VOA慢速英语 200707110041
时间：2018-12-15 作者：英语课 分类：VOA慢速英语2007年（七）月
英语课
This is the VOA Special English Health Report.
An allergy 1 is an unusually strong reaction to a substance. Many things can cause allergies 2. The most common cause is pollen 3. Trees usually produce pollen in the spring, grasses in the summer and weeds in the fall as part of their reproductive process.
Seasonal 4 allergies are the most common kind
Other causes include organisms such as dust mites 5 and molds. Chemicals, plants and dead skin particles from dogs and cats can also cause allergic 6 reactions. So can insect stings and some foods.
The most common kind of allergic reaction is itchy, watery 7 eyes and a blocked or watery nose. Allergies can also cause red, itchy skin. Some reactions can be life-threatening -- for example, when breathing passages become blocked.
Avoiding whatever causes an allergy may not always be easy. Antihistamine 8 drugs may offer an effective treatment. Another treatment used in some cases is called immunotherapy. A patient is injected with small amounts of the allergy-causing substance. The idea is that larger and larger amounts are given over time until the patient develops a resistance to the allergen.
In the United States, experts estimate that up to four percent of adults and up to eight percent of young children have food allergies. Every year these allergies cause about thirty thousand cases of anaphylaxis, a severe reaction that requires immediate 9 treatment.
It can result in trouble breathing and in some cases death. The National Institute of Allergy and Infectious Diseases says one hundred to two hundred people die. It says most of the reactions are caused by peanuts and tree nuts such as walnuts 10.
People can also be allergic to medicines. The American Academy of Allergy, Asthma 11 and Immunology says about five to ten percent of bad reactions to commonly used medicines are allergic. In other words, a person's immune system overreacts and produces an allergic reaction. The most common reactions include skin rashes, itching 12, breathing problems and swelling 13 in areas such as the face.
But the academy estimates that allergic reactions to drugs cause one hundred six thousand deaths each year in the United States alone. It says antibiotics 14 such as penicillin 15 are among the drugs more likely than others to produce allergic reactions. So are anticonvulsants and hormones 16 such as insulin. Other kinds include some anesthesia medicines, vaccines 17 and biotechnology-produced proteins.
And that's the VOA Special English Health Report, written by Mario Ritter and Caty Weaver 18. I'm Steve Ember.
An allergy 1 is an unusually strong reaction to a substance. Many things can cause allergies 2. The most common cause is pollen 3. Trees usually produce pollen in the spring, grasses in the summer and weeds in the fall as part of their reproductive process.
Seasonal 4 allergies are the most common kind
Other causes include organisms such as dust mites 5 and molds. Chemicals, plants and dead skin particles from dogs and cats can also cause allergic 6 reactions. So can insect stings and some foods.
The most common kind of allergic reaction is itchy, watery 7 eyes and a blocked or watery nose. Allergies can also cause red, itchy skin. Some reactions can be life-threatening -- for example, when breathing passages become blocked.
Avoiding whatever causes an allergy may not always be easy. Antihistamine 8 drugs may offer an effective treatment. Another treatment used in some cases is called immunotherapy. A patient is injected with small amounts of the allergy-causing substance. The idea is that larger and larger amounts are given over time until the patient develops a resistance to the allergen.
In the United States, experts estimate that up to four percent of adults and up to eight percent of young children have food allergies. Every year these allergies cause about thirty thousand cases of anaphylaxis, a severe reaction that requires immediate 9 treatment.
It can result in trouble breathing and in some cases death. The National Institute of Allergy and Infectious Diseases says one hundred to two hundred people die. It says most of the reactions are caused by peanuts and tree nuts such as walnuts 10.
People can also be allergic to medicines. The American Academy of Allergy, Asthma 11 and Immunology says about five to ten percent of bad reactions to commonly used medicines are allergic. In other words, a person's immune system overreacts and produces an allergic reaction. The most common reactions include skin rashes, itching 12, breathing problems and swelling 13 in areas such as the face.
But the academy estimates that allergic reactions to drugs cause one hundred six thousand deaths each year in the United States alone. It says antibiotics 14 such as penicillin 15 are among the drugs more likely than others to produce allergic reactions. So are anticonvulsants and hormones 16 such as insulin. Other kinds include some anesthesia medicines, vaccines 17 and biotechnology-produced proteins.
And that's the VOA Special English Health Report, written by Mario Ritter and Caty Weaver 18. I'm Steve Ember.
1 allergy
n.(因食物、药物等而引起的)过敏症
- He developed an allergy to pollen.他对花粉过敏。
- The patient had an allergy to penicillin.该患者对青霉素过敏。
2 allergies
n.[医]过敏症；[口]厌恶，反感；（对食物、花粉、虫咬等的）过敏症( allergy的名词复数 )；变态反应，变应性
- Food allergies can result in an enormous variety of different symptoms. 食物过敏会引发很多不同的症状。 来自辞典例句
- Let us, however, examine one of the most common allergies; hayfever. 现在让我们来看看最常见的变态反应的一种--枯草热。 来自辞典例句
3 pollen
n.[植]花粉
- Hummingbirds have discovered that nectar and pollen are very nutritious.蜂鸟发现花蜜和花粉是很有营养的。
- He developed an allergy to pollen.他对花粉过敏。
4 seasonal
adj.季节的，季节性的
- The town relies on the seasonal tourist industry for jobs.这个城镇依靠季节性旅游业提供就业机会。
- The hors d'oeuvre is seasonal vegetables.餐前小吃是应时蔬菜。
5 mites
n.（尤指令人怜悯的）小孩( mite的名词复数 )；一点点；一文钱；螨
- The only discovered animals are water bears, mites, microscopic rotifers. 能够发现的动物只有海蜘蛛、螨和微小的轮虫。 来自辞典例句
- Mites are frequently found on eggs. 螨会经常出现在蛋上。 来自辞典例句
6 allergic
adj.过敏的，变态的
- Alice is allergic to the fur of cats.艾丽斯对猫的皮毛过敏。
- Many people are allergic to airborne pollutants such as pollen.许多人对空气传播的污染物过敏，比如花粉。
7 watery
adj.有水的，水汪汪的；湿的，湿润的
- In his watery eyes there is an expression of distrust.他那含泪的眼睛流露出惊惶失措的神情。
- Her eyes became watery because of the smoke.因为烟熏，她的双眼变得泪汪汪的。
8 antihistamine
n.抗组胺剂
- Taking an antihistamine isn't the only way to battle seasonal allergies.采取抗组织胺并不是唯一防止季节性过敏的方法。
- Antihistamine drugs may offer an effective treatment.抗组胺剂药物可以提供比较有效的治疗。
9 immediate
adj.立即的；直接的，最接近的；紧靠的
- His immediate neighbours felt it their duty to call.他的近邻认为他们有责任去拜访。
- We declared ourselves for the immediate convocation of the meeting.我们主张立即召开这个会议。
10 walnuts
胡桃（树）( walnut的名词复数 )； 胡桃木
- Are there walnuts in this sauce? 这沙司里面有核桃吗？
- We ate eggs and bacon, pickled walnuts and cheese. 我们吃鸡蛋，火腿，腌胡桃仁和干酪。
11 asthma
n.气喘病，哮喘病
- 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。
12 itching
adj.贪得的，痒的，渴望的v.发痒( itch的现在分词 )
- The itching was almost more than he could stand. 他痒得几乎忍不住了。 来自《现代汉英综合大词典》
- My nose is itching. 我的鼻子发痒。 来自《简明英汉词典》
13 swelling
n.肿胀
- 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。
14 antibiotics
n.（用作复数）抗生素；（用作单数）抗生物质的研究；抗生素，抗菌素( antibiotic的名词复数 )
- the discovery of antibiotics in the 20th century 20世纪抗生素的发现
- The doctor gave me a prescription for antibiotics. 医生给我开了抗生素。
15 penicillin
n.青霉素，盘尼西林
- I should have asked him for a shot of penicillin.我应当让他给我打一针青霉素的。
- Penicillin was an extremely significant medical discovery.青霉素是极其重要的医学发现。