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美国英语听力80篇3 Lesson55

时间:2011-04-01 03:44来源:互联网 提供网友:dr8201   字体: [ ]
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[00:07.05]The World Health Organization says about 600,000-- 300 babies got H-I-V,
[00:15.39]the virus that causes AIDS, from their mothers in 1998.
[00:20.48]It says 90% of those babies were in African countries south of the Sahara Desert.
[00:28.71]Did those babies have the virus at birth?
[00:32.03]Or did they become infected later in life?
[00:36.05]A new study says breast-feeding is a major cause of H-I-V in African babies.
[00:44.28]It was published in the Journal1 of the American Medical Association2.
[00:50.13]The study was led by Ruth Nduati of the University of Nairobi in Kenya.
[00:57.18]She had help from researchers from the University of Seattle in the American state of Washington.
[01:04.55]The researchers divided 800 H-I-V infected Kenyan mothers into two groups.
[01:13.04]One group breast-fed their new babies.
[01:16.43]The other women fed their babies a liquid baby food called formula3.
[01:22.39]Ninety of the babies became infected with H-I-V.
[01:27.80]The rate of infection was two times higher among the breast-fed babies than among the others.
[01:35.40]The researchers also found that infection from breast milk often happens within the first few months of the baby's life.
[01:45.82]However, the study shows that reducing the AIDS virus in babies is not as simple as changing from breast-feeding to formula.
[01:56.64]The researchers found that after two years, the death rate of the babies in the two groups was the same-about 20%.
[02:07.87]Mary Glenn Fowler works4 for the United States Centers for Disease5 Control.
[02:14.43]She says African babies who are not breast-fed have other risks.
[02:20.77]She says baby formula needs to be mixed with water.
[02:25.97]In many poor countries, water is unsafe to drink.
[02:30.83]It can lead to deadly diarrhea in babies.
[02:34.91]She also notes that breast-feeding is traditional in African countries.
[02:41.15]Doctor Fowler thinks infected women should be given drugs that fight the AIDS virus
[02:48.33]while they are pregnant6 and not breast-feed their babies.
[02:52.56]She says the anti-AIDS drugs also would offer some protection to babies who are breast-fed.
[03:00.64]But, Doctor Nduati says public health officials must do more than that.
[03:07.74]She says one in every three to four pregnant women has H-I-V in African cities south of the Sahara.


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1 journal g3Ex2     
n.日志,日记;议事录;日记帐;杂志,定期刊物
参考例句:
  • He kept a journal during his visit to Japan.他在访问日本期间坚持记日记。
  • He got a job as editor of a trade journal.他找到了一份当商业杂志编辑的工作。
2 association 6O1yp     
n.联盟,协会,社团;交往,联合;联想
参考例句:
  • Our long association with your company has brought great benefits.我方和贵公司的长期合作带来了巨大的利益。
  • I broke away from the association ten years ago.我10年前就脱离了那个团体。
3 formula g6gys     
n.公式;配方,外方;规则,一定的做法
参考例句:
  • His father is acting on his formula.他的父亲总是按他的原则办事。
  • Here are some applications of Taylor's formula.下面举例说明泰乐定理的应用。
4 works ieuzIh     
n.作品,著作;工厂,活动部件,机件
参考例句:
  • We expect writers to produce more and better works.我们期望作家们写出更多更好的作品。
  • The novel is regarded as one of the classic works.这篇小说被公认为是最优秀的作品之一。
5 disease etMxx     
n.疾病,弊端
参考例句:
  • The doctors are trying to stamp out the disease.医生正在尽力消灭这种疾病。
  • He fought against the disease for a long time.他同疾病做了长时间的斗争。
6 pregnant IP3xP     
adj.怀孕的,怀胎的
参考例句:
  • She is a pregnant woman.她是一名孕妇。
  • She is pregnant with her first child.她怀了第一胎。
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TAG标签:   美国英语听力  formula
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