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：
Fake Fecal Transplants for Gut RePOOPulation
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。
A laboratory-made slurry of healthy bacteria could replace human fecal matter in stool transplants to treat bacterial infections. Gretchen Cuda Kroen reports
When normal populations of healthy bacteria in the gut get out of whack, the result can be the stubborn and recurrent bacterial infection known as Clostridium difficile – C-dif. The main symptom is nearly constant and debilitating diarrhea.
One of the most successful therapies for C-dif is to repopulate the intestines with healthy bacteria that keep that nasty C-dif in check. There’s been only one way to do this: import a small sample of a healthy person’s feces. That’s right. A poop-transplant.
But the “ick” factor of fecal transplants is a hurdle for some, as well as a regulatory conundrum for the FDA. Which is why researchers at the University of Guelph in Canada came up with a synthetic alternative: a laboratory-made slurry of healthy bacteria they’re calling “rePOOPulate.” The research is published in the journal Microbiome. [Elaine O. Petrof et al., Stool substitute transplant therapy for the eradication of Clostridium difficile infection: “RePOOPulating” the gut]
It’s intended to replace human fecal matter in stool transplants, and researchers say it has several advantages. The bacteria are carefully controlled and can be tailored to the patient. It reduces the risk of transmitting disease. And, well, it’s just less gross.
—Gretchen Cuda Kroen