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  3. An artificial "tongue" which can taste subtle differences between whiskies can help tackle the counterfeit alcohol trade, accord

An artificial "tongue" which can taste subtle differences between whiskies can help tackle the counterfeit alcohol trade, accord

admin2021-06-15  27
问题         An artificial "tongue" which can taste subtle differences between whiskies can help tackle the counterfeit alcohol trade, according to engineers.
        They have built a tiny taster which exploits the properties of gold and aluminium to test differences between the spirits.
        The technology can pick up on the subtler distinctions between the same whisky aged in different barrels.
        It can tell the difference between whiskies aged for 12, 15 and 18 years. Engineers say the tongue "tasted" the differences with greater than 99% accuracy.
        Alasdair Clark, of the University of Glasgow’s school of engineering, said: "We call this an artificial tongue because it acts similarly to a human tongue—like us, it can’t identify the individual chemicals which make coffee taste different to apple juice but it can easily tell the difference between these complex chemical mixtures."
        "We’re not the first researchers to make an artificial tongue, but we’re the first to make a single artificial tongue that uses two different types of nanoscale metal ’taste buds’, which provides more information about the ’taste’ of each sample and allows a faster and more accurate response.
        He said the tongue could be used to "taste" virtually any liquid—not just whisky.
        Dr. Clark added: "In addition to its obvious potential for use in identifying counterfeit alcohols, it could be used in food safety testing, quality control, security—really any area where a portable, reusable method of tasting would be useful."
        Whisky was poured over a chequerboard pattern of the two metals—which act as "taste buds"— and researchers then measured how they absorbed light while submerged.
        Subtle differences which were highlighted on the artificial tongue allowed the team to identify different types of the spirits.
        The team used the tongue to sample a selection of whiskies from Glenfiddich, Glen Marnoch and Laphroaig.
        Research was conducted by engineers and chemists from the universities of Glasgow and Strathclyde.
        Their paper, titled "Whisky tasting using a bimetallic nanoplasmonic tongue", is published in Nanoscale.
What does this passage mainly talk about?
选项 A、How scientists invent artificial "tongue".
B、Scientists successfully find methods to taste subtle differences between whiskies.
C、An artificial "tongue" to tackle counterfeit alcohol.
D、Methods to achieve food safety testing.
答案C
解析 主旨题。题干：这篇文章主要讲了什么?通读全文可知，文章通篇都在围绕artificial tongue展开，第一段就开门见山地指出人造舌头这项技术能帮助识别不同威士忌之间的细微差别，从而打击假酒交易；紧接着下文分别介绍了“人造舌头”这个名称的来源，它的工作原理、功能研究者等，由此可知C项“一种用来应对假酒的人造‘舌头’”最能概括文章内容。A项“科学家如何发明人造舌头”，文章中并未提及相关内容，A项错误。B项“科学家成功地找到了品尝威士忌之间细微差别的方法”，这只是在陈述一个事实，即科学家通过发明“人造舌头”来鉴定威士忌之间的细微差别，但没有涉及文章的关键词artificial tongue，不具有概括意义，B项错误。D项“实现食品安全检测的方法”，食品安全检测只是“人造舌头”的功能之一，是文章的一个细节，并不能概括文章主要内容，且D项中methods为复数，而文章中只提到了人造舌头这一项发明，没有列出多个食品安全检测方法，D项错误。故本题选C。
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