题文
We already have iris(虹膜) and fingerprint scanning but noses could be an even better method of identification, says a study from the University of Bath, UK.
The researchers scanned noses in 3D and characterized them. They found 6 main nose types: Roman, Greek, Nubian, hawk, snub and turn-up. Since they are hard to hide, the study says, noses would work well for identification.
The researchers say noses have been overlooked in the growing field of biometrics, studies into ways of identifying distinguishing characters of people. "Noses are out standing facial features and yet their use as a biometric has been largely unexplored," said the University of Bath's Dr Adrian Evans. "Ears have been looked at in detail, eyes have been looked at in terms of iris recognition but the nose has been ignored."
The researchers used a system called PhotoFace, developed by researchers at the University of the West of England in Bristol, for the 3D scans.
Several measurements by which noses can be recognised were identified and the team developed recognition software based on these parameters(范围)
" This initial work is nowhere as good as iris identification but the nose has pros and cons," said Dr Evans.
There's no magic biometric that solves all your problems. Irises are a powerful biometric but can be difficult to get accurately and can be easily covered by eyelids or glasses. People can easily cover up their ears, with their hair for example.
"Of course you can have a broken nose or wear a false nose or have plastic surgery but to have nose surgery to change your identity is fairly obvious. Irises are very good for recognition but you can put in dilation drops which change the iris completely. Not all techniques are reliable," he said.
The research is based on a study of 40 noses and the data base has now been expanded to 160 for further tests to see if the software can pick out people from a larger group and distinguish between relatives.
Dr Evans hopes the method can be proven to be effective on this larger sample. "The technique certainly shows potential, perhaps to be used in combination with other identification methods," he said.
57. Where can you probably read this article?
A. In a newspaper about education.
B. In a newspaper about science
C. In a newspaper about software
D. In a newspaper about dress-up
58. Which is true according to the passage?
A. Dr Adrian Evans works at the University of the West of England in Bristol,
B. The researchers used a system called Photoshop for the 3D scans.
C. The research is based on a study of 160 noses.
D. The research team developed their own recognition software.
59. The word overlooked in the third paragraph possibly means:
A. well-studied B. carefully-scanned
C. wholly-recognized D. carelessly-studied
60. We can infer from the last three paragraphs that_________.
A. The consequence of the method remains to be seen
B. Dr Evans is sure that the method can be used to pick out uncles and nephews.
C. More new soft wares will be developed to do the research.
D. This method can still be used if your nose is broken, 题型：未知 难度：其他题型
答案
小题1:B
小题2:D
小题3:D
小题4:A
解析
考点
据考高分专家说，试题“We already have iris.....”主要考查你对 [政治经济类阅读 ]考点的理解。政治经济类阅读
政治经济类文章的概念：
要做好这类阅读，平时就要注意了解国内外发生的政治经济大事，掌握一定背景知识，对这类文章的叙述特点及内容安排有一定了解，还要扩展这方面的词汇。阅读这类文章，要抓住文章的核心，即文章整体和各段主要在说什么，也要注意段落之间的逻辑关系。
如何备考政治经济类阅读理解题：
【题型说明】政治经济类阅读文章是高考常选材料之一。该类文章时代气息浓郁，语言鲜活，但熟字新义词、超纲词及专业词语多，长句、难句多。政治类文章大多数是同学们感性趣的内容，读起来倒有似曾相识的感觉，经济类文章读起来就像是雾里看花，文章看完，一头雾水。再加之这类文章的命题侧重于词义猜测、推理判断和文章主旨，同学们对这类题材是望而生畏。
【备考策略】建立心理优势。针对不同体裁的文章，我们要采取相应的阅读方法和技巧。政治类文章多采用记叙文形式，我们可采取“顺读法”，以便抓关键语句，领会文章主旨；而经济类文章则多采用说明文形式，我们则可以采取“逆读法”，先读试题，再从文章中查找有用信息。若遇到的确难读的材料。千万不用着急，因为你觉得难，其他人也一定是同感。在高考前，我们就要有这种心理准备，高考试卷肯定有一、两篇难以阅读的材料。不过，我们平时可以有意识地从报刊杂志上找一些较难的阅读材料来阅读，以培养自己迎难而上的心理素质。
【答题方法】
1、寻找主干：
根据英语中五种基本句型结构，把句子中的主语、谓语、宾语、表语等主要成分找出来，其他成分如定语、状语、补语等则易于理解。找到了句子主干，句子的意思至少明白了一半。
2、剔除从句：
在一个长句中可能会出现若干个从句，在理解时，如果把各个从句剔除出来单独理解，然后把大意拼凑起来，整个长句的意思就会明白六、七分。
3、辨别分句：
一个长句如果是由几个并列、转折、递进、对比关系的分句组成，句中往往有表示这些分句关系的连接词，只要能弄清楚分句和分句之间的逻辑关系，再把各层分句的意思加以连贯，整个长句的句意基本上能跃然脑中。
4、寻找关键词：
如果一个句子看完，一点句意的感觉也没有，下下策就是抓住句中的关键词，通过关键词大体弄懂这个长句的意思。
