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：
Airgun Oil Exploration Wrongs Right Whales
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。
[Audio of blast] That’s an air gun. By exploding compressed air underwater, scientists map the subsurface of the seafloor. The process can reveal new deposits of fossil fuels and other important information—and now industry has permission to use airguns off the U.S. east coast. Which means more dead whales.
Cetaceans and other marine life rely on their ears to navigate. Air guns deafen them, if not kill them outright, as the U.S. Department of Interior admits. The sound is 250 decibels or more, much louder than a jet engine. Dozens of melon-headed whales washed up dead on Madagascar beaches following similar seismic air gun testing by ExxonMobil in 2008.
At new risk are cetaceans like the North Atlantic right whales. Five hundred or fewer remain. They’ll have something like dynamite going off in their oceanic living room every 10 seconds for days or even weeks at a time now.
Alternatives exist, from seafloor vibration-producers to revamped airguns that produce less sound but equally good images. Such choices might provide a little more peace and quiet in what’s become a very noisy ocean.—David Biello
