PTE听力口语练习-科学60秒-Gum Chewing

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,PTE听力口语-科学60秒-Frosty Moss练习记笔记技巧和复述。废话少说,下面开始:

Gum Chewing May Improve Concentration


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。

Volunteers who chewed gum during an exercise focused and remembered number sequences better than non-gum chewers. Amy Kraft reports


Teachers might want to think twice about posting no gum-chewing signs in the classroom. It turns out that the sticky substance might help students concentrate.

Researchers had two groups of 20 people each listen to a 30-minute recording that included a sequence of numbers. After listening, the participants were asked to remember the sequence. But only one groups chewed gum—and they had higher accuracy rates and faster reaction times than the non-gum chewers. Those chewing gum also maintained focus longer during the exercise. The study is in the British Journal of Psychology—and contradicts a 2012 study that found gum chewing decreased short-term memory performance. [Kate Morgan, Andrew J. Johnson and Christopher Miles, Chewing gum moderates the vigilance decrement]

The researchers say that gum increases the flow of oxygen to regions of the brain responsible for attention. More oxygen can keep people alert and improve their reflexes. Research also shows that you won’t get the same effect by just pretending to chew gum.

So the next time your mind is wandering in class, maybe try some gum. If it doesn’t help you concentrate you’ll at least be asked to leave.

—Amy Kraft



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