PTE听力口语练习素材:科学60秒-Pain Pills

PTE考生目前最大的问题之一就是练习题缺乏。除了有限的基本官方书(PLUS,Testbuilder, OG)之外就没有题了。很多英语基础不是很扎实的同学很难找到练习材料。墨尔本文波雅思PTE培训学校专门为墨尔本,悉尼PTE考生准备了适合PTE听力阅读练习的科学60秒。各位PTE同学可以练习PTE听力中的summarise spoken text和PTE口语中的retell lecture,练习记笔记技巧和复述。废话少说,下面开始:



60秒科学节目(SSS)是科学美国人网站的一套广播栏目,英文名称:Scientific American – 60 Second Science,节目内容以科学报道为主,节目仅一分钟的时间,主要对当今的科学技术新发展作以简明、通俗的介绍,对于科学的发展如何影响人们的生活环境、健康状况及科学技术,提供了大量简明易懂的阐释。

The pain-relieving effects of drugs like ibuprofen are well known. But ibuprofen and its relatives, known as nonsteroidal anti-inflammatory drugs, may someday have another use as antibiotics.

Researchers tested three anti-inflammatory drugs: bromfenac, used in eye drops, and carprofen and vedaprofen, both for treating conditions like arthritis in dogs. The investigators found that all three drugs bind to something called the “DNA clamp” in bacteria. That clamp is essential to repairing and replicating DNA. By jamming it, the painkillers can actually kill live E. coli¡ªin a test tube, at least.

The findings appear in the journal Chemistry & Biology.

Study author Aaron Oakley, of Australia’s University of Wollongong, says we still need clinical trials to tell if this trick holds true in humans. But this study is a first step. “I guess it alerts a lot of clinicians to the fact that some of the nonsteroidal anti-inflammatories that they’re using may have this off-target effect.” And it gives drug developers like Oakley and his colleagues a whole new way to attack antibiotic-resistant bacteria.

–Christopher Intagliata


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