环球慢速英语 特殊人群(2)（在线收听）

Voice 1: Since early in the year 2005, scientists and doctors have been studying this family. The five young people have spent time in hospital. They have had many medical tests. They have other problems as well as their difficulty with walking. They have very limited language. They are unable to count from one to ten. And the different parts of their bodies do not co-operate well with one another.

声音1：科学家和医生从2005年年初开始研究这个家庭。这5名年轻人在医院住了一段时间。他们进行了许多项医学测试。除了行走困难，他们还有其他问题。他们的语言能力有限。他们不能从1数到10。他们身体的不同部位无法互相协作。

But what is causing these problems? There has been much discussion and disagreement about them. Did they just lack good food and the right kind of care when they were babies? Or are their problems genetic?

那造成这些问题的原因是什么？围绕他们有很多讨论和分歧。只是因为他们在婴儿时期缺乏营养和正确的护理吗？还是因为他们有基因问题？

Voice 2: The scientists discovered that these five young people suffer from a rare genetic condition. It is called cerebellar hypoplasia. This condition is caused by a group of damaged genes. The damaged genes prevent an important part of the brain from developing. It is the part of the brain that affects how the parts of the body co-operate with each other.

声音2：科学家发现，这5名年轻人患有罕见的遗传病。这种遗传病是小脑发育不全。是由受损基因引发。受损基因导致大脑一个重要的部位无法开发。这个部位在大脑中负责影响身体各部位互相协作的方式。