PTE听力口语练习-科学60秒-Neanderthal Diners

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,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:



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When it comes to Neanderthal diets, the consensus has been: they ate meat. Lots of meat. But now it looks like Neanderthals chomped on a fair amount of veggies, too.

Researchers have had a tough time discerning the Neanderthals’ diet. They evaluated carbon and nitrogen isotopes in bones, but those only correspond to some general kinds of proteins. Even plant remains in Neanderthal teeth could have gotten there because a tasty animal carcass itself contained traces of a last vegetarian meal.

So the researchers relied on fool-proof evidence they studied Neanderthal fecal remains from a site in southern Spain called El Salt. Neanderthals made it their home about 50,000 years ago.

The researchers analyzed the samples for chemical compounds that can only result from metabolizing cholesterol from meat or from metabolizing plants. All five samples showed evidence of meat consumption. But two revealed the digestion of plants. Meaning that Neanderthals did try vegetation, likely tubers and nuts. The study is in the journal PLoS One.

The scientists intend to use the same technique to examine soil samples at a 1.8 million-year-old site in Tanzania. In the hopes that any remaining poop may deliver an ancestral-diet scoop.

–Cynthia Graber


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