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。悉尼文波雅思PTE培训学校专门为澳洲，尤其是悉尼、墨尔本的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：
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。
Keyboards don’t exactly spring to mind when you think of high–tech innovations, especially now that we have voice and even gesture controls for our gadgets.
Still, a new device out of the Georgia Institute of Technology is taking typing in a smart direction.
The Georgia Tech researchers have developed an intelligent keyboard that captures information about the force and length of keystrokes.
They say these patterns are unique to different typists and could lead to a new type of biometric security, locking out anyone who doesn’t type like you do.
The keyboard can also power itself using something called contact electrification.
It generates current when your finger tips touch the keys, which are coated with an electrode material.
So we’re talking about a wireless keypad that never needs batteries.
The researchers published a paper about their intelligent keyboard in the journal ACS Nano.
Maybe the best feature of the keyboard is that it’s basically made from layers of plastic and has no mechanical keys.
That means you could drop crumbs or even spill coffee on it without any damage—forget voice recognition, now you’re talking!
electrification：[i,lektrifi’keiʃən] n.电气化
biometric：[,baɪəʊ’metrɪk] n.计量生物学
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