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：
60秒科学：Ozone-Hole-Closing-Up-Thanks-to-Global-Action
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。
The fragile layer of gas that protects all living things on Earth from the sun’s harsh ultraviolet light is on the mend in other words, the ozone hole is healing. That’s according to the latest assessment by the World Meteorological Organization and the United Nations Environment Programme.
The ozone hole had been growing for decades over Antarctica. But the world recognized the problem and took action more than a quarter-century ago. The 1987 Montreal Protocol phased out the use of chlorofluorocarbons, or CFCs, responsible. With the ozone-damaging compounds gone, the layer had a chance to recover and the hole is no longer growing.
A bonus: the phase-out also helped slow global warming. Because CFCs are also powerful greenhouse gases. In fact, the agreement to address the ozone hole has actually cut five times the greenhouse gas emissions as has the Kyoto Protocol to address global warming.
The Montreal Protocol shows that the world can come together to deal with global environmental problems. The protocol also illustrates that actions may require decades to yield results. Which drives home the need to address our climate crisis now.
–David Biello
