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：Hand Soap Ingredient Can Up Body Bacteria Burden
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 antimicrobial triclosan is a common ingredient in hand soap. But it’s also found in shampoos, deodorants, toothpaste, even lip gloss. So it’s not too surprising that triclosan also shows up in blood, urine, breast milk and mucus. But here’s the weird thing°™those triclosan residues may actually boost bacterial growth in our bodies. So says a study in the journal mBio. [Adnan K. Syed et al, Triclosan Promotes Staphylococcus aureus Nasal Colonization]
Researchers swabbed inside the noses of 90 adults. 37 of the 90 tested positive for triclosan°™and those who did were twice as likely to have the bug Staphylococcus aureus living in their noses. Rats, too, were more susceptible to staph if fed triclosan.
Seems counterintuitive, but when bacteria are exposed to sublethal levels of antibiotics, they get stressed, and °∞they attach to surfaces and hunker down, in things we call biofilms.” That’s study author Blaise Boles, of the University of Michigan.
He says that stash of staph could put your health at risk. “Individuals that have Staph. aureus in their nose before they undergo surgery are about seven times more likely to get a Staph. aureus surgical site infection.” Which is when you’ll really need those antibiotics.