英语听力精选进阶版 14209

Drug-resistant malaria¹

Summary

29 April 2013

A new kind of malaria has appeared which is not affected² by the main drug against the disease.

Reporter:

Rebecca Morelle

Report

Artemisinin is a frontline drug in the fight against malaria. 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 parasites³ 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 genetic⁴ fingerprint⁵ will help them to quickly detect and track these strains if they spread.

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 affected   

adj.不自然的，假装的

参考例句：

• She showed an affected interest in our subject.她假装对我们的课题感到兴趣。
• His manners are affected.他的态度不自然。

3 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。

4 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。

5 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。