平成 18 年度

大学院博士 (前期) 課程入学者選抜学力試験

英語［60 分］注 意 事 項

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I 次の記事を読み，以下の問いに答えよ．（配点 60 点）
Paper’s Natural Fingerprint Could Be Built-In Passport Protection
With identity theft on the rise, there is more reason than ever to ensure the authenticity of important documents such as passports and birth certificates.
°
1 Now physicists in England have discovered that many items, including paper

documents, plastic cards and product packaging, have intrinsic patterns that can beused for identification purposes.

°
2 And because the configurations are virtually

impossible to modify in a controllable manner, they could form the basis of a newtool in the fight against fraud.
All nonreflective surfaces are rough on a microscopic level. James D. R. Buchananand his colleagues at Imperial College London report today in the journal Nature on
the potential for this characteristic to “provide strong, inbuilt, hidden security fora wide range of paper, plastic or cardboard objects.” Using a focused laser to scana variety of objects, the team measured how the light scattered at four different
angles. By calculating how far the light moved from a mean value, and transforming
the fluctuations into ones and zeros, the researchers developed a unique fingerprintcode for each object. The scanning of two pieces of paper from the same packyielded two different identifiers, whereas the fingerprint for one sheet stayed thesame even after three days of regular use. Furthermore, when the team put thepaper through its paces - screwing it into a tight ball, submerging it in cold water,
baking it at 180 degrees Celsius, among other abuses - its fingerprint remained
easily recognizable.
The team calculates that the odds of two pieces of paper having indistinguishable
fingerprints are less than 10−72 . For smoother surfaces such as matte-finished plastic
cards, the probability increases, but only to 10−20 . “Our findings open the way to a
new and much simpler approach to authentication and tracking,” co-author Russell
Cowburn remarks. “This is a system so secure that not even the inventors would be
able to crack it since there is no known manufacturing process for copying surface
imperfections at the necessary level of precision.”(Adapted from Science News, Scientific American.com, 28th July 2005 issue. )— 1 —問 1 下線部 °
1 ,°
2 を日本語に訳せ．
問 2 “Paper’s Natural Fingerprint” とは，何であり，どのように得られるものか，日本語で詳しく説明せよ（100〜200 字程度）．
問 3 本文で提案されている方法が，なぜ “Built-In Passport Protection” になり得るのか，その理由を日本語で具体的にのべよ（200 字〜300 字程度）．

— 2 —II Read the following article and answer the questions. （配点 40 点）
Three Major Mistakes of Scientific Presentations

Scientists presenting their research work at a conference or other venue usually meanwell, yet their presentations can be an impenetrable fog indeed. It is not that other professionals necessarily do better; public speaking is a difficult art for all. But when the subject
matter is highly technical, the audience can more rapidly get discouraged. Here are three
shortcomings I frequently witness on the part of scientists (and other presenters).

°1

Scientists presenting at a conference typically report on a whole year of researchin a mere 15 minutes: quite a challenge. As a result, most presenters simply try tocover too much detail, losing all but a few audience members in the process. Thesefew - the experts in this very specific subject matter - are usually familiar with thiscontent if they are up to date at all, so they hardly need it repeated. Numerous
details thus serve only one person’s need, that of the speaker trying to establish
how incredibly clever (or painful) his research has been.
Beginners somehow believe they must mention in their presentation everythingthat is already written down in their proceedings paper. Not so, of course. Written
documents are for conveying details accurately and lastingly. In contrast, oralpresentations are for convincing an audience of key messages, not with detailed
evidence, but with nonverbal communication.
°2

Most audience members “get lost” in a presentation, not because they lack theknowledge or intelligence to comprehend the content, but because they lack a map.
Oral presentations indeed lack the numerous visual clues orienting the readers ofwritten documents, such as paragraphs, headings, or page layout. Most speakers doshow a preview of their presentation (the map), but one that is usually too detailed
and shown too early, so it is hard to remember. Few include truly helpful transitions— 3 —between points, indicating where they are on the map. Fewer still provide a recap of
their main points before the conclusion (and those who did provide one eventually
drop it because the chairperson said “two minutes left” about four minutes earlier).
The lack of structural clues and the sequential nature of slide shows too often
make a well-built hierarchical structure look like a long, flat, undifferentiated path,
one that will progressively disorient even the most attentive audience members.
°
3

Professionals involved in long-term work, as scientists often are, too easily lose
sight of the motivation for their work and of the outcome of it - precisely whatmost audience members are primarily interested in, especially in a presentation.
Above all, they want to know the beginning and the end of the research story.
Presentations that shun or under-develop both motivation and outcome, but jumpat or stop with the work itself are self-centered, not audience-oriented.
By failing to relate to their audience at the beginning and at the end of theirpresentations, speakers fail to make a strong first impression and a lasting lastimpression. Taking the audience for granted, most presenters start with their nameand the title of their talk. This title, which can easily run on four lines on a slide, isoften so intricate that it requires further and immediate explanation, perhaps evena few definitions of terms. How attention-getting can it be? Similarly, too manyspeakers end their presentation because they run out of time or run out of things
to say. How carefully prepared does it look? Effective presentations start and end
in a forceful, relevant, audience-oriented way.
（Adapted from IEEE Professional Communication Society Newsletter, Vol. 49,

No. 3, pp.15-16, April 2005）— 4 —問 1 The three blank lines marked °1 , °2 and °
3 indicate section headings.

Choose the appropriate one for °1 ,°2 and °
3 , from the following (a) to (e).
(a) Not Containing Large Blocks of Text(b) Neglecting the Beginning and the End(c) Simply Trying to Say Too Much(d) Having a Deep Interest in the Topic(e) Failing to Reveal the Structure
問 2 Summarize each section marked °1 ,°2 and °
3 , in your own words in two or

three English sentences.

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博士 (前期)・英語

氏 名

英語 解答用紙 （1）
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受験番号科目

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氏 名

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受験番号科目英名語

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英語 (3)（枠内に解答を書くこと）

氏 名

英語 解答用紙 （4）

受験番号
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問 題 番 号

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名

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