is often advised. If the disease is severe, a doctor may order oxygen treatment or even operations to remove damaged lung tissue.
And that’s the VOA Special English Health Report, written by Caty Weaver 7.
- Famine differs from chronic malnutrition.饥荒不同于慢性营养不良。
- Chronic poisoning may lead to death from inanition.慢性中毒也可能由虚弱导致死亡。
- All three babies were born with an incurable heart condition.三个婴儿都有不可治瘉的先天性心脏病。
- He has an incurable and widespread nepotism.他们有不可救药的，到处蔓延的裙带主义。
- Use ice to reduce the swelling. 用冰敷消肿。
- There is a marked swelling of the lymph nodes. 淋巴结处有明显的肿块。
- The giant jets that increasingly dominate the world's airways. 越来越称雄于世界航线的巨型喷气机。
- At one point the company bought from Nippon Airways a 727 jet. 有一次公司从日本航空公司买了一架727型喷气机。
- I think he's having an asthma attack.我想他现在是哮喘病发作了。
- Its presence in allergic asthma is well known.它在过敏性气喘中的存在是大家很熟悉的。
- The young actor was given a minor part in the new play.年轻的男演员在这出新戏里被分派担任一个小角色。
- I gave him a minor share of my wealth.我把小部分财产给了他。