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。
This is Scientific American — 60-Second Science. I’m Christopher Intagliata.
Last time you hit the beach—and yeah, probably seems like a distant memory in the currently chilly parts of the world—did you pack sunscreen? A beach umbrella? Or both?
Researchers put the two sun-protecting products to the test. First contender: a beach umbrella, which they evaluated with a spectrophotometer to see if UV rays passed through. They didn’t…good sign so far. The second contender was sunscreen: 100 SPF.
Then the scientists rallied 81 people to go sunbathing at a lake outside Dallas, for three hours around mid-day. Half got beach umbrellas. The other half, all-you-can-apply sunscreen. And because this is science—not a day at the beach, eh, let me rephrase that, not a walk in the park—the participants were not allowed to take a dip.
Twenty four hours after the solar exposure—enough time for any sunburns to ripen—the researchers visually inspected the sunseekers’ skin. And they found that three times as many umbrella-sitters had sunburns somewhere on their bodies, compared to their sunscreen-slathering neighbors. And since the umbrellas themselves block UV rays, the burns are likely due to UV light bouncing off the sand and other surfaces, then hitting unprotected skin. The study is in JAMA Dermatology.
The caveat? Even sunscreen users weren’t completely burn-free. So the researchers—some of whom, full disclosure, work at Johnson & Johnson, which makes sunscreen—instead recommend hedging your bets. Wear a wide-brimmed hat. Sit in the shade. Use sunblock, too. To ensure you don’t need that fourth strategy: aloe vera.
Thanks for listening for Scientific American — 60-Second Science Science. I’m Christopher Intagliata.
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