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：
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 Paris Climate Agreement pledges to limit global temperature rise to “well below 2degrees Celsius.”
“But really nobody—and certainly not the United States—has laid out the plan to get there.”
Drew Shindell, a climate scientist at Duke University.
“So we wanted to model, what would be the effects of actually putting into place policies thatwould get us to a level we’ve pledged to reach?”
Shindell and his colleagues forecast that, to stay within two degrees C, we’d have to electrifynearly every car in the nation.
And we’d have to get more than half our power from renewables.
And if we do all that?
In addition to keeping warming in check, the researchers estimate that we’d avoid nearly300,000 premature deaths due to air pollution in the U.S., by 2030.
And they say the health–related financial benefits of that clean energy conversion—amounting to $250 billion dollars over the next 15 years—would likely outweigh the cost ofimplementing all that new technology.
The analysis appears in the journal Nature Climate Change.
Big caveat: a lot of politicians these days don’t think on 15-year time scales.
They’re looking only as far as the next election.
“Right, but you start putting in these policies and you know you see the benefits for publichealth the same year the policies start to go into place.
There’s no lag time.
Air quality is something that, unlike climate, doesn’t take decades.
Air quality is responding to what came out of a coal plant or a vehicle tailpipe last week, notlast year.”
Meaning cutting carbon pollution might have real impacts on the nation’s health and wealthalmost immediately for us…and not just for our children’s children.
巴黎气候协议所承诺的是将全球温度升高控制在2度以内。
“但实际上所有国家，当然不仅是包括美国在内没有制订出对此的计划。”
杜克大学的气候科学家德鲁斯林德尔评价道。
“因此我们希望制作一个将这些政策理论付诸实施后会产生怎样影响的模型。”
斯林德尔和他的同事们预测，为了将温度变化控制在2摄氏度以内，每年全国所有汽车都要使用电力。
而且将有一半以上的电力来自可再生资源。
如果全部来自于可再生资源会怎样呢?
此外为了控制气候变暖，研究人员估计截止到2030年会避免30万人因空气污染过早死亡。
研究人员表示在未来15年，清洁能源转化的健康收益将达到2500亿美元，这将远远超过所有新技术消耗的成本。
这项研究已在《自然气候变化》杂志上发表。
重要的提醒:很多政客认为不需要花费15年时间。
他们的关注点只到下一次总统选举。
“是这样的，但这些政策开始真正实施后，第一年你就能看到它为公共健康所带来的益处。
时间不会滞后。
与气候变化不同的是，空气质量不需要花费数十年。
空气质量体现的是上周煤电厂及汽车尾气的排放状况，而不是去年的数字。
这意味着减少碳污染会即刻对整个国家的健康及财富产生影响，而不只牵连我们 子孙后代。”
