英语听力精选进阶版 7292

科学家们新发现了一种引发疟疾的寄生虫菌株，这类菌株对现有的治疗疟疾最有效的药物青蒿素具有抗药性。

Artemisinin is a frontline drug in the fight against malaria¹. It's used around the world, and can clear the infection in just a few days. But reports of resistance began to emerge in western Cambodia in 2008, and this has now spread to other areas in South East Asia.

To investigate, scientists sequenced the genomes of more than 800 malaria-causing parasites² collected from all around the world. They found that some of the strains present in Cambodia were significantly different to the rest, and these were able to withstand artemisinin treatment.

The researchers don't yet know how the parasites are beating the drugs. But they say understanding their genetic³ fingerprint⁴ will help them to quickly detect and track these strains if they spread.

Quiz 听力测验

How long does it take artemisinin to cure a malaria infection?

A few days.

In which places have artemisinin-resistant parasites been found?

In Cambodia and other parts of South East Asia.

True or false: Scientists understand how the parasites are beating artemisinin.

False. The researchers don't yet know how the parasites are beating the drugs.

True or false: Scientists say checking malaria sufferers' fingerprints⁵ can help them track the disease.

False. Scientists say understanding the parasites' genetic fingerprint will help them to quickly detect and track these strains if they spread.

Glossary 词汇表

frontline 一线的

resistance 抵制，免疫力

emerge 出现

sequenced the genomes 基因排列

parasites 寄生虫，寄生物

strains 种类

withstand 耐得住，抗得起

genetic fingerprint 基因指纹

detect 发现，查明

track 追踪研究

1 malaria   

n.疟疾

参考例句：

• He had frequent attacks of malaria.他常患疟疾。
• Malaria is a kind of serious malady.疟疾是一种严重的疾病。

2 parasites   

寄生物( parasite的名词复数 )； 靠他人为生的人； 诸虫

参考例句：

• These symptoms may be referable to virus infection rather than parasites. 这些症状也许是由病毒感染引起的，而与寄生虫无关。
• Kangaroos harbor a vast range of parasites. 袋鼠身上有各种各样的寄生虫。

3 genetic   

adj.遗传的，遗传学的

参考例句：

• It's very difficult to treat genetic diseases.遗传性疾病治疗起来很困难。
• Each daughter cell can receive a full complement of the genetic information.每个子细胞可以收到遗传信息的一个完全补偿物。

4 fingerprint   

n.指纹；vt.取...的指纹

参考例句：

• The fingerprint expert was asked to testify at the trial.指纹专家应邀出庭作证。
• The court heard evidence from a fingerprint expert.法院听取了指纹专家的证词。

5 fingerprints   

n.指纹( fingerprint的名词复数 )v.指纹( fingerprint的第三人称单数 )

参考例句：

• Everyone's fingerprints are unique. 每个人的指纹都是独一无二的。
• They wore gloves so as not to leave any fingerprints behind (them). 他们戴着手套，以免留下指纹。 来自《简明英汉词典》