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：Oldest-Known-Hearth-Unearthed-in-Israel
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。
Early humans began using fire about a million years ago. But it’s been unclear when we began to control fire for our use, a key advance in the development of culture and civilization.
Now, archaeologists report the discovery of the most ancient known hearth for making and using fire. The hearth appears to be 300,000 years old.
Scientists found evidence of wood ash in the center of Qesem Cave in Israel. They removed a chunk of sediment and hardened it in the lab, so they could slice layers and evaluate them under the microscope.
They found burnt bones, flint, wood ash and bits of burnt clay. There’s charred flint and animal bones near the hearth, along with flint tools further away used for activities such as butchering. The research is in the Journal of Archaeological Science.
The investigators say the large hearth was used repeatedly over time for a large group of people. Its centralized location and division of labor areas suggests social structure and spatial planning.
The finding helps delineate a turning point in human social and cognitive development. This and other such hearths were crucibles that helped forge modern humanity and eventually us.
–Cynthia Graber
