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：Drug-Resistant Bacteria Hang Out in Hog Workers
听力内容：
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。
Careful what you sniff. Especially if you work at an industrial hog farm. Because a small study finds that drug-resistant bacteria may hang out in the noses of some workers even after four days away from work following exposure. Almost half of the tested workers continued to harbor drug-resistant bacteria two weeks after their initial exposure, perhaps due to re-exposures on the job.
The unwelcome stowaways include so-called “superbug” MRSA, as well as other bacteria associated with an increased risk of staph infections. The research is in the journal Occupational Environmental Medicine. [Maya Nadimpalli et al: Persistence of livestock-associated antibiotic-resistant Staphylococcus aureus among industrial hog operation workers in North Carolina over 14 days]
At industrial-sized farms antibiotics are often overused to promote animal growth to get them to market sooner. Drug-resistant strains of bacteria quickly evolve.
This investigation involves 22 hog farm workers in North Carolina. It’s the first study to find that bacteria hitches a ride in employees’ nasal passages and can linger there for days. The longer the stay, the more opportunities for the bacteria to jump to workers’ families and social networks. However, this study did not determine whether the nostril-dwelling bacteria causes harm in these people.
Nevertheless, carrying around drug-resistant bacteria in the warm, moist nasal environment is nothing to sneeze at.
—Dina Fine Maron
