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。
It seems the first resident of Earth to break thesound barrier wasn’t Chuck Yeager, after all.
He was about a hundred million years ,too late.
Apatosaurus was a cousin of Brontosaurus,but evenbigger,with a 40-foot-tail more than three feet thickat the butt end but no wider than your pinky at thetip.
That dainty end made the tail too fragile for clubbing attackers.
So what was it for?Maybe this:
The idea that Apatosaurus might have used its tail like a bullwhip—to scare off predators,communicate or even show off for potential mates—gained traction about 20 years ago.
That’s when paleontologist Philip Currie of the University of Alberta teamed with NathanMyhrvold to create a computer simulation that showed the whip-cracking tail was plausible.
Myhrvold is the founder and CEO of Intellectual Ventures
an invention firm in the Seattle suburbs—where I’m executive editor.
This week at a meeting of the Society for Vertebrate Paleontology, Myhrvold, Currie and DhileepSivam, also of Intellectual Ventures, unveiled a quarter-scale physical model of an Apatosaurustail made from aluminum vertebrae and steel tendons.
Give the big end of the model a strong push and pull, and it does this:
Our analysis of high-speed video of the tail in action found that the tip moves at more than800 miles an hour—fast enough to break the sound barrier and create a small sonic boom.
A full-size apatosaur whipping its tail in this way could probably have produced a sound loudenough to shatter human eardrums.
Which must have really gotten their attention back in the late Jurassic.
Apatosaurus：n.迷惑龙
Brontosaurus：n.雷龙
Plausibles： [‘plɔːzɪb(ə)l] adj.貌似有理的
